1 /* Jim - A small embeddable Tcl interpreter
2 * Copyright 2005 Salvatore Sanfilippo <antirez@invece.org>
3 * Copyright 2005 Clemens Hintze <c.hintze@gmx.net>
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * A copy of the license is also included in the source distribution
12 * of Jim, as a TXT file name called LICENSE.
14 * Unless required by applicable law or agreed to in writing, software
15 * distributed under the License is distributed on an "AS IS" BASIS,
16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17 * See the License for the specific language governing permissions and
18 * limitations under the License.
22 #define JIM_OPTIMIZATION /* comment to avoid optimizations and reduce size */
25 #include <pkgconf/jimtcl.h>
28 #define JIM_DYNLIB /* Dynamic library support for UNIX and WIN32 */
29 #endif /* JIM_ANSIC */
41 /* Include the platform dependent libraries for
42 * dynamic loading of libraries. */
44 #if defined(_WIN32) || defined(WIN32)
49 #define WIN32_LEAN_AND_MEAN
52 #pragma warning(disable:4146)
57 #endif /* JIM_DYNLIB */
60 #include <cyg/jimtcl/jim.h>
69 /* -----------------------------------------------------------------------------
71 * ---------------------------------------------------------------------------*/
73 /* A shared empty string for the objects string representation.
74 * Jim_InvalidateStringRep knows about it and don't try to free. */
75 static char *JimEmptyStringRep
= (char*) "";
77 /* -----------------------------------------------------------------------------
78 * Required prototypes of not exported functions
79 * ---------------------------------------------------------------------------*/
80 static void JimChangeCallFrameId(Jim_Interp
*interp
, Jim_CallFrame
*cf
);
81 static void JimFreeCallFrame(Jim_Interp
*interp
, Jim_CallFrame
*cf
, int flags
);
82 static void JimRegisterCoreApi(Jim_Interp
*interp
);
84 static Jim_HashTableType JimVariablesHashTableType
;
86 /* -----------------------------------------------------------------------------
88 * ---------------------------------------------------------------------------*/
91 * Convert a string to a jim_wide INTEGER.
92 * This function originates from BSD.
94 * Ignores `locale' stuff. Assumes that the upper and lower case
95 * alphabets and digits are each contiguous.
98 #define JimIsAscii(c) (((c) & ~0x7f) == 0)
99 static jim_wide
JimStrtoll(const char *nptr
, char **endptr
, register int base
)
101 register const char *s
;
102 register unsigned jim_wide acc
;
103 register unsigned char c
;
104 register unsigned jim_wide qbase
, cutoff
;
105 register int neg
, any
, cutlim
;
108 * Skip white space and pick up leading +/- sign if any.
109 * If base is 0, allow 0x for hex and 0 for octal, else
110 * assume decimal; if base is already 16, allow 0x.
115 } while (isspace(c
));
124 if ((base
== 0 || base
== 16) &&
125 c
== '0' && (*s
== 'x' || *s
== 'X')) {
131 base
= c
== '0' ? 8 : 10;
134 * Compute the cutoff value between legal numbers and illegal
135 * numbers. That is the largest legal value, divided by the
136 * base. An input number that is greater than this value, if
137 * followed by a legal input character, is too big. One that
138 * is equal to this value may be valid or not; the limit
139 * between valid and invalid numbers is then based on the last
140 * digit. For instance, if the range for quads is
141 * [-9223372036854775808..9223372036854775807] and the input base
142 * is 10, cutoff will be set to 922337203685477580 and cutlim to
143 * either 7 (neg==0) or 8 (neg==1), meaning that if we have
144 * accumulated a value > 922337203685477580, or equal but the
145 * next digit is > 7 (or 8), the number is too big, and we will
146 * return a range error.
148 * Set any if any `digits' consumed; make it negative to indicate
151 qbase
= (unsigned)base
;
152 cutoff
= neg
? (unsigned jim_wide
)-(LLONG_MIN
+ LLONG_MAX
) + LLONG_MAX
154 cutlim
= (int)(cutoff
% qbase
);
156 for (acc
= 0, any
= 0;; c
= *s
++) {
162 c
-= isupper(c
) ? 'A' - 10 : 'a' - 10;
167 if (any
< 0 || acc
> cutoff
|| (acc
== cutoff
&& c
> cutlim
))
176 acc
= neg
? LLONG_MIN
: LLONG_MAX
;
181 *endptr
= (char *)(any
? s
- 1 : nptr
);
186 /* Glob-style pattern matching. */
187 static int JimStringMatch(const char *pattern
, int patternLen
,
188 const char *string
, int stringLen
, int nocase
)
193 while (pattern
[1] == '*') {
198 return 1; /* match */
200 if (JimStringMatch(pattern
+1, patternLen
-1,
201 string
, stringLen
, nocase
))
202 return 1; /* match */
206 return 0; /* no match */
210 return 0; /* no match */
220 not = pattern
[0] == '^';
227 if (pattern
[0] == '\\') {
230 if (pattern
[0] == string
[0])
232 } else if (pattern
[0] == ']') {
234 } else if (patternLen
== 0) {
238 } else if (pattern
[1] == '-' && patternLen
>= 3) {
239 int start
= pattern
[0];
240 int end
= pattern
[2];
248 start
= tolower(start
);
254 if (c
>= start
&& c
<= end
)
258 if (pattern
[0] == string
[0])
261 if (tolower((int)pattern
[0]) == tolower((int)string
[0]))
271 return 0; /* no match */
277 if (patternLen
>= 2) {
284 if (pattern
[0] != string
[0])
285 return 0; /* no match */
287 if (tolower((int)pattern
[0]) != tolower((int)string
[0]))
288 return 0; /* no match */
296 if (stringLen
== 0) {
297 while(*pattern
== '*') {
304 if (patternLen
== 0 && stringLen
== 0)
309 int JimStringCompare(const char *s1
, int l1
, const char *s2
, int l2
,
312 unsigned char *u1
= (unsigned char*) s1
, *u2
= (unsigned char*) s2
;
318 u1
++; u2
++; l1
--; l2
--;
320 if (!l1
&& !l2
) return 0;
324 if (tolower((int)*u1
) != tolower((int)*u2
))
325 return tolower((int)*u1
)-tolower((int)*u2
);
326 u1
++; u2
++; l1
--; l2
--;
328 if (!l1
&& !l2
) return 0;
333 /* Search 's1' inside 's2', starting to search from char 'index' of 's2'.
334 * The index of the first occurrence of s1 in s2 is returned.
335 * If s1 is not found inside s2, -1 is returned. */
336 int JimStringFirst(const char *s1
, int l1
, const char *s2
, int l2
, int index
)
340 if (!l1
|| !l2
|| l1
> l2
) return -1;
341 if (index
< 0) index
= 0;
343 for (i
= index
; i
<= l2
-l1
; i
++) {
344 if (memcmp(s2
, s1
, l1
) == 0)
351 int Jim_WideToString(char *buf
, jim_wide wideValue
)
353 const char *fmt
= "%" JIM_WIDE_MODIFIER
;
354 return sprintf(buf
, fmt
, wideValue
);
357 int Jim_StringToWide(const char *str
, jim_wide
*widePtr
, int base
)
361 #ifdef HAVE_LONG_LONG
362 *widePtr
= JimStrtoll(str
, &endptr
, base
);
364 *widePtr
= strtol(str
, &endptr
, base
);
366 if ((str
[0] == '\0') || (str
== endptr
) )
368 if (endptr
[0] != '\0') {
370 if (!isspace((int)*endptr
))
378 int Jim_StringToIndex(const char *str
, int *intPtr
)
382 *intPtr
= strtol(str
, &endptr
, 10);
383 if ( (str
[0] == '\0') || (str
== endptr
) )
385 if (endptr
[0] != '\0') {
387 if (!isspace((int)*endptr
))
395 /* The string representation of references has two features in order
396 * to make the GC faster. The first is that every reference starts
397 * with a non common character '~', in order to make the string matching
398 * fater. The second is that the reference string rep his 32 characters
399 * in length, this allows to avoid to check every object with a string
400 * repr < 32, and usually there are many of this objects. */
402 #define JIM_REFERENCE_SPACE (35+JIM_REFERENCE_TAGLEN)
404 static int JimFormatReference(char *buf
, Jim_Reference
*refPtr
, jim_wide id
)
406 const char *fmt
= "<reference.<%s>.%020" JIM_WIDE_MODIFIER
">";
407 sprintf(buf
, fmt
, refPtr
->tag
, id
);
408 return JIM_REFERENCE_SPACE
;
411 int Jim_DoubleToString(char *buf
, double doubleValue
)
416 len
= sprintf(buf
, "%.17g", doubleValue
);
419 if (*s
== '.') return len
;
422 /* Add a final ".0" if it's a number. But not
424 if (isdigit((int)buf
[0])
425 || ((buf
[0] == '-' || buf
[0] == '+')
426 && isdigit((int)buf
[1]))) {
435 int Jim_StringToDouble(const char *str
, double *doublePtr
)
439 *doublePtr
= strtod(str
, &endptr
);
440 if (str
[0] == '\0' || endptr
[0] != '\0' || (str
== endptr
) )
445 static jim_wide
JimPowWide(jim_wide b
, jim_wide e
)
448 if ((b
==0 && e
!=0) || (e
<0)) return 0;
449 for(i
=0; i
<e
; i
++) {res
*= b
;}
453 /* -----------------------------------------------------------------------------
455 * ---------------------------------------------------------------------------*/
457 /* Note that 'interp' may be NULL if not available in the
458 * context of the panic. It's only useful to get the error
459 * file descriptor, it will default to stderr otherwise. */
460 void Jim_Panic(Jim_Interp
*interp
, const char *fmt
, ...)
466 * Send it here first.. Assuming STDIO still works
468 fprintf(stderr
, JIM_NL
"JIM INTERPRETER PANIC: ");
469 vfprintf(stderr
, fmt
, ap
);
470 fprintf(stderr
, JIM_NL JIM_NL
);
473 #ifdef HAVE_BACKTRACE
479 size
= backtrace(array
, 40);
480 strings
= backtrace_symbols(array
, size
);
481 for (i
= 0; i
< size
; i
++)
482 fprintf(fp
,"[backtrace] %s" JIM_NL
, strings
[i
]);
483 fprintf(fp
,"[backtrace] Include the above lines and the output" JIM_NL
);
484 fprintf(fp
,"[backtrace] of 'nm <executable>' in the bug report." JIM_NL
);
488 /* This may actually crash... we do it last */
489 if( interp
&& interp
->cookie_stderr
){
490 Jim_fprintf( interp
, interp
->cookie_stderr
, JIM_NL
"JIM INTERPRETER PANIC: ");
491 Jim_vfprintf( interp
, interp
->cookie_stderr
, fmt
, ap
);
492 Jim_fprintf( interp
, interp
->cookie_stderr
, JIM_NL JIM_NL
);
497 /* -----------------------------------------------------------------------------
499 * ---------------------------------------------------------------------------*/
501 /* Macro used for memory debugging.
502 * In order for they to work you have to rename Jim_Alloc into _Jim_Alloc
503 * and similary for Jim_Realloc and Jim_Free */
505 #define Jim_Alloc(s) (printf("%s %d: Jim_Alloc(%d)\n",__FILE__,__LINE__,s),_Jim_Alloc(s))
506 #define Jim_Free(p) (printf("%s %d: Jim_Free(%p)\n",__FILE__,__LINE__,p),_Jim_Free(p))
507 #define Jim_Realloc(p,s) (printf("%s %d: Jim_Realloc(%p,%d)\n",__FILE__,__LINE__,p,s),_Jim_Realloc(p,s))
510 void *Jim_Alloc(int size
)
512 /* We allocate zero length arrayes, etc. to use a single orthogonal codepath */
515 void *p
= malloc(size
);
517 Jim_Panic(NULL
,"malloc: Out of memory");
521 void Jim_Free(void *ptr
) {
525 void *Jim_Realloc(void *ptr
, int size
)
527 /* We allocate zero length arrayes, etc. to use a single orthogonal codepath */
530 void *p
= realloc(ptr
, size
);
532 Jim_Panic(NULL
,"realloc: Out of memory");
536 char *Jim_StrDup(const char *s
)
539 char *copy
= Jim_Alloc(l
+1);
541 memcpy(copy
, s
, l
+1);
545 char *Jim_StrDupLen(const char *s
, int l
)
547 char *copy
= Jim_Alloc(l
+1);
549 memcpy(copy
, s
, l
+1);
550 copy
[l
] = 0; /* Just to be sure, original could be substring */
554 /* -----------------------------------------------------------------------------
555 * Time related functions
556 * ---------------------------------------------------------------------------*/
557 /* Returns microseconds of CPU used since start. */
558 static jim_wide
JimClock(void)
560 #if (defined WIN32) && !(defined JIM_ANSIC)
562 QueryPerformanceFrequency(&f
);
563 QueryPerformanceCounter(&t
);
564 return (long)((t
.QuadPart
* 1000000) / f
.QuadPart
);
566 clock_t clocks
= clock();
568 return (long)(clocks
*(1000000/CLOCKS_PER_SEC
));
572 /* -----------------------------------------------------------------------------
574 * ---------------------------------------------------------------------------*/
576 /* -------------------------- private prototypes ---------------------------- */
577 static int JimExpandHashTableIfNeeded(Jim_HashTable
*ht
);
578 static unsigned int JimHashTableNextPower(unsigned int size
);
579 static int JimInsertHashEntry(Jim_HashTable
*ht
, const void *key
);
581 /* -------------------------- hash functions -------------------------------- */
583 /* Thomas Wang's 32 bit Mix Function */
584 unsigned int Jim_IntHashFunction(unsigned int key
)
595 /* Identity hash function for integer keys */
596 unsigned int Jim_IdentityHashFunction(unsigned int key
)
601 /* Generic hash function (we are using to multiply by 9 and add the byte
603 unsigned int Jim_GenHashFunction(const unsigned char *buf
, int len
)
611 /* ----------------------------- API implementation ------------------------- */
612 /* reset an hashtable already initialized with ht_init().
613 * NOTE: This function should only called by ht_destroy(). */
614 static void JimResetHashTable(Jim_HashTable
*ht
)
623 /* Initialize the hash table */
624 int Jim_InitHashTable(Jim_HashTable
*ht
, Jim_HashTableType
*type
,
627 JimResetHashTable(ht
);
629 ht
->privdata
= privDataPtr
;
633 /* Resize the table to the minimal size that contains all the elements,
634 * but with the invariant of a USER/BUCKETS ration near to <= 1 */
635 int Jim_ResizeHashTable(Jim_HashTable
*ht
)
637 int minimal
= ht
->used
;
639 if (minimal
< JIM_HT_INITIAL_SIZE
)
640 minimal
= JIM_HT_INITIAL_SIZE
;
641 return Jim_ExpandHashTable(ht
, minimal
);
644 /* Expand or create the hashtable */
645 int Jim_ExpandHashTable(Jim_HashTable
*ht
, unsigned int size
)
647 Jim_HashTable n
; /* the new hashtable */
648 unsigned int realsize
= JimHashTableNextPower(size
), i
;
650 /* the size is invalid if it is smaller than the number of
651 * elements already inside the hashtable */
652 if (ht
->used
>= size
)
655 Jim_InitHashTable(&n
, ht
->type
, ht
->privdata
);
657 n
.sizemask
= realsize
-1;
658 n
.table
= Jim_Alloc(realsize
*sizeof(Jim_HashEntry
*));
660 /* Initialize all the pointers to NULL */
661 memset(n
.table
, 0, realsize
*sizeof(Jim_HashEntry
*));
663 /* Copy all the elements from the old to the new table:
664 * note that if the old hash table is empty ht->size is zero,
665 * so Jim_ExpandHashTable just creates an hash table. */
667 for (i
= 0; i
< ht
->size
&& ht
->used
> 0; i
++) {
668 Jim_HashEntry
*he
, *nextHe
;
670 if (ht
->table
[i
] == NULL
) continue;
672 /* For each hash entry on this slot... */
678 /* Get the new element index */
679 h
= Jim_HashKey(ht
, he
->key
) & n
.sizemask
;
680 he
->next
= n
.table
[h
];
683 /* Pass to the next element */
687 assert(ht
->used
== 0);
690 /* Remap the new hashtable in the old */
695 /* Add an element to the target hash table */
696 int Jim_AddHashEntry(Jim_HashTable
*ht
, const void *key
, void *val
)
699 Jim_HashEntry
*entry
;
701 /* Get the index of the new element, or -1 if
702 * the element already exists. */
703 if ((index
= JimInsertHashEntry(ht
, key
)) == -1)
706 /* Allocates the memory and stores key */
707 entry
= Jim_Alloc(sizeof(*entry
));
708 entry
->next
= ht
->table
[index
];
709 ht
->table
[index
] = entry
;
711 /* Set the hash entry fields. */
712 Jim_SetHashKey(ht
, entry
, key
);
713 Jim_SetHashVal(ht
, entry
, val
);
718 /* Add an element, discarding the old if the key already exists */
719 int Jim_ReplaceHashEntry(Jim_HashTable
*ht
, const void *key
, void *val
)
721 Jim_HashEntry
*entry
;
723 /* Try to add the element. If the key
724 * does not exists Jim_AddHashEntry will suceed. */
725 if (Jim_AddHashEntry(ht
, key
, val
) == JIM_OK
)
727 /* It already exists, get the entry */
728 entry
= Jim_FindHashEntry(ht
, key
);
729 /* Free the old value and set the new one */
730 Jim_FreeEntryVal(ht
, entry
);
731 Jim_SetHashVal(ht
, entry
, val
);
735 /* Search and remove an element */
736 int Jim_DeleteHashEntry(Jim_HashTable
*ht
, const void *key
)
739 Jim_HashEntry
*he
, *prevHe
;
743 h
= Jim_HashKey(ht
, key
) & ht
->sizemask
;
748 if (Jim_CompareHashKeys(ht
, key
, he
->key
)) {
749 /* Unlink the element from the list */
751 prevHe
->next
= he
->next
;
753 ht
->table
[h
] = he
->next
;
754 Jim_FreeEntryKey(ht
, he
);
755 Jim_FreeEntryVal(ht
, he
);
763 return JIM_ERR
; /* not found */
766 /* Destroy an entire hash table */
767 int Jim_FreeHashTable(Jim_HashTable
*ht
)
771 /* Free all the elements */
772 for (i
= 0; i
< ht
->size
&& ht
->used
> 0; i
++) {
773 Jim_HashEntry
*he
, *nextHe
;
775 if ((he
= ht
->table
[i
]) == NULL
) continue;
778 Jim_FreeEntryKey(ht
, he
);
779 Jim_FreeEntryVal(ht
, he
);
785 /* Free the table and the allocated cache structure */
787 /* Re-initialize the table */
788 JimResetHashTable(ht
);
789 return JIM_OK
; /* never fails */
792 Jim_HashEntry
*Jim_FindHashEntry(Jim_HashTable
*ht
, const void *key
)
797 if (ht
->size
== 0) return NULL
;
798 h
= Jim_HashKey(ht
, key
) & ht
->sizemask
;
801 if (Jim_CompareHashKeys(ht
, key
, he
->key
))
808 Jim_HashTableIterator
*Jim_GetHashTableIterator(Jim_HashTable
*ht
)
810 Jim_HashTableIterator
*iter
= Jim_Alloc(sizeof(*iter
));
815 iter
->nextEntry
= NULL
;
819 Jim_HashEntry
*Jim_NextHashEntry(Jim_HashTableIterator
*iter
)
822 if (iter
->entry
== NULL
) {
825 (signed)iter
->ht
->size
) break;
826 iter
->entry
= iter
->ht
->table
[iter
->index
];
828 iter
->entry
= iter
->nextEntry
;
831 /* We need to save the 'next' here, the iterator user
832 * may delete the entry we are returning. */
833 iter
->nextEntry
= iter
->entry
->next
;
840 /* ------------------------- private functions ------------------------------ */
842 /* Expand the hash table if needed */
843 static int JimExpandHashTableIfNeeded(Jim_HashTable
*ht
)
845 /* If the hash table is empty expand it to the intial size,
846 * if the table is "full" dobule its size. */
848 return Jim_ExpandHashTable(ht
, JIM_HT_INITIAL_SIZE
);
849 if (ht
->size
== ht
->used
)
850 return Jim_ExpandHashTable(ht
, ht
->size
*2);
854 /* Our hash table capability is a power of two */
855 static unsigned int JimHashTableNextPower(unsigned int size
)
857 unsigned int i
= JIM_HT_INITIAL_SIZE
;
859 if (size
>= 2147483648U)
868 /* Returns the index of a free slot that can be populated with
869 * an hash entry for the given 'key'.
870 * If the key already exists, -1 is returned. */
871 static int JimInsertHashEntry(Jim_HashTable
*ht
, const void *key
)
876 /* Expand the hashtable if needed */
877 if (JimExpandHashTableIfNeeded(ht
) == JIM_ERR
)
879 /* Compute the key hash value */
880 h
= Jim_HashKey(ht
, key
) & ht
->sizemask
;
881 /* Search if this slot does not already contain the given key */
884 if (Jim_CompareHashKeys(ht
, key
, he
->key
))
891 /* ----------------------- StringCopy Hash Table Type ------------------------*/
893 static unsigned int JimStringCopyHTHashFunction(const void *key
)
895 return Jim_GenHashFunction(key
, strlen(key
));
898 static const void *JimStringCopyHTKeyDup(void *privdata
, const void *key
)
900 int len
= strlen(key
);
901 char *copy
= Jim_Alloc(len
+1);
902 JIM_NOTUSED(privdata
);
904 memcpy(copy
, key
, len
);
909 static void *JimStringKeyValCopyHTValDup(void *privdata
, const void *val
)
911 int len
= strlen(val
);
912 char *copy
= Jim_Alloc(len
+1);
913 JIM_NOTUSED(privdata
);
915 memcpy(copy
, val
, len
);
920 static int JimStringCopyHTKeyCompare(void *privdata
, const void *key1
,
923 JIM_NOTUSED(privdata
);
925 return strcmp(key1
, key2
) == 0;
928 static void JimStringCopyHTKeyDestructor(void *privdata
, const void *key
)
930 JIM_NOTUSED(privdata
);
932 Jim_Free((void*)key
); /* ATTENTION: const cast */
935 static void JimStringKeyValCopyHTValDestructor(void *privdata
, void *val
)
937 JIM_NOTUSED(privdata
);
939 Jim_Free((void*)val
); /* ATTENTION: const cast */
942 static Jim_HashTableType JimStringCopyHashTableType
= {
943 JimStringCopyHTHashFunction
, /* hash function */
944 JimStringCopyHTKeyDup
, /* key dup */
946 JimStringCopyHTKeyCompare
, /* key compare */
947 JimStringCopyHTKeyDestructor
, /* key destructor */
948 NULL
/* val destructor */
951 /* This is like StringCopy but does not auto-duplicate the key.
952 * It's used for intepreter's shared strings. */
953 static Jim_HashTableType JimSharedStringsHashTableType
= {
954 JimStringCopyHTHashFunction
, /* hash function */
957 JimStringCopyHTKeyCompare
, /* key compare */
958 JimStringCopyHTKeyDestructor
, /* key destructor */
959 NULL
/* val destructor */
962 /* This is like StringCopy but also automatically handle dynamic
963 * allocated C strings as values. */
964 static Jim_HashTableType JimStringKeyValCopyHashTableType
= {
965 JimStringCopyHTHashFunction
, /* hash function */
966 JimStringCopyHTKeyDup
, /* key dup */
967 JimStringKeyValCopyHTValDup
, /* val dup */
968 JimStringCopyHTKeyCompare
, /* key compare */
969 JimStringCopyHTKeyDestructor
, /* key destructor */
970 JimStringKeyValCopyHTValDestructor
, /* val destructor */
973 typedef struct AssocDataValue
{
974 Jim_InterpDeleteProc
*delProc
;
978 static void JimAssocDataHashTableValueDestructor(void *privdata
, void *data
)
980 AssocDataValue
*assocPtr
= (AssocDataValue
*)data
;
981 if (assocPtr
->delProc
!= NULL
)
982 assocPtr
->delProc((Jim_Interp
*)privdata
, assocPtr
->data
);
986 static Jim_HashTableType JimAssocDataHashTableType
= {
987 JimStringCopyHTHashFunction
, /* hash function */
988 JimStringCopyHTKeyDup
, /* key dup */
990 JimStringCopyHTKeyCompare
, /* key compare */
991 JimStringCopyHTKeyDestructor
, /* key destructor */
992 JimAssocDataHashTableValueDestructor
/* val destructor */
995 /* -----------------------------------------------------------------------------
996 * Stack - This is a simple generic stack implementation. It is used for
997 * example in the 'expr' expression compiler.
998 * ---------------------------------------------------------------------------*/
999 void Jim_InitStack(Jim_Stack
*stack
)
1003 stack
->vector
= NULL
;
1006 void Jim_FreeStack(Jim_Stack
*stack
)
1008 Jim_Free(stack
->vector
);
1011 int Jim_StackLen(Jim_Stack
*stack
)
1016 void Jim_StackPush(Jim_Stack
*stack
, void *element
) {
1017 int neededLen
= stack
->len
+1;
1018 if (neededLen
> stack
->maxlen
) {
1019 stack
->maxlen
= neededLen
*2;
1020 stack
->vector
= Jim_Realloc(stack
->vector
, sizeof(void*)*stack
->maxlen
);
1022 stack
->vector
[stack
->len
] = element
;
1026 void *Jim_StackPop(Jim_Stack
*stack
)
1028 if (stack
->len
== 0) return NULL
;
1030 return stack
->vector
[stack
->len
];
1033 void *Jim_StackPeek(Jim_Stack
*stack
)
1035 if (stack
->len
== 0) return NULL
;
1036 return stack
->vector
[stack
->len
-1];
1039 void Jim_FreeStackElements(Jim_Stack
*stack
, void (*freeFunc
)(void *ptr
))
1043 for (i
= 0; i
< stack
->len
; i
++)
1044 freeFunc(stack
->vector
[i
]);
1047 /* -----------------------------------------------------------------------------
1049 * ---------------------------------------------------------------------------*/
1052 #define JIM_TT_NONE -1 /* No token returned */
1053 #define JIM_TT_STR 0 /* simple string */
1054 #define JIM_TT_ESC 1 /* string that needs escape chars conversion */
1055 #define JIM_TT_VAR 2 /* var substitution */
1056 #define JIM_TT_DICTSUGAR 3 /* Syntax sugar for [dict get], $foo(bar) */
1057 #define JIM_TT_CMD 4 /* command substitution */
1058 #define JIM_TT_SEP 5 /* word separator */
1059 #define JIM_TT_EOL 6 /* line separator */
1061 /* Additional token types needed for expressions */
1062 #define JIM_TT_SUBEXPR_START 7
1063 #define JIM_TT_SUBEXPR_END 8
1064 #define JIM_TT_EXPR_NUMBER 9
1065 #define JIM_TT_EXPR_OPERATOR 10
1068 #define JIM_PS_DEF 0 /* Default state */
1069 #define JIM_PS_QUOTE 1 /* Inside "" */
1071 /* Parser context structure. The same context is used both to parse
1072 * Tcl scripts and lists. */
1073 struct JimParserCtx
{
1074 const char *prg
; /* Program text */
1075 const char *p
; /* Pointer to the point of the program we are parsing */
1076 int len
; /* Left length of 'prg' */
1077 int linenr
; /* Current line number */
1079 const char *tend
; /* Returned token is at tstart-tend in 'prg'. */
1080 int tline
; /* Line number of the returned token */
1081 int tt
; /* Token type */
1082 int eof
; /* Non zero if EOF condition is true. */
1083 int state
; /* Parser state */
1084 int comment
; /* Non zero if the next chars may be a comment. */
1087 #define JimParserEof(c) ((c)->eof)
1088 #define JimParserTstart(c) ((c)->tstart)
1089 #define JimParserTend(c) ((c)->tend)
1090 #define JimParserTtype(c) ((c)->tt)
1091 #define JimParserTline(c) ((c)->tline)
1093 static int JimParseScript(struct JimParserCtx
*pc
);
1094 static int JimParseSep(struct JimParserCtx
*pc
);
1095 static int JimParseEol(struct JimParserCtx
*pc
);
1096 static int JimParseCmd(struct JimParserCtx
*pc
);
1097 static int JimParseVar(struct JimParserCtx
*pc
);
1098 static int JimParseBrace(struct JimParserCtx
*pc
);
1099 static int JimParseStr(struct JimParserCtx
*pc
);
1100 static int JimParseComment(struct JimParserCtx
*pc
);
1101 static char *JimParserGetToken(struct JimParserCtx
*pc
,
1102 int *lenPtr
, int *typePtr
, int *linePtr
);
1104 /* Initialize a parser context.
1105 * 'prg' is a pointer to the program text, linenr is the line
1106 * number of the first line contained in the program. */
1107 void JimParserInit(struct JimParserCtx
*pc
, const char *prg
,
1108 int len
, int linenr
)
1116 pc
->tt
= JIM_TT_NONE
;
1118 pc
->state
= JIM_PS_DEF
;
1119 pc
->linenr
= linenr
;
1123 int JimParseScript(struct JimParserCtx
*pc
)
1125 while(1) { /* the while is used to reiterate with continue if needed */
1129 pc
->tline
= pc
->linenr
;
1130 pc
->tt
= JIM_TT_EOL
;
1136 if (*(pc
->p
+1) == '\n')
1137 return JimParseSep(pc
);
1140 return JimParseStr(pc
);
1146 if (pc
->state
== JIM_PS_DEF
)
1147 return JimParseSep(pc
);
1150 return JimParseStr(pc
);
1156 if (pc
->state
== JIM_PS_DEF
)
1157 return JimParseEol(pc
);
1159 return JimParseStr(pc
);
1163 return JimParseCmd(pc
);
1167 if (JimParseVar(pc
) == JIM_ERR
) {
1168 pc
->tstart
= pc
->tend
= pc
->p
++; pc
->len
--;
1169 pc
->tline
= pc
->linenr
;
1170 pc
->tt
= JIM_TT_STR
;
1177 JimParseComment(pc
);
1180 return JimParseStr(pc
);
1184 return JimParseStr(pc
);
1191 int JimParseSep(struct JimParserCtx
*pc
)
1194 pc
->tline
= pc
->linenr
;
1195 while (*pc
->p
== ' ' || *pc
->p
== '\t' || *pc
->p
== '\r' ||
1196 (*pc
->p
== '\\' && *(pc
->p
+1) == '\n')) {
1197 if (*pc
->p
== '\\') {
1204 pc
->tt
= JIM_TT_SEP
;
1208 int JimParseEol(struct JimParserCtx
*pc
)
1211 pc
->tline
= pc
->linenr
;
1212 while (*pc
->p
== ' ' || *pc
->p
== '\n' ||
1213 *pc
->p
== '\t' || *pc
->p
== '\r' || *pc
->p
== ';') {
1219 pc
->tt
= JIM_TT_EOL
;
1223 /* Todo. Don't stop if ']' appears inside {} or quoted.
1224 * Also should handle the case of puts [string length "]"] */
1225 int JimParseCmd(struct JimParserCtx
*pc
)
1230 pc
->tstart
= ++pc
->p
; pc
->len
--;
1231 pc
->tline
= pc
->linenr
;
1235 } else if (*pc
->p
== '[' && blevel
== 0) {
1237 } else if (*pc
->p
== ']' && blevel
== 0) {
1240 } else if (*pc
->p
== '\\') {
1242 } else if (*pc
->p
== '{') {
1244 } else if (*pc
->p
== '}') {
1247 } else if (*pc
->p
== '\n')
1252 pc
->tt
= JIM_TT_CMD
;
1253 if (*pc
->p
== ']') {
1259 int JimParseVar(struct JimParserCtx
*pc
)
1261 int brace
= 0, stop
= 0, ttype
= JIM_TT_VAR
;
1263 pc
->tstart
= ++pc
->p
; pc
->len
--; /* skip the $ */
1264 pc
->tline
= pc
->linenr
;
1265 if (*pc
->p
== '{') {
1266 pc
->tstart
= ++pc
->p
; pc
->len
--;
1271 if (*pc
->p
== '}' || pc
->len
== 0) {
1276 else if (*pc
->p
== '\n')
1286 if (!((*pc
->p
>= 'a' && *pc
->p
<= 'z') ||
1287 (*pc
->p
>= 'A' && *pc
->p
<= 'Z') ||
1288 (*pc
->p
>= '0' && *pc
->p
<= '9') || *pc
->p
== '_'))
1294 /* Parse [dict get] syntax sugar. */
1295 if (*pc
->p
== '(') {
1296 while (*pc
->p
!= ')' && pc
->len
) {
1298 if (*pc
->p
== '\\' && pc
->len
>= 2) {
1299 pc
->p
+= 2; pc
->len
-= 2;
1302 if (*pc
->p
!= '\0') {
1305 ttype
= JIM_TT_DICTSUGAR
;
1309 /* Check if we parsed just the '$' character.
1310 * That's not a variable so an error is returned
1311 * to tell the state machine to consider this '$' just
1313 if (pc
->tstart
== pc
->p
) {
1321 int JimParseBrace(struct JimParserCtx
*pc
)
1325 pc
->tstart
= ++pc
->p
; pc
->len
--;
1326 pc
->tline
= pc
->linenr
;
1328 if (*pc
->p
== '\\' && pc
->len
>= 2) {
1332 } else if (*pc
->p
== '{') {
1334 } else if (pc
->len
== 0 || *pc
->p
== '}') {
1336 if (pc
->len
== 0 || level
== 0) {
1341 pc
->tt
= JIM_TT_STR
;
1344 } else if (*pc
->p
== '\n') {
1349 return JIM_OK
; /* unreached */
1352 int JimParseStr(struct JimParserCtx
*pc
)
1354 int newword
= (pc
->tt
== JIM_TT_SEP
|| pc
->tt
== JIM_TT_EOL
||
1355 pc
->tt
== JIM_TT_NONE
|| pc
->tt
== JIM_TT_STR
);
1356 if (newword
&& *pc
->p
== '{') {
1357 return JimParseBrace(pc
);
1358 } else if (newword
&& *pc
->p
== '"') {
1359 pc
->state
= JIM_PS_QUOTE
;
1363 pc
->tline
= pc
->linenr
;
1367 pc
->tt
= JIM_TT_ESC
;
1372 if (pc
->state
== JIM_PS_DEF
&&
1373 *(pc
->p
+1) == '\n') {
1375 pc
->tt
= JIM_TT_ESC
;
1385 pc
->tt
= JIM_TT_ESC
;
1392 if (pc
->state
== JIM_PS_DEF
) {
1394 pc
->tt
= JIM_TT_ESC
;
1396 } else if (*pc
->p
== '\n') {
1401 if (pc
->state
== JIM_PS_QUOTE
) {
1403 pc
->tt
= JIM_TT_ESC
;
1405 pc
->state
= JIM_PS_DEF
;
1412 return JIM_OK
; /* unreached */
1415 int JimParseComment(struct JimParserCtx
*pc
)
1418 if (*pc
->p
== '\n') {
1420 if (*(pc
->p
-1) != '\\') {
1430 /* xdigitval and odigitval are helper functions for JimParserGetToken() */
1431 static int xdigitval(int c
)
1433 if (c
>= '0' && c
<= '9') return c
-'0';
1434 if (c
>= 'a' && c
<= 'f') return c
-'a'+10;
1435 if (c
>= 'A' && c
<= 'F') return c
-'A'+10;
1439 static int odigitval(int c
)
1441 if (c
>= '0' && c
<= '7') return c
-'0';
1445 /* Perform Tcl escape substitution of 's', storing the result
1446 * string into 'dest'. The escaped string is guaranteed to
1447 * be the same length or shorted than the source string.
1448 * Slen is the length of the string at 's', if it's -1 the string
1449 * length will be calculated by the function.
1451 * The function returns the length of the resulting string. */
1452 static int JimEscape(char *dest
, const char *s
, int slen
)
1460 for (i
= 0; i
< slen
; i
++) {
1464 case 'a': *p
++ = 0x7; i
++; break;
1465 case 'b': *p
++ = 0x8; i
++; break;
1466 case 'f': *p
++ = 0xc; i
++; break;
1467 case 'n': *p
++ = 0xa; i
++; break;
1468 case 'r': *p
++ = 0xd; i
++; break;
1469 case 't': *p
++ = 0x9; i
++; break;
1470 case 'v': *p
++ = 0xb; i
++; break;
1471 case '\0': *p
++ = '\\'; i
++; break;
1472 case '\n': *p
++ = ' '; i
++; break;
1474 if (s
[i
+1] == 'x') {
1476 int c
= xdigitval(s
[i
+2]);
1483 c
= xdigitval(s
[i
+3]);
1493 } else if (s
[i
+1] >= '0' && s
[i
+1] <= '7')
1496 int c
= odigitval(s
[i
+1]);
1498 c
= odigitval(s
[i
+2]);
1505 c
= odigitval(s
[i
+3]);
1531 /* Returns a dynamically allocated copy of the current token in the
1532 * parser context. The function perform conversion of escapes if
1533 * the token is of type JIM_TT_ESC.
1535 * Note that after the conversion, tokens that are grouped with
1536 * braces in the source code, are always recognizable from the
1537 * identical string obtained in a different way from the type.
1539 * For exmple the string:
1543 * will return as first token "expand", of type JIM_TT_STR
1549 * will return as first token "expand", of type JIM_TT_ESC
1551 char *JimParserGetToken(struct JimParserCtx
*pc
,
1552 int *lenPtr
, int *typePtr
, int *linePtr
)
1554 const char *start
, *end
;
1558 start
= JimParserTstart(pc
);
1559 end
= JimParserTend(pc
);
1561 if (lenPtr
) *lenPtr
= 0;
1562 if (typePtr
) *typePtr
= JimParserTtype(pc
);
1563 if (linePtr
) *linePtr
= JimParserTline(pc
);
1564 token
= Jim_Alloc(1);
1568 len
= (end
-start
)+1;
1569 token
= Jim_Alloc(len
+1);
1570 if (JimParserTtype(pc
) != JIM_TT_ESC
) {
1571 /* No escape conversion needed? Just copy it. */
1572 memcpy(token
, start
, len
);
1575 /* Else convert the escape chars. */
1576 len
= JimEscape(token
, start
, len
);
1578 if (lenPtr
) *lenPtr
= len
;
1579 if (typePtr
) *typePtr
= JimParserTtype(pc
);
1580 if (linePtr
) *linePtr
= JimParserTline(pc
);
1584 /* The following functin is not really part of the parsing engine of Jim,
1585 * but it somewhat related. Given an string and its length, it tries
1586 * to guess if the script is complete or there are instead " " or { }
1587 * open and not completed. This is useful for interactive shells
1588 * implementation and for [info complete].
1590 * If 'stateCharPtr' != NULL, the function stores ' ' on complete script,
1591 * '{' on scripts incomplete missing one or more '}' to be balanced.
1592 * '"' on scripts incomplete missing a '"' char.
1594 * If the script is complete, 1 is returned, otherwise 0. */
1595 int Jim_ScriptIsComplete(const char *s
, int len
, char *stateCharPtr
)
1609 } else if (state
== '"') {
1616 } else if (state
== ' ') {
1633 *stateCharPtr
= state
;
1634 return state
== ' ';
1637 /* -----------------------------------------------------------------------------
1639 * ---------------------------------------------------------------------------*/
1640 static int JimParseListSep(struct JimParserCtx
*pc
);
1641 static int JimParseListStr(struct JimParserCtx
*pc
);
1643 int JimParseList(struct JimParserCtx
*pc
)
1646 pc
->tstart
= pc
->tend
= pc
->p
;
1647 pc
->tline
= pc
->linenr
;
1648 pc
->tt
= JIM_TT_EOL
;
1657 if (pc
->state
== JIM_PS_DEF
)
1658 return JimParseListSep(pc
);
1660 return JimParseListStr(pc
);
1663 return JimParseListStr(pc
);
1669 int JimParseListSep(struct JimParserCtx
*pc
)
1672 pc
->tline
= pc
->linenr
;
1673 while (*pc
->p
== ' ' || *pc
->p
== '\t' || *pc
->p
== '\r' || *pc
->p
== '\n')
1678 pc
->tt
= JIM_TT_SEP
;
1682 int JimParseListStr(struct JimParserCtx
*pc
)
1684 int newword
= (pc
->tt
== JIM_TT_SEP
|| pc
->tt
== JIM_TT_EOL
||
1685 pc
->tt
== JIM_TT_NONE
);
1686 if (newword
&& *pc
->p
== '{') {
1687 return JimParseBrace(pc
);
1688 } else if (newword
&& *pc
->p
== '"') {
1689 pc
->state
= JIM_PS_QUOTE
;
1693 pc
->tline
= pc
->linenr
;
1697 pc
->tt
= JIM_TT_ESC
;
1708 if (pc
->state
== JIM_PS_DEF
) {
1710 pc
->tt
= JIM_TT_ESC
;
1712 } else if (*pc
->p
== '\n') {
1717 if (pc
->state
== JIM_PS_QUOTE
) {
1719 pc
->tt
= JIM_TT_ESC
;
1721 pc
->state
= JIM_PS_DEF
;
1728 return JIM_OK
; /* unreached */
1731 /* -----------------------------------------------------------------------------
1732 * Jim_Obj related functions
1733 * ---------------------------------------------------------------------------*/
1735 /* Return a new initialized object. */
1736 Jim_Obj
*Jim_NewObj(Jim_Interp
*interp
)
1740 /* -- Check if there are objects in the free list -- */
1741 if (interp
->freeList
!= NULL
) {
1742 /* -- Unlink the object from the free list -- */
1743 objPtr
= interp
->freeList
;
1744 interp
->freeList
= objPtr
->nextObjPtr
;
1746 /* -- No ready to use objects: allocate a new one -- */
1747 objPtr
= Jim_Alloc(sizeof(*objPtr
));
1750 /* Object is returned with refCount of 0. Every
1751 * kind of GC implemented should take care to don't try
1752 * to scan objects with refCount == 0. */
1753 objPtr
->refCount
= 0;
1754 /* All the other fields are left not initialized to save time.
1755 * The caller will probably want set they to the right
1758 /* -- Put the object into the live list -- */
1759 objPtr
->prevObjPtr
= NULL
;
1760 objPtr
->nextObjPtr
= interp
->liveList
;
1761 if (interp
->liveList
)
1762 interp
->liveList
->prevObjPtr
= objPtr
;
1763 interp
->liveList
= objPtr
;
1768 /* Free an object. Actually objects are never freed, but
1769 * just moved to the free objects list, where they will be
1770 * reused by Jim_NewObj(). */
1771 void Jim_FreeObj(Jim_Interp
*interp
, Jim_Obj
*objPtr
)
1773 /* Check if the object was already freed, panic. */
1774 if (objPtr
->refCount
!= 0) {
1775 Jim_Panic(interp
,"!!!Object %p freed with bad refcount %d", objPtr
,
1778 /* Free the internal representation */
1779 Jim_FreeIntRep(interp
, objPtr
);
1780 /* Free the string representation */
1781 if (objPtr
->bytes
!= NULL
) {
1782 if (objPtr
->bytes
!= JimEmptyStringRep
)
1783 Jim_Free(objPtr
->bytes
);
1785 /* Unlink the object from the live objects list */
1786 if (objPtr
->prevObjPtr
)
1787 objPtr
->prevObjPtr
->nextObjPtr
= objPtr
->nextObjPtr
;
1788 if (objPtr
->nextObjPtr
)
1789 objPtr
->nextObjPtr
->prevObjPtr
= objPtr
->prevObjPtr
;
1790 if (interp
->liveList
== objPtr
)
1791 interp
->liveList
= objPtr
->nextObjPtr
;
1792 /* Link the object into the free objects list */
1793 objPtr
->prevObjPtr
= NULL
;
1794 objPtr
->nextObjPtr
= interp
->freeList
;
1795 if (interp
->freeList
)
1796 interp
->freeList
->prevObjPtr
= objPtr
;
1797 interp
->freeList
= objPtr
;
1798 objPtr
->refCount
= -1;
1801 /* Invalidate the string representation of an object. */
1802 void Jim_InvalidateStringRep(Jim_Obj
*objPtr
)
1804 if (objPtr
->bytes
!= NULL
) {
1805 if (objPtr
->bytes
!= JimEmptyStringRep
)
1806 Jim_Free(objPtr
->bytes
);
1808 objPtr
->bytes
= NULL
;
1811 #define Jim_SetStringRep(o, b, l) \
1812 do { (o)->bytes = b; (o)->length = l; } while (0)
1814 /* Set the initial string representation for an object.
1815 * Does not try to free an old one. */
1816 void Jim_InitStringRep(Jim_Obj
*objPtr
, const char *bytes
, int length
)
1819 objPtr
->bytes
= JimEmptyStringRep
;
1822 objPtr
->bytes
= Jim_Alloc(length
+1);
1823 objPtr
->length
= length
;
1824 memcpy(objPtr
->bytes
, bytes
, length
);
1825 objPtr
->bytes
[length
] = '\0';
1829 /* Duplicate an object. The returned object has refcount = 0. */
1830 Jim_Obj
*Jim_DuplicateObj(Jim_Interp
*interp
, Jim_Obj
*objPtr
)
1834 dupPtr
= Jim_NewObj(interp
);
1835 if (objPtr
->bytes
== NULL
) {
1836 /* Object does not have a valid string representation. */
1837 dupPtr
->bytes
= NULL
;
1839 Jim_InitStringRep(dupPtr
, objPtr
->bytes
, objPtr
->length
);
1841 if (objPtr
->typePtr
!= NULL
) {
1842 if (objPtr
->typePtr
->dupIntRepProc
== NULL
) {
1843 dupPtr
->internalRep
= objPtr
->internalRep
;
1845 objPtr
->typePtr
->dupIntRepProc(interp
, objPtr
, dupPtr
);
1847 dupPtr
->typePtr
= objPtr
->typePtr
;
1849 dupPtr
->typePtr
= NULL
;
1854 /* Return the string representation for objPtr. If the object
1855 * string representation is invalid, calls the method to create
1856 * a new one starting from the internal representation of the object. */
1857 const char *Jim_GetString(Jim_Obj
*objPtr
, int *lenPtr
)
1859 if (objPtr
->bytes
== NULL
) {
1860 /* Invalid string repr. Generate it. */
1861 if (objPtr
->typePtr
->updateStringProc
== NULL
) {
1862 Jim_Panic(NULL
,"UpdataStringProc called against '%s' type.",
1863 objPtr
->typePtr
->name
);
1865 objPtr
->typePtr
->updateStringProc(objPtr
);
1868 *lenPtr
= objPtr
->length
;
1869 return objPtr
->bytes
;
1872 /* Just returns the length of the object's string rep */
1873 int Jim_Length(Jim_Obj
*objPtr
)
1877 Jim_GetString(objPtr
, &len
);
1881 /* -----------------------------------------------------------------------------
1883 * ---------------------------------------------------------------------------*/
1884 static void DupStringInternalRep(Jim_Interp
*interp
, Jim_Obj
*srcPtr
, Jim_Obj
*dupPtr
);
1885 static int SetStringFromAny(Jim_Interp
*interp
, struct Jim_Obj
*objPtr
);
1887 static Jim_ObjType stringObjType
= {
1890 DupStringInternalRep
,
1892 JIM_TYPE_REFERENCES
,
1895 void DupStringInternalRep(Jim_Interp
*interp
, Jim_Obj
*srcPtr
, Jim_Obj
*dupPtr
)
1897 JIM_NOTUSED(interp
);
1899 /* This is a bit subtle: the only caller of this function
1900 * should be Jim_DuplicateObj(), that will copy the
1901 * string representaion. After the copy, the duplicated
1902 * object will not have more room in teh buffer than
1903 * srcPtr->length bytes. So we just set it to length. */
1904 dupPtr
->internalRep
.strValue
.maxLength
= srcPtr
->length
;
1907 int SetStringFromAny(Jim_Interp
*interp
, Jim_Obj
*objPtr
)
1909 /* Get a fresh string representation. */
1910 (void) Jim_GetString(objPtr
, NULL
);
1911 /* Free any other internal representation. */
1912 Jim_FreeIntRep(interp
, objPtr
);
1913 /* Set it as string, i.e. just set the maxLength field. */
1914 objPtr
->typePtr
= &stringObjType
;
1915 objPtr
->internalRep
.strValue
.maxLength
= objPtr
->length
;
1919 Jim_Obj
*Jim_NewStringObj(Jim_Interp
*interp
, const char *s
, int len
)
1921 Jim_Obj
*objPtr
= Jim_NewObj(interp
);
1925 /* Alloc/Set the string rep. */
1927 objPtr
->bytes
= JimEmptyStringRep
;
1930 objPtr
->bytes
= Jim_Alloc(len
+1);
1931 objPtr
->length
= len
;
1932 memcpy(objPtr
->bytes
, s
, len
);
1933 objPtr
->bytes
[len
] = '\0';
1936 /* No typePtr field for the vanilla string object. */
1937 objPtr
->typePtr
= NULL
;
1941 /* This version does not try to duplicate the 's' pointer, but
1942 * use it directly. */
1943 Jim_Obj
*Jim_NewStringObjNoAlloc(Jim_Interp
*interp
, char *s
, int len
)
1945 Jim_Obj
*objPtr
= Jim_NewObj(interp
);
1949 Jim_SetStringRep(objPtr
, s
, len
);
1950 objPtr
->typePtr
= NULL
;
1954 /* Low-level string append. Use it only against objects
1955 * of type "string". */
1956 void StringAppendString(Jim_Obj
*objPtr
, const char *str
, int len
)
1962 needlen
= objPtr
->length
+ len
;
1963 if (objPtr
->internalRep
.strValue
.maxLength
< needlen
||
1964 objPtr
->internalRep
.strValue
.maxLength
== 0) {
1965 if (objPtr
->bytes
== JimEmptyStringRep
) {
1966 objPtr
->bytes
= Jim_Alloc((needlen
*2)+1);
1968 objPtr
->bytes
= Jim_Realloc(objPtr
->bytes
, (needlen
*2)+1);
1970 objPtr
->internalRep
.strValue
.maxLength
= needlen
*2;
1972 memcpy(objPtr
->bytes
+ objPtr
->length
, str
, len
);
1973 objPtr
->bytes
[objPtr
->length
+len
] = '\0';
1974 objPtr
->length
+= len
;
1977 /* Low-level wrapper to append an object. */
1978 void StringAppendObj(Jim_Obj
*objPtr
, Jim_Obj
*appendObjPtr
)
1983 str
= Jim_GetString(appendObjPtr
, &len
);
1984 StringAppendString(objPtr
, str
, len
);
1987 /* Higher level API to append strings to objects. */
1988 void Jim_AppendString(Jim_Interp
*interp
, Jim_Obj
*objPtr
, const char *str
,
1991 if (Jim_IsShared(objPtr
))
1992 Jim_Panic(interp
,"Jim_AppendString called with shared object");
1993 if (objPtr
->typePtr
!= &stringObjType
)
1994 SetStringFromAny(interp
, objPtr
);
1995 StringAppendString(objPtr
, str
, len
);
1998 void Jim_AppendObj(Jim_Interp
*interp
, Jim_Obj
*objPtr
,
1999 Jim_Obj
*appendObjPtr
)
2004 str
= Jim_GetString(appendObjPtr
, &len
);
2005 Jim_AppendString(interp
, objPtr
, str
, len
);
2008 void Jim_AppendStrings(Jim_Interp
*interp
, Jim_Obj
*objPtr
, ...)
2012 if (objPtr
->typePtr
!= &stringObjType
)
2013 SetStringFromAny(interp
, objPtr
);
2014 va_start(ap
, objPtr
);
2016 char *s
= va_arg(ap
, char*);
2018 if (s
== NULL
) break;
2019 Jim_AppendString(interp
, objPtr
, s
, -1);
2024 int Jim_StringEqObj(Jim_Obj
*aObjPtr
, Jim_Obj
*bObjPtr
, int nocase
)
2026 const char *aStr
, *bStr
;
2029 if (aObjPtr
== bObjPtr
) return 1;
2030 aStr
= Jim_GetString(aObjPtr
, &aLen
);
2031 bStr
= Jim_GetString(bObjPtr
, &bLen
);
2032 if (aLen
!= bLen
) return 0;
2034 return memcmp(aStr
, bStr
, aLen
) == 0;
2035 for (i
= 0; i
< aLen
; i
++) {
2036 if (tolower((int)aStr
[i
]) != tolower((int)bStr
[i
]))
2042 int Jim_StringMatchObj(Jim_Obj
*patternObjPtr
, Jim_Obj
*objPtr
,
2045 const char *pattern
, *string
;
2046 int patternLen
, stringLen
;
2048 pattern
= Jim_GetString(patternObjPtr
, &patternLen
);
2049 string
= Jim_GetString(objPtr
, &stringLen
);
2050 return JimStringMatch(pattern
, patternLen
, string
, stringLen
, nocase
);
2053 int Jim_StringCompareObj(Jim_Obj
*firstObjPtr
,
2054 Jim_Obj
*secondObjPtr
, int nocase
)
2056 const char *s1
, *s2
;
2059 s1
= Jim_GetString(firstObjPtr
, &l1
);
2060 s2
= Jim_GetString(secondObjPtr
, &l2
);
2061 return JimStringCompare(s1
, l1
, s2
, l2
, nocase
);
2064 /* Convert a range, as returned by Jim_GetRange(), into
2065 * an absolute index into an object of the specified length.
2066 * This function may return negative values, or values
2067 * bigger or equal to the length of the list if the index
2068 * is out of range. */
2069 static int JimRelToAbsIndex(int len
, int index
)
2076 /* Convert a pair of index as normalize by JimRelToAbsIndex(),
2077 * into a range stored in *firstPtr, *lastPtr, *rangeLenPtr, suitable
2078 * for implementation of commands like [string range] and [lrange].
2080 * The resulting range is guaranteed to address valid elements of
2082 static void JimRelToAbsRange(int len
, int first
, int last
,
2083 int *firstPtr
, int *lastPtr
, int *rangeLenPtr
)
2090 rangeLen
= last
-first
+1;
2097 rangeLen
-= (last
-(len
-1));
2102 if (rangeLen
< 0) rangeLen
= 0;
2106 *rangeLenPtr
= rangeLen
;
2109 Jim_Obj
*Jim_StringRangeObj(Jim_Interp
*interp
,
2110 Jim_Obj
*strObjPtr
, Jim_Obj
*firstObjPtr
, Jim_Obj
*lastObjPtr
)
2116 if (Jim_GetIndex(interp
, firstObjPtr
, &first
) != JIM_OK
||
2117 Jim_GetIndex(interp
, lastObjPtr
, &last
) != JIM_OK
)
2119 str
= Jim_GetString(strObjPtr
, &len
);
2120 first
= JimRelToAbsIndex(len
, first
);
2121 last
= JimRelToAbsIndex(len
, last
);
2122 JimRelToAbsRange(len
, first
, last
, &first
, &last
, &rangeLen
);
2123 return Jim_NewStringObj(interp
, str
+first
, rangeLen
);
2126 static Jim_Obj
*JimStringToLower(Jim_Interp
*interp
, Jim_Obj
*strObjPtr
)
2128 char *buf
= Jim_Alloc(strObjPtr
->length
+1);
2131 memcpy(buf
, strObjPtr
->bytes
, strObjPtr
->length
+1);
2132 for (i
= 0; i
< strObjPtr
->length
; i
++)
2133 buf
[i
] = tolower(buf
[i
]);
2134 return Jim_NewStringObjNoAlloc(interp
, buf
, strObjPtr
->length
);
2137 static Jim_Obj
*JimStringToUpper(Jim_Interp
*interp
, Jim_Obj
*strObjPtr
)
2139 char *buf
= Jim_Alloc(strObjPtr
->length
+1);
2142 memcpy(buf
, strObjPtr
->bytes
, strObjPtr
->length
+1);
2143 for (i
= 0; i
< strObjPtr
->length
; i
++)
2144 buf
[i
] = toupper(buf
[i
]);
2145 return Jim_NewStringObjNoAlloc(interp
, buf
, strObjPtr
->length
);
2148 /* This is the core of the [format] command.
2149 * TODO: Lots of things work - via a hack
2150 * However, no format item can be >= JIM_MAX_FMT
2152 Jim_Obj
*Jim_FormatString(Jim_Interp
*interp
, Jim_Obj
*fmtObjPtr
,
2153 int objc
, Jim_Obj
*const *objv
)
2155 const char *fmt
, *_fmt
;
2160 fmt
= Jim_GetString(fmtObjPtr
, &fmtLen
);
2162 resObjPtr
= Jim_NewStringObj(interp
, "", 0);
2164 const char *p
= fmt
;
2168 /* we cheat and use Sprintf()! */
2169 #define JIM_MAX_FMT 2048
2170 char sprintf_buf
[JIM_MAX_FMT
];
2180 while (*fmt
!= '%' && fmtLen
) {
2183 Jim_AppendString(interp
, resObjPtr
, p
, fmt
-p
);
2186 fmt
++; fmtLen
--; /* skip '%' */
2199 case 'b': /* binary - not all printfs() do this */
2200 case 's': /* string */
2201 case 'i': /* integer */
2202 case 'd': /* decimal */
2204 case 'X': /* CAP hex */
2205 case 'c': /* char */
2206 case 'o': /* octal */
2207 case 'u': /* unsigned */
2208 case 'f': /* float */
2212 case '0': /* zero pad */
2222 case ' ': /* sign space */
2247 while( isdigit(*fmt
) && (fmtLen
> 0) ){
2248 width
= (width
* 10) + (*fmt
- '0');
2253 /* suck up the next item as an integer */
2257 goto not_enough_args
;
2259 if( Jim_GetWide(interp
,objv
[0],&wideValue
)== JIM_ERR
){
2260 Jim_FreeNewObj(interp
, resObjPtr
);
2277 Jim_FreeNewObj(interp
, resObjPtr
);
2278 Jim_SetResultString(interp
,
2279 "not enough arguments for all format specifiers", -1);
2287 * Create the formatter
2288 * cause we cheat and use sprintf()
2298 /* PLUS overrides */
2308 sprintf( cp
, "%d", width
);
2314 /* here we do the work */
2315 /* actually - we make sprintf() do it for us */
2320 /* BUG: we do not handled embeded NULLs */
2321 snprintf( sprintf_buf
, JIM_MAX_FMT
, fmt_str
, Jim_GetString( objv
[0], NULL
));
2326 if (Jim_GetWide(interp
, objv
[0], &wideValue
) == JIM_ERR
) {
2327 Jim_FreeNewObj(interp
, resObjPtr
);
2330 c
= (char) wideValue
;
2331 snprintf( sprintf_buf
, JIM_MAX_FMT
, fmt_str
, c
);
2341 if( Jim_GetDouble( interp
, objv
[0], &doubleValue
) == JIM_ERR
){
2342 Jim_FreeNewObj( interp
, resObjPtr
);
2345 snprintf( sprintf_buf
, JIM_MAX_FMT
, fmt_str
, doubleValue
);
2353 /* jim widevaluse are 64bit */
2354 if( sizeof(jim_wide
) == sizeof(long long) ){
2362 if (Jim_GetWide(interp
, objv
[0], &wideValue
) == JIM_ERR
) {
2363 Jim_FreeNewObj(interp
, resObjPtr
);
2366 snprintf(sprintf_buf
, JIM_MAX_FMT
, fmt_str
, wideValue
);
2369 sprintf_buf
[0] = '%';
2371 objv
--; /* undo the objv++ below */
2374 spec
[0] = *fmt
; spec
[1] = '\0';
2375 Jim_FreeNewObj(interp
, resObjPtr
);
2376 Jim_SetResult(interp
, Jim_NewEmptyStringObj(interp
));
2377 Jim_AppendStrings(interp
, Jim_GetResult(interp
),
2378 "bad field specifier \"", spec
, "\"", NULL
);
2381 /* force terminate */
2383 printf("FMT was: %s\n", fmt_str
);
2384 printf("RES was: |%s|\n", sprintf_buf
);
2387 sprintf_buf
[ JIM_MAX_FMT
- 1] = 0;
2388 Jim_AppendString( interp
, resObjPtr
, sprintf_buf
, strlen(sprintf_buf
) );
2397 /* -----------------------------------------------------------------------------
2398 * Compared String Object
2399 * ---------------------------------------------------------------------------*/
2401 /* This is strange object that allows to compare a C literal string
2402 * with a Jim object in very short time if the same comparison is done
2403 * multiple times. For example every time the [if] command is executed,
2404 * Jim has to check if a given argument is "else". This comparions if
2405 * the code has no errors are true most of the times, so we can cache
2406 * inside the object the pointer of the string of the last matching
2407 * comparison. Because most C compilers perform literal sharing,
2408 * so that: char *x = "foo", char *y = "foo", will lead to x == y,
2409 * this works pretty well even if comparisons are at different places
2410 * inside the C code. */
2412 static Jim_ObjType comparedStringObjType
= {
2417 JIM_TYPE_REFERENCES
,
2420 /* The only way this object is exposed to the API is via the following
2421 * function. Returns true if the string and the object string repr.
2422 * are the same, otherwise zero is returned.
2424 * Note: this isn't binary safe, but it hardly needs to be.*/
2425 int Jim_CompareStringImmediate(Jim_Interp
*interp
, Jim_Obj
*objPtr
,
2428 if (objPtr
->typePtr
== &comparedStringObjType
&&
2429 objPtr
->internalRep
.ptr
== str
)
2432 const char *objStr
= Jim_GetString(objPtr
, NULL
);
2433 if (strcmp(str
, objStr
) != 0) return 0;
2434 if (objPtr
->typePtr
!= &comparedStringObjType
) {
2435 Jim_FreeIntRep(interp
, objPtr
);
2436 objPtr
->typePtr
= &comparedStringObjType
;
2438 objPtr
->internalRep
.ptr
= (char*)str
; /*ATTENTION: const cast */
2443 int qsortCompareStringPointers(const void *a
, const void *b
)
2445 char * const *sa
= (char * const *)a
;
2446 char * const *sb
= (char * const *)b
;
2447 return strcmp(*sa
, *sb
);
2450 int Jim_GetEnum(Jim_Interp
*interp
, Jim_Obj
*objPtr
,
2451 const char **tablePtr
, int *indexPtr
, const char *name
, int flags
)
2453 const char **entryPtr
= NULL
;
2454 char **tablePtrSorted
;
2458 for (entryPtr
= tablePtr
, i
= 0; *entryPtr
!= NULL
; entryPtr
++, i
++) {
2459 if (Jim_CompareStringImmediate(interp
, objPtr
, *entryPtr
)) {
2463 count
++; /* If nothing matches, this will reach the len of tablePtr */
2465 if (flags
& JIM_ERRMSG
) {
2468 Jim_SetResult(interp
, Jim_NewEmptyStringObj(interp
));
2469 Jim_AppendStrings(interp
, Jim_GetResult(interp
),
2470 "bad ", name
, " \"", Jim_GetString(objPtr
, NULL
), "\": must be one of ",
2472 tablePtrSorted
= Jim_Alloc(sizeof(char*)*count
);
2473 memcpy(tablePtrSorted
, tablePtr
, sizeof(char*)*count
);
2474 qsort(tablePtrSorted
, count
, sizeof(char*), qsortCompareStringPointers
);
2475 for (i
= 0; i
< count
; i
++) {
2476 if (i
+1 == count
&& count
> 1)
2477 Jim_AppendString(interp
, Jim_GetResult(interp
), "or ", -1);
2478 Jim_AppendString(interp
, Jim_GetResult(interp
),
2479 tablePtrSorted
[i
], -1);
2481 Jim_AppendString(interp
, Jim_GetResult(interp
), ", ", -1);
2483 Jim_Free(tablePtrSorted
);
2488 /* -----------------------------------------------------------------------------
2491 * This object is just a string from the language point of view, but
2492 * in the internal representation it contains the filename and line number
2493 * where this given token was read. This information is used by
2494 * Jim_EvalObj() if the object passed happens to be of type "source".
2496 * This allows to propagate the information about line numbers and file
2497 * names and give error messages with absolute line numbers.
2499 * Note that this object uses shared strings for filenames, and the
2500 * pointer to the filename together with the line number is taken into
2501 * the space for the "inline" internal represenation of the Jim_Object,
2502 * so there is almost memory zero-overhead.
2504 * Also the object will be converted to something else if the given
2505 * token it represents in the source file is not something to be
2506 * evaluated (not a script), and will be specialized in some other way,
2507 * so the time overhead is alzo null.
2508 * ---------------------------------------------------------------------------*/
2510 static void FreeSourceInternalRep(Jim_Interp
*interp
, Jim_Obj
*objPtr
);
2511 static void DupSourceInternalRep(Jim_Interp
*interp
, Jim_Obj
*srcPtr
, Jim_Obj
*dupPtr
);
2513 static Jim_ObjType sourceObjType
= {
2515 FreeSourceInternalRep
,
2516 DupSourceInternalRep
,
2518 JIM_TYPE_REFERENCES
,
2521 void FreeSourceInternalRep(Jim_Interp
*interp
, Jim_Obj
*objPtr
)
2523 Jim_ReleaseSharedString(interp
,
2524 objPtr
->internalRep
.sourceValue
.fileName
);
2527 void DupSourceInternalRep(Jim_Interp
*interp
, Jim_Obj
*srcPtr
, Jim_Obj
*dupPtr
)
2529 dupPtr
->internalRep
.sourceValue
.fileName
=
2530 Jim_GetSharedString(interp
,
2531 srcPtr
->internalRep
.sourceValue
.fileName
);
2532 dupPtr
->internalRep
.sourceValue
.lineNumber
=
2533 dupPtr
->internalRep
.sourceValue
.lineNumber
;
2534 dupPtr
->typePtr
= &sourceObjType
;
2537 static void JimSetSourceInfo(Jim_Interp
*interp
, Jim_Obj
*objPtr
,
2538 const char *fileName
, int lineNumber
)
2540 if (Jim_IsShared(objPtr
))
2541 Jim_Panic(interp
,"JimSetSourceInfo called with shared object");
2542 if (objPtr
->typePtr
!= NULL
)
2543 Jim_Panic(interp
,"JimSetSourceInfo called with typePtr != NULL");
2544 objPtr
->internalRep
.sourceValue
.fileName
=
2545 Jim_GetSharedString(interp
, fileName
);
2546 objPtr
->internalRep
.sourceValue
.lineNumber
= lineNumber
;
2547 objPtr
->typePtr
= &sourceObjType
;
2550 /* -----------------------------------------------------------------------------
2552 * ---------------------------------------------------------------------------*/
2554 #define JIM_CMDSTRUCT_EXPAND -1
2556 static void FreeScriptInternalRep(Jim_Interp
*interp
, Jim_Obj
*objPtr
);
2557 static void DupScriptInternalRep(Jim_Interp
*interp
, Jim_Obj
*srcPtr
, Jim_Obj
*dupPtr
);
2558 static int SetScriptFromAny(Jim_Interp
*interp
, struct Jim_Obj
*objPtr
);
2560 static Jim_ObjType scriptObjType
= {
2562 FreeScriptInternalRep
,
2563 DupScriptInternalRep
,
2565 JIM_TYPE_REFERENCES
,
2568 /* The ScriptToken structure represents every token into a scriptObj.
2569 * Every token contains an associated Jim_Obj that can be specialized
2570 * by commands operating on it. */
2571 typedef struct ScriptToken
{
2577 /* This is the script object internal representation. An array of
2578 * ScriptToken structures, with an associated command structure array.
2579 * The command structure is a pre-computed representation of the
2580 * command length and arguments structure as a simple liner array
2583 * For example the script:
2586 * set $i $x$y [foo]BAR
2588 * will produce a ScriptObj with the following Tokens:
2605 * This is a description of the tokens, separators, and of lines.
2606 * The command structure instead represents the number of arguments
2607 * of every command, followed by the tokens of which every argument
2608 * is composed. So for the example script, the cmdstruct array will
2613 * Because "puts hello" has two args (2), composed of single tokens (1 1)
2614 * While "set $i $x$y [foo]BAR" has four (4) args, the first two
2615 * composed of single tokens (1 1) and the last two of double tokens
2618 * The precomputation of the command structure makes Jim_Eval() faster,
2619 * and simpler because there aren't dynamic lengths / allocations.
2621 * -- {expand} handling --
2623 * Expand is handled in a special way. When a command
2624 * contains at least an argument with the {expand} prefix,
2625 * the command structure presents a -1 before the integer
2626 * describing the number of arguments. This is used in order
2627 * to send the command exection to a different path in case
2628 * of {expand} and guarantee a fast path for the more common
2629 * case. Also, the integers describing the number of tokens
2630 * are expressed with negative sign, to allow for fast check
2631 * of what's an {expand}-prefixed argument and what not.
2633 * For example the command:
2635 * list {expand}{1 2}
2637 * Will produce the following cmdstruct array:
2641 * -- the substFlags field of the structure --
2643 * The scriptObj structure is used to represent both "script" objects
2644 * and "subst" objects. In the second case, the cmdStruct related
2645 * fields are not used at all, but there is an additional field used
2646 * that is 'substFlags': this represents the flags used to turn
2647 * the string into the intenral representation used to perform the
2648 * substitution. If this flags are not what the application requires
2649 * the scriptObj is created again. For example the script:
2651 * subst -nocommands $string
2652 * subst -novariables $string
2654 * Will recreate the internal representation of the $string object
2657 typedef struct ScriptObj
{
2658 int len
; /* Length as number of tokens. */
2659 int commands
; /* number of top-level commands in script. */
2660 ScriptToken
*token
; /* Tokens array. */
2661 int *cmdStruct
; /* commands structure */
2662 int csLen
; /* length of the cmdStruct array. */
2663 int substFlags
; /* flags used for the compilation of "subst" objects */
2664 int inUse
; /* Used to share a ScriptObj. Currently
2665 only used by Jim_EvalObj() as protection against
2666 shimmering of the currently evaluated object. */
2670 void FreeScriptInternalRep(Jim_Interp
*interp
, Jim_Obj
*objPtr
)
2673 struct ScriptObj
*script
= (void*) objPtr
->internalRep
.ptr
;
2676 if (script
->inUse
!= 0) return;
2677 for (i
= 0; i
< script
->len
; i
++) {
2678 if (script
->token
[i
].objPtr
!= NULL
)
2679 Jim_DecrRefCount(interp
, script
->token
[i
].objPtr
);
2681 Jim_Free(script
->token
);
2682 Jim_Free(script
->cmdStruct
);
2683 Jim_Free(script
->fileName
);
2687 void DupScriptInternalRep(Jim_Interp
*interp
, Jim_Obj
*srcPtr
, Jim_Obj
*dupPtr
)
2689 JIM_NOTUSED(interp
);
2690 JIM_NOTUSED(srcPtr
);
2692 /* Just returns an simple string. */
2693 dupPtr
->typePtr
= NULL
;
2696 /* Add a new token to the internal repr of a script object */
2697 static void ScriptObjAddToken(Jim_Interp
*interp
, struct ScriptObj
*script
,
2698 char *strtoken
, int len
, int type
, char *filename
, int linenr
)
2701 struct ScriptToken
*token
;
2703 prevtype
= (script
->len
== 0) ? JIM_TT_EOL
: \
2704 script
->token
[script
->len
-1].type
;
2705 /* Skip tokens without meaning, like words separators
2706 * following a word separator or an end of command and
2708 if (prevtype
== JIM_TT_EOL
) {
2709 if (type
== JIM_TT_EOL
|| type
== JIM_TT_SEP
) {
2713 } else if (prevtype
== JIM_TT_SEP
) {
2714 if (type
== JIM_TT_SEP
) {
2717 } else if (type
== JIM_TT_EOL
) {
2718 /* If an EOL is following by a SEP, drop the previous
2721 Jim_DecrRefCount(interp
, script
->token
[script
->len
].objPtr
);
2723 } else if (prevtype
!= JIM_TT_EOL
&& prevtype
!= JIM_TT_SEP
&&
2724 type
== JIM_TT_ESC
&& len
== 0)
2726 /* Don't add empty tokens used in interpolation */
2730 /* Make space for a new istruction */
2732 script
->token
= Jim_Realloc(script
->token
,
2733 sizeof(ScriptToken
)*script
->len
);
2734 /* Initialize the new token */
2735 token
= script
->token
+(script
->len
-1);
2737 /* Every object is intially as a string, but the
2738 * internal type may be specialized during execution of the
2740 token
->objPtr
= Jim_NewStringObjNoAlloc(interp
, strtoken
, len
);
2741 /* To add source info to SEP and EOL tokens is useless because
2742 * they will never by called as arguments of Jim_EvalObj(). */
2743 if (filename
&& type
!= JIM_TT_SEP
&& type
!= JIM_TT_EOL
)
2744 JimSetSourceInfo(interp
, token
->objPtr
, filename
, linenr
);
2745 Jim_IncrRefCount(token
->objPtr
);
2746 token
->linenr
= linenr
;
2749 /* Add an integer into the command structure field of the script object. */
2750 static void ScriptObjAddInt(struct ScriptObj
*script
, int val
)
2753 script
->cmdStruct
= Jim_Realloc(script
->cmdStruct
,
2754 sizeof(int)*script
->csLen
);
2755 script
->cmdStruct
[script
->csLen
-1] = val
;
2758 /* Search a Jim_Obj contained in 'script' with the same stinrg repr.
2759 * of objPtr. Search nested script objects recursively. */
2760 static Jim_Obj
*ScriptSearchLiteral(Jim_Interp
*interp
, ScriptObj
*script
,
2761 ScriptObj
*scriptBarrier
, Jim_Obj
*objPtr
)
2765 for (i
= 0; i
< script
->len
; i
++) {
2766 if (script
->token
[i
].objPtr
!= objPtr
&&
2767 Jim_StringEqObj(script
->token
[i
].objPtr
, objPtr
, 0)) {
2768 return script
->token
[i
].objPtr
;
2770 /* Enter recursively on scripts only if the object
2771 * is not the same as the one we are searching for
2772 * shared occurrences. */
2773 if (script
->token
[i
].objPtr
->typePtr
== &scriptObjType
&&
2774 script
->token
[i
].objPtr
!= objPtr
) {
2775 Jim_Obj
*foundObjPtr
;
2777 ScriptObj
*subScript
=
2778 script
->token
[i
].objPtr
->internalRep
.ptr
;
2779 /* Don't recursively enter the script we are trying
2780 * to make shared to avoid circular references. */
2781 if (subScript
== scriptBarrier
) continue;
2782 if (subScript
!= script
) {
2784 ScriptSearchLiteral(interp
, subScript
,
2785 scriptBarrier
, objPtr
);
2786 if (foundObjPtr
!= NULL
)
2794 /* Share literals of a script recursively sharing sub-scripts literals. */
2795 static void ScriptShareLiterals(Jim_Interp
*interp
, ScriptObj
*script
,
2796 ScriptObj
*topLevelScript
)
2801 /* Try to share with toplevel object. */
2802 if (topLevelScript
!= NULL
) {
2803 for (i
= 0; i
< script
->len
; i
++) {
2804 Jim_Obj
*foundObjPtr
;
2805 char *str
= script
->token
[i
].objPtr
->bytes
;
2807 if (script
->token
[i
].objPtr
->refCount
!= 1) continue;
2808 if (script
->token
[i
].objPtr
->typePtr
== &scriptObjType
) continue;
2809 if (strchr(str
, ' ') || strchr(str
, '\n')) continue;
2810 foundObjPtr
= ScriptSearchLiteral(interp
,
2812 script
, /* barrier */
2813 script
->token
[i
].objPtr
);
2814 if (foundObjPtr
!= NULL
) {
2815 Jim_IncrRefCount(foundObjPtr
);
2816 Jim_DecrRefCount(interp
,
2817 script
->token
[i
].objPtr
);
2818 script
->token
[i
].objPtr
= foundObjPtr
;
2822 /* Try to share locally */
2823 for (i
= 0; i
< script
->len
; i
++) {
2824 char *str
= script
->token
[i
].objPtr
->bytes
;
2826 if (script
->token
[i
].objPtr
->refCount
!= 1) continue;
2827 if (strchr(str
, ' ') || strchr(str
, '\n')) continue;
2828 for (j
= 0; j
< script
->len
; j
++) {
2829 if (script
->token
[i
].objPtr
!=
2830 script
->token
[j
].objPtr
&&
2831 Jim_StringEqObj(script
->token
[i
].objPtr
,
2832 script
->token
[j
].objPtr
, 0))
2834 Jim_IncrRefCount(script
->token
[j
].objPtr
);
2835 Jim_DecrRefCount(interp
,
2836 script
->token
[i
].objPtr
);
2837 script
->token
[i
].objPtr
=
2838 script
->token
[j
].objPtr
;
2844 /* This method takes the string representation of an object
2845 * as a Tcl script, and generates the pre-parsed internal representation
2847 int SetScriptFromAny(Jim_Interp
*interp
, struct Jim_Obj
*objPtr
)
2850 const char *scriptText
= Jim_GetString(objPtr
, &scriptTextLen
);
2851 struct JimParserCtx parser
;
2852 struct ScriptObj
*script
= Jim_Alloc(sizeof(*script
));
2854 int args
, tokens
, start
, end
, i
;
2855 int initialLineNumber
;
2856 int propagateSourceInfo
= 0;
2860 script
->commands
= 0;
2861 script
->token
= NULL
;
2862 script
->cmdStruct
= NULL
;
2864 /* Try to get information about filename / line number */
2865 if (objPtr
->typePtr
== &sourceObjType
) {
2867 Jim_StrDup(objPtr
->internalRep
.sourceValue
.fileName
);
2868 initialLineNumber
= objPtr
->internalRep
.sourceValue
.lineNumber
;
2869 propagateSourceInfo
= 1;
2871 script
->fileName
= Jim_StrDup("?");
2872 initialLineNumber
= 1;
2875 JimParserInit(&parser
, scriptText
, scriptTextLen
, initialLineNumber
);
2876 while(!JimParserEof(&parser
)) {
2878 int len
, type
, linenr
;
2880 JimParseScript(&parser
);
2881 token
= JimParserGetToken(&parser
, &len
, &type
, &linenr
);
2882 ScriptObjAddToken(interp
, script
, token
, len
, type
,
2883 propagateSourceInfo
? script
->fileName
: NULL
,
2886 token
= script
->token
;
2888 /* Compute the command structure array
2889 * (see the ScriptObj struct definition for more info) */
2890 start
= 0; /* Current command start token index */
2891 end
= -1; /* Current command end token index */
2893 int expand
= 0; /* expand flag. set to 1 on {expand} form. */
2894 int interpolation
= 0; /* set to 1 if there is at least one
2895 argument of the command obtained via
2896 interpolation of more tokens. */
2897 /* Search for the end of command, while
2898 * count the number of args. */
2900 if (start
>= script
->len
) break;
2901 args
= 1; /* Number of args in current command */
2902 while (token
[end
].type
!= JIM_TT_EOL
) {
2903 if (end
== 0 || token
[end
-1].type
== JIM_TT_SEP
||
2904 token
[end
-1].type
== JIM_TT_EOL
)
2906 if (token
[end
].type
== JIM_TT_STR
&&
2907 token
[end
+1].type
!= JIM_TT_SEP
&&
2908 token
[end
+1].type
!= JIM_TT_EOL
&&
2909 (!strcmp(token
[end
].objPtr
->bytes
, "expand") ||
2910 !strcmp(token
[end
].objPtr
->bytes
, "*")))
2913 if (token
[end
].type
== JIM_TT_SEP
)
2917 interpolation
= !((end
-start
+1) == args
*2);
2918 /* Add the 'number of arguments' info into cmdstruct.
2919 * Negative value if there is list expansion involved. */
2921 ScriptObjAddInt(script
, -1);
2922 ScriptObjAddInt(script
, args
);
2923 /* Now add info about the number of tokens. */
2924 tokens
= 0; /* Number of tokens in current argument. */
2926 for (i
= start
; i
<= end
; i
++) {
2927 if (token
[i
].type
== JIM_TT_SEP
||
2928 token
[i
].type
== JIM_TT_EOL
)
2930 if (tokens
== 1 && expand
)
2932 ScriptObjAddInt(script
,
2933 expand
? -tokens
: tokens
);
2938 } else if (tokens
== 0 && token
[i
].type
== JIM_TT_STR
&&
2939 (!strcmp(token
[i
].objPtr
->bytes
, "expand") ||
2940 !strcmp(token
[i
].objPtr
->bytes
, "*")))
2947 /* Perform literal sharing, but only for objects that appear
2948 * to be scripts written as literals inside the source code,
2949 * and not computed at runtime. Literal sharing is a costly
2950 * operation that should be done only against objects that
2951 * are likely to require compilation only the first time, and
2952 * then are executed multiple times. */
2953 if (propagateSourceInfo
&& interp
->framePtr
->procBodyObjPtr
) {
2954 Jim_Obj
*bodyObjPtr
= interp
->framePtr
->procBodyObjPtr
;
2955 if (bodyObjPtr
->typePtr
== &scriptObjType
) {
2956 ScriptObj
*bodyScript
=
2957 bodyObjPtr
->internalRep
.ptr
;
2958 ScriptShareLiterals(interp
, script
, bodyScript
);
2960 } else if (propagateSourceInfo
) {
2961 ScriptShareLiterals(interp
, script
, NULL
);
2963 /* Free the old internal rep and set the new one. */
2964 Jim_FreeIntRep(interp
, objPtr
);
2965 Jim_SetIntRepPtr(objPtr
, script
);
2966 objPtr
->typePtr
= &scriptObjType
;
2970 ScriptObj
*Jim_GetScript(Jim_Interp
*interp
, Jim_Obj
*objPtr
)
2972 if (objPtr
->typePtr
!= &scriptObjType
) {
2973 SetScriptFromAny(interp
, objPtr
);
2975 return (ScriptObj
*) Jim_GetIntRepPtr(objPtr
);
2978 /* -----------------------------------------------------------------------------
2980 * ---------------------------------------------------------------------------*/
2982 /* Commands HashTable Type.
2984 * Keys are dynamic allocated strings, Values are Jim_Cmd structures. */
2985 static void Jim_CommandsHT_ValDestructor(void *interp
, void *val
)
2987 Jim_Cmd
*cmdPtr
= (void*) val
;
2989 if (cmdPtr
->cmdProc
== NULL
) {
2990 Jim_DecrRefCount(interp
, cmdPtr
->argListObjPtr
);
2991 Jim_DecrRefCount(interp
, cmdPtr
->bodyObjPtr
);
2992 if (cmdPtr
->staticVars
) {
2993 Jim_FreeHashTable(cmdPtr
->staticVars
);
2994 Jim_Free(cmdPtr
->staticVars
);
2996 } else if (cmdPtr
->delProc
!= NULL
) {
2997 /* If it was a C coded command, call the delProc if any */
2998 cmdPtr
->delProc(interp
, cmdPtr
->privData
);
3003 static Jim_HashTableType JimCommandsHashTableType
= {
3004 JimStringCopyHTHashFunction
, /* hash function */
3005 JimStringCopyHTKeyDup
, /* key dup */
3007 JimStringCopyHTKeyCompare
, /* key compare */
3008 JimStringCopyHTKeyDestructor
, /* key destructor */
3009 Jim_CommandsHT_ValDestructor
/* val destructor */
3012 /* ------------------------- Commands related functions --------------------- */
3014 int Jim_CreateCommand(Jim_Interp
*interp
, const char *cmdName
,
3015 Jim_CmdProc cmdProc
, void *privData
, Jim_DelCmdProc delProc
)
3020 he
= Jim_FindHashEntry(&interp
->commands
, cmdName
);
3021 if (he
== NULL
) { /* New command to create */
3022 cmdPtr
= Jim_Alloc(sizeof(*cmdPtr
));
3023 cmdPtr
->cmdProc
= cmdProc
;
3024 cmdPtr
->privData
= privData
;
3025 cmdPtr
->delProc
= delProc
;
3026 Jim_AddHashEntry(&interp
->commands
, cmdName
, cmdPtr
);
3028 Jim_InterpIncrProcEpoch(interp
);
3029 /* Free the arglist/body objects if it was a Tcl procedure */
3031 if (cmdPtr
->cmdProc
== NULL
) {
3032 Jim_DecrRefCount(interp
, cmdPtr
->argListObjPtr
);
3033 Jim_DecrRefCount(interp
, cmdPtr
->bodyObjPtr
);
3034 if (cmdPtr
->staticVars
) {
3035 Jim_FreeHashTable(cmdPtr
->staticVars
);
3036 Jim_Free(cmdPtr
->staticVars
);
3038 cmdPtr
->staticVars
= NULL
;
3039 } else if (cmdPtr
->delProc
!= NULL
) {
3040 /* If it was a C coded command, call the delProc if any */
3041 cmdPtr
->delProc(interp
, cmdPtr
->privData
);
3043 cmdPtr
->cmdProc
= cmdProc
;
3044 cmdPtr
->privData
= privData
;
3046 /* There is no need to increment the 'proc epoch' because
3047 * creation of a new procedure can never affect existing
3048 * cached commands. We don't do negative caching. */
3052 int Jim_CreateProcedure(Jim_Interp
*interp
, const char *cmdName
,
3053 Jim_Obj
*argListObjPtr
, Jim_Obj
*staticsListObjPtr
, Jim_Obj
*bodyObjPtr
,
3054 int arityMin
, int arityMax
)
3058 cmdPtr
= Jim_Alloc(sizeof(*cmdPtr
));
3059 cmdPtr
->cmdProc
= NULL
; /* Not a C coded command */
3060 cmdPtr
->argListObjPtr
= argListObjPtr
;
3061 cmdPtr
->bodyObjPtr
= bodyObjPtr
;
3062 Jim_IncrRefCount(argListObjPtr
);
3063 Jim_IncrRefCount(bodyObjPtr
);
3064 cmdPtr
->arityMin
= arityMin
;
3065 cmdPtr
->arityMax
= arityMax
;
3066 cmdPtr
->staticVars
= NULL
;
3068 /* Create the statics hash table. */
3069 if (staticsListObjPtr
) {
3072 Jim_ListLength(interp
, staticsListObjPtr
, &len
);
3074 cmdPtr
->staticVars
= Jim_Alloc(sizeof(Jim_HashTable
));
3075 Jim_InitHashTable(cmdPtr
->staticVars
, &JimVariablesHashTableType
,
3077 for (i
= 0; i
< len
; i
++) {
3078 Jim_Obj
*objPtr
, *initObjPtr
, *nameObjPtr
;
3082 Jim_ListIndex(interp
, staticsListObjPtr
, i
, &objPtr
, JIM_NONE
);
3083 /* Check if it's composed of two elements. */
3084 Jim_ListLength(interp
, objPtr
, &subLen
);
3085 if (subLen
== 1 || subLen
== 2) {
3086 /* Try to get the variable value from the current
3088 Jim_ListIndex(interp
, objPtr
, 0, &nameObjPtr
, JIM_NONE
);
3090 initObjPtr
= Jim_GetVariable(interp
, nameObjPtr
,
3092 if (initObjPtr
== NULL
) {
3093 Jim_SetResult(interp
,
3094 Jim_NewEmptyStringObj(interp
));
3095 Jim_AppendStrings(interp
, Jim_GetResult(interp
),
3096 "variable for initialization of static \"",
3097 Jim_GetString(nameObjPtr
, NULL
),
3098 "\" not found in the local context",
3103 Jim_ListIndex(interp
, objPtr
, 1, &initObjPtr
, JIM_NONE
);
3105 varPtr
= Jim_Alloc(sizeof(*varPtr
));
3106 varPtr
->objPtr
= initObjPtr
;
3107 Jim_IncrRefCount(initObjPtr
);
3108 varPtr
->linkFramePtr
= NULL
;
3109 if (Jim_AddHashEntry(cmdPtr
->staticVars
,
3110 Jim_GetString(nameObjPtr
, NULL
),
3113 Jim_SetResult(interp
, Jim_NewEmptyStringObj(interp
));
3114 Jim_AppendStrings(interp
, Jim_GetResult(interp
),
3115 "static variable name \"",
3116 Jim_GetString(objPtr
, NULL
), "\"",
3117 " duplicated in statics list", NULL
);
3118 Jim_DecrRefCount(interp
, initObjPtr
);
3123 Jim_SetResult(interp
, Jim_NewEmptyStringObj(interp
));
3124 Jim_AppendStrings(interp
, Jim_GetResult(interp
),
3125 "too many fields in static specifier \"",
3126 objPtr
, "\"", NULL
);
3133 /* Add the new command */
3135 /* it may already exist, so we try to delete the old one */
3136 if (Jim_DeleteHashEntry(&interp
->commands
, cmdName
) != JIM_ERR
) {
3137 /* There was an old procedure with the same name, this requires
3138 * a 'proc epoch' update. */
3139 Jim_InterpIncrProcEpoch(interp
);
3141 /* If a procedure with the same name didn't existed there is no need
3142 * to increment the 'proc epoch' because creation of a new procedure
3143 * can never affect existing cached commands. We don't do
3144 * negative caching. */
3145 Jim_AddHashEntry(&interp
->commands
, cmdName
, cmdPtr
);
3149 Jim_FreeHashTable(cmdPtr
->staticVars
);
3150 Jim_Free(cmdPtr
->staticVars
);
3151 Jim_DecrRefCount(interp
, argListObjPtr
);
3152 Jim_DecrRefCount(interp
, bodyObjPtr
);
3157 int Jim_DeleteCommand(Jim_Interp
*interp
, const char *cmdName
)
3159 if (Jim_DeleteHashEntry(&interp
->commands
, cmdName
) == JIM_ERR
)
3161 Jim_InterpIncrProcEpoch(interp
);
3165 int Jim_RenameCommand(Jim_Interp
*interp
, const char *oldName
,
3166 const char *newName
)
3170 Jim_Cmd
*copyCmdPtr
;
3172 if (newName
[0] == '\0') /* Delete! */
3173 return Jim_DeleteCommand(interp
, oldName
);
3175 he
= Jim_FindHashEntry(&interp
->commands
, oldName
);
3177 return JIM_ERR
; /* Invalid command name */
3179 copyCmdPtr
= Jim_Alloc(sizeof(Jim_Cmd
));
3180 *copyCmdPtr
= *cmdPtr
;
3181 /* In order to avoid that a procedure will get arglist/body/statics
3182 * freed by the hash table methods, fake a C-coded command
3183 * setting cmdPtr->cmdProc as not NULL */
3184 cmdPtr
->cmdProc
= (void*)1;
3185 /* Also make sure delProc is NULL. */
3186 cmdPtr
->delProc
= NULL
;
3187 /* Destroy the old command, and make sure the new is freed
3189 Jim_DeleteHashEntry(&interp
->commands
, oldName
);
3190 Jim_DeleteHashEntry(&interp
->commands
, newName
);
3191 /* Now the new command. We are sure it can't fail because
3192 * the target name was already freed. */
3193 Jim_AddHashEntry(&interp
->commands
, newName
, copyCmdPtr
);
3194 /* Increment the epoch */
3195 Jim_InterpIncrProcEpoch(interp
);
3199 /* -----------------------------------------------------------------------------
3201 * ---------------------------------------------------------------------------*/
3203 static int SetCommandFromAny(Jim_Interp
*interp
, struct Jim_Obj
*objPtr
);
3205 static Jim_ObjType commandObjType
= {
3210 JIM_TYPE_REFERENCES
,
3213 int SetCommandFromAny(Jim_Interp
*interp
, Jim_Obj
*objPtr
)
3216 const char *cmdName
;
3218 /* Get the string representation */
3219 cmdName
= Jim_GetString(objPtr
, NULL
);
3220 /* Lookup this name into the commands hash table */
3221 he
= Jim_FindHashEntry(&interp
->commands
, cmdName
);
3225 /* Free the old internal repr and set the new one. */
3226 Jim_FreeIntRep(interp
, objPtr
);
3227 objPtr
->typePtr
= &commandObjType
;
3228 objPtr
->internalRep
.cmdValue
.procEpoch
= interp
->procEpoch
;
3229 objPtr
->internalRep
.cmdValue
.cmdPtr
= (void*)he
->val
;
3233 /* This function returns the command structure for the command name
3234 * stored in objPtr. It tries to specialize the objPtr to contain
3235 * a cached info instead to perform the lookup into the hash table
3236 * every time. The information cached may not be uptodate, in such
3237 * a case the lookup is performed and the cache updated. */
3238 Jim_Cmd
*Jim_GetCommand(Jim_Interp
*interp
, Jim_Obj
*objPtr
, int flags
)
3240 if ((objPtr
->typePtr
!= &commandObjType
||
3241 objPtr
->internalRep
.cmdValue
.procEpoch
!= interp
->procEpoch
) &&
3242 SetCommandFromAny(interp
, objPtr
) == JIM_ERR
) {
3243 if (flags
& JIM_ERRMSG
) {
3244 Jim_SetResult(interp
, Jim_NewEmptyStringObj(interp
));
3245 Jim_AppendStrings(interp
, Jim_GetResult(interp
),
3246 "invalid command name \"", objPtr
->bytes
, "\"",
3251 return objPtr
->internalRep
.cmdValue
.cmdPtr
;
3254 /* -----------------------------------------------------------------------------
3256 * ---------------------------------------------------------------------------*/
3258 /* Variables HashTable Type.
3260 * Keys are dynamic allocated strings, Values are Jim_Var structures. */
3261 static void JimVariablesHTValDestructor(void *interp
, void *val
)
3263 Jim_Var
*varPtr
= (void*) val
;
3265 Jim_DecrRefCount(interp
, varPtr
->objPtr
);
3269 static Jim_HashTableType JimVariablesHashTableType
= {
3270 JimStringCopyHTHashFunction
, /* hash function */
3271 JimStringCopyHTKeyDup
, /* key dup */
3273 JimStringCopyHTKeyCompare
, /* key compare */
3274 JimStringCopyHTKeyDestructor
, /* key destructor */
3275 JimVariablesHTValDestructor
/* val destructor */
3278 /* -----------------------------------------------------------------------------
3280 * ---------------------------------------------------------------------------*/
3282 #define JIM_DICT_SUGAR 100 /* Only returned by SetVariableFromAny() */
3284 static int SetVariableFromAny(Jim_Interp
*interp
, struct Jim_Obj
*objPtr
);
3286 static Jim_ObjType variableObjType
= {
3291 JIM_TYPE_REFERENCES
,
3294 /* Return true if the string "str" looks like syntax sugar for [dict]. I.e.
3295 * is in the form "varname(key)". */
3296 static int Jim_NameIsDictSugar(const char *str
, int len
)
3300 if (len
&& str
[len
-1] == ')' && strchr(str
, '(') != NULL
)
3305 /* This method should be called only by the variable API.
3306 * It returns JIM_OK on success (variable already exists),
3307 * JIM_ERR if it does not exists, JIM_DICT_GLUE if it's not
3308 * a variable name, but syntax glue for [dict] i.e. the last
3309 * character is ')' */
3310 int SetVariableFromAny(Jim_Interp
*interp
, struct Jim_Obj
*objPtr
)
3313 const char *varName
;
3316 /* Check if the object is already an uptodate variable */
3317 if (objPtr
->typePtr
== &variableObjType
&&
3318 objPtr
->internalRep
.varValue
.callFrameId
== interp
->framePtr
->id
)
3319 return JIM_OK
; /* nothing to do */
3320 /* Get the string representation */
3321 varName
= Jim_GetString(objPtr
, &len
);
3322 /* Make sure it's not syntax glue to get/set dict. */
3323 if (Jim_NameIsDictSugar(varName
, len
))
3324 return JIM_DICT_SUGAR
;
3325 /* Lookup this name into the variables hash table */
3326 he
= Jim_FindHashEntry(&interp
->framePtr
->vars
, varName
);
3328 /* Try with static vars. */
3329 if (interp
->framePtr
->staticVars
== NULL
)
3331 if (!(he
= Jim_FindHashEntry(interp
->framePtr
->staticVars
, varName
)))
3334 /* Free the old internal repr and set the new one. */
3335 Jim_FreeIntRep(interp
, objPtr
);
3336 objPtr
->typePtr
= &variableObjType
;
3337 objPtr
->internalRep
.varValue
.callFrameId
= interp
->framePtr
->id
;
3338 objPtr
->internalRep
.varValue
.varPtr
= (void*)he
->val
;
3342 /* -------------------- Variables related functions ------------------------- */
3343 static int JimDictSugarSet(Jim_Interp
*interp
, Jim_Obj
*ObjPtr
,
3344 Jim_Obj
*valObjPtr
);
3345 static Jim_Obj
*JimDictSugarGet(Jim_Interp
*interp
, Jim_Obj
*ObjPtr
);
3347 /* For now that's dummy. Variables lookup should be optimized
3348 * in many ways, with caching of lookups, and possibly with
3349 * a table of pre-allocated vars in every CallFrame for local vars.
3350 * All the caching should also have an 'epoch' mechanism similar
3351 * to the one used by Tcl for procedures lookup caching. */
3353 int Jim_SetVariable(Jim_Interp
*interp
, Jim_Obj
*nameObjPtr
, Jim_Obj
*valObjPtr
)
3359 if ((err
= SetVariableFromAny(interp
, nameObjPtr
)) != JIM_OK
) {
3360 /* Check for [dict] syntax sugar. */
3361 if (err
== JIM_DICT_SUGAR
)
3362 return JimDictSugarSet(interp
, nameObjPtr
, valObjPtr
);
3363 /* New variable to create */
3364 name
= Jim_GetString(nameObjPtr
, NULL
);
3366 var
= Jim_Alloc(sizeof(*var
));
3367 var
->objPtr
= valObjPtr
;
3368 Jim_IncrRefCount(valObjPtr
);
3369 var
->linkFramePtr
= NULL
;
3370 /* Insert the new variable */
3371 Jim_AddHashEntry(&interp
->framePtr
->vars
, name
, var
);
3372 /* Make the object int rep a variable */
3373 Jim_FreeIntRep(interp
, nameObjPtr
);
3374 nameObjPtr
->typePtr
= &variableObjType
;
3375 nameObjPtr
->internalRep
.varValue
.callFrameId
=
3376 interp
->framePtr
->id
;
3377 nameObjPtr
->internalRep
.varValue
.varPtr
= var
;
3379 var
= nameObjPtr
->internalRep
.varValue
.varPtr
;
3380 if (var
->linkFramePtr
== NULL
) {
3381 Jim_IncrRefCount(valObjPtr
);
3382 Jim_DecrRefCount(interp
, var
->objPtr
);
3383 var
->objPtr
= valObjPtr
;
3384 } else { /* Else handle the link */
3385 Jim_CallFrame
*savedCallFrame
;
3387 savedCallFrame
= interp
->framePtr
;
3388 interp
->framePtr
= var
->linkFramePtr
;
3389 err
= Jim_SetVariable(interp
, var
->objPtr
, valObjPtr
);
3390 interp
->framePtr
= savedCallFrame
;
3398 int Jim_SetVariableStr(Jim_Interp
*interp
, const char *name
, Jim_Obj
*objPtr
)
3400 Jim_Obj
*nameObjPtr
;
3403 nameObjPtr
= Jim_NewStringObj(interp
, name
, -1);
3404 Jim_IncrRefCount(nameObjPtr
);
3405 result
= Jim_SetVariable(interp
, nameObjPtr
, objPtr
);
3406 Jim_DecrRefCount(interp
, nameObjPtr
);
3410 int Jim_SetGlobalVariableStr(Jim_Interp
*interp
, const char *name
, Jim_Obj
*objPtr
)
3412 Jim_CallFrame
*savedFramePtr
;
3415 savedFramePtr
= interp
->framePtr
;
3416 interp
->framePtr
= interp
->topFramePtr
;
3417 result
= Jim_SetVariableStr(interp
, name
, objPtr
);
3418 interp
->framePtr
= savedFramePtr
;
3422 int Jim_SetVariableStrWithStr(Jim_Interp
*interp
, const char *name
, const char *val
)
3424 Jim_Obj
*nameObjPtr
, *valObjPtr
;
3427 nameObjPtr
= Jim_NewStringObj(interp
, name
, -1);
3428 valObjPtr
= Jim_NewStringObj(interp
, val
, -1);
3429 Jim_IncrRefCount(nameObjPtr
);
3430 Jim_IncrRefCount(valObjPtr
);
3431 result
= Jim_SetVariable(interp
, nameObjPtr
, valObjPtr
);
3432 Jim_DecrRefCount(interp
, nameObjPtr
);
3433 Jim_DecrRefCount(interp
, valObjPtr
);
3437 int Jim_SetVariableLink(Jim_Interp
*interp
, Jim_Obj
*nameObjPtr
,
3438 Jim_Obj
*targetNameObjPtr
, Jim_CallFrame
*targetCallFrame
)
3440 const char *varName
;
3443 /* Check for cycles. */
3444 if (interp
->framePtr
== targetCallFrame
) {
3445 Jim_Obj
*objPtr
= targetNameObjPtr
;
3447 /* Cycles are only possible with 'uplevel 0' */
3449 if (Jim_StringEqObj(objPtr
, nameObjPtr
, 0)) {
3450 Jim_SetResultString(interp
,
3451 "can't upvar from variable to itself", -1);
3454 if (SetVariableFromAny(interp
, objPtr
) != JIM_OK
)
3456 varPtr
= objPtr
->internalRep
.varValue
.varPtr
;
3457 if (varPtr
->linkFramePtr
!= targetCallFrame
) break;
3458 objPtr
= varPtr
->objPtr
;
3461 varName
= Jim_GetString(nameObjPtr
, &len
);
3462 if (Jim_NameIsDictSugar(varName
, len
)) {
3463 Jim_SetResultString(interp
,
3464 "Dict key syntax invalid as link source", -1);
3467 /* Perform the binding */
3468 Jim_SetVariable(interp
, nameObjPtr
, targetNameObjPtr
);
3469 /* We are now sure 'nameObjPtr' type is variableObjType */
3470 nameObjPtr
->internalRep
.varValue
.varPtr
->linkFramePtr
= targetCallFrame
;
3474 /* Return the Jim_Obj pointer associated with a variable name,
3475 * or NULL if the variable was not found in the current context.
3476 * The same optimization discussed in the comment to the
3477 * 'SetVariable' function should apply here. */
3478 Jim_Obj
*Jim_GetVariable(Jim_Interp
*interp
, Jim_Obj
*nameObjPtr
, int flags
)
3482 /* All the rest is handled here */
3483 if ((err
= SetVariableFromAny(interp
, nameObjPtr
)) != JIM_OK
) {
3484 /* Check for [dict] syntax sugar. */
3485 if (err
== JIM_DICT_SUGAR
)
3486 return JimDictSugarGet(interp
, nameObjPtr
);
3487 if (flags
& JIM_ERRMSG
) {
3488 Jim_SetResult(interp
, Jim_NewEmptyStringObj(interp
));
3489 Jim_AppendStrings(interp
, Jim_GetResult(interp
),
3490 "can't read \"", nameObjPtr
->bytes
,
3491 "\": no such variable", NULL
);
3497 Jim_CallFrame
*savedCallFrame
;
3499 varPtr
= nameObjPtr
->internalRep
.varValue
.varPtr
;
3500 if (varPtr
->linkFramePtr
== NULL
)
3501 return varPtr
->objPtr
;
3502 /* The variable is a link? Resolve it. */
3503 savedCallFrame
= interp
->framePtr
;
3504 interp
->framePtr
= varPtr
->linkFramePtr
;
3505 objPtr
= Jim_GetVariable(interp
, varPtr
->objPtr
, JIM_NONE
);
3506 if (objPtr
== NULL
&& flags
& JIM_ERRMSG
) {
3507 Jim_SetResult(interp
, Jim_NewEmptyStringObj(interp
));
3508 Jim_AppendStrings(interp
, Jim_GetResult(interp
),
3509 "can't read \"", nameObjPtr
->bytes
,
3510 "\": no such variable", NULL
);
3512 interp
->framePtr
= savedCallFrame
;
3517 Jim_Obj
*Jim_GetGlobalVariable(Jim_Interp
*interp
, Jim_Obj
*nameObjPtr
,
3520 Jim_CallFrame
*savedFramePtr
;
3523 savedFramePtr
= interp
->framePtr
;
3524 interp
->framePtr
= interp
->topFramePtr
;
3525 objPtr
= Jim_GetVariable(interp
, nameObjPtr
, flags
);
3526 interp
->framePtr
= savedFramePtr
;
3531 Jim_Obj
*Jim_GetVariableStr(Jim_Interp
*interp
, const char *name
, int flags
)
3533 Jim_Obj
*nameObjPtr
, *varObjPtr
;
3535 nameObjPtr
= Jim_NewStringObj(interp
, name
, -1);
3536 Jim_IncrRefCount(nameObjPtr
);
3537 varObjPtr
= Jim_GetVariable(interp
, nameObjPtr
, flags
);
3538 Jim_DecrRefCount(interp
, nameObjPtr
);
3542 Jim_Obj
*Jim_GetGlobalVariableStr(Jim_Interp
*interp
, const char *name
,
3545 Jim_CallFrame
*savedFramePtr
;
3548 savedFramePtr
= interp
->framePtr
;
3549 interp
->framePtr
= interp
->topFramePtr
;
3550 objPtr
= Jim_GetVariableStr(interp
, name
, flags
);
3551 interp
->framePtr
= savedFramePtr
;
3556 /* Unset a variable.
3557 * Note: On success unset invalidates all the variable objects created
3558 * in the current call frame incrementing. */
3559 int Jim_UnsetVariable(Jim_Interp
*interp
, Jim_Obj
*nameObjPtr
, int flags
)
3565 if ((err
= SetVariableFromAny(interp
, nameObjPtr
)) != JIM_OK
) {
3566 /* Check for [dict] syntax sugar. */
3567 if (err
== JIM_DICT_SUGAR
)
3568 return JimDictSugarSet(interp
, nameObjPtr
, NULL
);
3569 Jim_SetResult(interp
, Jim_NewEmptyStringObj(interp
));
3570 Jim_AppendStrings(interp
, Jim_GetResult(interp
),
3571 "can't unset \"", nameObjPtr
->bytes
,
3572 "\": no such variable", NULL
);
3573 return JIM_ERR
; /* var not found */
3575 varPtr
= nameObjPtr
->internalRep
.varValue
.varPtr
;
3576 /* If it's a link call UnsetVariable recursively */
3577 if (varPtr
->linkFramePtr
) {
3580 Jim_CallFrame
*savedCallFrame
;
3582 savedCallFrame
= interp
->framePtr
;
3583 interp
->framePtr
= varPtr
->linkFramePtr
;
3584 retval
= Jim_UnsetVariable(interp
, varPtr
->objPtr
, JIM_NONE
);
3585 interp
->framePtr
= savedCallFrame
;
3586 if (retval
!= JIM_OK
&& flags
& JIM_ERRMSG
) {
3587 Jim_SetResult(interp
, Jim_NewEmptyStringObj(interp
));
3588 Jim_AppendStrings(interp
, Jim_GetResult(interp
),
3589 "can't unset \"", nameObjPtr
->bytes
,
3590 "\": no such variable", NULL
);
3594 name
= Jim_GetString(nameObjPtr
, NULL
);
3595 if (Jim_DeleteHashEntry(&interp
->framePtr
->vars
, name
)
3596 != JIM_OK
) return JIM_ERR
;
3597 /* Change the callframe id, invalidating var lookup caching */
3598 JimChangeCallFrameId(interp
, interp
->framePtr
);
3603 /* ---------- Dict syntax sugar (similar to array Tcl syntax) -------------- */
3605 /* Given a variable name for [dict] operation syntax sugar,
3606 * this function returns two objects, the first with the name
3607 * of the variable to set, and the second with the rispective key.
3608 * For example "foo(bar)" will return objects with string repr. of
3611 * The returned objects have refcount = 1. The function can't fail. */
3612 static void JimDictSugarParseVarKey(Jim_Interp
*interp
, Jim_Obj
*objPtr
,
3613 Jim_Obj
**varPtrPtr
, Jim_Obj
**keyPtrPtr
)
3615 const char *str
, *p
;
3617 int len
, keyLen
, nameLen
;
3618 Jim_Obj
*varObjPtr
, *keyObjPtr
;
3620 str
= Jim_GetString(objPtr
, &len
);
3621 p
= strchr(str
, '(');
3623 keyLen
= len
-((p
-str
)+1);
3624 nameLen
= (p
-str
)-1;
3625 /* Create the objects with the variable name and key. */
3626 t
= Jim_Alloc(nameLen
+1);
3627 memcpy(t
, str
, nameLen
);
3629 varObjPtr
= Jim_NewStringObjNoAlloc(interp
, t
, nameLen
);
3631 t
= Jim_Alloc(keyLen
+1);
3632 memcpy(t
, p
, keyLen
);
3634 keyObjPtr
= Jim_NewStringObjNoAlloc(interp
, t
, keyLen
);
3636 Jim_IncrRefCount(varObjPtr
);
3637 Jim_IncrRefCount(keyObjPtr
);
3638 *varPtrPtr
= varObjPtr
;
3639 *keyPtrPtr
= keyObjPtr
;
3642 /* Helper of Jim_SetVariable() to deal with dict-syntax variable names.
3643 * Also used by Jim_UnsetVariable() with valObjPtr = NULL. */
3644 static int JimDictSugarSet(Jim_Interp
*interp
, Jim_Obj
*objPtr
,
3647 Jim_Obj
*varObjPtr
, *keyObjPtr
;
3650 JimDictSugarParseVarKey(interp
, objPtr
, &varObjPtr
, &keyObjPtr
);
3651 err
= Jim_SetDictKeysVector(interp
, varObjPtr
, &keyObjPtr
, 1,
3653 Jim_DecrRefCount(interp
, varObjPtr
);
3654 Jim_DecrRefCount(interp
, keyObjPtr
);
3658 /* Helper of Jim_GetVariable() to deal with dict-syntax variable names */
3659 static Jim_Obj
*JimDictSugarGet(Jim_Interp
*interp
, Jim_Obj
*objPtr
)
3661 Jim_Obj
*varObjPtr
, *keyObjPtr
, *dictObjPtr
, *resObjPtr
;
3663 JimDictSugarParseVarKey(interp
, objPtr
, &varObjPtr
, &keyObjPtr
);
3664 dictObjPtr
= Jim_GetVariable(interp
, varObjPtr
, JIM_ERRMSG
);
3669 if (Jim_DictKey(interp
, dictObjPtr
, keyObjPtr
, &resObjPtr
, JIM_ERRMSG
)
3674 Jim_DecrRefCount(interp
, varObjPtr
);
3675 Jim_DecrRefCount(interp
, keyObjPtr
);
3679 /* --------- $var(INDEX) substitution, using a specialized object ----------- */
3681 static void FreeDictSubstInternalRep(Jim_Interp
*interp
, Jim_Obj
*objPtr
);
3682 static void DupDictSubstInternalRep(Jim_Interp
*interp
, Jim_Obj
*srcPtr
,
3685 static Jim_ObjType dictSubstObjType
= {
3686 "dict-substitution",
3687 FreeDictSubstInternalRep
,
3688 DupDictSubstInternalRep
,
3693 void FreeDictSubstInternalRep(Jim_Interp
*interp
, Jim_Obj
*objPtr
)
3695 Jim_DecrRefCount(interp
, objPtr
->internalRep
.dictSubstValue
.varNameObjPtr
);
3696 Jim_DecrRefCount(interp
, objPtr
->internalRep
.dictSubstValue
.indexObjPtr
);
3699 void DupDictSubstInternalRep(Jim_Interp
*interp
, Jim_Obj
*srcPtr
,
3702 JIM_NOTUSED(interp
);
3704 dupPtr
->internalRep
.dictSubstValue
.varNameObjPtr
=
3705 srcPtr
->internalRep
.dictSubstValue
.varNameObjPtr
;
3706 dupPtr
->internalRep
.dictSubstValue
.indexObjPtr
=
3707 srcPtr
->internalRep
.dictSubstValue
.indexObjPtr
;
3708 dupPtr
->typePtr
= &dictSubstObjType
;
3711 /* This function is used to expand [dict get] sugar in the form
3712 * of $var(INDEX). The function is mainly used by Jim_EvalObj()
3713 * to deal with tokens of type JIM_TT_DICTSUGAR. objPtr points to an
3714 * object that is *guaranteed* to be in the form VARNAME(INDEX).
3715 * The 'index' part is [subst]ituted, and is used to lookup a key inside
3716 * the [dict]ionary contained in variable VARNAME. */
3717 Jim_Obj
*Jim_ExpandDictSugar(Jim_Interp
*interp
, Jim_Obj
*objPtr
)
3719 Jim_Obj
*varObjPtr
, *keyObjPtr
, *dictObjPtr
, *resObjPtr
;
3720 Jim_Obj
*substKeyObjPtr
= NULL
;
3722 if (objPtr
->typePtr
!= &dictSubstObjType
) {
3723 JimDictSugarParseVarKey(interp
, objPtr
, &varObjPtr
, &keyObjPtr
);
3724 Jim_FreeIntRep(interp
, objPtr
);
3725 objPtr
->typePtr
= &dictSubstObjType
;
3726 objPtr
->internalRep
.dictSubstValue
.varNameObjPtr
= varObjPtr
;
3727 objPtr
->internalRep
.dictSubstValue
.indexObjPtr
= keyObjPtr
;
3729 if (Jim_SubstObj(interp
, objPtr
->internalRep
.dictSubstValue
.indexObjPtr
,
3730 &substKeyObjPtr
, JIM_NONE
)
3732 substKeyObjPtr
= NULL
;
3735 Jim_IncrRefCount(substKeyObjPtr
);
3736 dictObjPtr
= Jim_GetVariable(interp
,
3737 objPtr
->internalRep
.dictSubstValue
.varNameObjPtr
, JIM_ERRMSG
);
3742 if (Jim_DictKey(interp
, dictObjPtr
, substKeyObjPtr
, &resObjPtr
, JIM_ERRMSG
)
3748 if (substKeyObjPtr
) Jim_DecrRefCount(interp
, substKeyObjPtr
);
3752 /* -----------------------------------------------------------------------------
3754 * ---------------------------------------------------------------------------*/
3756 static Jim_CallFrame
*JimCreateCallFrame(Jim_Interp
*interp
)
3759 if (interp
->freeFramesList
) {
3760 cf
= interp
->freeFramesList
;
3761 interp
->freeFramesList
= cf
->nextFramePtr
;
3763 cf
= Jim_Alloc(sizeof(*cf
));
3764 cf
->vars
.table
= NULL
;
3767 cf
->id
= interp
->callFrameEpoch
++;
3768 cf
->parentCallFrame
= NULL
;
3771 cf
->procArgsObjPtr
= NULL
;
3772 cf
->procBodyObjPtr
= NULL
;
3773 cf
->nextFramePtr
= NULL
;
3774 cf
->staticVars
= NULL
;
3775 if (cf
->vars
.table
== NULL
)
3776 Jim_InitHashTable(&cf
->vars
, &JimVariablesHashTableType
, interp
);
3780 /* Used to invalidate every caching related to callframe stability. */
3781 static void JimChangeCallFrameId(Jim_Interp
*interp
, Jim_CallFrame
*cf
)
3783 cf
->id
= interp
->callFrameEpoch
++;
3786 #define JIM_FCF_NONE 0 /* no flags */
3787 #define JIM_FCF_NOHT 1 /* don't free the hash table */
3788 static void JimFreeCallFrame(Jim_Interp
*interp
, Jim_CallFrame
*cf
,
3791 if (cf
->procArgsObjPtr
) Jim_DecrRefCount(interp
, cf
->procArgsObjPtr
);
3792 if (cf
->procBodyObjPtr
) Jim_DecrRefCount(interp
, cf
->procBodyObjPtr
);
3793 if (!(flags
& JIM_FCF_NOHT
))
3794 Jim_FreeHashTable(&cf
->vars
);
3797 Jim_HashEntry
**table
= cf
->vars
.table
, *he
;
3799 for (i
= 0; i
< JIM_HT_INITIAL_SIZE
; i
++) {
3801 while (he
!= NULL
) {
3802 Jim_HashEntry
*nextEntry
= he
->next
;
3803 Jim_Var
*varPtr
= (void*) he
->val
;
3805 Jim_DecrRefCount(interp
, varPtr
->objPtr
);
3807 Jim_Free((void*)he
->key
); /* ATTENTION: const cast */
3815 cf
->nextFramePtr
= interp
->freeFramesList
;
3816 interp
->freeFramesList
= cf
;
3819 /* -----------------------------------------------------------------------------
3821 * ---------------------------------------------------------------------------*/
3823 /* References HashTable Type.
3825 * Keys are jim_wide integers, dynamically allocated for now but in the
3826 * future it's worth to cache this 8 bytes objects. Values are poitners
3827 * to Jim_References. */
3828 static void JimReferencesHTValDestructor(void *interp
, void *val
)
3830 Jim_Reference
*refPtr
= (void*) val
;
3832 Jim_DecrRefCount(interp
, refPtr
->objPtr
);
3833 if (refPtr
->finalizerCmdNamePtr
!= NULL
) {
3834 Jim_DecrRefCount(interp
, refPtr
->finalizerCmdNamePtr
);
3839 unsigned int JimReferencesHTHashFunction(const void *key
)
3841 /* Only the least significant bits are used. */
3842 const jim_wide
*widePtr
= key
;
3843 unsigned int intValue
= (unsigned int) *widePtr
;
3844 return Jim_IntHashFunction(intValue
);
3847 unsigned int JimReferencesHTDoubleHashFunction(const void *key
)
3849 /* Only the least significant bits are used. */
3850 const jim_wide
*widePtr
= key
;
3851 unsigned int intValue
= (unsigned int) *widePtr
;
3852 return intValue
; /* identity function. */
3855 const void *JimReferencesHTKeyDup(void *privdata
, const void *key
)
3857 void *copy
= Jim_Alloc(sizeof(jim_wide
));
3858 JIM_NOTUSED(privdata
);
3860 memcpy(copy
, key
, sizeof(jim_wide
));
3864 int JimReferencesHTKeyCompare(void *privdata
, const void *key1
,
3867 JIM_NOTUSED(privdata
);
3869 return memcmp(key1
, key2
, sizeof(jim_wide
)) == 0;
3872 void JimReferencesHTKeyDestructor(void *privdata
, const void *key
)
3874 JIM_NOTUSED(privdata
);
3876 Jim_Free((void*)key
);
3879 static Jim_HashTableType JimReferencesHashTableType
= {
3880 JimReferencesHTHashFunction
, /* hash function */
3881 JimReferencesHTKeyDup
, /* key dup */
3883 JimReferencesHTKeyCompare
, /* key compare */
3884 JimReferencesHTKeyDestructor
, /* key destructor */
3885 JimReferencesHTValDestructor
/* val destructor */
3888 /* -----------------------------------------------------------------------------
3889 * Reference object type and References API
3890 * ---------------------------------------------------------------------------*/
3892 static void UpdateStringOfReference(struct Jim_Obj
*objPtr
);
3894 static Jim_ObjType referenceObjType
= {
3898 UpdateStringOfReference
,
3899 JIM_TYPE_REFERENCES
,
3902 void UpdateStringOfReference(struct Jim_Obj
*objPtr
)
3905 char buf
[JIM_REFERENCE_SPACE
+1];
3906 Jim_Reference
*refPtr
;
3908 refPtr
= objPtr
->internalRep
.refValue
.refPtr
;
3909 len
= JimFormatReference(buf
, refPtr
, objPtr
->internalRep
.refValue
.id
);
3910 objPtr
->bytes
= Jim_Alloc(len
+1);
3911 memcpy(objPtr
->bytes
, buf
, len
+1);
3912 objPtr
->length
= len
;
3915 /* returns true if 'c' is a valid reference tag character.
3916 * i.e. inside the range [_a-zA-Z0-9] */
3917 static int isrefchar(int c
)
3919 if (c
== '_' || (c
>= 'a' && c
<= 'z') || (c
>= 'A' && c
<= 'Z') ||
3920 (c
>= '0' && c
<= '9')) return 1;
3924 int SetReferenceFromAny(Jim_Interp
*interp
, Jim_Obj
*objPtr
)
3928 const char *str
, *start
, *end
;
3930 Jim_Reference
*refPtr
;
3933 /* Get the string representation */
3934 str
= Jim_GetString(objPtr
, &len
);
3935 /* Check if it looks like a reference */
3936 if (len
< JIM_REFERENCE_SPACE
) goto badformat
;
3940 while (*start
== ' ') start
++;
3941 while (*end
== ' ' && end
> start
) end
--;
3942 if (end
-start
+1 != JIM_REFERENCE_SPACE
) goto badformat
;
3943 /* <reference.<1234567>.%020> */
3944 if (memcmp(start
, "<reference.<", 12) != 0) goto badformat
;
3945 if (start
[12+JIM_REFERENCE_TAGLEN
] != '>' || end
[0] != '>') goto badformat
;
3946 /* The tag can't contain chars other than a-zA-Z0-9 + '_'. */
3947 for (i
= 0; i
< JIM_REFERENCE_TAGLEN
; i
++) {
3948 if (!isrefchar(start
[12+i
])) goto badformat
;
3950 /* Extract info from the refernece. */
3951 memcpy(refId
, start
+14+JIM_REFERENCE_TAGLEN
, 20);
3953 /* Try to convert the ID into a jim_wide */
3954 if (Jim_StringToWide(refId
, &wideValue
, 10) != JIM_OK
) goto badformat
;
3955 /* Check if the reference really exists! */
3956 he
= Jim_FindHashEntry(&interp
->references
, &wideValue
);
3958 Jim_SetResult(interp
, Jim_NewEmptyStringObj(interp
));
3959 Jim_AppendStrings(interp
, Jim_GetResult(interp
),
3960 "Invalid reference ID \"", str
, "\"", NULL
);
3964 /* Free the old internal repr and set the new one. */
3965 Jim_FreeIntRep(interp
, objPtr
);
3966 objPtr
->typePtr
= &referenceObjType
;
3967 objPtr
->internalRep
.refValue
.id
= wideValue
;
3968 objPtr
->internalRep
.refValue
.refPtr
= refPtr
;
3972 Jim_SetResult(interp
, Jim_NewEmptyStringObj(interp
));
3973 Jim_AppendStrings(interp
, Jim_GetResult(interp
),
3974 "expected reference but got \"", str
, "\"", NULL
);
3978 /* Returns a new reference pointing to objPtr, having cmdNamePtr
3979 * as finalizer command (or NULL if there is no finalizer).
3980 * The returned reference object has refcount = 0. */
3981 Jim_Obj
*Jim_NewReference(Jim_Interp
*interp
, Jim_Obj
*objPtr
, Jim_Obj
*tagPtr
,
3982 Jim_Obj
*cmdNamePtr
)
3984 struct Jim_Reference
*refPtr
;
3985 jim_wide wideValue
= interp
->referenceNextId
;
3990 /* Perform the Garbage Collection if needed. */
3991 Jim_CollectIfNeeded(interp
);
3993 refPtr
= Jim_Alloc(sizeof(*refPtr
));
3994 refPtr
->objPtr
= objPtr
;
3995 Jim_IncrRefCount(objPtr
);
3996 refPtr
->finalizerCmdNamePtr
= cmdNamePtr
;
3998 Jim_IncrRefCount(cmdNamePtr
);
3999 Jim_AddHashEntry(&interp
->references
, &wideValue
, refPtr
);
4000 refObjPtr
= Jim_NewObj(interp
);
4001 refObjPtr
->typePtr
= &referenceObjType
;
4002 refObjPtr
->bytes
= NULL
;
4003 refObjPtr
->internalRep
.refValue
.id
= interp
->referenceNextId
;
4004 refObjPtr
->internalRep
.refValue
.refPtr
= refPtr
;
4005 interp
->referenceNextId
++;
4006 /* Set the tag. Trimmered at JIM_REFERENCE_TAGLEN. Everything
4007 * that does not pass the 'isrefchar' test is replaced with '_' */
4008 tag
= Jim_GetString(tagPtr
, &tagLen
);
4009 if (tagLen
> JIM_REFERENCE_TAGLEN
)
4010 tagLen
= JIM_REFERENCE_TAGLEN
;
4011 for (i
= 0; i
< JIM_REFERENCE_TAGLEN
; i
++) {
4013 refPtr
->tag
[i
] = tag
[i
];
4015 refPtr
->tag
[i
] = '_';
4017 refPtr
->tag
[JIM_REFERENCE_TAGLEN
] = '\0';
4021 Jim_Reference
*Jim_GetReference(Jim_Interp
*interp
, Jim_Obj
*objPtr
)
4023 if (objPtr
->typePtr
!= &referenceObjType
&&
4024 SetReferenceFromAny(interp
, objPtr
) == JIM_ERR
)
4026 return objPtr
->internalRep
.refValue
.refPtr
;
4029 int Jim_SetFinalizer(Jim_Interp
*interp
, Jim_Obj
*objPtr
, Jim_Obj
*cmdNamePtr
)
4031 Jim_Reference
*refPtr
;
4033 if ((refPtr
= Jim_GetReference(interp
, objPtr
)) == NULL
)
4035 Jim_IncrRefCount(cmdNamePtr
);
4036 if (refPtr
->finalizerCmdNamePtr
)
4037 Jim_DecrRefCount(interp
, refPtr
->finalizerCmdNamePtr
);
4038 refPtr
->finalizerCmdNamePtr
= cmdNamePtr
;
4042 int Jim_GetFinalizer(Jim_Interp
*interp
, Jim_Obj
*objPtr
, Jim_Obj
**cmdNamePtrPtr
)
4044 Jim_Reference
*refPtr
;
4046 if ((refPtr
= Jim_GetReference(interp
, objPtr
)) == NULL
)
4048 *cmdNamePtrPtr
= refPtr
->finalizerCmdNamePtr
;
4052 /* -----------------------------------------------------------------------------
4053 * References Garbage Collection
4054 * ---------------------------------------------------------------------------*/
4056 /* This the hash table type for the "MARK" phase of the GC */
4057 static Jim_HashTableType JimRefMarkHashTableType
= {
4058 JimReferencesHTHashFunction
, /* hash function */
4059 JimReferencesHTKeyDup
, /* key dup */
4061 JimReferencesHTKeyCompare
, /* key compare */
4062 JimReferencesHTKeyDestructor
, /* key destructor */
4063 NULL
/* val destructor */
4066 /* #define JIM_DEBUG_GC 1 */
4068 /* Performs the garbage collection. */
4069 int Jim_Collect(Jim_Interp
*interp
)
4071 Jim_HashTable marks
;
4072 Jim_HashTableIterator
*htiter
;
4077 /* Avoid recursive calls */
4078 if (interp
->lastCollectId
== -1) {
4079 /* Jim_Collect() already running. Return just now. */
4082 interp
->lastCollectId
= -1;
4084 /* Mark all the references found into the 'mark' hash table.
4085 * The references are searched in every live object that
4086 * is of a type that can contain references. */
4087 Jim_InitHashTable(&marks
, &JimRefMarkHashTableType
, NULL
);
4088 objPtr
= interp
->liveList
;
4090 if (objPtr
->typePtr
== NULL
||
4091 objPtr
->typePtr
->flags
& JIM_TYPE_REFERENCES
) {
4092 const char *str
, *p
;
4095 /* If the object is of type reference, to get the
4096 * Id is simple... */
4097 if (objPtr
->typePtr
== &referenceObjType
) {
4098 Jim_AddHashEntry(&marks
,
4099 &objPtr
->internalRep
.refValue
.id
, NULL
);
4101 Jim_fprintf(interp
,interp
->cookie_stdout
,
4102 "MARK (reference): %d refcount: %d" JIM_NL
,
4103 (int) objPtr
->internalRep
.refValue
.id
,
4106 objPtr
= objPtr
->nextObjPtr
;
4109 /* Get the string repr of the object we want
4110 * to scan for references. */
4111 p
= str
= Jim_GetString(objPtr
, &len
);
4112 /* Skip objects too little to contain references. */
4113 if (len
< JIM_REFERENCE_SPACE
) {
4114 objPtr
= objPtr
->nextObjPtr
;
4117 /* Extract references from the object string repr. */
4123 if ((p
= strstr(p
, "<reference.<")) == NULL
)
4125 /* Check if it's a valid reference. */
4126 if (len
-(p
-str
) < JIM_REFERENCE_SPACE
) break;
4127 if (p
[41] != '>' || p
[19] != '>' || p
[20] != '.') break;
4128 for (i
= 21; i
<= 40; i
++)
4129 if (!isdigit((int)p
[i
]))
4132 memcpy(buf
, p
+21, 20);
4134 Jim_StringToWide(buf
, &id
, 10);
4136 /* Ok, a reference for the given ID
4137 * was found. Mark it. */
4138 Jim_AddHashEntry(&marks
, &id
, NULL
);
4140 Jim_fprintf(interp
,interp
->cookie_stdout
,"MARK: %d" JIM_NL
, (int)id
);
4142 p
+= JIM_REFERENCE_SPACE
;
4145 objPtr
= objPtr
->nextObjPtr
;
4148 /* Run the references hash table to destroy every reference that
4149 * is not referenced outside (not present in the mark HT). */
4150 htiter
= Jim_GetHashTableIterator(&interp
->references
);
4151 while ((he
= Jim_NextHashEntry(htiter
)) != NULL
) {
4152 const jim_wide
*refId
;
4153 Jim_Reference
*refPtr
;
4156 /* Check if in the mark phase we encountered
4157 * this reference. */
4158 if (Jim_FindHashEntry(&marks
, refId
) == NULL
) {
4160 Jim_fprintf(interp
,interp
->cookie_stdout
,"COLLECTING %d" JIM_NL
, (int)*refId
);
4163 /* Drop the reference, but call the
4164 * finalizer first if registered. */
4166 if (refPtr
->finalizerCmdNamePtr
) {
4167 char *refstr
= Jim_Alloc(JIM_REFERENCE_SPACE
+1);
4168 Jim_Obj
*objv
[3], *oldResult
;
4170 JimFormatReference(refstr
, refPtr
, *refId
);
4172 objv
[0] = refPtr
->finalizerCmdNamePtr
;
4173 objv
[1] = Jim_NewStringObjNoAlloc(interp
,
4175 objv
[2] = refPtr
->objPtr
;
4176 Jim_IncrRefCount(objv
[0]);
4177 Jim_IncrRefCount(objv
[1]);
4178 Jim_IncrRefCount(objv
[2]);
4180 /* Drop the reference itself */
4181 Jim_DeleteHashEntry(&interp
->references
, refId
);
4183 /* Call the finalizer. Errors ignored. */
4184 oldResult
= interp
->result
;
4185 Jim_IncrRefCount(oldResult
);
4186 Jim_EvalObjVector(interp
, 3, objv
);
4187 Jim_SetResult(interp
, oldResult
);
4188 Jim_DecrRefCount(interp
, oldResult
);
4190 Jim_DecrRefCount(interp
, objv
[0]);
4191 Jim_DecrRefCount(interp
, objv
[1]);
4192 Jim_DecrRefCount(interp
, objv
[2]);
4194 Jim_DeleteHashEntry(&interp
->references
, refId
);
4198 Jim_FreeHashTableIterator(htiter
);
4199 Jim_FreeHashTable(&marks
);
4200 interp
->lastCollectId
= interp
->referenceNextId
;
4201 interp
->lastCollectTime
= time(NULL
);
4205 #define JIM_COLLECT_ID_PERIOD 5000
4206 #define JIM_COLLECT_TIME_PERIOD 300
4208 void Jim_CollectIfNeeded(Jim_Interp
*interp
)
4213 elapsedId
= interp
->referenceNextId
- interp
->lastCollectId
;
4214 elapsedTime
= time(NULL
) - interp
->lastCollectTime
;
4217 if (elapsedId
> JIM_COLLECT_ID_PERIOD
||
4218 elapsedTime
> JIM_COLLECT_TIME_PERIOD
) {
4219 Jim_Collect(interp
);
4223 /* -----------------------------------------------------------------------------
4224 * Interpreter related functions
4225 * ---------------------------------------------------------------------------*/
4227 Jim_Interp
*Jim_CreateInterp(void)
4229 Jim_Interp
*i
= Jim_Alloc(sizeof(*i
));
4233 i
->errorFileName
= Jim_StrDup("");
4235 i
->maxNestingDepth
= JIM_MAX_NESTING_DEPTH
;
4236 i
->returnCode
= JIM_OK
;
4239 i
->callFrameEpoch
= 0;
4240 i
->liveList
= i
->freeList
= NULL
;
4241 i
->scriptFileName
= Jim_StrDup("");
4242 i
->referenceNextId
= 0;
4243 i
->lastCollectId
= 0;
4244 i
->lastCollectTime
= time(NULL
);
4245 i
->freeFramesList
= NULL
;
4246 i
->prngState
= NULL
;
4247 i
->evalRetcodeLevel
= -1;
4248 i
->cookie_stdin
= stdin
;
4249 i
->cookie_stdout
= stdout
;
4250 i
->cookie_stderr
= stderr
;
4251 i
->cb_fwrite
= ((size_t (*)( const void *, size_t, size_t, void *))(fwrite
));
4252 i
->cb_fread
= ((size_t (*)( void *, size_t, size_t, void *))(fread
));
4253 i
->cb_vfprintf
= ((int (*)( void *, const char *fmt
, va_list ))(vfprintf
));
4254 i
->cb_fflush
= ((int (*)( void *))(fflush
));
4255 i
->cb_fgets
= ((char * (*)( char *, int, void *))(fgets
));
4257 /* Note that we can create objects only after the
4258 * interpreter liveList and freeList pointers are
4259 * initialized to NULL. */
4260 Jim_InitHashTable(&i
->commands
, &JimCommandsHashTableType
, i
);
4261 Jim_InitHashTable(&i
->references
, &JimReferencesHashTableType
, i
);
4262 Jim_InitHashTable(&i
->sharedStrings
, &JimSharedStringsHashTableType
,
4264 Jim_InitHashTable(&i
->stub
, &JimStringCopyHashTableType
, NULL
);
4265 Jim_InitHashTable(&i
->assocData
, &JimAssocDataHashTableType
, i
);
4266 Jim_InitHashTable(&i
->packages
, &JimStringKeyValCopyHashTableType
, NULL
);
4267 i
->framePtr
= i
->topFramePtr
= JimCreateCallFrame(i
);
4268 i
->emptyObj
= Jim_NewEmptyStringObj(i
);
4269 i
->result
= i
->emptyObj
;
4270 i
->stackTrace
= Jim_NewListObj(i
, NULL
, 0);
4271 i
->unknown
= Jim_NewStringObj(i
, "unknown", -1);
4272 Jim_IncrRefCount(i
->emptyObj
);
4273 Jim_IncrRefCount(i
->result
);
4274 Jim_IncrRefCount(i
->stackTrace
);
4275 Jim_IncrRefCount(i
->unknown
);
4277 /* Initialize key variables every interpreter should contain */
4278 pathPtr
= Jim_NewStringObj(i
, "./", -1);
4279 Jim_SetVariableStr(i
, "jim_libpath", pathPtr
);
4280 Jim_SetVariableStrWithStr(i
, "jim_interactive", "0");
4282 /* Export the core API to extensions */
4283 JimRegisterCoreApi(i
);
4287 /* This is the only function Jim exports directly without
4288 * to use the STUB system. It is only used by embedders
4289 * in order to get an interpreter with the Jim API pointers
4291 Jim_Interp
*ExportedJimCreateInterp(void)
4293 return Jim_CreateInterp();
4296 void Jim_FreeInterp(Jim_Interp
*i
)
4298 Jim_CallFrame
*cf
= i
->framePtr
, *prevcf
, *nextcf
;
4299 Jim_Obj
*objPtr
, *nextObjPtr
;
4301 Jim_DecrRefCount(i
, i
->emptyObj
);
4302 Jim_DecrRefCount(i
, i
->result
);
4303 Jim_DecrRefCount(i
, i
->stackTrace
);
4304 Jim_DecrRefCount(i
, i
->unknown
);
4305 Jim_Free((void*)i
->errorFileName
);
4306 Jim_Free((void*)i
->scriptFileName
);
4307 Jim_FreeHashTable(&i
->commands
);
4308 Jim_FreeHashTable(&i
->references
);
4309 Jim_FreeHashTable(&i
->stub
);
4310 Jim_FreeHashTable(&i
->assocData
);
4311 Jim_FreeHashTable(&i
->packages
);
4312 Jim_Free(i
->prngState
);
4313 /* Free the call frames list */
4315 prevcf
= cf
->parentCallFrame
;
4316 JimFreeCallFrame(i
, cf
, JIM_FCF_NONE
);
4319 /* Check that the live object list is empty, otherwise
4320 * there is a memory leak. */
4321 if (i
->liveList
!= NULL
) {
4322 Jim_Obj
*objPtr
= i
->liveList
;
4324 Jim_fprintf( i
, i
->cookie_stdout
,JIM_NL
"-------------------------------------" JIM_NL
);
4325 Jim_fprintf( i
, i
->cookie_stdout
,"Objects still in the free list:" JIM_NL
);
4327 const char *type
= objPtr
->typePtr
?
4328 objPtr
->typePtr
->name
: "";
4329 Jim_fprintf( i
, i
->cookie_stdout
,"%p \"%-10s\": '%.20s' (refCount: %d)" JIM_NL
,
4331 objPtr
->bytes
? objPtr
->bytes
4332 : "(null)", objPtr
->refCount
);
4333 if (objPtr
->typePtr
== &sourceObjType
) {
4334 Jim_fprintf( i
, i
->cookie_stdout
, "FILE %s LINE %d" JIM_NL
,
4335 objPtr
->internalRep
.sourceValue
.fileName
,
4336 objPtr
->internalRep
.sourceValue
.lineNumber
);
4338 objPtr
= objPtr
->nextObjPtr
;
4340 Jim_fprintf( i
, i
->cookie_stdout
, "-------------------------------------" JIM_NL JIM_NL
);
4341 Jim_Panic(i
,"Live list non empty freeing the interpreter! Leak?");
4343 /* Free all the freed objects. */
4344 objPtr
= i
->freeList
;
4346 nextObjPtr
= objPtr
->nextObjPtr
;
4348 objPtr
= nextObjPtr
;
4350 /* Free cached CallFrame structures */
4351 cf
= i
->freeFramesList
;
4353 nextcf
= cf
->nextFramePtr
;
4354 if (cf
->vars
.table
!= NULL
)
4355 Jim_Free(cf
->vars
.table
);
4359 /* Free the sharedString hash table. Make sure to free it
4360 * after every other Jim_Object was freed. */
4361 Jim_FreeHashTable(&i
->sharedStrings
);
4362 /* Free the interpreter structure. */
4366 /* Store the call frame relative to the level represented by
4367 * levelObjPtr into *framePtrPtr. If levelObjPtr == NULL, the
4368 * level is assumed to be '1'.
4370 * If a newLevelptr int pointer is specified, the function stores
4371 * the absolute level integer value of the new target callframe into
4372 * *newLevelPtr. (this is used to adjust interp->numLevels
4373 * in the implementation of [uplevel], so that [info level] will
4374 * return a correct information).
4376 * This function accepts the 'level' argument in the form
4377 * of the commands [uplevel] and [upvar].
4379 * For a function accepting a relative integer as level suitable
4380 * for implementation of [info level ?level?] check the
4381 * GetCallFrameByInteger() function. */
4382 int Jim_GetCallFrameByLevel(Jim_Interp
*interp
, Jim_Obj
*levelObjPtr
,
4383 Jim_CallFrame
**framePtrPtr
, int *newLevelPtr
)
4387 Jim_CallFrame
*framePtr
;
4389 if (newLevelPtr
) *newLevelPtr
= interp
->numLevels
;
4391 str
= Jim_GetString(levelObjPtr
, NULL
);
4392 if (str
[0] == '#') {
4394 /* speedup for the toplevel (level #0) */
4395 if (str
[1] == '0' && str
[2] == '\0') {
4396 if (newLevelPtr
) *newLevelPtr
= 0;
4397 *framePtrPtr
= interp
->topFramePtr
;
4401 level
= strtol(str
+1, &endptr
, 0);
4402 if (str
[1] == '\0' || endptr
[0] != '\0' || level
< 0)
4404 /* An 'absolute' level is converted into the
4405 * 'number of levels to go back' format. */
4406 level
= interp
->numLevels
- level
;
4407 if (level
< 0) goto badlevel
;
4409 if (Jim_GetLong(interp
, levelObjPtr
, &level
) != JIM_OK
|| level
< 0)
4413 str
= "1"; /* Needed to format the error message. */
4417 framePtr
= interp
->framePtr
;
4418 if (newLevelPtr
) *newLevelPtr
= (*newLevelPtr
)-level
;
4420 framePtr
= framePtr
->parentCallFrame
;
4421 if (framePtr
== NULL
) goto badlevel
;
4423 *framePtrPtr
= framePtr
;
4426 Jim_SetResult(interp
, Jim_NewEmptyStringObj(interp
));
4427 Jim_AppendStrings(interp
, Jim_GetResult(interp
),
4428 "bad level \"", str
, "\"", NULL
);
4432 /* Similar to Jim_GetCallFrameByLevel() but the level is specified
4433 * as a relative integer like in the [info level ?level?] command. */
4434 static int JimGetCallFrameByInteger(Jim_Interp
*interp
, Jim_Obj
*levelObjPtr
,
4435 Jim_CallFrame
**framePtrPtr
)
4438 jim_wide relLevel
; /* level relative to the current one. */
4439 Jim_CallFrame
*framePtr
;
4441 if (Jim_GetWide(interp
, levelObjPtr
, &level
) != JIM_OK
)
4444 /* An 'absolute' level is converted into the
4445 * 'number of levels to go back' format. */
4446 relLevel
= interp
->numLevels
- level
;
4451 framePtr
= interp
->framePtr
;
4452 while (relLevel
--) {
4453 framePtr
= framePtr
->parentCallFrame
;
4454 if (framePtr
== NULL
) goto badlevel
;
4456 *framePtrPtr
= framePtr
;
4459 Jim_SetResult(interp
, Jim_NewEmptyStringObj(interp
));
4460 Jim_AppendStrings(interp
, Jim_GetResult(interp
),
4461 "bad level \"", Jim_GetString(levelObjPtr
, NULL
), "\"", NULL
);
4465 static void JimSetErrorFileName(Jim_Interp
*interp
, char *filename
)
4467 Jim_Free((void*)interp
->errorFileName
);
4468 interp
->errorFileName
= Jim_StrDup(filename
);
4471 static void JimSetErrorLineNumber(Jim_Interp
*interp
, int linenr
)
4473 interp
->errorLine
= linenr
;
4476 static void JimResetStackTrace(Jim_Interp
*interp
)
4478 Jim_DecrRefCount(interp
, interp
->stackTrace
);
4479 interp
->stackTrace
= Jim_NewListObj(interp
, NULL
, 0);
4480 Jim_IncrRefCount(interp
->stackTrace
);
4483 static void JimAppendStackTrace(Jim_Interp
*interp
, const char *procname
,
4484 const char *filename
, int linenr
)
4486 if (Jim_IsShared(interp
->stackTrace
)) {
4487 interp
->stackTrace
=
4488 Jim_DuplicateObj(interp
, interp
->stackTrace
);
4489 Jim_IncrRefCount(interp
->stackTrace
);
4491 Jim_ListAppendElement(interp
, interp
->stackTrace
,
4492 Jim_NewStringObj(interp
, procname
, -1));
4493 Jim_ListAppendElement(interp
, interp
->stackTrace
,
4494 Jim_NewStringObj(interp
, filename
, -1));
4495 Jim_ListAppendElement(interp
, interp
->stackTrace
,
4496 Jim_NewIntObj(interp
, linenr
));
4499 int Jim_SetAssocData(Jim_Interp
*interp
, const char *key
, Jim_InterpDeleteProc
*delProc
, void *data
)
4501 AssocDataValue
*assocEntryPtr
= (AssocDataValue
*)Jim_Alloc(sizeof(AssocDataValue
));
4502 assocEntryPtr
->delProc
= delProc
;
4503 assocEntryPtr
->data
= data
;
4504 return Jim_AddHashEntry(&interp
->assocData
, key
, assocEntryPtr
);
4507 void *Jim_GetAssocData(Jim_Interp
*interp
, const char *key
)
4509 Jim_HashEntry
*entryPtr
= Jim_FindHashEntry(&interp
->assocData
, key
);
4510 if (entryPtr
!= NULL
) {
4511 AssocDataValue
*assocEntryPtr
= (AssocDataValue
*)entryPtr
->val
;
4512 return assocEntryPtr
->data
;
4517 int Jim_DeleteAssocData(Jim_Interp
*interp
, const char *key
)
4519 return Jim_DeleteHashEntry(&interp
->assocData
, key
);
4522 int Jim_GetExitCode(Jim_Interp
*interp
) {
4523 return interp
->exitCode
;
4526 void *Jim_SetStdin(Jim_Interp
*interp
, void *fp
)
4528 if (fp
!= NULL
) interp
->cookie_stdin
= fp
;
4529 return interp
->cookie_stdin
;
4532 void *Jim_SetStdout(Jim_Interp
*interp
, void *fp
)
4534 if (fp
!= NULL
) interp
->cookie_stdout
= fp
;
4535 return interp
->cookie_stdout
;
4538 void *Jim_SetStderr(Jim_Interp
*interp
, void *fp
)
4540 if (fp
!= NULL
) interp
->cookie_stderr
= fp
;
4541 return interp
->cookie_stderr
;
4544 /* -----------------------------------------------------------------------------
4546 * Every interpreter has an hash table where to put shared dynamically
4547 * allocate strings that are likely to be used a lot of times.
4548 * For example, in the 'source' object type, there is a pointer to
4549 * the filename associated with that object. Every script has a lot
4550 * of this objects with the identical file name, so it is wise to share
4553 * The API is trivial: Jim_GetSharedString(interp, "foobar")
4554 * returns the pointer to the shared string. Every time a reference
4555 * to the string is no longer used, the user should call
4556 * Jim_ReleaseSharedString(interp, stringPointer). Once no one is using
4557 * a given string, it is removed from the hash table.
4558 * ---------------------------------------------------------------------------*/
4559 const char *Jim_GetSharedString(Jim_Interp
*interp
, const char *str
)
4561 Jim_HashEntry
*he
= Jim_FindHashEntry(&interp
->sharedStrings
, str
);
4564 char *strCopy
= Jim_StrDup(str
);
4566 Jim_AddHashEntry(&interp
->sharedStrings
, strCopy
, (void*)1);
4569 long refCount
= (long) he
->val
;
4572 he
->val
= (void*) refCount
;
4577 void Jim_ReleaseSharedString(Jim_Interp
*interp
, const char *str
)
4580 Jim_HashEntry
*he
= Jim_FindHashEntry(&interp
->sharedStrings
, str
);
4583 Jim_Panic(interp
,"Jim_ReleaseSharedString called with "
4584 "unknown shared string '%s'", str
);
4585 refCount
= (long) he
->val
;
4587 if (refCount
== 0) {
4588 Jim_DeleteHashEntry(&interp
->sharedStrings
, str
);
4590 he
->val
= (void*) refCount
;
4594 /* -----------------------------------------------------------------------------
4596 * ---------------------------------------------------------------------------*/
4597 #define JIM_INTEGER_SPACE 24
4599 static void UpdateStringOfInt(struct Jim_Obj
*objPtr
);
4600 static int SetIntFromAny(Jim_Interp
*interp
, Jim_Obj
*objPtr
, int flags
);
4602 static Jim_ObjType intObjType
= {
4610 void UpdateStringOfInt(struct Jim_Obj
*objPtr
)
4613 char buf
[JIM_INTEGER_SPACE
+1];
4615 len
= Jim_WideToString(buf
, objPtr
->internalRep
.wideValue
);
4616 objPtr
->bytes
= Jim_Alloc(len
+1);
4617 memcpy(objPtr
->bytes
, buf
, len
+1);
4618 objPtr
->length
= len
;
4621 int SetIntFromAny(Jim_Interp
*interp
, Jim_Obj
*objPtr
, int flags
)
4626 /* Get the string representation */
4627 str
= Jim_GetString(objPtr
, NULL
);
4628 /* Try to convert into a jim_wide */
4629 if (Jim_StringToWide(str
, &wideValue
, 0) != JIM_OK
) {
4630 if (flags
& JIM_ERRMSG
) {
4631 Jim_SetResult(interp
, Jim_NewEmptyStringObj(interp
));
4632 Jim_AppendStrings(interp
, Jim_GetResult(interp
),
4633 "expected integer but got \"", str
, "\"", NULL
);
4637 if ((wideValue
== JIM_WIDE_MIN
|| wideValue
== JIM_WIDE_MAX
) &&
4639 Jim_SetResultString(interp
,
4640 "Integer value too big to be represented", -1);
4643 /* Free the old internal repr and set the new one. */
4644 Jim_FreeIntRep(interp
, objPtr
);
4645 objPtr
->typePtr
= &intObjType
;
4646 objPtr
->internalRep
.wideValue
= wideValue
;
4650 int Jim_GetWide(Jim_Interp
*interp
, Jim_Obj
*objPtr
, jim_wide
*widePtr
)
4652 if (objPtr
->typePtr
!= &intObjType
&&
4653 SetIntFromAny(interp
, objPtr
, JIM_ERRMSG
) == JIM_ERR
)
4655 *widePtr
= objPtr
->internalRep
.wideValue
;
4659 /* Get a wide but does not set an error if the format is bad. */
4660 static int JimGetWideNoErr(Jim_Interp
*interp
, Jim_Obj
*objPtr
,
4663 if (objPtr
->typePtr
!= &intObjType
&&
4664 SetIntFromAny(interp
, objPtr
, JIM_NONE
) == JIM_ERR
)
4666 *widePtr
= objPtr
->internalRep
.wideValue
;
4670 int Jim_GetLong(Jim_Interp
*interp
, Jim_Obj
*objPtr
, long *longPtr
)
4675 retval
= Jim_GetWide(interp
, objPtr
, &wideValue
);
4676 if (retval
== JIM_OK
) {
4677 *longPtr
= (long) wideValue
;
4683 void Jim_SetWide(Jim_Interp
*interp
, Jim_Obj
*objPtr
, jim_wide wideValue
)
4685 if (Jim_IsShared(objPtr
))
4686 Jim_Panic(interp
,"Jim_SetWide called with shared object");
4687 if (objPtr
->typePtr
!= &intObjType
) {
4688 Jim_FreeIntRep(interp
, objPtr
);
4689 objPtr
->typePtr
= &intObjType
;
4691 Jim_InvalidateStringRep(objPtr
);
4692 objPtr
->internalRep
.wideValue
= wideValue
;
4695 Jim_Obj
*Jim_NewIntObj(Jim_Interp
*interp
, jim_wide wideValue
)
4699 objPtr
= Jim_NewObj(interp
);
4700 objPtr
->typePtr
= &intObjType
;
4701 objPtr
->bytes
= NULL
;
4702 objPtr
->internalRep
.wideValue
= wideValue
;
4706 /* -----------------------------------------------------------------------------
4708 * ---------------------------------------------------------------------------*/
4709 #define JIM_DOUBLE_SPACE 30
4711 static void UpdateStringOfDouble(struct Jim_Obj
*objPtr
);
4712 static int SetDoubleFromAny(Jim_Interp
*interp
, Jim_Obj
*objPtr
);
4714 static Jim_ObjType doubleObjType
= {
4718 UpdateStringOfDouble
,
4722 void UpdateStringOfDouble(struct Jim_Obj
*objPtr
)
4725 char buf
[JIM_DOUBLE_SPACE
+1];
4727 len
= Jim_DoubleToString(buf
, objPtr
->internalRep
.doubleValue
);
4728 objPtr
->bytes
= Jim_Alloc(len
+1);
4729 memcpy(objPtr
->bytes
, buf
, len
+1);
4730 objPtr
->length
= len
;
4733 int SetDoubleFromAny(Jim_Interp
*interp
, Jim_Obj
*objPtr
)
4738 /* Get the string representation */
4739 str
= Jim_GetString(objPtr
, NULL
);
4740 /* Try to convert into a double */
4741 if (Jim_StringToDouble(str
, &doubleValue
) != JIM_OK
) {
4742 Jim_SetResult(interp
, Jim_NewEmptyStringObj(interp
));
4743 Jim_AppendStrings(interp
, Jim_GetResult(interp
),
4744 "expected number but got '", str
, "'", NULL
);
4747 /* Free the old internal repr and set the new one. */
4748 Jim_FreeIntRep(interp
, objPtr
);
4749 objPtr
->typePtr
= &doubleObjType
;
4750 objPtr
->internalRep
.doubleValue
= doubleValue
;
4754 int Jim_GetDouble(Jim_Interp
*interp
, Jim_Obj
*objPtr
, double *doublePtr
)
4756 if (objPtr
->typePtr
!= &doubleObjType
&&
4757 SetDoubleFromAny(interp
, objPtr
) == JIM_ERR
)
4759 *doublePtr
= objPtr
->internalRep
.doubleValue
;
4763 void Jim_SetDouble(Jim_Interp
*interp
, Jim_Obj
*objPtr
, double doubleValue
)
4765 if (Jim_IsShared(objPtr
))
4766 Jim_Panic(interp
,"Jim_SetDouble called with shared object");
4767 if (objPtr
->typePtr
!= &doubleObjType
) {
4768 Jim_FreeIntRep(interp
, objPtr
);
4769 objPtr
->typePtr
= &doubleObjType
;
4771 Jim_InvalidateStringRep(objPtr
);
4772 objPtr
->internalRep
.doubleValue
= doubleValue
;
4775 Jim_Obj
*Jim_NewDoubleObj(Jim_Interp
*interp
, double doubleValue
)
4779 objPtr
= Jim_NewObj(interp
);
4780 objPtr
->typePtr
= &doubleObjType
;
4781 objPtr
->bytes
= NULL
;
4782 objPtr
->internalRep
.doubleValue
= doubleValue
;
4786 /* -----------------------------------------------------------------------------
4788 * ---------------------------------------------------------------------------*/
4789 static void ListAppendElement(Jim_Obj
*listPtr
, Jim_Obj
*objPtr
);
4790 static void FreeListInternalRep(Jim_Interp
*interp
, Jim_Obj
*objPtr
);
4791 static void DupListInternalRep(Jim_Interp
*interp
, Jim_Obj
*srcPtr
, Jim_Obj
*dupPtr
);
4792 static void UpdateStringOfList(struct Jim_Obj
*objPtr
);
4793 static int SetListFromAny(Jim_Interp
*interp
, struct Jim_Obj
*objPtr
);
4795 /* Note that while the elements of the list may contain references,
4796 * the list object itself can't. This basically means that the
4797 * list object string representation as a whole can't contain references
4798 * that are not presents in the single elements. */
4799 static Jim_ObjType listObjType
= {
4801 FreeListInternalRep
,
4807 void FreeListInternalRep(Jim_Interp
*interp
, Jim_Obj
*objPtr
)
4811 for (i
= 0; i
< objPtr
->internalRep
.listValue
.len
; i
++) {
4812 Jim_DecrRefCount(interp
, objPtr
->internalRep
.listValue
.ele
[i
]);
4814 Jim_Free(objPtr
->internalRep
.listValue
.ele
);
4817 void DupListInternalRep(Jim_Interp
*interp
, Jim_Obj
*srcPtr
, Jim_Obj
*dupPtr
)
4820 JIM_NOTUSED(interp
);
4822 dupPtr
->internalRep
.listValue
.len
= srcPtr
->internalRep
.listValue
.len
;
4823 dupPtr
->internalRep
.listValue
.maxLen
= srcPtr
->internalRep
.listValue
.maxLen
;
4824 dupPtr
->internalRep
.listValue
.ele
=
4825 Jim_Alloc(sizeof(Jim_Obj
*)*srcPtr
->internalRep
.listValue
.maxLen
);
4826 memcpy(dupPtr
->internalRep
.listValue
.ele
, srcPtr
->internalRep
.listValue
.ele
,
4827 sizeof(Jim_Obj
*)*srcPtr
->internalRep
.listValue
.len
);
4828 for (i
= 0; i
< dupPtr
->internalRep
.listValue
.len
; i
++) {
4829 Jim_IncrRefCount(dupPtr
->internalRep
.listValue
.ele
[i
]);
4831 dupPtr
->typePtr
= &listObjType
;
4834 /* The following function checks if a given string can be encoded
4835 * into a list element without any kind of quoting, surrounded by braces,
4836 * or using escapes to quote. */
4837 #define JIM_ELESTR_SIMPLE 0
4838 #define JIM_ELESTR_BRACE 1
4839 #define JIM_ELESTR_QUOTE 2
4840 static int ListElementQuotingType(const char *s
, int len
)
4842 int i
, level
, trySimple
= 1;
4844 /* Try with the SIMPLE case */
4845 if (len
== 0) return JIM_ELESTR_BRACE
;
4846 if (s
[0] == '"' || s
[0] == '{') {
4850 for (i
= 0; i
< len
; i
++) {
4870 return JIM_ELESTR_SIMPLE
;
4873 /* Test if it's possible to do with braces */
4874 if (s
[len
-1] == '\\' ||
4875 s
[len
-1] == ']') return JIM_ELESTR_QUOTE
;
4877 for (i
= 0; i
< len
; i
++) {
4879 case '{': level
++; break;
4881 if (level
< 0) return JIM_ELESTR_QUOTE
;
4885 return JIM_ELESTR_QUOTE
;
4887 if (s
[i
+1] != '\0') i
++;
4892 if (!trySimple
) return JIM_ELESTR_BRACE
;
4893 for (i
= 0; i
< len
; i
++) {
4907 return JIM_ELESTR_BRACE
;
4911 return JIM_ELESTR_SIMPLE
;
4913 return JIM_ELESTR_QUOTE
;
4916 /* Returns the malloc-ed representation of a string
4917 * using backslash to quote special chars. */
4918 char *BackslashQuoteString(const char *s
, int len
, int *qlenPtr
)
4920 char *q
= Jim_Alloc(len
*2+1), *p
;
4937 case '\n': *p
++ = '\\'; *p
++ = 'n'; s
++; break;
4938 case '\r': *p
++ = '\\'; *p
++ = 'r'; s
++; break;
4939 case '\t': *p
++ = '\\'; *p
++ = 't'; s
++; break;
4940 case '\f': *p
++ = '\\'; *p
++ = 'f'; s
++; break;
4941 case '\v': *p
++ = '\\'; *p
++ = 'v'; s
++; break;
4952 void UpdateStringOfList(struct Jim_Obj
*objPtr
)
4954 int i
, bufLen
, realLength
;
4958 Jim_Obj
**ele
= objPtr
->internalRep
.listValue
.ele
;
4960 /* (Over) Estimate the space needed. */
4961 quotingType
= Jim_Alloc(sizeof(int)*objPtr
->internalRep
.listValue
.len
+1);
4963 for (i
= 0; i
< objPtr
->internalRep
.listValue
.len
; i
++) {
4966 strRep
= Jim_GetString(ele
[i
], &len
);
4967 quotingType
[i
] = ListElementQuotingType(strRep
, len
);
4968 switch (quotingType
[i
]) {
4969 case JIM_ELESTR_SIMPLE
: bufLen
+= len
; break;
4970 case JIM_ELESTR_BRACE
: bufLen
+= len
+2; break;
4971 case JIM_ELESTR_QUOTE
: bufLen
+= len
*2; break;
4973 bufLen
++; /* elements separator. */
4977 /* Generate the string rep. */
4978 p
= objPtr
->bytes
= Jim_Alloc(bufLen
+1);
4980 for (i
= 0; i
< objPtr
->internalRep
.listValue
.len
; i
++) {
4982 const char *strRep
= Jim_GetString(ele
[i
], &len
);
4985 switch(quotingType
[i
]) {
4986 case JIM_ELESTR_SIMPLE
:
4987 memcpy(p
, strRep
, len
);
4991 case JIM_ELESTR_BRACE
:
4993 memcpy(p
, strRep
, len
);
4996 realLength
+= len
+2;
4998 case JIM_ELESTR_QUOTE
:
4999 q
= BackslashQuoteString(strRep
, len
, &qlen
);
5006 /* Add a separating space */
5007 if (i
+1 != objPtr
->internalRep
.listValue
.len
) {
5012 *p
= '\0'; /* nul term. */
5013 objPtr
->length
= realLength
;
5014 Jim_Free(quotingType
);
5017 int SetListFromAny(Jim_Interp
*interp
, struct Jim_Obj
*objPtr
)
5019 struct JimParserCtx parser
;
5023 /* Get the string representation */
5024 str
= Jim_GetString(objPtr
, &strLen
);
5026 /* Free the old internal repr just now and initialize the
5027 * new one just now. The string->list conversion can't fail. */
5028 Jim_FreeIntRep(interp
, objPtr
);
5029 objPtr
->typePtr
= &listObjType
;
5030 objPtr
->internalRep
.listValue
.len
= 0;
5031 objPtr
->internalRep
.listValue
.maxLen
= 0;
5032 objPtr
->internalRep
.listValue
.ele
= NULL
;
5034 /* Convert into a list */
5035 JimParserInit(&parser
, str
, strLen
, 1);
5036 while(!JimParserEof(&parser
)) {
5039 Jim_Obj
*elementPtr
;
5041 JimParseList(&parser
);
5042 if (JimParserTtype(&parser
) != JIM_TT_STR
&&
5043 JimParserTtype(&parser
) != JIM_TT_ESC
)
5045 token
= JimParserGetToken(&parser
, &tokenLen
, &type
, NULL
);
5046 elementPtr
= Jim_NewStringObjNoAlloc(interp
, token
, tokenLen
);
5047 ListAppendElement(objPtr
, elementPtr
);
5052 Jim_Obj
*Jim_NewListObj(Jim_Interp
*interp
, Jim_Obj
*const *elements
,
5058 objPtr
= Jim_NewObj(interp
);
5059 objPtr
->typePtr
= &listObjType
;
5060 objPtr
->bytes
= NULL
;
5061 objPtr
->internalRep
.listValue
.ele
= NULL
;
5062 objPtr
->internalRep
.listValue
.len
= 0;
5063 objPtr
->internalRep
.listValue
.maxLen
= 0;
5064 for (i
= 0; i
< len
; i
++) {
5065 ListAppendElement(objPtr
, elements
[i
]);
5070 /* Return a vector of Jim_Obj with the elements of a Jim list, and the
5071 * length of the vector. Note that the user of this function should make
5072 * sure that the list object can't shimmer while the vector returned
5073 * is in use, this vector is the one stored inside the internal representation
5074 * of the list object. This function is not exported, extensions should
5075 * always access to the List object elements using Jim_ListIndex(). */
5076 static void JimListGetElements(Jim_Interp
*interp
, Jim_Obj
*listObj
, int *argc
,
5079 Jim_ListLength(interp
, listObj
, argc
);
5080 assert(listObj
->typePtr
== &listObjType
);
5081 *listVec
= listObj
->internalRep
.listValue
.ele
;
5084 /* ListSortElements type values */
5085 enum {JIM_LSORT_ASCII
, JIM_LSORT_NOCASE
, JIM_LSORT_ASCII_DECR
,
5086 JIM_LSORT_NOCASE_DECR
};
5088 /* Sort the internal rep of a list. */
5089 static int ListSortString(Jim_Obj
**lhsObj
, Jim_Obj
**rhsObj
)
5091 return Jim_StringCompareObj(*lhsObj
, *rhsObj
, 0);
5094 static int ListSortStringDecr(Jim_Obj
**lhsObj
, Jim_Obj
**rhsObj
)
5096 return Jim_StringCompareObj(*lhsObj
, *rhsObj
, 0) * -1;
5099 static int ListSortStringNoCase(Jim_Obj
**lhsObj
, Jim_Obj
**rhsObj
)
5101 return Jim_StringCompareObj(*lhsObj
, *rhsObj
, 1);
5104 static int ListSortStringNoCaseDecr(Jim_Obj
**lhsObj
, Jim_Obj
**rhsObj
)
5106 return Jim_StringCompareObj(*lhsObj
, *rhsObj
, 1) * -1;
5109 /* Sort a list *in place*. MUST be called with non-shared objects. */
5110 static void ListSortElements(Jim_Interp
*interp
, Jim_Obj
*listObjPtr
, int type
)
5112 typedef int (qsort_comparator
)(const void *, const void *);
5113 int (*fn
)(Jim_Obj
**, Jim_Obj
**);
5117 if (Jim_IsShared(listObjPtr
))
5118 Jim_Panic(interp
,"Jim_ListSortElements called with shared object");
5119 if (listObjPtr
->typePtr
!= &listObjType
)
5120 SetListFromAny(interp
, listObjPtr
);
5122 vector
= listObjPtr
->internalRep
.listValue
.ele
;
5123 len
= listObjPtr
->internalRep
.listValue
.len
;
5125 case JIM_LSORT_ASCII
: fn
= ListSortString
; break;
5126 case JIM_LSORT_NOCASE
: fn
= ListSortStringNoCase
; break;
5127 case JIM_LSORT_ASCII_DECR
: fn
= ListSortStringDecr
; break;
5128 case JIM_LSORT_NOCASE_DECR
: fn
= ListSortStringNoCaseDecr
; break;
5130 fn
= NULL
; /* avoid warning */
5131 Jim_Panic(interp
,"ListSort called with invalid sort type");
5133 qsort(vector
, len
, sizeof(Jim_Obj
*), (qsort_comparator
*)fn
);
5134 Jim_InvalidateStringRep(listObjPtr
);
5137 /* This is the low-level function to append an element to a list.
5138 * The higher-level Jim_ListAppendElement() performs shared object
5139 * check and invalidate the string repr. This version is used
5140 * in the internals of the List Object and is not exported.
5142 * NOTE: this function can be called only against objects
5143 * with internal type of List. */
5144 void ListAppendElement(Jim_Obj
*listPtr
, Jim_Obj
*objPtr
)
5146 int requiredLen
= listPtr
->internalRep
.listValue
.len
+ 1;
5148 if (requiredLen
> listPtr
->internalRep
.listValue
.maxLen
) {
5149 int maxLen
= requiredLen
* 2;
5151 listPtr
->internalRep
.listValue
.ele
=
5152 Jim_Realloc(listPtr
->internalRep
.listValue
.ele
,
5153 sizeof(Jim_Obj
*)*maxLen
);
5154 listPtr
->internalRep
.listValue
.maxLen
= maxLen
;
5156 listPtr
->internalRep
.listValue
.ele
[listPtr
->internalRep
.listValue
.len
] =
5158 listPtr
->internalRep
.listValue
.len
++;
5159 Jim_IncrRefCount(objPtr
);
5162 /* This is the low-level function to insert elements into a list.
5163 * The higher-level Jim_ListInsertElements() performs shared object
5164 * check and invalidate the string repr. This version is used
5165 * in the internals of the List Object and is not exported.
5167 * NOTE: this function can be called only against objects
5168 * with internal type of List. */
5169 void ListInsertElements(Jim_Obj
*listPtr
, int index
, int elemc
,
5170 Jim_Obj
*const *elemVec
)
5172 int currentLen
= listPtr
->internalRep
.listValue
.len
;
5173 int requiredLen
= currentLen
+ elemc
;
5177 if (requiredLen
> listPtr
->internalRep
.listValue
.maxLen
) {
5178 int maxLen
= requiredLen
* 2;
5180 listPtr
->internalRep
.listValue
.ele
=
5181 Jim_Realloc(listPtr
->internalRep
.listValue
.ele
,
5182 sizeof(Jim_Obj
*)*maxLen
);
5183 listPtr
->internalRep
.listValue
.maxLen
= maxLen
;
5185 point
= listPtr
->internalRep
.listValue
.ele
+ index
;
5186 memmove(point
+elemc
, point
, (currentLen
-index
) * sizeof(Jim_Obj
*));
5187 for (i
=0; i
< elemc
; ++i
) {
5188 point
[i
] = elemVec
[i
];
5189 Jim_IncrRefCount(point
[i
]);
5191 listPtr
->internalRep
.listValue
.len
+= elemc
;
5194 /* Appends every element of appendListPtr into listPtr.
5195 * Both have to be of the list type. */
5196 void ListAppendList(Jim_Obj
*listPtr
, Jim_Obj
*appendListPtr
)
5198 int i
, oldLen
= listPtr
->internalRep
.listValue
.len
;
5199 int appendLen
= appendListPtr
->internalRep
.listValue
.len
;
5200 int requiredLen
= oldLen
+ appendLen
;
5202 if (requiredLen
> listPtr
->internalRep
.listValue
.maxLen
) {
5203 int maxLen
= requiredLen
* 2;
5205 listPtr
->internalRep
.listValue
.ele
=
5206 Jim_Realloc(listPtr
->internalRep
.listValue
.ele
,
5207 sizeof(Jim_Obj
*)*maxLen
);
5208 listPtr
->internalRep
.listValue
.maxLen
= maxLen
;
5210 for (i
= 0; i
< appendLen
; i
++) {
5211 Jim_Obj
*objPtr
= appendListPtr
->internalRep
.listValue
.ele
[i
];
5212 listPtr
->internalRep
.listValue
.ele
[oldLen
+i
] = objPtr
;
5213 Jim_IncrRefCount(objPtr
);
5215 listPtr
->internalRep
.listValue
.len
+= appendLen
;
5218 void Jim_ListAppendElement(Jim_Interp
*interp
, Jim_Obj
*listPtr
, Jim_Obj
*objPtr
)
5220 if (Jim_IsShared(listPtr
))
5221 Jim_Panic(interp
,"Jim_ListAppendElement called with shared object");
5222 if (listPtr
->typePtr
!= &listObjType
)
5223 SetListFromAny(interp
, listPtr
);
5224 Jim_InvalidateStringRep(listPtr
);
5225 ListAppendElement(listPtr
, objPtr
);
5228 void Jim_ListAppendList(Jim_Interp
*interp
, Jim_Obj
*listPtr
, Jim_Obj
*appendListPtr
)
5230 if (Jim_IsShared(listPtr
))
5231 Jim_Panic(interp
,"Jim_ListAppendList called with shared object");
5232 if (listPtr
->typePtr
!= &listObjType
)
5233 SetListFromAny(interp
, listPtr
);
5234 Jim_InvalidateStringRep(listPtr
);
5235 ListAppendList(listPtr
, appendListPtr
);
5238 void Jim_ListLength(Jim_Interp
*interp
, Jim_Obj
*listPtr
, int *intPtr
)
5240 if (listPtr
->typePtr
!= &listObjType
)
5241 SetListFromAny(interp
, listPtr
);
5242 *intPtr
= listPtr
->internalRep
.listValue
.len
;
5245 void Jim_ListInsertElements(Jim_Interp
*interp
, Jim_Obj
*listPtr
, int index
,
5246 int objc
, Jim_Obj
*const *objVec
)
5248 if (Jim_IsShared(listPtr
))
5249 Jim_Panic(interp
,"Jim_ListInsertElement called with shared object");
5250 if (listPtr
->typePtr
!= &listObjType
)
5251 SetListFromAny(interp
, listPtr
);
5252 if (index
>= 0 && index
> listPtr
->internalRep
.listValue
.len
)
5253 index
= listPtr
->internalRep
.listValue
.len
;
5254 else if (index
< 0 )
5256 Jim_InvalidateStringRep(listPtr
);
5257 ListInsertElements(listPtr
, index
, objc
, objVec
);
5260 int Jim_ListIndex(Jim_Interp
*interp
, Jim_Obj
*listPtr
, int index
,
5261 Jim_Obj
**objPtrPtr
, int flags
)
5263 if (listPtr
->typePtr
!= &listObjType
)
5264 SetListFromAny(interp
, listPtr
);
5265 if ((index
>= 0 && index
>= listPtr
->internalRep
.listValue
.len
) ||
5266 (index
< 0 && (-index
-1) >= listPtr
->internalRep
.listValue
.len
)) {
5267 if (flags
& JIM_ERRMSG
) {
5268 Jim_SetResultString(interp
,
5269 "list index out of range", -1);
5274 index
= listPtr
->internalRep
.listValue
.len
+index
;
5275 *objPtrPtr
= listPtr
->internalRep
.listValue
.ele
[index
];
5279 static int ListSetIndex(Jim_Interp
*interp
, Jim_Obj
*listPtr
, int index
,
5280 Jim_Obj
*newObjPtr
, int flags
)
5282 if (listPtr
->typePtr
!= &listObjType
)
5283 SetListFromAny(interp
, listPtr
);
5284 if ((index
>= 0 && index
>= listPtr
->internalRep
.listValue
.len
) ||
5285 (index
< 0 && (-index
-1) >= listPtr
->internalRep
.listValue
.len
)) {
5286 if (flags
& JIM_ERRMSG
) {
5287 Jim_SetResultString(interp
,
5288 "list index out of range", -1);
5293 index
= listPtr
->internalRep
.listValue
.len
+index
;
5294 Jim_DecrRefCount(interp
, listPtr
->internalRep
.listValue
.ele
[index
]);
5295 listPtr
->internalRep
.listValue
.ele
[index
] = newObjPtr
;
5296 Jim_IncrRefCount(newObjPtr
);
5300 /* Modify the list stored into the variable named 'varNamePtr'
5301 * setting the element specified by the 'indexc' indexes objects in 'indexv',
5302 * with the new element 'newObjptr'. */
5303 int Jim_SetListIndex(Jim_Interp
*interp
, Jim_Obj
*varNamePtr
,
5304 Jim_Obj
*const *indexv
, int indexc
, Jim_Obj
*newObjPtr
)
5306 Jim_Obj
*varObjPtr
, *objPtr
, *listObjPtr
;
5307 int shared
, i
, index
;
5309 varObjPtr
= objPtr
= Jim_GetVariable(interp
, varNamePtr
, JIM_ERRMSG
);
5312 if ((shared
= Jim_IsShared(objPtr
)))
5313 varObjPtr
= objPtr
= Jim_DuplicateObj(interp
, objPtr
);
5314 for (i
= 0; i
< indexc
-1; i
++) {
5315 listObjPtr
= objPtr
;
5316 if (Jim_GetIndex(interp
, indexv
[i
], &index
) != JIM_OK
)
5318 if (Jim_ListIndex(interp
, listObjPtr
, index
, &objPtr
,
5319 JIM_ERRMSG
) != JIM_OK
) {
5322 if (Jim_IsShared(objPtr
)) {
5323 objPtr
= Jim_DuplicateObj(interp
, objPtr
);
5324 ListSetIndex(interp
, listObjPtr
, index
, objPtr
, JIM_NONE
);
5326 Jim_InvalidateStringRep(listObjPtr
);
5328 if (Jim_GetIndex(interp
, indexv
[indexc
-1], &index
) != JIM_OK
)
5330 if (ListSetIndex(interp
, objPtr
, index
, newObjPtr
, JIM_ERRMSG
) == JIM_ERR
)
5332 Jim_InvalidateStringRep(objPtr
);
5333 Jim_InvalidateStringRep(varObjPtr
);
5334 if (Jim_SetVariable(interp
, varNamePtr
, varObjPtr
) != JIM_OK
)
5336 Jim_SetResult(interp
, varObjPtr
);
5340 Jim_FreeNewObj(interp
, varObjPtr
);
5345 Jim_Obj
*Jim_ConcatObj(Jim_Interp
*interp
, int objc
, Jim_Obj
*const *objv
)
5349 /* If all the objects in objv are lists without string rep.
5350 * it's possible to return a list as result, that's the
5351 * concatenation of all the lists. */
5352 for (i
= 0; i
< objc
; i
++) {
5353 if (objv
[i
]->typePtr
!= &listObjType
|| objv
[i
]->bytes
)
5357 Jim_Obj
*objPtr
= Jim_NewListObj(interp
, NULL
, 0);
5358 for (i
= 0; i
< objc
; i
++)
5359 Jim_ListAppendList(interp
, objPtr
, objv
[i
]);
5362 /* Else... we have to glue strings together */
5363 int len
= 0, objLen
;
5366 /* Compute the length */
5367 for (i
= 0; i
< objc
; i
++) {
5368 Jim_GetString(objv
[i
], &objLen
);
5371 if (objc
) len
+= objc
-1;
5372 /* Create the string rep, and a stinrg object holding it. */
5373 p
= bytes
= Jim_Alloc(len
+1);
5374 for (i
= 0; i
< objc
; i
++) {
5375 const char *s
= Jim_GetString(objv
[i
], &objLen
);
5376 while (objLen
&& (*s
== ' ' || *s
== '\t' || *s
== '\n'))
5378 s
++; objLen
--; len
--;
5380 while (objLen
&& (s
[objLen
-1] == ' ' ||
5381 s
[objLen
-1] == '\n' || s
[objLen
-1] == '\t')) {
5384 memcpy(p
, s
, objLen
);
5386 if (objLen
&& i
+1 != objc
) {
5388 } else if (i
+1 != objc
) {
5389 /* Drop the space calcuated for this
5390 * element that is instead null. */
5395 return Jim_NewStringObjNoAlloc(interp
, bytes
, len
);
5399 /* Returns a list composed of the elements in the specified range.
5400 * first and start are directly accepted as Jim_Objects and
5401 * processed for the end?-index? case. */
5402 Jim_Obj
*Jim_ListRange(Jim_Interp
*interp
, Jim_Obj
*listObjPtr
, Jim_Obj
*firstObjPtr
, Jim_Obj
*lastObjPtr
)
5407 if (Jim_GetIndex(interp
, firstObjPtr
, &first
) != JIM_OK
||
5408 Jim_GetIndex(interp
, lastObjPtr
, &last
) != JIM_OK
)
5410 Jim_ListLength(interp
, listObjPtr
, &len
); /* will convert into list */
5411 first
= JimRelToAbsIndex(len
, first
);
5412 last
= JimRelToAbsIndex(len
, last
);
5413 JimRelToAbsRange(len
, first
, last
, &first
, &last
, &rangeLen
);
5414 return Jim_NewListObj(interp
,
5415 listObjPtr
->internalRep
.listValue
.ele
+first
, rangeLen
);
5418 /* -----------------------------------------------------------------------------
5420 * ---------------------------------------------------------------------------*/
5421 static void FreeDictInternalRep(Jim_Interp
*interp
, Jim_Obj
*objPtr
);
5422 static void DupDictInternalRep(Jim_Interp
*interp
, Jim_Obj
*srcPtr
, Jim_Obj
*dupPtr
);
5423 static void UpdateStringOfDict(struct Jim_Obj
*objPtr
);
5424 static int SetDictFromAny(Jim_Interp
*interp
, struct Jim_Obj
*objPtr
);
5426 /* Dict HashTable Type.
5428 * Keys and Values are Jim objects. */
5430 unsigned int JimObjectHTHashFunction(const void *key
)
5433 Jim_Obj
*objPtr
= (Jim_Obj
*) key
;
5436 str
= Jim_GetString(objPtr
, &len
);
5437 h
= Jim_GenHashFunction((unsigned char*)str
, len
);
5441 int JimObjectHTKeyCompare(void *privdata
, const void *key1
, const void *key2
)
5443 JIM_NOTUSED(privdata
);
5445 return Jim_StringEqObj((Jim_Obj
*)key1
, (Jim_Obj
*)key2
, 0);
5448 static void JimObjectHTKeyValDestructor(void *interp
, void *val
)
5450 Jim_Obj
*objPtr
= val
;
5452 Jim_DecrRefCount(interp
, objPtr
);
5455 static Jim_HashTableType JimDictHashTableType
= {
5456 JimObjectHTHashFunction
, /* hash function */
5459 JimObjectHTKeyCompare
, /* key compare */
5460 (void(*)(void*, const void*)) /* ATTENTION: const cast */
5461 JimObjectHTKeyValDestructor
, /* key destructor */
5462 JimObjectHTKeyValDestructor
/* val destructor */
5465 /* Note that while the elements of the dict may contain references,
5466 * the list object itself can't. This basically means that the
5467 * dict object string representation as a whole can't contain references
5468 * that are not presents in the single elements. */
5469 static Jim_ObjType dictObjType
= {
5471 FreeDictInternalRep
,
5477 void FreeDictInternalRep(Jim_Interp
*interp
, Jim_Obj
*objPtr
)
5479 JIM_NOTUSED(interp
);
5481 Jim_FreeHashTable(objPtr
->internalRep
.ptr
);
5482 Jim_Free(objPtr
->internalRep
.ptr
);
5485 void DupDictInternalRep(Jim_Interp
*interp
, Jim_Obj
*srcPtr
, Jim_Obj
*dupPtr
)
5487 Jim_HashTable
*ht
, *dupHt
;
5488 Jim_HashTableIterator
*htiter
;
5491 /* Create a new hash table */
5492 ht
= srcPtr
->internalRep
.ptr
;
5493 dupHt
= Jim_Alloc(sizeof(*dupHt
));
5494 Jim_InitHashTable(dupHt
, &JimDictHashTableType
, interp
);
5496 Jim_ExpandHashTable(dupHt
, ht
->size
);
5497 /* Copy every element from the source to the dup hash table */
5498 htiter
= Jim_GetHashTableIterator(ht
);
5499 while ((he
= Jim_NextHashEntry(htiter
)) != NULL
) {
5500 const Jim_Obj
*keyObjPtr
= he
->key
;
5501 Jim_Obj
*valObjPtr
= he
->val
;
5503 Jim_IncrRefCount((Jim_Obj
*)keyObjPtr
); /* ATTENTION: const cast */
5504 Jim_IncrRefCount(valObjPtr
);
5505 Jim_AddHashEntry(dupHt
, keyObjPtr
, valObjPtr
);
5507 Jim_FreeHashTableIterator(htiter
);
5509 dupPtr
->internalRep
.ptr
= dupHt
;
5510 dupPtr
->typePtr
= &dictObjType
;
5513 void UpdateStringOfDict(struct Jim_Obj
*objPtr
)
5515 int i
, bufLen
, realLength
;
5518 int *quotingType
, objc
;
5520 Jim_HashTableIterator
*htiter
;
5524 /* Trun the hash table into a flat vector of Jim_Objects. */
5525 ht
= objPtr
->internalRep
.ptr
;
5527 objv
= Jim_Alloc(objc
*sizeof(Jim_Obj
*));
5528 htiter
= Jim_GetHashTableIterator(ht
);
5530 while ((he
= Jim_NextHashEntry(htiter
)) != NULL
) {
5531 objv
[i
++] = (Jim_Obj
*)he
->key
; /* ATTENTION: const cast */
5532 objv
[i
++] = he
->val
;
5534 Jim_FreeHashTableIterator(htiter
);
5535 /* (Over) Estimate the space needed. */
5536 quotingType
= Jim_Alloc(sizeof(int)*objc
);
5538 for (i
= 0; i
< objc
; i
++) {
5541 strRep
= Jim_GetString(objv
[i
], &len
);
5542 quotingType
[i
] = ListElementQuotingType(strRep
, len
);
5543 switch (quotingType
[i
]) {
5544 case JIM_ELESTR_SIMPLE
: bufLen
+= len
; break;
5545 case JIM_ELESTR_BRACE
: bufLen
+= len
+2; break;
5546 case JIM_ELESTR_QUOTE
: bufLen
+= len
*2; break;
5548 bufLen
++; /* elements separator. */
5552 /* Generate the string rep. */
5553 p
= objPtr
->bytes
= Jim_Alloc(bufLen
+1);
5555 for (i
= 0; i
< objc
; i
++) {
5557 const char *strRep
= Jim_GetString(objv
[i
], &len
);
5560 switch(quotingType
[i
]) {
5561 case JIM_ELESTR_SIMPLE
:
5562 memcpy(p
, strRep
, len
);
5566 case JIM_ELESTR_BRACE
:
5568 memcpy(p
, strRep
, len
);
5571 realLength
+= len
+2;
5573 case JIM_ELESTR_QUOTE
:
5574 q
= BackslashQuoteString(strRep
, len
, &qlen
);
5581 /* Add a separating space */
5587 *p
= '\0'; /* nul term. */
5588 objPtr
->length
= realLength
;
5589 Jim_Free(quotingType
);
5593 int SetDictFromAny(Jim_Interp
*interp
, struct Jim_Obj
*objPtr
)
5595 struct JimParserCtx parser
;
5601 /* Get the string representation */
5602 str
= Jim_GetString(objPtr
, &strLen
);
5604 /* Free the old internal repr just now and initialize the
5605 * new one just now. The string->list conversion can't fail. */
5606 Jim_FreeIntRep(interp
, objPtr
);
5607 ht
= Jim_Alloc(sizeof(*ht
));
5608 Jim_InitHashTable(ht
, &JimDictHashTableType
, interp
);
5609 objPtr
->typePtr
= &dictObjType
;
5610 objPtr
->internalRep
.ptr
= ht
;
5612 /* Convert into a dict */
5613 JimParserInit(&parser
, str
, strLen
, 1);
5615 while(!JimParserEof(&parser
)) {
5619 JimParseList(&parser
);
5620 if (JimParserTtype(&parser
) != JIM_TT_STR
&&
5621 JimParserTtype(&parser
) != JIM_TT_ESC
)
5623 token
= JimParserGetToken(&parser
, &tokenLen
, &type
, NULL
);
5624 objv
[i
++] = Jim_NewStringObjNoAlloc(interp
, token
, tokenLen
);
5627 Jim_IncrRefCount(objv
[0]);
5628 Jim_IncrRefCount(objv
[1]);
5629 if (Jim_AddHashEntry(ht
, objv
[0], objv
[1]) != JIM_OK
) {
5631 he
= Jim_FindHashEntry(ht
, objv
[0]);
5632 Jim_DecrRefCount(interp
, objv
[0]);
5633 /* ATTENTION: const cast */
5634 Jim_DecrRefCount(interp
, (Jim_Obj
*)he
->val
);
5640 Jim_FreeNewObj(interp
, objv
[0]);
5641 objPtr
->typePtr
= NULL
;
5642 Jim_FreeHashTable(ht
);
5643 Jim_SetResultString(interp
, "invalid dictionary value: must be a list with an even number of elements", -1);
5649 /* Dict object API */
5651 /* Add an element to a dict. objPtr must be of the "dict" type.
5652 * The higer-level exported function is Jim_DictAddElement().
5653 * If an element with the specified key already exists, the value
5654 * associated is replaced with the new one.
5656 * if valueObjPtr == NULL, the key is instead removed if it exists. */
5657 static void DictAddElement(Jim_Interp
*interp
, Jim_Obj
*objPtr
,
5658 Jim_Obj
*keyObjPtr
, Jim_Obj
*valueObjPtr
)
5660 Jim_HashTable
*ht
= objPtr
->internalRep
.ptr
;
5662 if (valueObjPtr
== NULL
) { /* unset */
5663 Jim_DeleteHashEntry(ht
, keyObjPtr
);
5666 Jim_IncrRefCount(keyObjPtr
);
5667 Jim_IncrRefCount(valueObjPtr
);
5668 if (Jim_AddHashEntry(ht
, keyObjPtr
, valueObjPtr
) != JIM_OK
) {
5669 Jim_HashEntry
*he
= Jim_FindHashEntry(ht
, keyObjPtr
);
5670 Jim_DecrRefCount(interp
, keyObjPtr
);
5671 /* ATTENTION: const cast */
5672 Jim_DecrRefCount(interp
, (Jim_Obj
*)he
->val
);
5673 he
->val
= valueObjPtr
;
5677 /* Add an element, higher-level interface for DictAddElement().
5678 * If valueObjPtr == NULL, the key is removed if it exists. */
5679 int Jim_DictAddElement(Jim_Interp
*interp
, Jim_Obj
*objPtr
,
5680 Jim_Obj
*keyObjPtr
, Jim_Obj
*valueObjPtr
)
5682 if (Jim_IsShared(objPtr
))
5683 Jim_Panic(interp
,"Jim_DictAddElement called with shared object");
5684 if (objPtr
->typePtr
!= &dictObjType
) {
5685 if (SetDictFromAny(interp
, objPtr
) != JIM_OK
)
5688 DictAddElement(interp
, objPtr
, keyObjPtr
, valueObjPtr
);
5689 Jim_InvalidateStringRep(objPtr
);
5693 Jim_Obj
*Jim_NewDictObj(Jim_Interp
*interp
, Jim_Obj
*const *elements
, int len
)
5699 Jim_Panic(interp
,"Jim_NewDicObj() 'len' argument must be even");
5701 objPtr
= Jim_NewObj(interp
);
5702 objPtr
->typePtr
= &dictObjType
;
5703 objPtr
->bytes
= NULL
;
5704 objPtr
->internalRep
.ptr
= Jim_Alloc(sizeof(Jim_HashTable
));
5705 Jim_InitHashTable(objPtr
->internalRep
.ptr
, &JimDictHashTableType
, interp
);
5706 for (i
= 0; i
< len
; i
+= 2)
5707 DictAddElement(interp
, objPtr
, elements
[i
], elements
[i
+1]);
5711 /* Return the value associated to the specified dict key */
5712 int Jim_DictKey(Jim_Interp
*interp
, Jim_Obj
*dictPtr
, Jim_Obj
*keyPtr
,
5713 Jim_Obj
**objPtrPtr
, int flags
)
5718 if (dictPtr
->typePtr
!= &dictObjType
) {
5719 if (SetDictFromAny(interp
, dictPtr
) != JIM_OK
)
5722 ht
= dictPtr
->internalRep
.ptr
;
5723 if ((he
= Jim_FindHashEntry(ht
, keyPtr
)) == NULL
) {
5724 if (flags
& JIM_ERRMSG
) {
5725 Jim_SetResult(interp
, Jim_NewEmptyStringObj(interp
));
5726 Jim_AppendStrings(interp
, Jim_GetResult(interp
),
5727 "key \"", Jim_GetString(keyPtr
, NULL
),
5728 "\" not found in dictionary", NULL
);
5732 *objPtrPtr
= he
->val
;
5736 /* Return the value associated to the specified dict keys */
5737 int Jim_DictKeysVector(Jim_Interp
*interp
, Jim_Obj
*dictPtr
,
5738 Jim_Obj
*const *keyv
, int keyc
, Jim_Obj
**objPtrPtr
, int flags
)
5744 *objPtrPtr
= dictPtr
;
5748 for (i
= 0; i
< keyc
; i
++) {
5749 if (Jim_DictKey(interp
, dictPtr
, keyv
[i
], &objPtr
, flags
)
5754 *objPtrPtr
= objPtr
;
5758 /* Modify the dict stored into the variable named 'varNamePtr'
5759 * setting the element specified by the 'keyc' keys objects in 'keyv',
5760 * with the new value of the element 'newObjPtr'.
5762 * If newObjPtr == NULL the operation is to remove the given key
5763 * from the dictionary. */
5764 int Jim_SetDictKeysVector(Jim_Interp
*interp
, Jim_Obj
*varNamePtr
,
5765 Jim_Obj
*const *keyv
, int keyc
, Jim_Obj
*newObjPtr
)
5767 Jim_Obj
*varObjPtr
, *objPtr
, *dictObjPtr
;
5770 varObjPtr
= objPtr
= Jim_GetVariable(interp
, varNamePtr
, JIM_ERRMSG
);
5771 if (objPtr
== NULL
) {
5772 if (newObjPtr
== NULL
) /* Cannot remove a key from non existing var */
5774 varObjPtr
= objPtr
= Jim_NewDictObj(interp
, NULL
, 0);
5775 if (Jim_SetVariable(interp
, varNamePtr
, objPtr
) != JIM_OK
) {
5776 Jim_FreeNewObj(interp
, varObjPtr
);
5780 if ((shared
= Jim_IsShared(objPtr
)))
5781 varObjPtr
= objPtr
= Jim_DuplicateObj(interp
, objPtr
);
5782 for (i
= 0; i
< keyc
-1; i
++) {
5783 dictObjPtr
= objPtr
;
5785 /* Check if it's a valid dictionary */
5786 if (dictObjPtr
->typePtr
!= &dictObjType
) {
5787 if (SetDictFromAny(interp
, dictObjPtr
) != JIM_OK
)
5790 /* Check if the given key exists. */
5791 Jim_InvalidateStringRep(dictObjPtr
);
5792 if (Jim_DictKey(interp
, dictObjPtr
, keyv
[i
], &objPtr
,
5793 newObjPtr
? JIM_NONE
: JIM_ERRMSG
) == JIM_OK
)
5795 /* This key exists at the current level.
5796 * Make sure it's not shared!. */
5797 if (Jim_IsShared(objPtr
)) {
5798 objPtr
= Jim_DuplicateObj(interp
, objPtr
);
5799 DictAddElement(interp
, dictObjPtr
, keyv
[i
], objPtr
);
5802 /* Key not found. If it's an [unset] operation
5803 * this is an error. Only the last key may not
5805 if (newObjPtr
== NULL
)
5807 /* Otherwise set an empty dictionary
5808 * as key's value. */
5809 objPtr
= Jim_NewDictObj(interp
, NULL
, 0);
5810 DictAddElement(interp
, dictObjPtr
, keyv
[i
], objPtr
);
5813 if (Jim_DictAddElement(interp
, objPtr
, keyv
[keyc
-1], newObjPtr
)
5816 Jim_InvalidateStringRep(objPtr
);
5817 Jim_InvalidateStringRep(varObjPtr
);
5818 if (Jim_SetVariable(interp
, varNamePtr
, varObjPtr
) != JIM_OK
)
5820 Jim_SetResult(interp
, varObjPtr
);
5824 Jim_FreeNewObj(interp
, varObjPtr
);
5829 /* -----------------------------------------------------------------------------
5831 * ---------------------------------------------------------------------------*/
5832 static void UpdateStringOfIndex(struct Jim_Obj
*objPtr
);
5833 static int SetIndexFromAny(Jim_Interp
*interp
, struct Jim_Obj
*objPtr
);
5835 static Jim_ObjType indexObjType
= {
5839 UpdateStringOfIndex
,
5843 void UpdateStringOfIndex(struct Jim_Obj
*objPtr
)
5846 char buf
[JIM_INTEGER_SPACE
+1];
5848 if (objPtr
->internalRep
.indexValue
>= 0)
5849 len
= sprintf(buf
, "%d", objPtr
->internalRep
.indexValue
);
5850 else if (objPtr
->internalRep
.indexValue
== -1)
5851 len
= sprintf(buf
, "end");
5853 len
= sprintf(buf
, "end%d", objPtr
->internalRep
.indexValue
+1);
5855 objPtr
->bytes
= Jim_Alloc(len
+1);
5856 memcpy(objPtr
->bytes
, buf
, len
+1);
5857 objPtr
->length
= len
;
5860 int SetIndexFromAny(Jim_Interp
*interp
, Jim_Obj
*objPtr
)
5865 /* Get the string representation */
5866 str
= Jim_GetString(objPtr
, NULL
);
5867 /* Try to convert into an index */
5868 if (!strcmp(str
, "end")) {
5872 if (!strncmp(str
, "end-", 4)) {
5876 if (Jim_StringToIndex(str
, &index
) != JIM_OK
) {
5877 Jim_SetResult(interp
, Jim_NewEmptyStringObj(interp
));
5878 Jim_AppendStrings(interp
, Jim_GetResult(interp
),
5879 "bad index \"", Jim_GetString(objPtr
, NULL
), "\": "
5880 "must be integer or end?-integer?", NULL
);
5889 } else if (!end
&& index
< 0)
5891 /* Free the old internal repr and set the new one. */
5892 Jim_FreeIntRep(interp
, objPtr
);
5893 objPtr
->typePtr
= &indexObjType
;
5894 objPtr
->internalRep
.indexValue
= index
;
5898 int Jim_GetIndex(Jim_Interp
*interp
, Jim_Obj
*objPtr
, int *indexPtr
)
5900 /* Avoid shimmering if the object is an integer. */
5901 if (objPtr
->typePtr
== &intObjType
) {
5902 jim_wide val
= objPtr
->internalRep
.wideValue
;
5903 if (!(val
< LONG_MIN
) && !(val
> LONG_MAX
)) {
5904 *indexPtr
= (val
< 0) ? -INT_MAX
: (long)val
;;
5908 if (objPtr
->typePtr
!= &indexObjType
&&
5909 SetIndexFromAny(interp
, objPtr
) == JIM_ERR
)
5911 *indexPtr
= objPtr
->internalRep
.indexValue
;
5915 /* -----------------------------------------------------------------------------
5916 * Return Code Object.
5917 * ---------------------------------------------------------------------------*/
5919 static int SetReturnCodeFromAny(Jim_Interp
*interp
, Jim_Obj
*objPtr
);
5921 static Jim_ObjType returnCodeObjType
= {
5929 int SetReturnCodeFromAny(Jim_Interp
*interp
, Jim_Obj
*objPtr
)
5932 int strLen
, returnCode
;
5935 /* Get the string representation */
5936 str
= Jim_GetString(objPtr
, &strLen
);
5937 /* Try to convert into an integer */
5938 if (JimGetWideNoErr(interp
, objPtr
, &wideValue
) != JIM_ERR
)
5939 returnCode
= (int) wideValue
;
5940 else if (!JimStringCompare(str
, strLen
, "ok", 2, JIM_NOCASE
))
5941 returnCode
= JIM_OK
;
5942 else if (!JimStringCompare(str
, strLen
, "error", 5, JIM_NOCASE
))
5943 returnCode
= JIM_ERR
;
5944 else if (!JimStringCompare(str
, strLen
, "return", 6, JIM_NOCASE
))
5945 returnCode
= JIM_RETURN
;
5946 else if (!JimStringCompare(str
, strLen
, "break", 5, JIM_NOCASE
))
5947 returnCode
= JIM_BREAK
;
5948 else if (!JimStringCompare(str
, strLen
, "continue", 8, JIM_NOCASE
))
5949 returnCode
= JIM_CONTINUE
;
5950 else if (!JimStringCompare(str
, strLen
, "eval", 4, JIM_NOCASE
))
5951 returnCode
= JIM_EVAL
;
5952 else if (!JimStringCompare(str
, strLen
, "exit", 4, JIM_NOCASE
))
5953 returnCode
= JIM_EXIT
;
5955 Jim_SetResult(interp
, Jim_NewEmptyStringObj(interp
));
5956 Jim_AppendStrings(interp
, Jim_GetResult(interp
),
5957 "expected return code but got '", str
, "'",
5961 /* Free the old internal repr and set the new one. */
5962 Jim_FreeIntRep(interp
, objPtr
);
5963 objPtr
->typePtr
= &returnCodeObjType
;
5964 objPtr
->internalRep
.returnCode
= returnCode
;
5968 int Jim_GetReturnCode(Jim_Interp
*interp
, Jim_Obj
*objPtr
, int *intPtr
)
5970 if (objPtr
->typePtr
!= &returnCodeObjType
&&
5971 SetReturnCodeFromAny(interp
, objPtr
) == JIM_ERR
)
5973 *intPtr
= objPtr
->internalRep
.returnCode
;
5977 /* -----------------------------------------------------------------------------
5978 * Expression Parsing
5979 * ---------------------------------------------------------------------------*/
5980 static int JimParseExprOperator(struct JimParserCtx
*pc
);
5981 static int JimParseExprNumber(struct JimParserCtx
*pc
);
5982 static int JimParseExprIrrational(struct JimParserCtx
*pc
);
5984 /* Exrp's Stack machine operators opcodes. */
5986 /* Binary operators (numbers) */
5987 #define JIM_EXPROP_BINARY_NUM_FIRST 0 /* first */
5988 #define JIM_EXPROP_MUL 0
5989 #define JIM_EXPROP_DIV 1
5990 #define JIM_EXPROP_MOD 2
5991 #define JIM_EXPROP_SUB 3
5992 #define JIM_EXPROP_ADD 4
5993 #define JIM_EXPROP_LSHIFT 5
5994 #define JIM_EXPROP_RSHIFT 6
5995 #define JIM_EXPROP_ROTL 7
5996 #define JIM_EXPROP_ROTR 8
5997 #define JIM_EXPROP_LT 9
5998 #define JIM_EXPROP_GT 10
5999 #define JIM_EXPROP_LTE 11
6000 #define JIM_EXPROP_GTE 12
6001 #define JIM_EXPROP_NUMEQ 13
6002 #define JIM_EXPROP_NUMNE 14
6003 #define JIM_EXPROP_BITAND 15
6004 #define JIM_EXPROP_BITXOR 16
6005 #define JIM_EXPROP_BITOR 17
6006 #define JIM_EXPROP_LOGICAND 18
6007 #define JIM_EXPROP_LOGICOR 19
6008 #define JIM_EXPROP_LOGICAND_LEFT 20
6009 #define JIM_EXPROP_LOGICOR_LEFT 21
6010 #define JIM_EXPROP_POW 22
6011 #define JIM_EXPROP_BINARY_NUM_LAST 22 /* last */
6013 /* Binary operators (strings) */
6014 #define JIM_EXPROP_STREQ 23
6015 #define JIM_EXPROP_STRNE 24
6017 /* Unary operators (numbers) */
6018 #define JIM_EXPROP_NOT 25
6019 #define JIM_EXPROP_BITNOT 26
6020 #define JIM_EXPROP_UNARYMINUS 27
6021 #define JIM_EXPROP_UNARYPLUS 28
6022 #define JIM_EXPROP_LOGICAND_RIGHT 29
6023 #define JIM_EXPROP_LOGICOR_RIGHT 30
6025 /* Ternary operators */
6026 #define JIM_EXPROP_TERNARY 31
6029 #define JIM_EXPROP_NUMBER 32
6030 #define JIM_EXPROP_COMMAND 33
6031 #define JIM_EXPROP_VARIABLE 34
6032 #define JIM_EXPROP_DICTSUGAR 35
6033 #define JIM_EXPROP_SUBST 36
6034 #define JIM_EXPROP_STRING 37
6036 /* Operators table */
6037 typedef struct Jim_ExprOperator
{
6044 /* name - precedence - arity - opcode */
6045 static struct Jim_ExprOperator Jim_ExprOperators
[] = {
6046 {"!", 300, 1, JIM_EXPROP_NOT
},
6047 {"~", 300, 1, JIM_EXPROP_BITNOT
},
6048 {"unarymin", 300, 1, JIM_EXPROP_UNARYMINUS
},
6049 {"unaryplus", 300, 1, JIM_EXPROP_UNARYPLUS
},
6051 {"**", 250, 2, JIM_EXPROP_POW
},
6053 {"*", 200, 2, JIM_EXPROP_MUL
},
6054 {"/", 200, 2, JIM_EXPROP_DIV
},
6055 {"%", 200, 2, JIM_EXPROP_MOD
},
6057 {"-", 100, 2, JIM_EXPROP_SUB
},
6058 {"+", 100, 2, JIM_EXPROP_ADD
},
6060 {"<<<", 90, 3, JIM_EXPROP_ROTL
},
6061 {">>>", 90, 3, JIM_EXPROP_ROTR
},
6062 {"<<", 90, 2, JIM_EXPROP_LSHIFT
},
6063 {">>", 90, 2, JIM_EXPROP_RSHIFT
},
6065 {"<", 80, 2, JIM_EXPROP_LT
},
6066 {">", 80, 2, JIM_EXPROP_GT
},
6067 {"<=", 80, 2, JIM_EXPROP_LTE
},
6068 {">=", 80, 2, JIM_EXPROP_GTE
},
6070 {"==", 70, 2, JIM_EXPROP_NUMEQ
},
6071 {"!=", 70, 2, JIM_EXPROP_NUMNE
},
6073 {"eq", 60, 2, JIM_EXPROP_STREQ
},
6074 {"ne", 60, 2, JIM_EXPROP_STRNE
},
6076 {"&", 50, 2, JIM_EXPROP_BITAND
},
6077 {"^", 49, 2, JIM_EXPROP_BITXOR
},
6078 {"|", 48, 2, JIM_EXPROP_BITOR
},
6080 {"&&", 10, 2, JIM_EXPROP_LOGICAND
},
6081 {"||", 10, 2, JIM_EXPROP_LOGICOR
},
6083 {"?", 5, 3, JIM_EXPROP_TERNARY
},
6084 /* private operators */
6085 {NULL
, 10, 2, JIM_EXPROP_LOGICAND_LEFT
},
6086 {NULL
, 10, 1, JIM_EXPROP_LOGICAND_RIGHT
},
6087 {NULL
, 10, 2, JIM_EXPROP_LOGICOR_LEFT
},
6088 {NULL
, 10, 1, JIM_EXPROP_LOGICOR_RIGHT
},
6091 #define JIM_EXPR_OPERATORS_NUM \
6092 (sizeof(Jim_ExprOperators)/sizeof(struct Jim_ExprOperator))
6094 int JimParseExpression(struct JimParserCtx
*pc
)
6096 /* Discard spaces and quoted newline */
6097 while(*(pc
->p
) == ' ' ||
6101 (*(pc
->p
) == '\\' && *(pc
->p
+1) == '\n')) {
6106 pc
->tstart
= pc
->tend
= pc
->p
;
6107 pc
->tline
= pc
->linenr
;
6108 pc
->tt
= JIM_TT_EOL
;
6114 pc
->tstart
= pc
->tend
= pc
->p
;
6115 pc
->tline
= pc
->linenr
;
6116 pc
->tt
= JIM_TT_SUBEXPR_START
;
6120 pc
->tstart
= pc
->tend
= pc
->p
;
6121 pc
->tline
= pc
->linenr
;
6122 pc
->tt
= JIM_TT_SUBEXPR_END
;
6126 return JimParseCmd(pc
);
6129 if (JimParseVar(pc
) == JIM_ERR
)
6130 return JimParseExprOperator(pc
);
6135 if ((pc
->tt
== JIM_TT_NONE
|| pc
->tt
== JIM_TT_EXPR_OPERATOR
) &&
6136 isdigit((int)*(pc
->p
+1)))
6137 return JimParseExprNumber(pc
);
6139 return JimParseExprOperator(pc
);
6141 case '0': case '1': case '2': case '3': case '4':
6142 case '5': case '6': case '7': case '8': case '9': case '.':
6143 return JimParseExprNumber(pc
);
6147 /* Here it's possible to reuse the List String parsing. */
6148 pc
->tt
= JIM_TT_NONE
; /* Make sure it's sensed as a new word. */
6149 return JimParseListStr(pc
);
6153 if (JimParseExprIrrational(pc
) == JIM_ERR
)
6154 return JimParseExprOperator(pc
);
6157 return JimParseExprOperator(pc
);
6163 int JimParseExprNumber(struct JimParserCtx
*pc
)
6169 pc
->tline
= pc
->linenr
;
6170 if (*pc
->p
== '-') {
6173 while ( isdigit((int)*pc
->p
)
6174 || (allowhex
&& isxdigit((int)*pc
->p
) )
6175 || (allowdot
&& *pc
->p
== '.')
6176 || (pc
->p
-pc
->tstart
== 1 && *pc
->tstart
== '0' &&
6177 (*pc
->p
== 'x' || *pc
->p
== 'X'))
6180 if ((*pc
->p
== 'x') || (*pc
->p
== 'X')) {
6187 if (!allowdot
&& *pc
->p
== 'e' && *(pc
->p
+1) == '-') {
6188 pc
->p
+= 2; pc
->len
-= 2;
6192 pc
->tt
= JIM_TT_EXPR_NUMBER
;
6196 int JimParseExprIrrational(struct JimParserCtx
*pc
)
6198 const char *Tokens
[] = {"NaN", "nan", "NAN", "Inf", "inf", "INF", NULL
};
6200 for (token
= Tokens
; *token
!= NULL
; token
++) {
6201 int len
= strlen(*token
);
6202 if (strncmp(*token
, pc
->p
, len
) == 0) {
6204 pc
->tend
= pc
->p
+ len
- 1;
6205 pc
->p
+= len
; pc
->len
-= len
;
6206 pc
->tline
= pc
->linenr
;
6207 pc
->tt
= JIM_TT_EXPR_NUMBER
;
6214 int JimParseExprOperator(struct JimParserCtx
*pc
)
6217 int bestIdx
= -1, bestLen
= 0;
6219 /* Try to get the longest match. */
6220 for (i
= 0; i
< (signed)JIM_EXPR_OPERATORS_NUM
; i
++) {
6224 opname
= Jim_ExprOperators
[i
].name
;
6225 if (opname
== NULL
) continue;
6226 oplen
= strlen(opname
);
6228 if (strncmp(opname
, pc
->p
, oplen
) == 0 && oplen
> bestLen
) {
6233 if (bestIdx
== -1) return JIM_ERR
;
6235 pc
->tend
= pc
->p
+ bestLen
- 1;
6236 pc
->p
+= bestLen
; pc
->len
-= bestLen
;
6237 pc
->tline
= pc
->linenr
;
6238 pc
->tt
= JIM_TT_EXPR_OPERATOR
;
6242 struct Jim_ExprOperator
*JimExprOperatorInfo(const char *opname
)
6245 for (i
= 0; i
< (signed)JIM_EXPR_OPERATORS_NUM
; i
++)
6246 if (Jim_ExprOperators
[i
].name
&&
6247 strcmp(opname
, Jim_ExprOperators
[i
].name
) == 0)
6248 return &Jim_ExprOperators
[i
];
6252 struct Jim_ExprOperator
*JimExprOperatorInfoByOpcode(int opcode
)
6255 for (i
= 0; i
< (signed)JIM_EXPR_OPERATORS_NUM
; i
++)
6256 if (Jim_ExprOperators
[i
].opcode
== opcode
)
6257 return &Jim_ExprOperators
[i
];
6261 /* -----------------------------------------------------------------------------
6263 * ---------------------------------------------------------------------------*/
6264 static void FreeExprInternalRep(Jim_Interp
*interp
, Jim_Obj
*objPtr
);
6265 static void DupExprInternalRep(Jim_Interp
*interp
, Jim_Obj
*srcPtr
, Jim_Obj
*dupPtr
);
6266 static int SetExprFromAny(Jim_Interp
*interp
, struct Jim_Obj
*objPtr
);
6268 static Jim_ObjType exprObjType
= {
6270 FreeExprInternalRep
,
6273 JIM_TYPE_REFERENCES
,
6276 /* Expr bytecode structure */
6277 typedef struct ExprByteCode
{
6278 int *opcode
; /* Integer array of opcodes. */
6279 Jim_Obj
**obj
; /* Array of associated Jim Objects. */
6280 int len
; /* Bytecode length */
6281 int inUse
; /* Used for sharing. */
6284 void FreeExprInternalRep(Jim_Interp
*interp
, Jim_Obj
*objPtr
)
6287 ExprByteCode
*expr
= (void*) objPtr
->internalRep
.ptr
;
6290 if (expr
->inUse
!= 0) return;
6291 for (i
= 0; i
< expr
->len
; i
++)
6292 Jim_DecrRefCount(interp
, expr
->obj
[i
]);
6293 Jim_Free(expr
->opcode
);
6294 Jim_Free(expr
->obj
);
6298 void DupExprInternalRep(Jim_Interp
*interp
, Jim_Obj
*srcPtr
, Jim_Obj
*dupPtr
)
6300 JIM_NOTUSED(interp
);
6301 JIM_NOTUSED(srcPtr
);
6303 /* Just returns an simple string. */
6304 dupPtr
->typePtr
= NULL
;
6307 /* Add a new instruction to an expression bytecode structure. */
6308 static void ExprObjAddInstr(Jim_Interp
*interp
, ExprByteCode
*expr
,
6309 int opcode
, char *str
, int len
)
6311 expr
->opcode
= Jim_Realloc(expr
->opcode
, sizeof(int)*(expr
->len
+1));
6312 expr
->obj
= Jim_Realloc(expr
->obj
, sizeof(Jim_Obj
*)*(expr
->len
+1));
6313 expr
->opcode
[expr
->len
] = opcode
;
6314 expr
->obj
[expr
->len
] = Jim_NewStringObjNoAlloc(interp
, str
, len
);
6315 Jim_IncrRefCount(expr
->obj
[expr
->len
]);
6319 /* Check if an expr program looks correct. */
6320 static int ExprCheckCorrectness(ExprByteCode
*expr
)
6325 /* Try to check if there are stack underflows,
6326 * and make sure at the end of the program there is
6327 * a single result on the stack. */
6328 for (i
= 0; i
< expr
->len
; i
++) {
6329 switch(expr
->opcode
[i
]) {
6330 case JIM_EXPROP_NUMBER
:
6331 case JIM_EXPROP_STRING
:
6332 case JIM_EXPROP_SUBST
:
6333 case JIM_EXPROP_VARIABLE
:
6334 case JIM_EXPROP_DICTSUGAR
:
6335 case JIM_EXPROP_COMMAND
:
6338 case JIM_EXPROP_NOT
:
6339 case JIM_EXPROP_BITNOT
:
6340 case JIM_EXPROP_UNARYMINUS
:
6341 case JIM_EXPROP_UNARYPLUS
:
6342 /* Unary operations */
6343 if (stacklen
< 1) return JIM_ERR
;
6345 case JIM_EXPROP_ADD
:
6346 case JIM_EXPROP_SUB
:
6347 case JIM_EXPROP_MUL
:
6348 case JIM_EXPROP_DIV
:
6349 case JIM_EXPROP_MOD
:
6352 case JIM_EXPROP_LTE
:
6353 case JIM_EXPROP_GTE
:
6354 case JIM_EXPROP_ROTL
:
6355 case JIM_EXPROP_ROTR
:
6356 case JIM_EXPROP_LSHIFT
:
6357 case JIM_EXPROP_RSHIFT
:
6358 case JIM_EXPROP_NUMEQ
:
6359 case JIM_EXPROP_NUMNE
:
6360 case JIM_EXPROP_STREQ
:
6361 case JIM_EXPROP_STRNE
:
6362 case JIM_EXPROP_BITAND
:
6363 case JIM_EXPROP_BITXOR
:
6364 case JIM_EXPROP_BITOR
:
6365 case JIM_EXPROP_LOGICAND
:
6366 case JIM_EXPROP_LOGICOR
:
6367 case JIM_EXPROP_POW
:
6368 /* binary operations */
6369 if (stacklen
< 2) return JIM_ERR
;
6373 Jim_Panic(NULL
,"Default opcode reached ExprCheckCorrectness");
6377 if (stacklen
!= 1) return JIM_ERR
;
6381 static void ExprShareLiterals(Jim_Interp
*interp
, ExprByteCode
*expr
,
6382 ScriptObj
*topLevelScript
)
6387 for (i
= 0; i
< expr
->len
; i
++) {
6388 Jim_Obj
*foundObjPtr
;
6390 if (expr
->obj
[i
] == NULL
) continue;
6391 foundObjPtr
= ScriptSearchLiteral(interp
, topLevelScript
,
6392 NULL
, expr
->obj
[i
]);
6393 if (foundObjPtr
!= NULL
) {
6394 Jim_IncrRefCount(foundObjPtr
);
6395 Jim_DecrRefCount(interp
, expr
->obj
[i
]);
6396 expr
->obj
[i
] = foundObjPtr
;
6401 /* This procedure converts every occurrence of || and && opereators
6402 * in lazy unary versions.
6404 * a b || is converted into:
6406 * a <offset> |L b |R
6408 * a b && is converted into:
6410 * a <offset> &L b &R
6412 * "|L" checks if 'a' is true:
6413 * 1) if it is true pushes 1 and skips <offset> istructions to reach
6414 * the opcode just after |R.
6415 * 2) if it is false does nothing.
6416 * "|R" checks if 'b' is true:
6417 * 1) if it is true pushes 1, otherwise pushes 0.
6419 * "&L" checks if 'a' is true:
6420 * 1) if it is true does nothing.
6421 * 2) If it is false pushes 0 and skips <offset> istructions to reach
6422 * the opcode just after &R
6423 * "&R" checks if 'a' is true:
6424 * if it is true pushes 1, otherwise pushes 0.
6426 static void ExprMakeLazy(Jim_Interp
*interp
, ExprByteCode
*expr
)
6429 int index
= -1, leftindex
, arity
, i
, offset
;
6430 Jim_ExprOperator
*op
;
6432 /* Search for || or && */
6433 for (i
= 0; i
< expr
->len
; i
++) {
6434 if (expr
->opcode
[i
] == JIM_EXPROP_LOGICAND
||
6435 expr
->opcode
[i
] == JIM_EXPROP_LOGICOR
) {
6440 if (index
== -1) return;
6441 /* Search for the end of the first operator */
6442 leftindex
= index
-1;
6445 switch(expr
->opcode
[leftindex
]) {
6446 case JIM_EXPROP_NUMBER
:
6447 case JIM_EXPROP_COMMAND
:
6448 case JIM_EXPROP_VARIABLE
:
6449 case JIM_EXPROP_DICTSUGAR
:
6450 case JIM_EXPROP_SUBST
:
6451 case JIM_EXPROP_STRING
:
6454 op
= JimExprOperatorInfoByOpcode(expr
->opcode
[i
]);
6456 Jim_Panic(interp
,"Default reached in ExprMakeLazy()");
6465 expr
->opcode
= Jim_Realloc(expr
->opcode
, sizeof(int)*(expr
->len
+2));
6466 expr
->obj
= Jim_Realloc(expr
->obj
, sizeof(Jim_Obj
*)*(expr
->len
+2));
6467 memmove(&expr
->opcode
[leftindex
+2], &expr
->opcode
[leftindex
],
6468 sizeof(int)*(expr
->len
-leftindex
));
6469 memmove(&expr
->obj
[leftindex
+2], &expr
->obj
[leftindex
],
6470 sizeof(Jim_Obj
*)*(expr
->len
-leftindex
));
6473 offset
= (index
-leftindex
)-1;
6474 Jim_DecrRefCount(interp
, expr
->obj
[index
]);
6475 if (expr
->opcode
[index
] == JIM_EXPROP_LOGICAND
) {
6476 expr
->opcode
[leftindex
+1] = JIM_EXPROP_LOGICAND_LEFT
;
6477 expr
->opcode
[index
] = JIM_EXPROP_LOGICAND_RIGHT
;
6478 expr
->obj
[leftindex
+1] = Jim_NewStringObj(interp
, "&L", -1);
6479 expr
->obj
[index
] = Jim_NewStringObj(interp
, "&R", -1);
6481 expr
->opcode
[leftindex
+1] = JIM_EXPROP_LOGICOR_LEFT
;
6482 expr
->opcode
[index
] = JIM_EXPROP_LOGICOR_RIGHT
;
6483 expr
->obj
[leftindex
+1] = Jim_NewStringObj(interp
, "|L", -1);
6484 expr
->obj
[index
] = Jim_NewStringObj(interp
, "|R", -1);
6486 expr
->opcode
[leftindex
] = JIM_EXPROP_NUMBER
;
6487 expr
->obj
[leftindex
] = Jim_NewIntObj(interp
, offset
);
6488 Jim_IncrRefCount(expr
->obj
[index
]);
6489 Jim_IncrRefCount(expr
->obj
[leftindex
]);
6490 Jim_IncrRefCount(expr
->obj
[leftindex
+1]);
6494 /* This method takes the string representation of an expression
6495 * and generates a program for the Expr's stack-based VM. */
6496 int SetExprFromAny(Jim_Interp
*interp
, struct Jim_Obj
*objPtr
)
6499 const char *exprText
= Jim_GetString(objPtr
, &exprTextLen
);
6500 struct JimParserCtx parser
;
6501 int i
, shareLiterals
;
6502 ExprByteCode
*expr
= Jim_Alloc(sizeof(*expr
));
6504 Jim_ExprOperator
*op
;
6506 /* Perform literal sharing with the current procedure
6507 * running only if this expression appears to be not generated
6509 shareLiterals
= objPtr
->typePtr
== &sourceObjType
;
6511 expr
->opcode
= NULL
;
6516 Jim_InitStack(&stack
);
6517 JimParserInit(&parser
, exprText
, exprTextLen
, 1);
6518 while(!JimParserEof(&parser
)) {
6522 if (JimParseExpression(&parser
) != JIM_OK
) {
6523 Jim_SetResultString(interp
, "Syntax error in expression", -1);
6526 token
= JimParserGetToken(&parser
, &len
, &type
, NULL
);
6527 if (type
== JIM_TT_EOL
) {
6533 ExprObjAddInstr(interp
, expr
, JIM_EXPROP_STRING
, token
, len
);
6536 ExprObjAddInstr(interp
, expr
, JIM_EXPROP_SUBST
, token
, len
);
6539 ExprObjAddInstr(interp
, expr
, JIM_EXPROP_VARIABLE
, token
, len
);
6541 case JIM_TT_DICTSUGAR
:
6542 ExprObjAddInstr(interp
, expr
, JIM_EXPROP_DICTSUGAR
, token
, len
);
6545 ExprObjAddInstr(interp
, expr
, JIM_EXPROP_COMMAND
, token
, len
);
6547 case JIM_TT_EXPR_NUMBER
:
6548 ExprObjAddInstr(interp
, expr
, JIM_EXPROP_NUMBER
, token
, len
);
6550 case JIM_TT_EXPR_OPERATOR
:
6551 op
= JimExprOperatorInfo(token
);
6553 Jim_ExprOperator
*stackTopOp
;
6555 if (Jim_StackPeek(&stack
) != NULL
) {
6556 stackTopOp
= JimExprOperatorInfo(Jim_StackPeek(&stack
));
6560 if (Jim_StackLen(&stack
) && op
->arity
!= 1 &&
6561 stackTopOp
&& stackTopOp
->precedence
>= op
->precedence
)
6563 ExprObjAddInstr(interp
, expr
, stackTopOp
->opcode
,
6564 Jim_StackPeek(&stack
), -1);
6565 Jim_StackPop(&stack
);
6570 Jim_StackPush(&stack
, token
);
6572 case JIM_TT_SUBEXPR_START
:
6573 Jim_StackPush(&stack
, Jim_StrDup("("));
6576 case JIM_TT_SUBEXPR_END
:
6579 while(Jim_StackLen(&stack
)) {
6580 char *opstr
= Jim_StackPop(&stack
);
6581 if (!strcmp(opstr
, "(")) {
6586 op
= JimExprOperatorInfo(opstr
);
6587 ExprObjAddInstr(interp
, expr
, op
->opcode
, opstr
, -1);
6590 Jim_SetResultString(interp
,
6591 "Unexpected close parenthesis", -1);
6598 Jim_Panic(interp
,"Default reached in SetExprFromAny()");
6602 while (Jim_StackLen(&stack
)) {
6603 char *opstr
= Jim_StackPop(&stack
);
6604 op
= JimExprOperatorInfo(opstr
);
6605 if (op
== NULL
&& !strcmp(opstr
, "(")) {
6607 Jim_SetResultString(interp
, "Missing close parenthesis", -1);
6610 ExprObjAddInstr(interp
, expr
, op
->opcode
, opstr
, -1);
6612 /* Check program correctness. */
6613 if (ExprCheckCorrectness(expr
) != JIM_OK
) {
6614 Jim_SetResultString(interp
, "Invalid expression", -1);
6618 /* Free the stack used for the compilation. */
6619 Jim_FreeStackElements(&stack
, Jim_Free
);
6620 Jim_FreeStack(&stack
);
6622 /* Convert || and && operators in unary |L |R and &L &R for lazyness */
6623 ExprMakeLazy(interp
, expr
);
6625 /* Perform literal sharing */
6626 if (shareLiterals
&& interp
->framePtr
->procBodyObjPtr
) {
6627 Jim_Obj
*bodyObjPtr
= interp
->framePtr
->procBodyObjPtr
;
6628 if (bodyObjPtr
->typePtr
== &scriptObjType
) {
6629 ScriptObj
*bodyScript
= bodyObjPtr
->internalRep
.ptr
;
6630 ExprShareLiterals(interp
, expr
, bodyScript
);
6634 /* Free the old internal rep and set the new one. */
6635 Jim_FreeIntRep(interp
, objPtr
);
6636 Jim_SetIntRepPtr(objPtr
, expr
);
6637 objPtr
->typePtr
= &exprObjType
;
6640 err
: /* we jump here on syntax/compile errors. */
6641 Jim_FreeStackElements(&stack
, Jim_Free
);
6642 Jim_FreeStack(&stack
);
6643 Jim_Free(expr
->opcode
);
6644 for (i
= 0; i
< expr
->len
; i
++) {
6645 Jim_DecrRefCount(interp
,expr
->obj
[i
]);
6647 Jim_Free(expr
->obj
);
6652 ExprByteCode
*Jim_GetExpression(Jim_Interp
*interp
, Jim_Obj
*objPtr
)
6654 if (objPtr
->typePtr
!= &exprObjType
) {
6655 if (SetExprFromAny(interp
, objPtr
) != JIM_OK
)
6658 return (ExprByteCode
*) Jim_GetIntRepPtr(objPtr
);
6661 /* -----------------------------------------------------------------------------
6662 * Expressions evaluation.
6663 * Jim uses a specialized stack-based virtual machine for expressions,
6664 * that takes advantage of the fact that expr's operators
6665 * can't be redefined.
6667 * Jim_EvalExpression() uses the bytecode compiled by
6668 * SetExprFromAny() method of the "expression" object.
6670 * On success a Tcl Object containing the result of the evaluation
6671 * is stored into expResultPtrPtr (having refcount of 1), and JIM_OK is
6673 * On error the function returns a retcode != to JIM_OK and set a suitable
6674 * error on the interp.
6675 * ---------------------------------------------------------------------------*/
6676 #define JIM_EE_STATICSTACK_LEN 10
6678 int Jim_EvalExpression(Jim_Interp
*interp
, Jim_Obj
*exprObjPtr
,
6679 Jim_Obj
**exprResultPtrPtr
)
6682 Jim_Obj
**stack
, *staticStack
[JIM_EE_STATICSTACK_LEN
];
6683 int stacklen
= 0, i
, error
= 0, errRetCode
= JIM_ERR
;
6685 Jim_IncrRefCount(exprObjPtr
);
6686 expr
= Jim_GetExpression(interp
, exprObjPtr
);
6688 Jim_DecrRefCount(interp
, exprObjPtr
);
6689 return JIM_ERR
; /* error in expression. */
6691 /* In order to avoid that the internal repr gets freed due to
6692 * shimmering of the exprObjPtr's object, we make the internal rep
6696 /* The stack-based expr VM itself */
6698 /* Stack allocation. Expr programs have the feature that
6699 * a program of length N can't require a stack longer than
6701 if (expr
->len
> JIM_EE_STATICSTACK_LEN
)
6702 stack
= Jim_Alloc(sizeof(Jim_Obj
*)*expr
->len
);
6704 stack
= staticStack
;
6706 /* Execute every istruction */
6707 for (i
= 0; i
< expr
->len
; i
++) {
6708 Jim_Obj
*A
, *B
, *objPtr
;
6709 jim_wide wA
, wB
, wC
;
6711 const char *sA
, *sB
;
6712 int Alen
, Blen
, retcode
;
6713 int opcode
= expr
->opcode
[i
];
6715 if (opcode
== JIM_EXPROP_NUMBER
|| opcode
== JIM_EXPROP_STRING
) {
6716 stack
[stacklen
++] = expr
->obj
[i
];
6717 Jim_IncrRefCount(expr
->obj
[i
]);
6718 } else if (opcode
== JIM_EXPROP_VARIABLE
) {
6719 objPtr
= Jim_GetVariable(interp
, expr
->obj
[i
], JIM_ERRMSG
);
6720 if (objPtr
== NULL
) {
6724 stack
[stacklen
++] = objPtr
;
6725 Jim_IncrRefCount(objPtr
);
6726 } else if (opcode
== JIM_EXPROP_SUBST
) {
6727 if ((retcode
= Jim_SubstObj(interp
, expr
->obj
[i
],
6728 &objPtr
, JIM_NONE
)) != JIM_OK
)
6731 errRetCode
= retcode
;
6734 stack
[stacklen
++] = objPtr
;
6735 Jim_IncrRefCount(objPtr
);
6736 } else if (opcode
== JIM_EXPROP_DICTSUGAR
) {
6737 objPtr
= Jim_ExpandDictSugar(interp
, expr
->obj
[i
]);
6738 if (objPtr
== NULL
) {
6742 stack
[stacklen
++] = objPtr
;
6743 Jim_IncrRefCount(objPtr
);
6744 } else if (opcode
== JIM_EXPROP_COMMAND
) {
6745 if ((retcode
= Jim_EvalObj(interp
, expr
->obj
[i
])) != JIM_OK
) {
6747 errRetCode
= retcode
;
6750 stack
[stacklen
++] = interp
->result
;
6751 Jim_IncrRefCount(interp
->result
);
6752 } else if (opcode
>= JIM_EXPROP_BINARY_NUM_FIRST
&&
6753 opcode
<= JIM_EXPROP_BINARY_NUM_LAST
)
6755 /* Note that there isn't to increment the
6756 * refcount of objects. the references are moved
6757 * from stack to A and B. */
6758 B
= stack
[--stacklen
];
6759 A
= stack
[--stacklen
];
6761 /* --- Integer --- */
6762 if ((A
->typePtr
== &doubleObjType
&& !A
->bytes
) ||
6763 (B
->typePtr
== &doubleObjType
&& !B
->bytes
) ||
6764 JimGetWideNoErr(interp
, A
, &wA
) != JIM_OK
||
6765 JimGetWideNoErr(interp
, B
, &wB
) != JIM_OK
) {
6768 Jim_DecrRefCount(interp
, A
);
6769 Jim_DecrRefCount(interp
, B
);
6770 switch(expr
->opcode
[i
]) {
6771 case JIM_EXPROP_ADD
: wC
= wA
+wB
; break;
6772 case JIM_EXPROP_SUB
: wC
= wA
-wB
; break;
6773 case JIM_EXPROP_MUL
: wC
= wA
*wB
; break;
6774 case JIM_EXPROP_LT
: wC
= wA
<wB
; break;
6775 case JIM_EXPROP_GT
: wC
= wA
>wB
; break;
6776 case JIM_EXPROP_LTE
: wC
= wA
<=wB
; break;
6777 case JIM_EXPROP_GTE
: wC
= wA
>=wB
; break;
6778 case JIM_EXPROP_LSHIFT
: wC
= wA
<<wB
; break;
6779 case JIM_EXPROP_RSHIFT
: wC
= wA
>>wB
; break;
6780 case JIM_EXPROP_NUMEQ
: wC
= wA
==wB
; break;
6781 case JIM_EXPROP_NUMNE
: wC
= wA
!=wB
; break;
6782 case JIM_EXPROP_BITAND
: wC
= wA
&wB
; break;
6783 case JIM_EXPROP_BITXOR
: wC
= wA
^wB
; break;
6784 case JIM_EXPROP_BITOR
: wC
= wA
|wB
; break;
6785 case JIM_EXPROP_POW
: wC
= JimPowWide(wA
,wB
); break;
6786 case JIM_EXPROP_LOGICAND_LEFT
:
6794 case JIM_EXPROP_LOGICOR_LEFT
:
6802 case JIM_EXPROP_DIV
:
6803 if (wB
== 0) goto divbyzero
;
6806 case JIM_EXPROP_MOD
:
6807 if (wB
== 0) goto divbyzero
;
6810 case JIM_EXPROP_ROTL
: {
6811 /* uint32_t would be better. But not everyone has inttypes.h?*/
6812 unsigned long uA
= (unsigned long)wA
;
6814 wC
= _rotl(uA
,(unsigned long)wB
);
6816 const unsigned int S
= sizeof(unsigned long) * 8;
6817 wC
= (unsigned long)((uA
<<wB
)|(uA
>>(S
-wB
)));
6821 case JIM_EXPROP_ROTR
: {
6822 unsigned long uA
= (unsigned long)wA
;
6824 wC
= _rotr(uA
,(unsigned long)wB
);
6826 const unsigned int S
= sizeof(unsigned long) * 8;
6827 wC
= (unsigned long)((uA
>>wB
)|(uA
<<(S
-wB
)));
6833 wC
= 0; /* avoid gcc warning */
6836 stack
[stacklen
] = Jim_NewIntObj(interp
, wC
);
6837 Jim_IncrRefCount(stack
[stacklen
]);
6841 /* --- Double --- */
6842 if (Jim_GetDouble(interp
, A
, &dA
) != JIM_OK
||
6843 Jim_GetDouble(interp
, B
, &dB
) != JIM_OK
) {
6844 Jim_DecrRefCount(interp
, A
);
6845 Jim_DecrRefCount(interp
, B
);
6849 Jim_DecrRefCount(interp
, A
);
6850 Jim_DecrRefCount(interp
, B
);
6851 switch(expr
->opcode
[i
]) {
6852 case JIM_EXPROP_ROTL
:
6853 case JIM_EXPROP_ROTR
:
6854 case JIM_EXPROP_LSHIFT
:
6855 case JIM_EXPROP_RSHIFT
:
6856 case JIM_EXPROP_BITAND
:
6857 case JIM_EXPROP_BITXOR
:
6858 case JIM_EXPROP_BITOR
:
6859 case JIM_EXPROP_MOD
:
6860 case JIM_EXPROP_POW
:
6861 Jim_SetResultString(interp
,
6862 "Got floating-point value where integer was expected", -1);
6866 case JIM_EXPROP_ADD
: dC
= dA
+dB
; break;
6867 case JIM_EXPROP_SUB
: dC
= dA
-dB
; break;
6868 case JIM_EXPROP_MUL
: dC
= dA
*dB
; break;
6869 case JIM_EXPROP_LT
: dC
= dA
<dB
; break;
6870 case JIM_EXPROP_GT
: dC
= dA
>dB
; break;
6871 case JIM_EXPROP_LTE
: dC
= dA
<=dB
; break;
6872 case JIM_EXPROP_GTE
: dC
= dA
>=dB
; break;
6873 case JIM_EXPROP_NUMEQ
: dC
= dA
==dB
; break;
6874 case JIM_EXPROP_NUMNE
: dC
= dA
!=dB
; break;
6875 case JIM_EXPROP_LOGICAND_LEFT
:
6883 case JIM_EXPROP_LOGICOR_LEFT
:
6891 case JIM_EXPROP_DIV
:
6892 if (dB
== 0) goto divbyzero
;
6896 dC
= 0; /* avoid gcc warning */
6899 stack
[stacklen
] = Jim_NewDoubleObj(interp
, dC
);
6900 Jim_IncrRefCount(stack
[stacklen
]);
6902 } else if (opcode
== JIM_EXPROP_STREQ
|| opcode
== JIM_EXPROP_STRNE
) {
6903 B
= stack
[--stacklen
];
6904 A
= stack
[--stacklen
];
6905 sA
= Jim_GetString(A
, &Alen
);
6906 sB
= Jim_GetString(B
, &Blen
);
6907 switch(expr
->opcode
[i
]) {
6908 case JIM_EXPROP_STREQ
:
6909 if (Alen
== Blen
&& memcmp(sA
, sB
, Alen
) ==0)
6914 case JIM_EXPROP_STRNE
:
6915 if (Alen
!= Blen
|| memcmp(sA
, sB
, Alen
) != 0)
6921 wC
= 0; /* avoid gcc warning */
6924 Jim_DecrRefCount(interp
, A
);
6925 Jim_DecrRefCount(interp
, B
);
6926 stack
[stacklen
] = Jim_NewIntObj(interp
, wC
);
6927 Jim_IncrRefCount(stack
[stacklen
]);
6929 } else if (opcode
== JIM_EXPROP_NOT
||
6930 opcode
== JIM_EXPROP_BITNOT
||
6931 opcode
== JIM_EXPROP_LOGICAND_RIGHT
||
6932 opcode
== JIM_EXPROP_LOGICOR_RIGHT
) {
6933 /* Note that there isn't to increment the
6934 * refcount of objects. the references are moved
6935 * from stack to A and B. */
6936 A
= stack
[--stacklen
];
6938 /* --- Integer --- */
6939 if ((A
->typePtr
== &doubleObjType
&& !A
->bytes
) ||
6940 JimGetWideNoErr(interp
, A
, &wA
) != JIM_OK
) {
6941 goto trydouble_unary
;
6943 Jim_DecrRefCount(interp
, A
);
6944 switch(expr
->opcode
[i
]) {
6945 case JIM_EXPROP_NOT
: wC
= !wA
; break;
6946 case JIM_EXPROP_BITNOT
: wC
= ~wA
; break;
6947 case JIM_EXPROP_LOGICAND_RIGHT
:
6948 case JIM_EXPROP_LOGICOR_RIGHT
: wC
= (wA
!= 0); break;
6950 wC
= 0; /* avoid gcc warning */
6953 stack
[stacklen
] = Jim_NewIntObj(interp
, wC
);
6954 Jim_IncrRefCount(stack
[stacklen
]);
6958 /* --- Double --- */
6959 if (Jim_GetDouble(interp
, A
, &dA
) != JIM_OK
) {
6960 Jim_DecrRefCount(interp
, A
);
6964 Jim_DecrRefCount(interp
, A
);
6965 switch(expr
->opcode
[i
]) {
6966 case JIM_EXPROP_NOT
: dC
= !dA
; break;
6967 case JIM_EXPROP_LOGICAND_RIGHT
:
6968 case JIM_EXPROP_LOGICOR_RIGHT
: dC
= (dA
!= 0); break;
6969 case JIM_EXPROP_BITNOT
:
6970 Jim_SetResultString(interp
,
6971 "Got floating-point value where integer was expected", -1);
6976 dC
= 0; /* avoid gcc warning */
6979 stack
[stacklen
] = Jim_NewDoubleObj(interp
, dC
);
6980 Jim_IncrRefCount(stack
[stacklen
]);
6983 Jim_Panic(interp
,"Unknown opcode in Jim_EvalExpression");
6987 /* There is no need to decerement the inUse field because
6988 * this reference is transfered back into the exprObjPtr. */
6989 Jim_FreeIntRep(interp
, exprObjPtr
);
6990 exprObjPtr
->typePtr
= &exprObjType
;
6991 Jim_SetIntRepPtr(exprObjPtr
, expr
);
6992 Jim_DecrRefCount(interp
, exprObjPtr
);
6994 *exprResultPtrPtr
= stack
[0];
6995 Jim_IncrRefCount(stack
[0]);
6996 errRetCode
= JIM_OK
;
6998 for (i
= 0; i
< stacklen
; i
++) {
6999 Jim_DecrRefCount(interp
, stack
[i
]);
7001 if (stack
!= staticStack
)
7006 Jim_SetResultString(interp
, "Division by zero", -1);
7010 int Jim_GetBoolFromExpr(Jim_Interp
*interp
, Jim_Obj
*exprObjPtr
, int *boolPtr
)
7015 Jim_Obj
*exprResultPtr
;
7017 retcode
= Jim_EvalExpression(interp
, exprObjPtr
, &exprResultPtr
);
7018 if (retcode
!= JIM_OK
)
7020 if (JimGetWideNoErr(interp
, exprResultPtr
, &wideValue
) != JIM_OK
) {
7021 if (Jim_GetDouble(interp
, exprResultPtr
, &doubleValue
) != JIM_OK
)
7023 Jim_DecrRefCount(interp
, exprResultPtr
);
7026 Jim_DecrRefCount(interp
, exprResultPtr
);
7027 *boolPtr
= doubleValue
!= 0;
7031 Jim_DecrRefCount(interp
, exprResultPtr
);
7032 *boolPtr
= wideValue
!= 0;
7036 /* -----------------------------------------------------------------------------
7037 * ScanFormat String Object
7038 * ---------------------------------------------------------------------------*/
7040 /* This Jim_Obj will held a parsed representation of a format string passed to
7041 * the Jim_ScanString command. For error diagnostics, the scanformat string has
7042 * to be parsed in its entirely first and then, if correct, can be used for
7043 * scanning. To avoid endless re-parsing, the parsed representation will be
7044 * stored in an internal representation and re-used for performance reason. */
7046 /* A ScanFmtPartDescr will held the information of /one/ part of the whole
7047 * scanformat string. This part will later be used to extract information
7048 * out from the string to be parsed by Jim_ScanString */
7050 typedef struct ScanFmtPartDescr
{
7051 char type
; /* Type of conversion (e.g. c, d, f) */
7052 char modifier
; /* Modify type (e.g. l - long, h - short */
7053 size_t width
; /* Maximal width of input to be converted */
7054 int pos
; /* -1 - no assign, 0 - natural pos, >0 - XPG3 pos */
7055 char *arg
; /* Specification of a CHARSET conversion */
7056 char *prefix
; /* Prefix to be scanned literally before conversion */
7059 /* The ScanFmtStringObj will held the internal representation of a scanformat
7060 * string parsed and separated in part descriptions. Furthermore it contains
7061 * the original string representation of the scanformat string to allow for
7062 * fast update of the Jim_Obj's string representation part.
7064 * As add-on the internal object representation add some scratch pad area
7065 * for usage by Jim_ScanString to avoid endless allocating and freeing of
7066 * memory for purpose of string scanning.
7068 * The error member points to a static allocated string in case of a mal-
7069 * formed scanformat string or it contains '0' (NULL) in case of a valid
7070 * parse representation.
7072 * The whole memory of the internal representation is allocated as a single
7073 * area of memory that will be internally separated. So freeing and duplicating
7074 * of such an object is cheap */
7076 typedef struct ScanFmtStringObj
{
7077 jim_wide size
; /* Size of internal repr in bytes */
7078 char *stringRep
; /* Original string representation */
7079 size_t count
; /* Number of ScanFmtPartDescr contained */
7080 size_t convCount
; /* Number of conversions that will assign */
7081 size_t maxPos
; /* Max position index if XPG3 is used */
7082 const char *error
; /* Ptr to error text (NULL if no error */
7083 char *scratch
; /* Some scratch pad used by Jim_ScanString */
7084 ScanFmtPartDescr descr
[1]; /* The vector of partial descriptions */
7088 static void FreeScanFmtInternalRep(Jim_Interp
*interp
, Jim_Obj
*objPtr
);
7089 static void DupScanFmtInternalRep(Jim_Interp
*interp
, Jim_Obj
*srcPtr
, Jim_Obj
*dupPtr
);
7090 static void UpdateStringOfScanFmt(Jim_Obj
*objPtr
);
7092 static Jim_ObjType scanFmtStringObjType
= {
7094 FreeScanFmtInternalRep
,
7095 DupScanFmtInternalRep
,
7096 UpdateStringOfScanFmt
,
7100 void FreeScanFmtInternalRep(Jim_Interp
*interp
, Jim_Obj
*objPtr
)
7102 JIM_NOTUSED(interp
);
7103 Jim_Free((char*)objPtr
->internalRep
.ptr
);
7104 objPtr
->internalRep
.ptr
= 0;
7107 void DupScanFmtInternalRep(Jim_Interp
*interp
, Jim_Obj
*srcPtr
, Jim_Obj
*dupPtr
)
7109 size_t size
= (size_t)((ScanFmtStringObj
*)srcPtr
->internalRep
.ptr
)->size
;
7110 ScanFmtStringObj
*newVec
= (ScanFmtStringObj
*)Jim_Alloc(size
);
7112 JIM_NOTUSED(interp
);
7113 memcpy(newVec
, srcPtr
->internalRep
.ptr
, size
);
7114 dupPtr
->internalRep
.ptr
= newVec
;
7115 dupPtr
->typePtr
= &scanFmtStringObjType
;
7118 void UpdateStringOfScanFmt(Jim_Obj
*objPtr
)
7120 char *bytes
= ((ScanFmtStringObj
*)objPtr
->internalRep
.ptr
)->stringRep
;
7122 objPtr
->bytes
= Jim_StrDup(bytes
);
7123 objPtr
->length
= strlen(bytes
);
7126 /* SetScanFmtFromAny will parse a given string and create the internal
7127 * representation of the format specification. In case of an error
7128 * the error data member of the internal representation will be set
7129 * to an descriptive error text and the function will be left with
7130 * JIM_ERR to indicate unsucessful parsing (aka. malformed scanformat
7133 static int SetScanFmtFromAny(Jim_Interp
*interp
, Jim_Obj
*objPtr
)
7135 ScanFmtStringObj
*fmtObj
;
7137 int maxCount
, i
, approxSize
, lastPos
= -1;
7138 const char *fmt
= objPtr
->bytes
;
7139 int maxFmtLen
= objPtr
->length
;
7140 const char *fmtEnd
= fmt
+ maxFmtLen
;
7143 Jim_FreeIntRep(interp
, objPtr
);
7144 /* Count how many conversions could take place maximally */
7145 for (i
=0, maxCount
=0; i
< maxFmtLen
; ++i
)
7148 /* Calculate an approximation of the memory necessary */
7149 approxSize
= sizeof(ScanFmtStringObj
) /* Size of the container */
7150 + (maxCount
+ 1) * sizeof(ScanFmtPartDescr
) /* Size of all partials */
7151 + maxFmtLen
* sizeof(char) + 3 + 1 /* Scratch + "%n" + '\0' */
7152 + maxFmtLen
* sizeof(char) + 1 /* Original stringrep */
7153 + maxFmtLen
* sizeof(char) /* Arg for CHARSETs */
7154 + (maxCount
+1) * sizeof(char) /* '\0' for every partial */
7155 + 1; /* safety byte */
7156 fmtObj
= (ScanFmtStringObj
*)Jim_Alloc(approxSize
);
7157 memset(fmtObj
, 0, approxSize
);
7158 fmtObj
->size
= approxSize
;
7160 fmtObj
->scratch
= (char*)&fmtObj
->descr
[maxCount
+1];
7161 fmtObj
->stringRep
= fmtObj
->scratch
+ maxFmtLen
+ 3 + 1;
7162 memcpy(fmtObj
->stringRep
, fmt
, maxFmtLen
);
7163 buffer
= fmtObj
->stringRep
+ maxFmtLen
+ 1;
7164 objPtr
->internalRep
.ptr
= fmtObj
;
7165 objPtr
->typePtr
= &scanFmtStringObjType
;
7166 for (i
=0, curr
=0; fmt
< fmtEnd
; ++fmt
) {
7168 ScanFmtPartDescr
*descr
= &fmtObj
->descr
[curr
];
7170 descr
->width
= 0; /* Assume width unspecified */
7171 /* Overread and store any "literal" prefix */
7172 if (*fmt
!= '%' || fmt
[1] == '%') {
7174 descr
->prefix
= &buffer
[i
];
7175 for (; fmt
< fmtEnd
; ++fmt
) {
7177 if (fmt
[1] != '%') break;
7184 /* Skip the conversion introducing '%' sign */
7186 /* End reached due to non-conversion literal only? */
7189 descr
->pos
= 0; /* Assume "natural" positioning */
7191 descr
->pos
= -1; /* Okay, conversion will not be assigned */
7194 fmtObj
->convCount
++; /* Otherwise count as assign-conversion */
7195 /* Check if next token is a number (could be width or pos */
7196 if (sscanf(fmt
, "%d%n", &width
, &skip
) == 1) {
7198 /* Was the number a XPG3 position specifier? */
7199 if (descr
->pos
!= -1 && *fmt
== '$') {
7204 /* Look if "natural" postioning and XPG3 one was mixed */
7205 if ((lastPos
== 0 && descr
->pos
> 0)
7206 || (lastPos
> 0 && descr
->pos
== 0)) {
7207 fmtObj
->error
= "cannot mix \"%\" and \"%n$\" conversion specifiers";
7210 /* Look if this position was already used */
7211 for (prev
=0; prev
< curr
; ++prev
) {
7212 if (fmtObj
->descr
[prev
].pos
== -1) continue;
7213 if (fmtObj
->descr
[prev
].pos
== descr
->pos
) {
7214 fmtObj
->error
= "same \"%n$\" conversion specifier "
7215 "used more than once";
7219 /* Try to find a width after the XPG3 specifier */
7220 if (sscanf(fmt
, "%d%n", &width
, &skip
) == 1) {
7221 descr
->width
= width
;
7224 if (descr
->pos
> 0 && (size_t)descr
->pos
> fmtObj
->maxPos
)
7225 fmtObj
->maxPos
= descr
->pos
;
7227 /* Number was not a XPG3, so it has to be a width */
7228 descr
->width
= width
;
7231 /* If positioning mode was undetermined yet, fix this */
7233 lastPos
= descr
->pos
;
7234 /* Handle CHARSET conversion type ... */
7236 int swapped
= 1, beg
= i
, end
, j
;
7238 descr
->arg
= &buffer
[i
];
7240 if (*fmt
== '^') buffer
[i
++] = *fmt
++;
7241 if (*fmt
== ']') buffer
[i
++] = *fmt
++;
7242 while (*fmt
&& *fmt
!= ']') buffer
[i
++] = *fmt
++;
7244 fmtObj
->error
= "unmatched [ in format string";
7249 /* In case a range fence was given "backwards", swap it */
7252 for (j
=beg
+1; j
< end
-1; ++j
) {
7253 if (buffer
[j
] == '-' && buffer
[j
-1] > buffer
[j
+1]) {
7254 char tmp
= buffer
[j
-1];
7255 buffer
[j
-1] = buffer
[j
+1];
7262 /* Remember any valid modifier if given */
7263 if (strchr("hlL", *fmt
) != 0)
7264 descr
->modifier
= tolower((int)*fmt
++);
7267 if (strchr("efgcsndoxui", *fmt
) == 0) {
7268 fmtObj
->error
= "bad scan conversion character";
7270 } else if (*fmt
== 'c' && descr
->width
!= 0) {
7271 fmtObj
->error
= "field width may not be specified in %c "
7274 } else if (*fmt
== 'u' && descr
->modifier
== 'l') {
7275 fmtObj
->error
= "unsigned wide not supported";
7282 if (fmtObj
->convCount
== 0) {
7283 fmtObj
->error
= "no any conversion specifier given";
7289 /* Some accessor macros to allow lowlevel access to fields of internal repr */
7291 #define FormatGetCnvCount(_fo_) \
7292 ((ScanFmtStringObj*)((_fo_)->internalRep.ptr))->convCount
7293 #define FormatGetMaxPos(_fo_) \
7294 ((ScanFmtStringObj*)((_fo_)->internalRep.ptr))->maxPos
7295 #define FormatGetError(_fo_) \
7296 ((ScanFmtStringObj*)((_fo_)->internalRep.ptr))->error
7298 /* Some Bit testing/setting/cleaning routines. For now only used in handling
7299 * charsets ([a-z123]) within scanning. Later on perhaps a base for a
7300 * bitvector implementation in Jim? */
7302 static int JimTestBit(const char *bitvec
, char ch
)
7304 div_t pos
= div(ch
-1, 8);
7305 return bitvec
[pos
.quot
] & (1 << pos
.rem
);
7308 static void JimSetBit(char *bitvec
, char ch
)
7310 div_t pos
= div(ch
-1, 8);
7311 bitvec
[pos
.quot
] |= (1 << pos
.rem
);
7314 #if 0 /* currently not used */
7315 static void JimClearBit(char *bitvec
, char ch
)
7317 div_t pos
= div(ch
-1, 8);
7318 bitvec
[pos
.quot
] &= ~(1 << pos
.rem
);
7322 /* JimScanAString is used to scan an unspecified string that ends with
7323 * next WS, or a string that is specified via a charset. The charset
7324 * is currently implemented in a way to only allow for usage with
7325 * ASCII. Whenever we will switch to UNICODE, another idea has to
7328 * FIXME: Works only with ASCII */
7331 JimScanAString(Jim_Interp
*interp
, const char *sdescr
, const char *str
)
7335 char charset
[256/8+1]; /* A Charset may contain max 256 chars */
7336 char *buffer
= Jim_Alloc(strlen(str
)+1), *anchor
= buffer
;
7338 /* First init charset to nothing or all, depending if a specified
7339 * or an unspecified string has to be parsed */
7340 memset(charset
, (sdescr
? 0 : 255), sizeof(charset
));
7342 /* There was a set description given, that means we are parsing
7343 * a specified string. So we have to build a corresponding
7344 * charset reflecting the description */
7346 /* Should the set be negated at the end? */
7347 if (*sdescr
== '^') {
7351 /* Here '-' is meant literally and not to define a range */
7352 if (*sdescr
== '-') {
7353 JimSetBit(charset
, '-');
7357 if (sdescr
[1] == '-' && sdescr
[2] != 0) {
7358 /* Handle range definitions */
7360 for (i
=sdescr
[0]; i
<= sdescr
[2]; ++i
)
7361 JimSetBit(charset
, (char)i
);
7364 /* Handle verbatim character definitions */
7365 JimSetBit(charset
, *sdescr
++);
7368 /* Negate the charset if there was a NOT given */
7369 for (i
=0; notFlag
&& i
< sizeof(charset
); ++i
)
7370 charset
[i
] = ~charset
[i
];
7372 /* And after all the mess above, the real work begin ... */
7373 while (str
&& *str
) {
7374 if (!sdescr
&& isspace((int)*str
))
7375 break; /* EOS via WS if unspecified */
7376 if (JimTestBit(charset
, *str
)) *buffer
++ = *str
++;
7377 else break; /* EOS via mismatch if specified scanning */
7379 *buffer
= 0; /* Close the string properly ... */
7380 result
= Jim_NewStringObj(interp
, anchor
, -1);
7381 Jim_Free(anchor
); /* ... and free it afer usage */
7385 /* ScanOneEntry will scan one entry out of the string passed as argument.
7386 * It use the sscanf() function for this task. After extracting and
7387 * converting of the value, the count of scanned characters will be
7388 * returned of -1 in case of no conversion tool place and string was
7389 * already scanned thru */
7391 static int ScanOneEntry(Jim_Interp
*interp
, const char *str
, long pos
,
7392 ScanFmtStringObj
*fmtObj
, long index
, Jim_Obj
**valObjPtr
)
7394 # define MAX_SIZE (sizeof(jim_wide) > sizeof(double) \
7395 ? sizeof(jim_wide) \
7397 char buffer
[MAX_SIZE
];
7398 char *value
= buffer
;
7400 const ScanFmtPartDescr
*descr
= &fmtObj
->descr
[index
];
7401 size_t sLen
= strlen(&str
[pos
]), scanned
= 0;
7402 size_t anchor
= pos
;
7405 /* First pessimiticly assume, we will not scan anything :-) */
7407 if (descr
->prefix
) {
7408 /* There was a prefix given before the conversion, skip it and adjust
7409 * the string-to-be-parsed accordingly */
7410 for (i
=0; str
[pos
] && descr
->prefix
[i
]; ++i
) {
7411 /* If prefix require, skip WS */
7412 if (isspace((int)descr
->prefix
[i
]))
7413 while (str
[pos
] && isspace((int)str
[pos
])) ++pos
;
7414 else if (descr
->prefix
[i
] != str
[pos
])
7415 break; /* Prefix do not match here, leave the loop */
7417 ++pos
; /* Prefix matched so far, next round */
7420 return -1; /* All of str consumed: EOF condition */
7421 else if (descr
->prefix
[i
] != 0)
7422 return 0; /* Not whole prefix consumed, no conversion possible */
7424 /* For all but following conversion, skip leading WS */
7425 if (descr
->type
!= 'c' && descr
->type
!= '[' && descr
->type
!= 'n')
7426 while (isspace((int)str
[pos
])) ++pos
;
7427 /* Determine how much skipped/scanned so far */
7428 scanned
= pos
- anchor
;
7429 if (descr
->type
== 'n') {
7430 /* Return pseudo conversion means: how much scanned so far? */
7431 *valObjPtr
= Jim_NewIntObj(interp
, anchor
+ scanned
);
7432 } else if (str
[pos
] == 0) {
7433 /* Cannot scan anything, as str is totally consumed */
7436 /* Processing of conversions follows ... */
7437 if (descr
->width
> 0) {
7438 /* Do not try to scan as fas as possible but only the given width.
7439 * To ensure this, we copy the part that should be scanned. */
7440 size_t tLen
= descr
->width
> sLen
? sLen
: descr
->width
;
7441 tok
= Jim_StrDupLen(&str
[pos
], tLen
);
7443 /* As no width was given, simply refer to the original string */
7446 switch (descr
->type
) {
7448 *valObjPtr
= Jim_NewIntObj(interp
, *tok
);
7451 case 'd': case 'o': case 'x': case 'u': case 'i': {
7452 char *endp
; /* Position where the number finished */
7453 int base
= descr
->type
== 'o' ? 8
7454 : descr
->type
== 'x' ? 16
7455 : descr
->type
== 'i' ? 0
7459 /* Try to scan a number with the given base */
7460 if (descr
->modifier
== 'l')
7461 #ifdef HAVE_LONG_LONG
7462 *(jim_wide
*)value
= JimStrtoll(tok
, &endp
, base
);
7464 *(jim_wide
*)value
= strtol(tok
, &endp
, base
);
7467 if (descr
->type
== 'u')
7468 *(long*)value
= strtoul(tok
, &endp
, base
);
7470 *(long*)value
= strtol(tok
, &endp
, base
);
7471 /* If scanning failed, and base was undetermined, simply
7472 * put it to 10 and try once more. This should catch the
7473 * case where %i begin to parse a number prefix (e.g.
7474 * '0x' but no further digits follows. This will be
7475 * handled as a ZERO followed by a char 'x' by Tcl */
7476 if (endp
== tok
&& base
== 0) base
= 10;
7480 /* There was some number sucessfully scanned! */
7481 if (descr
->modifier
== 'l')
7482 *valObjPtr
= Jim_NewIntObj(interp
, *(jim_wide
*)value
);
7484 *valObjPtr
= Jim_NewIntObj(interp
, *(long*)value
);
7485 /* Adjust the number-of-chars scanned so far */
7486 scanned
+= endp
- tok
;
7488 /* Nothing was scanned. We have to determine if this
7489 * happened due to e.g. prefix mismatch or input str
7491 scanned
= *tok
? 0 : -1;
7495 case 's': case '[': {
7496 *valObjPtr
= JimScanAString(interp
, descr
->arg
, tok
);
7497 scanned
+= Jim_Length(*valObjPtr
);
7500 case 'e': case 'f': case 'g': {
7503 *(double*)value
= strtod(tok
, &endp
);
7505 /* There was some number sucessfully scanned! */
7506 *valObjPtr
= Jim_NewDoubleObj(interp
, *(double*)value
);
7507 /* Adjust the number-of-chars scanned so far */
7508 scanned
+= endp
- tok
;
7510 /* Nothing was scanned. We have to determine if this
7511 * happened due to e.g. prefix mismatch or input str
7513 scanned
= *tok
? 0 : -1;
7518 /* If a substring was allocated (due to pre-defined width) do not
7519 * forget to free it */
7520 if (tok
!= &str
[pos
])
7521 Jim_Free((char*)tok
);
7526 /* Jim_ScanString is the workhorse of string scanning. It will scan a given
7527 * string and returns all converted (and not ignored) values in a list back
7528 * to the caller. If an error occured, a NULL pointer will be returned */
7530 Jim_Obj
*Jim_ScanString(Jim_Interp
*interp
, Jim_Obj
*strObjPtr
,
7531 Jim_Obj
*fmtObjPtr
, int flags
)
7535 const char *str
= Jim_GetString(strObjPtr
, 0);
7536 Jim_Obj
*resultList
= 0;
7537 Jim_Obj
**resultVec
;
7539 Jim_Obj
*emptyStr
= 0;
7540 ScanFmtStringObj
*fmtObj
;
7542 /* If format specification is not an object, convert it! */
7543 if (fmtObjPtr
->typePtr
!= &scanFmtStringObjType
)
7544 SetScanFmtFromAny(interp
, fmtObjPtr
);
7545 fmtObj
= (ScanFmtStringObj
*)fmtObjPtr
->internalRep
.ptr
;
7546 /* Check if format specification was valid */
7547 if (fmtObj
->error
!= 0) {
7548 if (flags
& JIM_ERRMSG
)
7549 Jim_SetResultString(interp
, fmtObj
->error
, -1);
7552 /* Allocate a new "shared" empty string for all unassigned conversions */
7553 emptyStr
= Jim_NewEmptyStringObj(interp
);
7554 Jim_IncrRefCount(emptyStr
);
7555 /* Create a list and fill it with empty strings up to max specified XPG3 */
7556 resultList
= Jim_NewListObj(interp
, 0, 0);
7557 if (fmtObj
->maxPos
> 0) {
7558 for (i
=0; i
< fmtObj
->maxPos
; ++i
)
7559 Jim_ListAppendElement(interp
, resultList
, emptyStr
);
7560 JimListGetElements(interp
, resultList
, &resultc
, &resultVec
);
7562 /* Now handle every partial format description */
7563 for (i
=0, pos
=0; i
< fmtObj
->count
; ++i
) {
7564 ScanFmtPartDescr
*descr
= &(fmtObj
->descr
[i
]);
7566 /* Only last type may be "literal" w/o conversion - skip it! */
7567 if (descr
->type
== 0) continue;
7568 /* As long as any conversion could be done, we will proceed */
7570 scanned
= ScanOneEntry(interp
, str
, pos
, fmtObj
, i
, &value
);
7571 /* In case our first try results in EOF, we will leave */
7572 if (scanned
== -1 && i
== 0)
7574 /* Advance next pos-to-be-scanned for the amount scanned already */
7576 /* value == 0 means no conversion took place so take empty string */
7578 value
= Jim_NewEmptyStringObj(interp
);
7579 /* If value is a non-assignable one, skip it */
7580 if (descr
->pos
== -1) {
7581 Jim_FreeNewObj(interp
, value
);
7582 } else if (descr
->pos
== 0)
7583 /* Otherwise append it to the result list if no XPG3 was given */
7584 Jim_ListAppendElement(interp
, resultList
, value
);
7585 else if (resultVec
[descr
->pos
-1] == emptyStr
) {
7586 /* But due to given XPG3, put the value into the corr. slot */
7587 Jim_DecrRefCount(interp
, resultVec
[descr
->pos
-1]);
7588 Jim_IncrRefCount(value
);
7589 resultVec
[descr
->pos
-1] = value
;
7591 /* Otherwise, the slot was already used - free obj and ERROR */
7592 Jim_FreeNewObj(interp
, value
);
7596 Jim_DecrRefCount(interp
, emptyStr
);
7599 Jim_DecrRefCount(interp
, emptyStr
);
7600 Jim_FreeNewObj(interp
, resultList
);
7601 return (Jim_Obj
*)EOF
;
7603 Jim_DecrRefCount(interp
, emptyStr
);
7604 Jim_FreeNewObj(interp
, resultList
);
7608 /* -----------------------------------------------------------------------------
7609 * Pseudo Random Number Generation
7610 * ---------------------------------------------------------------------------*/
7611 static void JimPrngSeed(Jim_Interp
*interp
, const unsigned char *seed
,
7614 /* Initialize the sbox with the numbers from 0 to 255 */
7615 static void JimPrngInit(Jim_Interp
*interp
)
7618 unsigned int seed
[256];
7620 interp
->prngState
= Jim_Alloc(sizeof(Jim_PrngState
));
7621 for (i
= 0; i
< 256; i
++)
7622 seed
[i
] = (rand() ^ time(NULL
) ^ clock());
7623 JimPrngSeed(interp
, (unsigned char*) seed
, sizeof(int)*256);
7626 /* Generates N bytes of random data */
7627 static void JimRandomBytes(Jim_Interp
*interp
, void *dest
, unsigned int len
)
7629 Jim_PrngState
*prng
;
7630 unsigned char *destByte
= (unsigned char*) dest
;
7631 unsigned int si
, sj
, x
;
7633 /* initialization, only needed the first time */
7634 if (interp
->prngState
== NULL
)
7635 JimPrngInit(interp
);
7636 prng
= interp
->prngState
;
7637 /* generates 'len' bytes of pseudo-random numbers */
7638 for (x
= 0; x
< len
; x
++) {
7639 prng
->i
= (prng
->i
+1) & 0xff;
7640 si
= prng
->sbox
[prng
->i
];
7641 prng
->j
= (prng
->j
+ si
) & 0xff;
7642 sj
= prng
->sbox
[prng
->j
];
7643 prng
->sbox
[prng
->i
] = sj
;
7644 prng
->sbox
[prng
->j
] = si
;
7645 *destByte
++ = prng
->sbox
[(si
+sj
)&0xff];
7649 /* Re-seed the generator with user-provided bytes */
7650 static void JimPrngSeed(Jim_Interp
*interp
, const unsigned char *seed
,
7654 unsigned char buf
[256];
7655 Jim_PrngState
*prng
;
7657 /* initialization, only needed the first time */
7658 if (interp
->prngState
== NULL
)
7659 JimPrngInit(interp
);
7660 prng
= interp
->prngState
;
7662 /* Set the sbox[i] with i */
7663 for (i
= 0; i
< 256; i
++)
7665 /* Now use the seed to perform a random permutation of the sbox */
7666 for (i
= 0; i
< seedLen
; i
++) {
7669 t
= prng
->sbox
[i
&0xFF];
7670 prng
->sbox
[i
&0xFF] = prng
->sbox
[seed
[i
]];
7671 prng
->sbox
[seed
[i
]] = t
;
7673 prng
->i
= prng
->j
= 0;
7674 /* discard the first 256 bytes of stream. */
7675 JimRandomBytes(interp
, buf
, 256);
7678 /* -----------------------------------------------------------------------------
7679 * Dynamic libraries support (WIN32 not supported)
7680 * ---------------------------------------------------------------------------*/
7685 void * dlopen(const char *path
, int mode
)
7689 return (void *)LoadLibraryA(path
);
7691 int dlclose(void *handle
)
7693 FreeLibrary((HANDLE
)handle
);
7696 void *dlsym(void *handle
, const char *symbol
)
7698 return GetProcAddress((HMODULE
)handle
, symbol
);
7700 static char win32_dlerror_string
[121];
7701 const char *dlerror()
7703 FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM
, NULL
, GetLastError(),
7704 LANG_NEUTRAL
, win32_dlerror_string
, 120, NULL
);
7705 return win32_dlerror_string
;
7709 int Jim_LoadLibrary(Jim_Interp
*interp
, const char *pathName
)
7711 Jim_Obj
*libPathObjPtr
;
7714 int (*onload
)(Jim_Interp
*interp
);
7716 libPathObjPtr
= Jim_GetGlobalVariableStr(interp
, "jim_libpath", JIM_NONE
);
7717 if (libPathObjPtr
== NULL
) {
7719 libPathObjPtr
= NULL
;
7721 Jim_IncrRefCount(libPathObjPtr
);
7722 Jim_ListLength(interp
, libPathObjPtr
, &prefixc
);
7725 for (i
= -1; i
< prefixc
; i
++) {
7727 handle
= dlopen(pathName
, RTLD_LAZY
);
7730 char buf
[JIM_PATH_LEN
];
7733 Jim_Obj
*prefixObjPtr
;
7736 if (Jim_ListIndex(interp
, libPathObjPtr
, i
,
7737 &prefixObjPtr
, JIM_NONE
) != JIM_OK
)
7739 prefix
= Jim_GetString(prefixObjPtr
, NULL
);
7740 prefixlen
= strlen(prefix
);
7741 if (prefixlen
+strlen(pathName
)+1 >= JIM_PATH_LEN
)
7743 if (prefixlen
&& prefix
[prefixlen
-1] == '/')
7744 sprintf(buf
, "%s%s", prefix
, pathName
);
7746 sprintf(buf
, "%s/%s", prefix
, pathName
);
7747 printf("opening '%s'\n", buf
);
7748 fp
= fopen(buf
, "r");
7752 handle
= dlopen(buf
, RTLD_LAZY
);
7753 printf("got handle %p\n", handle
);
7755 if (handle
== NULL
) {
7756 Jim_SetResult(interp
, Jim_NewEmptyStringObj(interp
));
7757 Jim_AppendStrings(interp
, Jim_GetResult(interp
),
7758 "error loading extension \"", pathName
,
7759 "\": ", dlerror(), NULL
);
7764 if ((onload
= dlsym(handle
, "Jim_OnLoad")) == NULL
) {
7765 Jim_SetResultString(interp
,
7766 "No Jim_OnLoad symbol found on extension", -1);
7769 if (onload(interp
) == JIM_ERR
) {
7773 Jim_SetEmptyResult(interp
);
7774 if (libPathObjPtr
!= NULL
)
7775 Jim_DecrRefCount(interp
, libPathObjPtr
);
7779 if (libPathObjPtr
!= NULL
)
7780 Jim_DecrRefCount(interp
, libPathObjPtr
);
7783 #else /* JIM_DYNLIB */
7784 int Jim_LoadLibrary(Jim_Interp
*interp
, const char *pathName
)
7786 JIM_NOTUSED(interp
);
7787 JIM_NOTUSED(pathName
);
7789 Jim_SetResultString(interp
, "the Jim binary has no support for [load]", -1);
7792 #endif/* JIM_DYNLIB */
7794 /* -----------------------------------------------------------------------------
7796 * ---------------------------------------------------------------------------*/
7798 #define JIM_PKG_ANY_VERSION -1
7800 /* Convert a string of the type "1.2" into an integer.
7801 * MAJOR.MINOR is converted as MAJOR*100+MINOR, so "1.2" is converted
7802 * to the integer with value 102 */
7803 static int JimPackageVersionToInt(Jim_Interp
*interp
, const char *v
,
7804 int *intPtr
, int flags
)
7807 jim_wide major
, minor
;
7808 char *majorStr
, *minorStr
, *p
;
7811 *intPtr
= JIM_PKG_ANY_VERSION
;
7815 copy
= Jim_StrDup(v
);
7816 p
= strchr(copy
, '.');
7817 if (p
== NULL
) goto badfmt
;
7822 if (Jim_StringToWide(majorStr
, &major
, 10) != JIM_OK
||
7823 Jim_StringToWide(minorStr
, &minor
, 10) != JIM_OK
)
7825 *intPtr
= (int)(major
*100+minor
);
7831 if (flags
& JIM_ERRMSG
) {
7832 Jim_SetResult(interp
, Jim_NewEmptyStringObj(interp
));
7833 Jim_AppendStrings(interp
, Jim_GetResult(interp
),
7834 "invalid package version '", v
, "'", NULL
);
7839 #define JIM_MATCHVER_EXACT (1<<JIM_PRIV_FLAG_SHIFT)
7840 static int JimPackageMatchVersion(int needed
, int actual
, int flags
)
7842 if (needed
== JIM_PKG_ANY_VERSION
) return 1;
7843 if (flags
& JIM_MATCHVER_EXACT
) {
7844 return needed
== actual
;
7846 return needed
/100 == actual
/100 && (needed
<= actual
);
7850 int Jim_PackageProvide(Jim_Interp
*interp
, const char *name
, const char *ver
,
7854 /* Check if the version format is ok */
7855 if (JimPackageVersionToInt(interp
, ver
, &intVersion
, JIM_ERRMSG
) != JIM_OK
)
7857 /* If the package was already provided returns an error. */
7858 if (Jim_FindHashEntry(&interp
->packages
, name
) != NULL
) {
7859 if (flags
& JIM_ERRMSG
) {
7860 Jim_SetResult(interp
, Jim_NewEmptyStringObj(interp
));
7861 Jim_AppendStrings(interp
, Jim_GetResult(interp
),
7862 "package '", name
, "' was already provided", NULL
);
7866 Jim_AddHashEntry(&interp
->packages
, name
, (char*) ver
);
7873 # include <sys/types.h>
7874 # include <dirent.h>
7877 /* Posix dirent.h compatiblity layer for WIN32.
7878 * Copyright Kevlin Henney, 1997, 2003. All rights reserved.
7879 * Copyright Salvatore Sanfilippo ,2005.
7881 * Permission to use, copy, modify, and distribute this software and its
7882 * documentation for any purpose is hereby granted without fee, provided
7883 * that this copyright and permissions notice appear in all copies and
7886 * This software is supplied "as is" without express or implied warranty.
7887 * This software was modified by Salvatore Sanfilippo for the Jim Interpreter.
7894 typedef struct DIR {
7895 long handle
; /* -1 for failed rewind */
7896 struct _finddata_t info
;
7897 struct dirent result
; /* d_name null iff first time */
7898 char *name
; /* null-terminated char string */
7901 DIR *opendir(const char *name
)
7905 if(name
&& name
[0]) {
7906 size_t base_length
= strlen(name
);
7907 const char *all
= /* search pattern must end with suitable wildcard */
7908 strchr("/\\", name
[base_length
- 1]) ? "*" : "/*";
7910 if((dir
= (DIR *) Jim_Alloc(sizeof *dir
)) != 0 &&
7911 (dir
->name
= (char *) Jim_Alloc(base_length
+ strlen(all
) + 1)) != 0)
7913 strcat(strcpy(dir
->name
, name
), all
);
7915 if((dir
->handle
= (long) _findfirst(dir
->name
, &dir
->info
)) != -1)
7916 dir
->result
.d_name
= 0;
7917 else { /* rollback */
7918 Jim_Free(dir
->name
);
7922 } else { /* rollback */
7933 int closedir(DIR *dir
)
7938 if(dir
->handle
!= -1)
7939 result
= _findclose(dir
->handle
);
7940 Jim_Free(dir
->name
);
7943 if(result
== -1) /* map all errors to EBADF */
7948 struct dirent
*readdir(DIR *dir
)
7950 struct dirent
*result
= 0;
7952 if(dir
&& dir
->handle
!= -1) {
7953 if(!dir
->result
.d_name
|| _findnext(dir
->handle
, &dir
->info
) != -1) {
7954 result
= &dir
->result
;
7955 result
->d_name
= dir
->info
.name
;
7965 static char *JimFindBestPackage(Jim_Interp
*interp
, char **prefixes
,
7966 int prefixc
, const char *pkgName
, int pkgVer
, int flags
)
7968 int bestVer
= -1, i
;
7969 int pkgNameLen
= strlen(pkgName
);
7970 char *bestPackage
= NULL
;
7973 for (i
= 0; i
< prefixc
; i
++) {
7975 char buf
[JIM_PATH_LEN
];
7978 if (prefixes
[i
] == NULL
) continue;
7979 strncpy(buf
, prefixes
[i
], JIM_PATH_LEN
);
7980 buf
[JIM_PATH_LEN
-1] = '\0';
7981 prefixLen
= strlen(buf
);
7982 if (prefixLen
&& buf
[prefixLen
-1] == '/')
7983 buf
[prefixLen
-1] = '\0';
7985 if ((dir
= opendir(buf
)) == NULL
) continue;
7986 while ((de
= readdir(dir
)) != NULL
) {
7987 char *fileName
= de
->d_name
;
7988 int fileNameLen
= strlen(fileName
);
7990 if (strncmp(fileName
, "jim-", 4) == 0 &&
7991 strncmp(fileName
+4, pkgName
, pkgNameLen
) == 0 &&
7992 *(fileName
+4+pkgNameLen
) == '-' &&
7993 fileNameLen
> 4 && /* note that this is not really useful */
7994 (strncmp(fileName
+fileNameLen
-4, ".tcl", 4) == 0 ||
7995 strncmp(fileName
+fileNameLen
-4, ".dll", 4) == 0 ||
7996 strncmp(fileName
+fileNameLen
-3, ".so", 3) == 0))
7998 char ver
[6]; /* xx.yy<nulterm> */
7999 char *p
= strrchr(fileName
, '.');
8000 int verLen
, fileVer
;
8002 verLen
= p
- (fileName
+4+pkgNameLen
+1);
8003 if (verLen
< 3 || verLen
> 5) continue;
8004 memcpy(ver
, fileName
+4+pkgNameLen
+1, verLen
);
8006 if (JimPackageVersionToInt(interp
, ver
, &fileVer
, JIM_NONE
)
8007 != JIM_OK
) continue;
8008 if (JimPackageMatchVersion(pkgVer
, fileVer
, flags
) &&
8009 (bestVer
== -1 || bestVer
< fileVer
))
8012 Jim_Free(bestPackage
);
8013 bestPackage
= Jim_Alloc(strlen(buf
)+strlen(fileName
)+2);
8014 sprintf(bestPackage
, "%s/%s", buf
, fileName
);
8023 #else /* JIM_ANSIC */
8025 static char *JimFindBestPackage(Jim_Interp
*interp
, char **prefixes
,
8026 int prefixc
, const char *pkgName
, int pkgVer
, int flags
)
8028 JIM_NOTUSED(interp
);
8029 JIM_NOTUSED(prefixes
);
8030 JIM_NOTUSED(prefixc
);
8031 JIM_NOTUSED(pkgName
);
8032 JIM_NOTUSED(pkgVer
);
8037 #endif /* JIM_ANSIC */
8039 /* Search for a suitable package under every dir specified by jim_libpath
8040 * and load it if possible. If a suitable package was loaded with success
8041 * JIM_OK is returned, otherwise JIM_ERR is returned. */
8042 static int JimLoadPackage(Jim_Interp
*interp
, const char *name
, int ver
,
8045 Jim_Obj
*libPathObjPtr
;
8046 char **prefixes
, *best
;
8047 int prefixc
, i
, retCode
= JIM_OK
;
8049 libPathObjPtr
= Jim_GetGlobalVariableStr(interp
, "jim_libpath", JIM_NONE
);
8050 if (libPathObjPtr
== NULL
) {
8052 libPathObjPtr
= NULL
;
8054 Jim_IncrRefCount(libPathObjPtr
);
8055 Jim_ListLength(interp
, libPathObjPtr
, &prefixc
);
8058 prefixes
= Jim_Alloc(sizeof(char*)*prefixc
);
8059 for (i
= 0; i
< prefixc
; i
++) {
8060 Jim_Obj
*prefixObjPtr
;
8061 if (Jim_ListIndex(interp
, libPathObjPtr
, i
,
8062 &prefixObjPtr
, JIM_NONE
) != JIM_OK
)
8067 prefixes
[i
] = Jim_StrDup(Jim_GetString(prefixObjPtr
, NULL
));
8069 /* Scan every directory to find the "best" package. */
8070 best
= JimFindBestPackage(interp
, prefixes
, prefixc
, name
, ver
, flags
);
8072 char *p
= strrchr(best
, '.');
8073 /* Try to load/source it */
8074 if (p
&& strcmp(p
, ".tcl") == 0) {
8075 retCode
= Jim_EvalFile(interp
, best
);
8077 retCode
= Jim_LoadLibrary(interp
, best
);
8083 for (i
= 0; i
< prefixc
; i
++)
8084 Jim_Free(prefixes
[i
]);
8087 Jim_DecrRefCount(interp
, libPathObjPtr
);
8091 const char *Jim_PackageRequire(Jim_Interp
*interp
, const char *name
,
8092 const char *ver
, int flags
)
8097 if (JimPackageVersionToInt(interp
, ver
, &requiredVer
, JIM_ERRMSG
) != JIM_OK
)
8099 he
= Jim_FindHashEntry(&interp
->packages
, name
);
8101 /* Try to load the package. */
8102 if (JimLoadPackage(interp
, name
, requiredVer
, flags
) == JIM_OK
) {
8103 he
= Jim_FindHashEntry(&interp
->packages
, name
);
8109 /* No way... return an error. */
8110 if (flags
& JIM_ERRMSG
) {
8111 Jim_SetResult(interp
, Jim_NewEmptyStringObj(interp
));
8112 Jim_AppendStrings(interp
, Jim_GetResult(interp
),
8113 "Can't find package '", name
, "'", NULL
);
8118 if (JimPackageVersionToInt(interp
, he
->val
, &actualVer
, JIM_ERRMSG
)
8123 /* Check if version matches. */
8124 if (JimPackageMatchVersion(requiredVer
, actualVer
, flags
) == 0) {
8125 Jim_SetResult(interp
, Jim_NewEmptyStringObj(interp
));
8126 Jim_AppendStrings(interp
, Jim_GetResult(interp
),
8127 "Package '", name
, "' already loaded, but with version ",
8135 /* -----------------------------------------------------------------------------
8137 * ---------------------------------------------------------------------------*/
8138 #define JIM_EVAL_SARGV_LEN 8 /* static arguments vector length */
8139 #define JIM_EVAL_SINTV_LEN 8 /* static interpolation vector length */
8141 static int JimCallProcedure(Jim_Interp
*interp
, Jim_Cmd
*cmd
, int argc
,
8142 Jim_Obj
*const *argv
);
8144 /* Handle calls to the [unknown] command */
8145 static int JimUnknown(Jim_Interp
*interp
, int argc
, Jim_Obj
*const *argv
)
8147 Jim_Obj
**v
, *sv
[JIM_EVAL_SARGV_LEN
];
8150 /* If the [unknown] command does not exists returns
8152 if (Jim_GetCommand(interp
, interp
->unknown
, JIM_NONE
) == NULL
)
8155 /* The object interp->unknown just contains
8156 * the "unknown" string, it is used in order to
8157 * avoid to lookup the unknown command every time
8158 * but instread to cache the result. */
8159 if (argc
+1 <= JIM_EVAL_SARGV_LEN
)
8162 v
= Jim_Alloc(sizeof(Jim_Obj
*)*(argc
+1));
8163 /* Make a copy of the arguments vector, but shifted on
8164 * the right of one position. The command name of the
8165 * command will be instead the first argument of the
8166 * [unknonw] call. */
8167 memcpy(v
+1, argv
, sizeof(Jim_Obj
*)*argc
);
8168 v
[0] = interp
->unknown
;
8170 retCode
= Jim_EvalObjVector(interp
, argc
+1, v
);
8177 /* Eval the object vector 'objv' composed of 'objc' elements.
8178 * Every element is used as single argument.
8179 * Jim_EvalObj() will call this function every time its object
8180 * argument is of "list" type, with no string representation.
8182 * This is possible because the string representation of a
8183 * list object generated by the UpdateStringOfList is made
8184 * in a way that ensures that every list element is a different
8185 * command argument. */
8186 int Jim_EvalObjVector(Jim_Interp
*interp
, int objc
, Jim_Obj
*const *objv
)
8191 /* Incr refcount of arguments. */
8192 for (i
= 0; i
< objc
; i
++)
8193 Jim_IncrRefCount(objv
[i
]);
8194 /* Command lookup */
8195 cmdPtr
= Jim_GetCommand(interp
, objv
[0], JIM_ERRMSG
);
8196 if (cmdPtr
== NULL
) {
8197 retcode
= JimUnknown(interp
, objc
, objv
);
8199 /* Call it -- Make sure result is an empty object. */
8200 Jim_SetEmptyResult(interp
);
8201 if (cmdPtr
->cmdProc
) {
8202 interp
->cmdPrivData
= cmdPtr
->privData
;
8203 retcode
= cmdPtr
->cmdProc(interp
, objc
, objv
);
8205 retcode
= JimCallProcedure(interp
, cmdPtr
, objc
, objv
);
8206 if (retcode
== JIM_ERR
) {
8207 JimAppendStackTrace(interp
,
8208 Jim_GetString(objv
[0], NULL
), "?", 1);
8212 /* Decr refcount of arguments and return the retcode */
8213 for (i
= 0; i
< objc
; i
++)
8214 Jim_DecrRefCount(interp
, objv
[i
]);
8218 /* Interpolate the given tokens into a unique Jim_Obj returned by reference
8219 * via *objPtrPtr. This function is only called by Jim_EvalObj().
8220 * The returned object has refcount = 0. */
8221 int Jim_InterpolateTokens(Jim_Interp
*interp
, ScriptToken
*token
,
8222 int tokens
, Jim_Obj
**objPtrPtr
)
8224 int totlen
= 0, i
, retcode
;
8226 Jim_Obj
*sintv
[JIM_EVAL_SINTV_LEN
];
8230 if (tokens
<= JIM_EVAL_SINTV_LEN
)
8233 intv
= Jim_Alloc(sizeof(Jim_Obj
*)*
8235 /* Compute every token forming the argument
8236 * in the intv objects vector. */
8237 for (i
= 0; i
< tokens
; i
++) {
8238 switch(token
[i
].type
) {
8241 intv
[i
] = token
[i
].objPtr
;
8244 intv
[i
] = Jim_GetVariable(interp
, token
[i
].objPtr
, JIM_ERRMSG
);
8250 case JIM_TT_DICTSUGAR
:
8251 intv
[i
] = Jim_ExpandDictSugar(interp
, token
[i
].objPtr
);
8258 retcode
= Jim_EvalObj(interp
, token
[i
].objPtr
);
8259 if (retcode
!= JIM_OK
)
8261 intv
[i
] = Jim_GetResult(interp
);
8265 "default token type reached "
8266 "in Jim_InterpolateTokens().");
8269 Jim_IncrRefCount(intv
[i
]);
8270 /* Make sure there is a valid
8271 * string rep, and add the string
8272 * length to the total legnth. */
8273 Jim_GetString(intv
[i
], NULL
);
8274 totlen
+= intv
[i
]->length
;
8276 /* Concatenate every token in an unique
8278 objPtr
= Jim_NewStringObjNoAlloc(interp
,
8280 s
= objPtr
->bytes
= Jim_Alloc(totlen
+1);
8281 objPtr
->length
= totlen
;
8282 for (i
= 0; i
< tokens
; i
++) {
8283 memcpy(s
, intv
[i
]->bytes
, intv
[i
]->length
);
8284 s
+= intv
[i
]->length
;
8285 Jim_DecrRefCount(interp
, intv
[i
]);
8287 objPtr
->bytes
[totlen
] = '\0';
8288 /* Free the intv vector if not static. */
8289 if (tokens
> JIM_EVAL_SINTV_LEN
)
8291 *objPtrPtr
= objPtr
;
8296 Jim_DecrRefCount(interp
, intv
[i
]);
8297 if (tokens
> JIM_EVAL_SINTV_LEN
)
8302 /* Helper of Jim_EvalObj() to perform argument expansion.
8303 * Basically this function append an argument to 'argv'
8304 * (and increments argc by reference accordingly), performing
8305 * expansion of the list object if 'expand' is non-zero, or
8306 * just adding objPtr to argv if 'expand' is zero. */
8307 void Jim_ExpandArgument(Jim_Interp
*interp
, Jim_Obj
***argv
,
8308 int *argcPtr
, int expand
, Jim_Obj
*objPtr
)
8311 (*argv
) = Jim_Realloc(*argv
, sizeof(Jim_Obj
*)*((*argcPtr
)+1));
8312 /* refcount of objPtr not incremented because
8313 * we are actually transfering a reference from
8314 * the old 'argv' to the expanded one. */
8315 (*argv
)[*argcPtr
] = objPtr
;
8320 Jim_ListLength(interp
, objPtr
, &len
);
8321 (*argv
) = Jim_Realloc(*argv
, sizeof(Jim_Obj
*)*((*argcPtr
)+len
));
8322 for (i
= 0; i
< len
; i
++) {
8323 (*argv
)[*argcPtr
] = objPtr
->internalRep
.listValue
.ele
[i
];
8324 Jim_IncrRefCount(objPtr
->internalRep
.listValue
.ele
[i
]);
8327 /* The original object reference is no longer needed,
8328 * after the expansion it is no longer present on
8329 * the argument vector, but the single elements are
8331 Jim_DecrRefCount(interp
, objPtr
);
8335 int Jim_EvalObj(Jim_Interp
*interp
, Jim_Obj
*scriptObjPtr
)
8340 int *cs
; /* command structure array */
8341 int retcode
= JIM_OK
;
8342 Jim_Obj
*sargv
[JIM_EVAL_SARGV_LEN
], **argv
= NULL
, *tmpObjPtr
;
8344 interp
->errorFlag
= 0;
8346 /* If the object is of type "list" and there is no
8347 * string representation for this object, we can call
8348 * a specialized version of Jim_EvalObj() */
8349 if (scriptObjPtr
->typePtr
== &listObjType
&&
8350 scriptObjPtr
->internalRep
.listValue
.len
&&
8351 scriptObjPtr
->bytes
== NULL
) {
8352 Jim_IncrRefCount(scriptObjPtr
);
8353 retcode
= Jim_EvalObjVector(interp
,
8354 scriptObjPtr
->internalRep
.listValue
.len
,
8355 scriptObjPtr
->internalRep
.listValue
.ele
);
8356 Jim_DecrRefCount(interp
, scriptObjPtr
);
8360 Jim_IncrRefCount(scriptObjPtr
); /* Make sure it's shared. */
8361 script
= Jim_GetScript(interp
, scriptObjPtr
);
8362 /* Now we have to make sure the internal repr will not be
8363 * freed on shimmering.
8365 * Think for example to this:
8367 * set x {llength $x; ... some more code ...}; eval $x
8369 * In order to preserve the internal rep, we increment the
8370 * inUse field of the script internal rep structure. */
8373 token
= script
->token
;
8375 cs
= script
->cmdStruct
;
8376 i
= 0; /* 'i' is the current token index. */
8378 /* Reset the interpreter result. This is useful to
8379 * return the emtpy result in the case of empty program. */
8380 Jim_SetEmptyResult(interp
);
8382 /* Execute every command sequentially, returns on
8383 * error (i.e. if a command does not return JIM_OK) */
8386 int argc
= *cs
++; /* Get the number of arguments */
8389 /* Set the expand flag if needed. */
8394 /* Allocate the arguments vector */
8395 if (argc
<= JIM_EVAL_SARGV_LEN
)
8398 argv
= Jim_Alloc(sizeof(Jim_Obj
*)*argc
);
8399 /* Populate the arguments objects. */
8400 for (j
= 0; j
< argc
; j
++) {
8403 /* tokens is negative if expansion is needed.
8404 * for this argument. */
8406 tokens
= (-tokens
)-1;
8410 /* Fast path if the token does not
8411 * need interpolation */
8412 switch(token
[i
].type
) {
8415 argv
[j
] = token
[i
].objPtr
;
8418 tmpObjPtr
= Jim_GetVariable(interp
, token
[i
].objPtr
,
8424 argv
[j
] = tmpObjPtr
;
8426 case JIM_TT_DICTSUGAR
:
8427 tmpObjPtr
= Jim_ExpandDictSugar(interp
, token
[i
].objPtr
);
8432 argv
[j
] = tmpObjPtr
;
8435 retcode
= Jim_EvalObj(interp
, token
[i
].objPtr
);
8436 if (retcode
!= JIM_OK
)
8438 argv
[j
] = Jim_GetResult(interp
);
8442 "default token type reached "
8443 "in Jim_EvalObj().");
8446 Jim_IncrRefCount(argv
[j
]);
8449 /* For interpolation we call an helper
8450 * function doing the work for us. */
8451 if ((retcode
= Jim_InterpolateTokens(interp
,
8452 token
+i
, tokens
, &tmpObjPtr
)) != JIM_OK
)
8456 argv
[j
] = tmpObjPtr
;
8457 Jim_IncrRefCount(argv
[j
]);
8461 /* Handle {expand} expansion */
8463 int *ecs
= cs
- argc
;
8465 Jim_Obj
**eargv
= NULL
;
8467 for (j
= 0; j
< argc
; j
++) {
8468 Jim_ExpandArgument( interp
, &eargv
, &eargc
,
8469 ecs
[j
] < 0, argv
[j
]);
8477 /* Nothing to do with zero args. */
8482 /* Lookup the command to call */
8483 cmd
= Jim_GetCommand(interp
, argv
[0], JIM_ERRMSG
);
8485 /* Call it -- Make sure result is an empty object. */
8486 Jim_SetEmptyResult(interp
);
8488 interp
->cmdPrivData
= cmd
->privData
;
8489 retcode
= cmd
->cmdProc(interp
, argc
, argv
);
8491 retcode
= JimCallProcedure(interp
, cmd
, argc
, argv
);
8492 if (retcode
== JIM_ERR
) {
8493 JimAppendStackTrace(interp
,
8494 Jim_GetString(argv
[0], NULL
), script
->fileName
,
8495 token
[i
-argc
*2].linenr
);
8499 /* Call [unknown] */
8500 retcode
= JimUnknown(interp
, argc
, argv
);
8502 if (retcode
!= JIM_OK
) {
8503 i
-= argc
*2; /* point to the command name. */
8506 /* Decrement the arguments count */
8507 for (j
= 0; j
< argc
; j
++) {
8508 Jim_DecrRefCount(interp
, argv
[j
]);
8511 if (argv
!= sargv
) {
8516 /* Note that we don't have to decrement inUse, because the
8517 * following code transfers our use of the reference again to
8518 * the script object. */
8519 j
= 0; /* on normal termination, the argv array is already
8520 Jim_DecrRefCount-ed. */
8522 /* Handle errors. */
8523 if (retcode
== JIM_ERR
&& !interp
->errorFlag
) {
8524 interp
->errorFlag
= 1;
8525 JimSetErrorFileName(interp
, script
->fileName
);
8526 JimSetErrorLineNumber(interp
, token
[i
].linenr
);
8527 JimResetStackTrace(interp
);
8529 Jim_FreeIntRep(interp
, scriptObjPtr
);
8530 scriptObjPtr
->typePtr
= &scriptObjType
;
8531 Jim_SetIntRepPtr(scriptObjPtr
, script
);
8532 Jim_DecrRefCount(interp
, scriptObjPtr
);
8533 for (i
= 0; i
< j
; i
++) {
8534 Jim_DecrRefCount(interp
, argv
[i
]);
8541 /* Call a procedure implemented in Tcl.
8542 * It's possible to speed-up a lot this function, currently
8543 * the callframes are not cached, but allocated and
8544 * destroied every time. What is expecially costly is
8545 * to create/destroy the local vars hash table every time.
8547 * This can be fixed just implementing callframes caching
8548 * in JimCreateCallFrame() and JimFreeCallFrame(). */
8549 int JimCallProcedure(Jim_Interp
*interp
, Jim_Cmd
*cmd
, int argc
,
8550 Jim_Obj
*const *argv
)
8553 Jim_CallFrame
*callFramePtr
;
8556 if (argc
< cmd
->arityMin
|| (cmd
->arityMax
!= -1 &&
8557 argc
> cmd
->arityMax
)) {
8558 Jim_Obj
*objPtr
= Jim_NewEmptyStringObj(interp
);
8559 Jim_AppendStrings(interp
, objPtr
,
8560 "wrong # args: should be \"", Jim_GetString(argv
[0], NULL
),
8561 (cmd
->arityMin
> 1) ? " " : "",
8562 Jim_GetString(cmd
->argListObjPtr
, NULL
), "\"", NULL
);
8563 Jim_SetResult(interp
, objPtr
);
8566 /* Check if there are too nested calls */
8567 if (interp
->numLevels
== interp
->maxNestingDepth
) {
8568 Jim_SetResultString(interp
,
8569 "Too many nested calls. Infinite recursion?", -1);
8572 /* Create a new callframe */
8573 callFramePtr
= JimCreateCallFrame(interp
);
8574 callFramePtr
->parentCallFrame
= interp
->framePtr
;
8575 callFramePtr
->argv
= argv
;
8576 callFramePtr
->argc
= argc
;
8577 callFramePtr
->procArgsObjPtr
= cmd
->argListObjPtr
;
8578 callFramePtr
->procBodyObjPtr
= cmd
->bodyObjPtr
;
8579 callFramePtr
->staticVars
= cmd
->staticVars
;
8580 Jim_IncrRefCount(cmd
->argListObjPtr
);
8581 Jim_IncrRefCount(cmd
->bodyObjPtr
);
8582 interp
->framePtr
= callFramePtr
;
8583 interp
->numLevels
++;
8585 for (i
= 0; i
< cmd
->arityMin
-1; i
++) {
8588 Jim_ListIndex(interp
, cmd
->argListObjPtr
, i
, &objPtr
, JIM_NONE
);
8589 Jim_SetVariable(interp
, objPtr
, argv
[i
+1]);
8591 if (cmd
->arityMax
== -1) {
8592 Jim_Obj
*listObjPtr
, *objPtr
;
8594 listObjPtr
= Jim_NewListObj(interp
, argv
+cmd
->arityMin
,
8595 argc
-cmd
->arityMin
);
8596 Jim_ListIndex(interp
, cmd
->argListObjPtr
, i
, &objPtr
, JIM_NONE
);
8597 Jim_SetVariable(interp
, objPtr
, listObjPtr
);
8600 retcode
= Jim_EvalObj(interp
, cmd
->bodyObjPtr
);
8602 /* Destroy the callframe */
8603 interp
->numLevels
--;
8604 interp
->framePtr
= interp
->framePtr
->parentCallFrame
;
8605 if (callFramePtr
->vars
.size
!= JIM_HT_INITIAL_SIZE
) {
8606 JimFreeCallFrame(interp
, callFramePtr
, JIM_FCF_NONE
);
8608 JimFreeCallFrame(interp
, callFramePtr
, JIM_FCF_NOHT
);
8610 /* Handle the JIM_EVAL return code */
8611 if (retcode
== JIM_EVAL
&& interp
->evalRetcodeLevel
!= interp
->numLevels
) {
8612 int savedLevel
= interp
->evalRetcodeLevel
;
8614 interp
->evalRetcodeLevel
= interp
->numLevels
;
8615 while (retcode
== JIM_EVAL
) {
8616 Jim_Obj
*resultScriptObjPtr
= Jim_GetResult(interp
);
8617 Jim_IncrRefCount(resultScriptObjPtr
);
8618 retcode
= Jim_EvalObj(interp
, resultScriptObjPtr
);
8619 Jim_DecrRefCount(interp
, resultScriptObjPtr
);
8621 interp
->evalRetcodeLevel
= savedLevel
;
8623 /* Handle the JIM_RETURN return code */
8624 if (retcode
== JIM_RETURN
) {
8625 retcode
= interp
->returnCode
;
8626 interp
->returnCode
= JIM_OK
;
8631 int Jim_Eval(Jim_Interp
*interp
, const char *script
)
8633 Jim_Obj
*scriptObjPtr
= Jim_NewStringObj(interp
, script
, -1);
8636 Jim_IncrRefCount(scriptObjPtr
);
8637 retval
= Jim_EvalObj(interp
, scriptObjPtr
);
8638 Jim_DecrRefCount(interp
, scriptObjPtr
);
8642 /* Execute script in the scope of the global level */
8643 int Jim_EvalGlobal(Jim_Interp
*interp
, const char *script
)
8645 Jim_CallFrame
*savedFramePtr
;
8648 savedFramePtr
= interp
->framePtr
;
8649 interp
->framePtr
= interp
->topFramePtr
;
8650 retval
= Jim_Eval(interp
, script
);
8651 interp
->framePtr
= savedFramePtr
;
8655 int Jim_EvalObjBackground(Jim_Interp
*interp
, Jim_Obj
*scriptObjPtr
)
8657 Jim_CallFrame
*savedFramePtr
;
8660 savedFramePtr
= interp
->framePtr
;
8661 interp
->framePtr
= interp
->topFramePtr
;
8662 retval
= Jim_EvalObj(interp
, scriptObjPtr
);
8663 interp
->framePtr
= savedFramePtr
;
8664 /* Try to report the error (if any) via the bgerror proc */
8665 if (retval
!= JIM_OK
) {
8668 objv
[0] = Jim_NewStringObj(interp
, "bgerror", -1);
8669 objv
[1] = Jim_GetResult(interp
);
8670 Jim_IncrRefCount(objv
[0]);
8671 Jim_IncrRefCount(objv
[1]);
8672 if (Jim_EvalObjVector(interp
, 2, objv
) != JIM_OK
) {
8673 /* Report the error to stderr. */
8674 Jim_fprintf( interp
, interp
->cookie_stderr
, "Background error:" JIM_NL
);
8675 Jim_PrintErrorMessage(interp
);
8677 Jim_DecrRefCount(interp
, objv
[0]);
8678 Jim_DecrRefCount(interp
, objv
[1]);
8683 int Jim_EvalFile(Jim_Interp
*interp
, const char *filename
)
8687 int nread
, totread
, maxlen
, buflen
;
8689 Jim_Obj
*scriptObjPtr
;
8691 if ((fp
= fopen(filename
, "r")) == NULL
) {
8692 Jim_SetResult(interp
, Jim_NewEmptyStringObj(interp
));
8693 Jim_AppendStrings(interp
, Jim_GetResult(interp
),
8694 "Error loading script \"", filename
, "\": ",
8695 strerror(errno
), NULL
);
8699 maxlen
= totread
= 0;
8701 if (maxlen
< totread
+buflen
+1) {
8702 maxlen
= totread
+buflen
+1;
8703 prg
= Jim_Realloc(prg
, maxlen
);
8705 /* do not use Jim_fread() - this is really a file */
8706 if ((nread
= fread(prg
+totread
, 1, buflen
, fp
)) == 0) break;
8709 prg
[totread
] = '\0';
8710 /* do not use Jim_fclose() - this is really a file */
8713 scriptObjPtr
= Jim_NewStringObjNoAlloc(interp
, prg
, totread
);
8714 JimSetSourceInfo(interp
, scriptObjPtr
, filename
, 1);
8715 Jim_IncrRefCount(scriptObjPtr
);
8716 retval
= Jim_EvalObj(interp
, scriptObjPtr
);
8717 Jim_DecrRefCount(interp
, scriptObjPtr
);
8721 /* -----------------------------------------------------------------------------
8723 * ---------------------------------------------------------------------------*/
8724 static int JimParseSubstStr(struct JimParserCtx
*pc
)
8727 pc
->tline
= pc
->linenr
;
8728 while (*pc
->p
&& *pc
->p
!= '$' && *pc
->p
!= '[') {
8732 pc
->tt
= JIM_TT_ESC
;
8736 static int JimParseSubst(struct JimParserCtx
*pc
, int flags
)
8741 pc
->tstart
= pc
->tend
= pc
->p
;
8742 pc
->tline
= pc
->linenr
;
8743 pc
->tt
= JIM_TT_EOL
;
8749 retval
= JimParseCmd(pc
);
8750 if (flags
& JIM_SUBST_NOCMD
) {
8753 pc
->tt
= (flags
& JIM_SUBST_NOESC
) ?
8754 JIM_TT_STR
: JIM_TT_ESC
;
8759 if (JimParseVar(pc
) == JIM_ERR
) {
8760 pc
->tstart
= pc
->tend
= pc
->p
++; pc
->len
--;
8761 pc
->tline
= pc
->linenr
;
8762 pc
->tt
= JIM_TT_STR
;
8764 if (flags
& JIM_SUBST_NOVAR
) {
8766 if (flags
& JIM_SUBST_NOESC
)
8767 pc
->tt
= JIM_TT_STR
;
8769 pc
->tt
= JIM_TT_ESC
;
8770 if (*pc
->tstart
== '{') {
8779 retval
= JimParseSubstStr(pc
);
8780 if (flags
& JIM_SUBST_NOESC
)
8781 pc
->tt
= JIM_TT_STR
;
8788 /* The subst object type reuses most of the data structures and functions
8789 * of the script object. Script's data structures are a bit more complex
8790 * for what is needed for [subst]itution tasks, but the reuse helps to
8791 * deal with a single data structure at the cost of some more memory
8792 * usage for substitutions. */
8793 static Jim_ObjType substObjType
= {
8795 FreeScriptInternalRep
,
8796 DupScriptInternalRep
,
8798 JIM_TYPE_REFERENCES
,
8801 /* This method takes the string representation of an object
8802 * as a Tcl string where to perform [subst]itution, and generates
8803 * the pre-parsed internal representation. */
8804 int SetSubstFromAny(Jim_Interp
*interp
, struct Jim_Obj
*objPtr
, int flags
)
8807 const char *scriptText
= Jim_GetString(objPtr
, &scriptTextLen
);
8808 struct JimParserCtx parser
;
8809 struct ScriptObj
*script
= Jim_Alloc(sizeof(*script
));
8813 script
->commands
= 0;
8814 script
->token
= NULL
;
8815 script
->cmdStruct
= NULL
;
8817 script
->substFlags
= flags
;
8818 script
->fileName
= NULL
;
8820 JimParserInit(&parser
, scriptText
, scriptTextLen
, 1);
8823 int len
, type
, linenr
;
8825 JimParseSubst(&parser
, flags
);
8826 if (JimParserEof(&parser
)) break;
8827 token
= JimParserGetToken(&parser
, &len
, &type
, &linenr
);
8828 ScriptObjAddToken(interp
, script
, token
, len
, type
,
8831 /* Free the old internal rep and set the new one. */
8832 Jim_FreeIntRep(interp
, objPtr
);
8833 Jim_SetIntRepPtr(objPtr
, script
);
8834 objPtr
->typePtr
= &scriptObjType
;
8838 ScriptObj
*Jim_GetSubst(Jim_Interp
*interp
, Jim_Obj
*objPtr
, int flags
)
8840 struct ScriptObj
*script
= Jim_GetIntRepPtr(objPtr
);
8842 if (objPtr
->typePtr
!= &substObjType
|| script
->substFlags
!= flags
)
8843 SetSubstFromAny(interp
, objPtr
, flags
);
8844 return (ScriptObj
*) Jim_GetIntRepPtr(objPtr
);
8847 /* Performs commands,variables,blackslashes substitution,
8848 * storing the result object (with refcount 0) into
8850 int Jim_SubstObj(Jim_Interp
*interp
, Jim_Obj
*substObjPtr
,
8851 Jim_Obj
**resObjPtrPtr
, int flags
)
8855 int i
, len
, retcode
= JIM_OK
;
8856 Jim_Obj
*resObjPtr
, *savedResultObjPtr
;
8858 script
= Jim_GetSubst(interp
, substObjPtr
, flags
);
8859 #ifdef JIM_OPTIMIZATION
8860 /* Fast path for a very common case with array-alike syntax,
8861 * that's: $foo($bar) */
8862 if (script
->len
== 1 && script
->token
[0].type
== JIM_TT_VAR
) {
8863 Jim_Obj
*varObjPtr
= script
->token
[0].objPtr
;
8865 Jim_IncrRefCount(varObjPtr
);
8866 resObjPtr
= Jim_GetVariable(interp
, varObjPtr
, JIM_ERRMSG
);
8867 if (resObjPtr
== NULL
) {
8868 Jim_DecrRefCount(interp
, varObjPtr
);
8871 Jim_DecrRefCount(interp
, varObjPtr
);
8872 *resObjPtrPtr
= resObjPtr
;
8877 Jim_IncrRefCount(substObjPtr
); /* Make sure it's shared. */
8878 /* In order to preserve the internal rep, we increment the
8879 * inUse field of the script internal rep structure. */
8882 token
= script
->token
;
8885 /* Save the interp old result, to set it again before
8887 savedResultObjPtr
= interp
->result
;
8888 Jim_IncrRefCount(savedResultObjPtr
);
8890 /* Perform the substitution. Starts with an empty object
8891 * and adds every token (performing the appropriate
8892 * var/command/escape substitution). */
8893 resObjPtr
= Jim_NewStringObj(interp
, "", 0);
8894 for (i
= 0; i
< len
; i
++) {
8897 switch(token
[i
].type
) {
8900 Jim_AppendObj(interp
, resObjPtr
, token
[i
].objPtr
);
8903 objPtr
= Jim_GetVariable(interp
, token
[i
].objPtr
, JIM_ERRMSG
);
8904 if (objPtr
== NULL
) goto err
;
8905 Jim_IncrRefCount(objPtr
);
8906 Jim_AppendObj(interp
, resObjPtr
, objPtr
);
8907 Jim_DecrRefCount(interp
, objPtr
);
8910 if (Jim_EvalObj(interp
, token
[i
].objPtr
) != JIM_OK
)
8912 Jim_AppendObj(interp
, resObjPtr
, interp
->result
);
8916 "default token type (%d) reached "
8917 "in Jim_SubstObj().", token
[i
].type
);
8922 if (retcode
== JIM_OK
)
8923 Jim_SetResult(interp
, savedResultObjPtr
);
8924 Jim_DecrRefCount(interp
, savedResultObjPtr
);
8925 /* Note that we don't have to decrement inUse, because the
8926 * following code transfers our use of the reference again to
8927 * the script object. */
8928 Jim_FreeIntRep(interp
, substObjPtr
);
8929 substObjPtr
->typePtr
= &scriptObjType
;
8930 Jim_SetIntRepPtr(substObjPtr
, script
);
8931 Jim_DecrRefCount(interp
, substObjPtr
);
8932 *resObjPtrPtr
= resObjPtr
;
8935 Jim_FreeNewObj(interp
, resObjPtr
);
8940 /* -----------------------------------------------------------------------------
8941 * API Input/Export functions
8942 * ---------------------------------------------------------------------------*/
8944 int Jim_GetApi(Jim_Interp
*interp
, const char *funcname
, void *targetPtrPtr
)
8948 he
= Jim_FindHashEntry(&interp
->stub
, funcname
);
8951 memcpy(targetPtrPtr
, &he
->val
, sizeof(void*));
8955 int Jim_RegisterApi(Jim_Interp
*interp
, const char *funcname
, void *funcptr
)
8957 return Jim_AddHashEntry(&interp
->stub
, funcname
, funcptr
);
8960 #define JIM_REGISTER_API(name) \
8961 Jim_RegisterApi(interp, "Jim_" #name, (void *)Jim_ ## name)
8963 void JimRegisterCoreApi(Jim_Interp
*interp
)
8965 interp
->getApiFuncPtr
= Jim_GetApi
;
8966 JIM_REGISTER_API(Alloc
);
8967 JIM_REGISTER_API(Free
);
8968 JIM_REGISTER_API(Eval
);
8969 JIM_REGISTER_API(EvalGlobal
);
8970 JIM_REGISTER_API(EvalFile
);
8971 JIM_REGISTER_API(EvalObj
);
8972 JIM_REGISTER_API(EvalObjBackground
);
8973 JIM_REGISTER_API(EvalObjVector
);
8974 JIM_REGISTER_API(InitHashTable
);
8975 JIM_REGISTER_API(ExpandHashTable
);
8976 JIM_REGISTER_API(AddHashEntry
);
8977 JIM_REGISTER_API(ReplaceHashEntry
);
8978 JIM_REGISTER_API(DeleteHashEntry
);
8979 JIM_REGISTER_API(FreeHashTable
);
8980 JIM_REGISTER_API(FindHashEntry
);
8981 JIM_REGISTER_API(ResizeHashTable
);
8982 JIM_REGISTER_API(GetHashTableIterator
);
8983 JIM_REGISTER_API(NextHashEntry
);
8984 JIM_REGISTER_API(NewObj
);
8985 JIM_REGISTER_API(FreeObj
);
8986 JIM_REGISTER_API(InvalidateStringRep
);
8987 JIM_REGISTER_API(InitStringRep
);
8988 JIM_REGISTER_API(DuplicateObj
);
8989 JIM_REGISTER_API(GetString
);
8990 JIM_REGISTER_API(Length
);
8991 JIM_REGISTER_API(InvalidateStringRep
);
8992 JIM_REGISTER_API(NewStringObj
);
8993 JIM_REGISTER_API(NewStringObjNoAlloc
);
8994 JIM_REGISTER_API(AppendString
);
8995 JIM_REGISTER_API(AppendObj
);
8996 JIM_REGISTER_API(AppendStrings
);
8997 JIM_REGISTER_API(StringEqObj
);
8998 JIM_REGISTER_API(StringMatchObj
);
8999 JIM_REGISTER_API(StringRangeObj
);
9000 JIM_REGISTER_API(FormatString
);
9001 JIM_REGISTER_API(CompareStringImmediate
);
9002 JIM_REGISTER_API(NewReference
);
9003 JIM_REGISTER_API(GetReference
);
9004 JIM_REGISTER_API(SetFinalizer
);
9005 JIM_REGISTER_API(GetFinalizer
);
9006 JIM_REGISTER_API(CreateInterp
);
9007 JIM_REGISTER_API(FreeInterp
);
9008 JIM_REGISTER_API(GetExitCode
);
9009 JIM_REGISTER_API(SetStdin
);
9010 JIM_REGISTER_API(SetStdout
);
9011 JIM_REGISTER_API(SetStderr
);
9012 JIM_REGISTER_API(CreateCommand
);
9013 JIM_REGISTER_API(CreateProcedure
);
9014 JIM_REGISTER_API(DeleteCommand
);
9015 JIM_REGISTER_API(RenameCommand
);
9016 JIM_REGISTER_API(GetCommand
);
9017 JIM_REGISTER_API(SetVariable
);
9018 JIM_REGISTER_API(SetVariableStr
);
9019 JIM_REGISTER_API(SetGlobalVariableStr
);
9020 JIM_REGISTER_API(SetVariableStrWithStr
);
9021 JIM_REGISTER_API(SetVariableLink
);
9022 JIM_REGISTER_API(GetVariable
);
9023 JIM_REGISTER_API(GetCallFrameByLevel
);
9024 JIM_REGISTER_API(Collect
);
9025 JIM_REGISTER_API(CollectIfNeeded
);
9026 JIM_REGISTER_API(GetIndex
);
9027 JIM_REGISTER_API(NewListObj
);
9028 JIM_REGISTER_API(ListAppendElement
);
9029 JIM_REGISTER_API(ListAppendList
);
9030 JIM_REGISTER_API(ListLength
);
9031 JIM_REGISTER_API(ListIndex
);
9032 JIM_REGISTER_API(SetListIndex
);
9033 JIM_REGISTER_API(ConcatObj
);
9034 JIM_REGISTER_API(NewDictObj
);
9035 JIM_REGISTER_API(DictKey
);
9036 JIM_REGISTER_API(DictKeysVector
);
9037 JIM_REGISTER_API(GetIndex
);
9038 JIM_REGISTER_API(GetReturnCode
);
9039 JIM_REGISTER_API(EvalExpression
);
9040 JIM_REGISTER_API(GetBoolFromExpr
);
9041 JIM_REGISTER_API(GetWide
);
9042 JIM_REGISTER_API(GetLong
);
9043 JIM_REGISTER_API(SetWide
);
9044 JIM_REGISTER_API(NewIntObj
);
9045 JIM_REGISTER_API(GetDouble
);
9046 JIM_REGISTER_API(SetDouble
);
9047 JIM_REGISTER_API(NewDoubleObj
);
9048 JIM_REGISTER_API(WrongNumArgs
);
9049 JIM_REGISTER_API(SetDictKeysVector
);
9050 JIM_REGISTER_API(SubstObj
);
9051 JIM_REGISTER_API(RegisterApi
);
9052 JIM_REGISTER_API(PrintErrorMessage
);
9053 JIM_REGISTER_API(InteractivePrompt
);
9054 JIM_REGISTER_API(RegisterCoreCommands
);
9055 JIM_REGISTER_API(GetSharedString
);
9056 JIM_REGISTER_API(ReleaseSharedString
);
9057 JIM_REGISTER_API(Panic
);
9058 JIM_REGISTER_API(StrDup
);
9059 JIM_REGISTER_API(UnsetVariable
);
9060 JIM_REGISTER_API(GetVariableStr
);
9061 JIM_REGISTER_API(GetGlobalVariable
);
9062 JIM_REGISTER_API(GetGlobalVariableStr
);
9063 JIM_REGISTER_API(GetAssocData
);
9064 JIM_REGISTER_API(SetAssocData
);
9065 JIM_REGISTER_API(DeleteAssocData
);
9066 JIM_REGISTER_API(GetEnum
);
9067 JIM_REGISTER_API(ScriptIsComplete
);
9068 JIM_REGISTER_API(PackageRequire
);
9069 JIM_REGISTER_API(PackageProvide
);
9070 JIM_REGISTER_API(InitStack
);
9071 JIM_REGISTER_API(FreeStack
);
9072 JIM_REGISTER_API(StackLen
);
9073 JIM_REGISTER_API(StackPush
);
9074 JIM_REGISTER_API(StackPop
);
9075 JIM_REGISTER_API(StackPeek
);
9076 JIM_REGISTER_API(FreeStackElements
);
9079 /* -----------------------------------------------------------------------------
9080 * Core commands utility functions
9081 * ---------------------------------------------------------------------------*/
9082 void Jim_WrongNumArgs(Jim_Interp
*interp
, int argc
, Jim_Obj
*const *argv
,
9086 Jim_Obj
*objPtr
= Jim_NewEmptyStringObj(interp
);
9088 Jim_AppendString(interp
, objPtr
, "wrong # args: should be \"", -1);
9089 for (i
= 0; i
< argc
; i
++) {
9090 Jim_AppendObj(interp
, objPtr
, argv
[i
]);
9091 if (!(i
+1 == argc
&& msg
[0] == '\0'))
9092 Jim_AppendString(interp
, objPtr
, " ", 1);
9094 Jim_AppendString(interp
, objPtr
, msg
, -1);
9095 Jim_AppendString(interp
, objPtr
, "\"", 1);
9096 Jim_SetResult(interp
, objPtr
);
9099 static Jim_Obj
*JimCommandsList(Jim_Interp
*interp
, Jim_Obj
*patternObjPtr
)
9101 Jim_HashTableIterator
*htiter
;
9103 Jim_Obj
*listObjPtr
= Jim_NewListObj(interp
, NULL
, 0);
9104 const char *pattern
;
9107 pattern
= patternObjPtr
? Jim_GetString(patternObjPtr
, &patternLen
) : NULL
;
9108 htiter
= Jim_GetHashTableIterator(&interp
->commands
);
9109 while ((he
= Jim_NextHashEntry(htiter
)) != NULL
) {
9110 if (pattern
&& !JimStringMatch(pattern
, patternLen
, he
->key
,
9111 strlen((const char*)he
->key
), 0))
9113 Jim_ListAppendElement(interp
, listObjPtr
,
9114 Jim_NewStringObj(interp
, he
->key
, -1));
9116 Jim_FreeHashTableIterator(htiter
);
9120 #define JIM_VARLIST_GLOBALS 0
9121 #define JIM_VARLIST_LOCALS 1
9122 #define JIM_VARLIST_VARS 2
9124 static Jim_Obj
*JimVariablesList(Jim_Interp
*interp
, Jim_Obj
*patternObjPtr
,
9127 Jim_HashTableIterator
*htiter
;
9129 Jim_Obj
*listObjPtr
= Jim_NewListObj(interp
, NULL
, 0);
9130 const char *pattern
;
9133 pattern
= patternObjPtr
? Jim_GetString(patternObjPtr
, &patternLen
) : NULL
;
9134 if (mode
== JIM_VARLIST_GLOBALS
) {
9135 htiter
= Jim_GetHashTableIterator(&interp
->topFramePtr
->vars
);
9137 /* For [info locals], if we are at top level an emtpy list
9138 * is returned. I don't agree, but we aim at compatibility (SS) */
9139 if (mode
== JIM_VARLIST_LOCALS
&&
9140 interp
->framePtr
== interp
->topFramePtr
)
9142 htiter
= Jim_GetHashTableIterator(&interp
->framePtr
->vars
);
9144 while ((he
= Jim_NextHashEntry(htiter
)) != NULL
) {
9145 Jim_Var
*varPtr
= (Jim_Var
*) he
->val
;
9146 if (mode
== JIM_VARLIST_LOCALS
) {
9147 if (varPtr
->linkFramePtr
!= NULL
)
9150 if (pattern
&& !JimStringMatch(pattern
, patternLen
, he
->key
,
9151 strlen((const char*)he
->key
), 0))
9153 Jim_ListAppendElement(interp
, listObjPtr
,
9154 Jim_NewStringObj(interp
, he
->key
, -1));
9156 Jim_FreeHashTableIterator(htiter
);
9160 static int JimInfoLevel(Jim_Interp
*interp
, Jim_Obj
*levelObjPtr
,
9161 Jim_Obj
**objPtrPtr
)
9163 Jim_CallFrame
*targetCallFrame
;
9165 if (JimGetCallFrameByInteger(interp
, levelObjPtr
, &targetCallFrame
)
9168 /* No proc call at toplevel callframe */
9169 if (targetCallFrame
== interp
->topFramePtr
) {
9170 Jim_SetResult(interp
, Jim_NewEmptyStringObj(interp
));
9171 Jim_AppendStrings(interp
, Jim_GetResult(interp
),
9173 Jim_GetString(levelObjPtr
, NULL
), "\"", NULL
);
9176 *objPtrPtr
= Jim_NewListObj(interp
,
9177 targetCallFrame
->argv
,
9178 targetCallFrame
->argc
);
9182 /* -----------------------------------------------------------------------------
9184 * ---------------------------------------------------------------------------*/
9186 /* fake [puts] -- not the real puts, just for debugging. */
9187 static int Jim_PutsCoreCommand(Jim_Interp
*interp
, int argc
,
9188 Jim_Obj
*const *argv
)
9191 int len
, nonewline
= 0;
9193 if (argc
!= 2 && argc
!= 3) {
9194 Jim_WrongNumArgs(interp
, 1, argv
, "-nonewline string");
9198 if (!Jim_CompareStringImmediate(interp
, argv
[1], "-nonewline"))
9200 Jim_SetResultString(interp
, "The second argument must "
9201 "be -nonewline", -1);
9208 str
= Jim_GetString(argv
[1], &len
);
9209 Jim_fwrite(interp
, str
, 1, len
, interp
->cookie_stdout
);
9210 if (!nonewline
) Jim_fprintf( interp
, interp
->cookie_stdout
, JIM_NL
);
9214 /* Helper for [+] and [*] */
9215 static int Jim_AddMulHelper(Jim_Interp
*interp
, int argc
,
9216 Jim_Obj
*const *argv
, int op
)
9218 jim_wide wideValue
, res
;
9219 double doubleValue
, doubleRes
;
9222 res
= (op
== JIM_EXPROP_ADD
) ? 0 : 1;
9224 for (i
= 1; i
< argc
; i
++) {
9225 if (Jim_GetWide(interp
, argv
[i
], &wideValue
) != JIM_OK
)
9227 if (op
== JIM_EXPROP_ADD
)
9232 Jim_SetResult(interp
, Jim_NewIntObj(interp
, res
));
9235 doubleRes
= (double) res
;
9236 for (;i
< argc
; i
++) {
9237 if (Jim_GetDouble(interp
, argv
[i
], &doubleValue
) != JIM_OK
)
9239 if (op
== JIM_EXPROP_ADD
)
9240 doubleRes
+= doubleValue
;
9242 doubleRes
*= doubleValue
;
9244 Jim_SetResult(interp
, Jim_NewDoubleObj(interp
, doubleRes
));
9248 /* Helper for [-] and [/] */
9249 static int Jim_SubDivHelper(Jim_Interp
*interp
, int argc
,
9250 Jim_Obj
*const *argv
, int op
)
9252 jim_wide wideValue
, res
= 0;
9253 double doubleValue
, doubleRes
= 0;
9257 Jim_WrongNumArgs(interp
, 1, argv
, "number ?number ... number?");
9259 } else if (argc
== 2) {
9260 /* The arity = 2 case is different. For [- x] returns -x,
9261 * while [/ x] returns 1/x. */
9262 if (Jim_GetWide(interp
, argv
[1], &wideValue
) != JIM_OK
) {
9263 if (Jim_GetDouble(interp
, argv
[1], &doubleValue
) !=
9268 if (op
== JIM_EXPROP_SUB
)
9269 doubleRes
= -doubleValue
;
9271 doubleRes
= 1.0/doubleValue
;
9272 Jim_SetResult(interp
, Jim_NewDoubleObj(interp
,
9277 if (op
== JIM_EXPROP_SUB
) {
9279 Jim_SetResult(interp
, Jim_NewIntObj(interp
, res
));
9281 doubleRes
= 1.0/wideValue
;
9282 Jim_SetResult(interp
, Jim_NewDoubleObj(interp
,
9287 if (Jim_GetWide(interp
, argv
[1], &res
) != JIM_OK
) {
9288 if (Jim_GetDouble(interp
, argv
[1], &doubleRes
)
9296 for (i
= 2; i
< argc
; i
++) {
9297 if (Jim_GetWide(interp
, argv
[i
], &wideValue
) != JIM_OK
) {
9298 doubleRes
= (double) res
;
9301 if (op
== JIM_EXPROP_SUB
)
9306 Jim_SetResult(interp
, Jim_NewIntObj(interp
, res
));
9309 for (;i
< argc
; i
++) {
9310 if (Jim_GetDouble(interp
, argv
[i
], &doubleValue
) != JIM_OK
)
9312 if (op
== JIM_EXPROP_SUB
)
9313 doubleRes
-= doubleValue
;
9315 doubleRes
/= doubleValue
;
9317 Jim_SetResult(interp
, Jim_NewDoubleObj(interp
, doubleRes
));
9323 static int Jim_AddCoreCommand(Jim_Interp
*interp
, int argc
,
9324 Jim_Obj
*const *argv
)
9326 return Jim_AddMulHelper(interp
, argc
, argv
, JIM_EXPROP_ADD
);
9330 static int Jim_MulCoreCommand(Jim_Interp
*interp
, int argc
,
9331 Jim_Obj
*const *argv
)
9333 return Jim_AddMulHelper(interp
, argc
, argv
, JIM_EXPROP_MUL
);
9337 static int Jim_SubCoreCommand(Jim_Interp
*interp
, int argc
,
9338 Jim_Obj
*const *argv
)
9340 return Jim_SubDivHelper(interp
, argc
, argv
, JIM_EXPROP_SUB
);
9344 static int Jim_DivCoreCommand(Jim_Interp
*interp
, int argc
,
9345 Jim_Obj
*const *argv
)
9347 return Jim_SubDivHelper(interp
, argc
, argv
, JIM_EXPROP_DIV
);
9351 static int Jim_SetCoreCommand(Jim_Interp
*interp
, int argc
,
9352 Jim_Obj
*const *argv
)
9354 if (argc
!= 2 && argc
!= 3) {
9355 Jim_WrongNumArgs(interp
, 1, argv
, "varName ?newValue?");
9360 objPtr
= Jim_GetVariable(interp
, argv
[1], JIM_ERRMSG
);
9363 Jim_SetResult(interp
, objPtr
);
9366 /* argc == 3 case. */
9367 if (Jim_SetVariable(interp
, argv
[1], argv
[2]) != JIM_OK
)
9369 Jim_SetResult(interp
, argv
[2]);
9374 static int Jim_UnsetCoreCommand(Jim_Interp
*interp
, int argc
,
9375 Jim_Obj
*const *argv
)
9380 Jim_WrongNumArgs(interp
, 1, argv
, "varName ?varName ...?");
9383 for (i
= 1; i
< argc
; i
++) {
9384 if (Jim_UnsetVariable(interp
, argv
[i
], JIM_ERRMSG
) != JIM_OK
)
9391 static int Jim_IncrCoreCommand(Jim_Interp
*interp
, int argc
,
9392 Jim_Obj
*const *argv
)
9394 jim_wide wideValue
, increment
= 1;
9397 if (argc
!= 2 && argc
!= 3) {
9398 Jim_WrongNumArgs(interp
, 1, argv
, "varName ?increment?");
9402 if (Jim_GetWide(interp
, argv
[2], &increment
) != JIM_OK
)
9405 intObjPtr
= Jim_GetVariable(interp
, argv
[1], JIM_ERRMSG
);
9406 if (!intObjPtr
) return JIM_ERR
;
9407 if (Jim_GetWide(interp
, intObjPtr
, &wideValue
) != JIM_OK
)
9409 if (Jim_IsShared(intObjPtr
)) {
9410 intObjPtr
= Jim_NewIntObj(interp
, wideValue
+increment
);
9411 if (Jim_SetVariable(interp
, argv
[1], intObjPtr
) != JIM_OK
) {
9412 Jim_FreeNewObj(interp
, intObjPtr
);
9416 Jim_SetWide(interp
, intObjPtr
, wideValue
+increment
);
9417 /* The following step is required in order to invalidate the
9418 * string repr of "FOO" if the var name is on the form of "FOO(IDX)" */
9419 if (Jim_SetVariable(interp
, argv
[1], intObjPtr
) != JIM_OK
) {
9423 Jim_SetResult(interp
, intObjPtr
);
9428 static int Jim_WhileCoreCommand(Jim_Interp
*interp
, int argc
,
9429 Jim_Obj
*const *argv
)
9432 Jim_WrongNumArgs(interp
, 1, argv
, "condition body");
9435 /* Try to run a specialized version of while if the expression
9436 * is in one of the following forms:
9438 * $a < CONST, $a < $b
9439 * $a <= CONST, $a <= $b
9440 * $a > CONST, $a > $b
9441 * $a >= CONST, $a >= $b
9442 * $a != CONST, $a != $b
9443 * $a == CONST, $a == $b
9449 #ifdef JIM_OPTIMIZATION
9452 Jim_Obj
*varAObjPtr
= NULL
, *varBObjPtr
= NULL
, *objPtr
;
9453 int exprLen
, retval
;
9455 /* STEP 1 -- Check if there are the conditions to run the specialized
9456 * version of while */
9458 if ((expr
= Jim_GetExpression(interp
, argv
[1])) == NULL
) goto noopt
;
9459 if (expr
->len
<= 0 || expr
->len
> 3) goto noopt
;
9462 if (expr
->opcode
[0] != JIM_EXPROP_VARIABLE
&&
9463 expr
->opcode
[0] != JIM_EXPROP_NUMBER
)
9467 if (expr
->opcode
[1] != JIM_EXPROP_NOT
||
9468 expr
->opcode
[0] != JIM_EXPROP_VARIABLE
)
9472 if (expr
->opcode
[0] != JIM_EXPROP_VARIABLE
||
9473 (expr
->opcode
[1] != JIM_EXPROP_NUMBER
&&
9474 expr
->opcode
[1] != JIM_EXPROP_VARIABLE
))
9476 switch(expr
->opcode
[2]) {
9478 case JIM_EXPROP_LTE
:
9480 case JIM_EXPROP_GTE
:
9481 case JIM_EXPROP_NUMEQ
:
9482 case JIM_EXPROP_NUMNE
:
9491 "Unexpected default reached in Jim_WhileCoreCommand()");
9495 /* STEP 2 -- conditions meet. Initialization. Take different
9496 * branches for different expression lengths. */
9497 exprLen
= expr
->len
;
9502 if (expr
->opcode
[0] == JIM_EXPROP_VARIABLE
) {
9503 varAObjPtr
= expr
->obj
[0];
9504 Jim_IncrRefCount(varAObjPtr
);
9506 if (Jim_GetWide(interp
, expr
->obj
[0], &wideValue
) != JIM_OK
)
9512 Jim_GetVariable(interp
, varAObjPtr
, JIM_NONE
)) ||
9513 Jim_GetWide(interp
, objPtr
, &wideValue
) != JIM_OK
)
9515 Jim_DecrRefCount(interp
, varAObjPtr
);
9519 if (!wideValue
) break;
9520 if ((retval
= Jim_EvalObj(interp
, argv
[2])) != JIM_OK
) {
9524 Jim_DecrRefCount(interp
, varAObjPtr
);
9532 Jim_DecrRefCount(interp
, varAObjPtr
);
9538 Jim_DecrRefCount(interp
, varAObjPtr
);
9539 } else if (exprLen
== 3) {
9540 jim_wide wideValueA
, wideValueB
, cmpRes
= 0;
9541 int cmpType
= expr
->opcode
[2];
9543 varAObjPtr
= expr
->obj
[0];
9544 Jim_IncrRefCount(varAObjPtr
);
9545 if (expr
->opcode
[1] == JIM_EXPROP_VARIABLE
) {
9546 varBObjPtr
= expr
->obj
[1];
9547 Jim_IncrRefCount(varBObjPtr
);
9549 if (Jim_GetWide(interp
, expr
->obj
[1], &wideValueB
) != JIM_OK
)
9553 if (!(objPtr
= Jim_GetVariable(interp
, varAObjPtr
, JIM_NONE
)) ||
9554 Jim_GetWide(interp
, objPtr
, &wideValueA
) != JIM_OK
)
9556 Jim_DecrRefCount(interp
, varAObjPtr
);
9558 Jim_DecrRefCount(interp
, varBObjPtr
);
9563 Jim_GetVariable(interp
, varBObjPtr
, JIM_NONE
)) ||
9564 Jim_GetWide(interp
, objPtr
, &wideValueB
) != JIM_OK
)
9566 Jim_DecrRefCount(interp
, varAObjPtr
);
9568 Jim_DecrRefCount(interp
, varBObjPtr
);
9574 cmpRes
= wideValueA
< wideValueB
; break;
9575 case JIM_EXPROP_LTE
:
9576 cmpRes
= wideValueA
<= wideValueB
; break;
9578 cmpRes
= wideValueA
> wideValueB
; break;
9579 case JIM_EXPROP_GTE
:
9580 cmpRes
= wideValueA
>= wideValueB
; break;
9581 case JIM_EXPROP_NUMEQ
:
9582 cmpRes
= wideValueA
== wideValueB
; break;
9583 case JIM_EXPROP_NUMNE
:
9584 cmpRes
= wideValueA
!= wideValueB
; break;
9587 if ((retval
= Jim_EvalObj(interp
, argv
[2])) != JIM_OK
) {
9590 Jim_DecrRefCount(interp
, varAObjPtr
);
9592 Jim_DecrRefCount(interp
, varBObjPtr
);
9599 Jim_DecrRefCount(interp
, varAObjPtr
);
9601 Jim_DecrRefCount(interp
, varBObjPtr
);
9606 Jim_DecrRefCount(interp
, varAObjPtr
);
9608 Jim_DecrRefCount(interp
, varBObjPtr
);
9610 /* TODO: case for len == 2 */
9613 Jim_SetEmptyResult(interp
);
9619 /* The general purpose implementation of while starts here */
9621 int boolean
, retval
;
9623 if ((retval
= Jim_GetBoolFromExpr(interp
, argv
[1],
9624 &boolean
)) != JIM_OK
)
9626 if (!boolean
) break;
9627 if ((retval
= Jim_EvalObj(interp
, argv
[2])) != JIM_OK
) {
9641 Jim_SetEmptyResult(interp
);
9646 static int Jim_ForCoreCommand(Jim_Interp
*interp
, int argc
,
9647 Jim_Obj
*const *argv
)
9652 Jim_WrongNumArgs(interp
, 1, argv
, "start test next body");
9655 /* Check if the for is on the form:
9656 * for {set i CONST} {$i < CONST} {incr i}
9657 * for {set i CONST} {$i < $j} {incr i}
9658 * for {set i CONST} {$i <= CONST} {incr i}
9659 * for {set i CONST} {$i <= $j} {incr i}
9660 * XXX: NOTE: if variable traces are implemented, this optimization
9661 * need to be modified to check for the proc epoch at every variable
9663 #ifdef JIM_OPTIMIZATION
9665 ScriptObj
*initScript
, *incrScript
;
9667 jim_wide start
, stop
, currentVal
;
9668 unsigned jim_wide procEpoch
= interp
->procEpoch
;
9669 Jim_Obj
*varNamePtr
, *stopVarNamePtr
= NULL
, *objPtr
;
9671 struct Jim_Cmd
*cmdPtr
;
9673 /* Do it only if there aren't shared arguments */
9674 if (argv
[1] == argv
[2] || argv
[2] == argv
[3] || argv
[1] == argv
[3])
9676 initScript
= Jim_GetScript(interp
, argv
[1]);
9677 expr
= Jim_GetExpression(interp
, argv
[2]);
9678 incrScript
= Jim_GetScript(interp
, argv
[3]);
9680 /* Ensure proper lengths to start */
9681 if (initScript
->len
!= 6) goto evalstart
;
9682 if (incrScript
->len
!= 4) goto evalstart
;
9683 if (expr
->len
!= 3) goto evalstart
;
9684 /* Ensure proper token types. */
9685 if (initScript
->token
[2].type
!= JIM_TT_ESC
||
9686 initScript
->token
[4].type
!= JIM_TT_ESC
||
9687 incrScript
->token
[2].type
!= JIM_TT_ESC
||
9688 expr
->opcode
[0] != JIM_EXPROP_VARIABLE
||
9689 (expr
->opcode
[1] != JIM_EXPROP_NUMBER
&&
9690 expr
->opcode
[1] != JIM_EXPROP_VARIABLE
) ||
9691 (expr
->opcode
[2] != JIM_EXPROP_LT
&&
9692 expr
->opcode
[2] != JIM_EXPROP_LTE
))
9694 cmpType
= expr
->opcode
[2];
9695 /* Initialization command must be [set] */
9696 cmdPtr
= Jim_GetCommand(interp
, initScript
->token
[0].objPtr
, JIM_NONE
);
9697 if (cmdPtr
== NULL
|| cmdPtr
->cmdProc
!= Jim_SetCoreCommand
)
9699 /* Update command must be incr */
9700 cmdPtr
= Jim_GetCommand(interp
, incrScript
->token
[0].objPtr
, JIM_NONE
);
9701 if (cmdPtr
== NULL
|| cmdPtr
->cmdProc
!= Jim_IncrCoreCommand
)
9703 /* set, incr, expression must be about the same variable */
9704 if (!Jim_StringEqObj(initScript
->token
[2].objPtr
,
9705 incrScript
->token
[2].objPtr
, 0))
9707 if (!Jim_StringEqObj(initScript
->token
[2].objPtr
,
9710 /* Check that the initialization and comparison are valid integers */
9711 if (Jim_GetWide(interp
, initScript
->token
[4].objPtr
, &start
) == JIM_ERR
)
9713 if (expr
->opcode
[1] == JIM_EXPROP_NUMBER
&&
9714 Jim_GetWide(interp
, expr
->obj
[1], &stop
) == JIM_ERR
)
9719 /* Initialization */
9720 varNamePtr
= expr
->obj
[0];
9721 if (expr
->opcode
[1] == JIM_EXPROP_VARIABLE
) {
9722 stopVarNamePtr
= expr
->obj
[1];
9723 Jim_IncrRefCount(stopVarNamePtr
);
9725 Jim_IncrRefCount(varNamePtr
);
9727 /* --- OPTIMIZED FOR --- */
9729 objPtr
= Jim_NewIntObj(interp
, start
);
9730 if (Jim_SetVariable(interp
, varNamePtr
, objPtr
) != JIM_OK
) {
9731 Jim_DecrRefCount(interp
, varNamePtr
);
9732 if (stopVarNamePtr
) Jim_DecrRefCount(interp
, stopVarNamePtr
);
9733 Jim_FreeNewObj(interp
, objPtr
);
9737 /* === Check condition === */
9739 objPtr
= Jim_GetVariable(interp
, varNamePtr
, JIM_NONE
);
9740 if (objPtr
== NULL
||
9741 Jim_GetWide(interp
, objPtr
, ¤tVal
) != JIM_OK
)
9743 Jim_DecrRefCount(interp
, varNamePtr
);
9744 if (stopVarNamePtr
) Jim_DecrRefCount(interp
, stopVarNamePtr
);
9747 /* Immediate or Variable? get the 'stop' value if the latter. */
9748 if (stopVarNamePtr
) {
9749 objPtr
= Jim_GetVariable(interp
, stopVarNamePtr
, JIM_NONE
);
9750 if (objPtr
== NULL
||
9751 Jim_GetWide(interp
, objPtr
, &stop
) != JIM_OK
)
9753 Jim_DecrRefCount(interp
, varNamePtr
);
9754 Jim_DecrRefCount(interp
, stopVarNamePtr
);
9758 if (cmpType
== JIM_EXPROP_LT
) {
9759 if (currentVal
>= stop
) break;
9761 if (currentVal
> stop
) break;
9764 if ((retval
= Jim_EvalObj(interp
, argv
[4])) != JIM_OK
) {
9768 Jim_DecrRefCount(interp
, stopVarNamePtr
);
9769 Jim_DecrRefCount(interp
, varNamePtr
);
9776 Jim_DecrRefCount(interp
, stopVarNamePtr
);
9777 Jim_DecrRefCount(interp
, varNamePtr
);
9781 /* If there was a change in procedures/command continue
9782 * with the usual [for] command implementation */
9783 if (procEpoch
!= interp
->procEpoch
) {
9785 Jim_DecrRefCount(interp
, stopVarNamePtr
);
9786 Jim_DecrRefCount(interp
, varNamePtr
);
9790 objPtr
= Jim_GetVariable(interp
, varNamePtr
, JIM_ERRMSG
);
9791 if (objPtr
->refCount
== 1 && objPtr
->typePtr
== &intObjType
) {
9792 objPtr
->internalRep
.wideValue
++;
9793 Jim_InvalidateStringRep(objPtr
);
9797 if (Jim_GetWide(interp
, objPtr
, ¤tVal
) == JIM_ERR
) {
9799 Jim_DecrRefCount(interp
, stopVarNamePtr
);
9800 Jim_DecrRefCount(interp
, varNamePtr
);
9803 auxObjPtr
= Jim_NewIntObj(interp
, currentVal
+1);
9804 if (Jim_SetVariable(interp
, varNamePtr
, auxObjPtr
) == JIM_ERR
) {
9806 Jim_DecrRefCount(interp
, stopVarNamePtr
);
9807 Jim_DecrRefCount(interp
, varNamePtr
);
9808 Jim_FreeNewObj(interp
, auxObjPtr
);
9814 Jim_DecrRefCount(interp
, stopVarNamePtr
);
9815 Jim_DecrRefCount(interp
, varNamePtr
);
9816 Jim_SetEmptyResult(interp
);
9822 if ((retval
= Jim_EvalObj(interp
, argv
[1])) != JIM_OK
)
9827 /* Test the condition */
9828 if ((retval
= Jim_GetBoolFromExpr(interp
, argv
[2], &boolean
))
9831 if (!boolean
) break;
9833 if ((retval
= Jim_EvalObj(interp
, argv
[4])) != JIM_OK
) {
9847 if ((retval
= Jim_EvalObj(interp
, argv
[3])) != JIM_OK
) {
9861 Jim_SetEmptyResult(interp
);
9865 /* foreach + lmap implementation. */
9866 static int JimForeachMapHelper(Jim_Interp
*interp
, int argc
,
9867 Jim_Obj
*const *argv
, int doMap
)
9869 int result
= JIM_ERR
, i
, nbrOfLists
, *listsIdx
, *listsEnd
;
9871 Jim_Obj
*emptyStr
, *script
, *mapRes
= NULL
;
9873 if (argc
< 4 || argc
% 2 != 0) {
9874 Jim_WrongNumArgs(interp
, 1, argv
, "varList list ?varList list ...? script");
9878 mapRes
= Jim_NewListObj(interp
, NULL
, 0);
9879 Jim_IncrRefCount(mapRes
);
9881 emptyStr
= Jim_NewEmptyStringObj(interp
);
9882 Jim_IncrRefCount(emptyStr
);
9883 script
= argv
[argc
-1]; /* Last argument is a script */
9884 nbrOfLists
= (argc
- 1 - 1) / 2; /* argc - 'foreach' - script */
9885 listsIdx
= (int*)Jim_Alloc(nbrOfLists
* sizeof(int));
9886 listsEnd
= (int*)Jim_Alloc(nbrOfLists
*2 * sizeof(int));
9887 /* Initialize iterators and remember max nbr elements each list */
9888 memset(listsIdx
, 0, nbrOfLists
* sizeof(int));
9889 /* Remember lengths of all lists and calculate how much rounds to loop */
9890 for (i
=0; i
< nbrOfLists
*2; i
+= 2) {
9893 Jim_ListLength(interp
, argv
[i
+1], &listsEnd
[i
]);
9894 Jim_ListLength(interp
, argv
[i
+2], &listsEnd
[i
+1]);
9895 if (listsEnd
[i
] == 0) {
9896 Jim_SetResultString(interp
, "foreach varlist is empty", -1);
9899 cnt
= div(listsEnd
[i
+1], listsEnd
[i
]);
9900 count
= cnt
.quot
+ (cnt
.rem
? 1 : 0);
9901 if (count
> nbrOfLoops
)
9904 for (; nbrOfLoops
-- > 0; ) {
9905 for (i
=0; i
< nbrOfLists
; ++i
) {
9906 int varIdx
= 0, var
= i
* 2;
9907 while (varIdx
< listsEnd
[var
]) {
9908 Jim_Obj
*varName
, *ele
;
9909 int lst
= i
* 2 + 1;
9910 if (Jim_ListIndex(interp
, argv
[var
+1], varIdx
, &varName
, JIM_ERRMSG
)
9913 if (listsIdx
[i
] < listsEnd
[lst
]) {
9914 if (Jim_ListIndex(interp
, argv
[lst
+1], listsIdx
[i
], &ele
, JIM_ERRMSG
)
9917 if (Jim_SetVariable(interp
, varName
, ele
) != JIM_OK
) {
9918 Jim_SetResultString(interp
, "couldn't set loop variable: ", -1);
9921 ++listsIdx
[i
]; /* Remember next iterator of current list */
9922 } else if (Jim_SetVariable(interp
, varName
, emptyStr
) != JIM_OK
) {
9923 Jim_SetResultString(interp
, "couldn't set loop variable: ", -1);
9926 ++varIdx
; /* Next variable */
9929 switch (result
= Jim_EvalObj(interp
, script
)) {
9932 Jim_ListAppendElement(interp
, mapRes
, interp
->result
);
9946 Jim_SetResult(interp
, mapRes
);
9948 Jim_SetEmptyResult(interp
);
9951 Jim_DecrRefCount(interp
, mapRes
);
9952 Jim_DecrRefCount(interp
, emptyStr
);
9959 static int Jim_ForeachCoreCommand(Jim_Interp
*interp
, int argc
,
9960 Jim_Obj
*const *argv
)
9962 return JimForeachMapHelper(interp
, argc
, argv
, 0);
9966 static int Jim_LmapCoreCommand(Jim_Interp
*interp
, int argc
,
9967 Jim_Obj
*const *argv
)
9969 return JimForeachMapHelper(interp
, argc
, argv
, 1);
9973 static int Jim_IfCoreCommand(Jim_Interp
*interp
, int argc
,
9974 Jim_Obj
*const *argv
)
9976 int boolean
, retval
, current
= 1, falsebody
= 0;
9979 /* Far not enough arguments given! */
9980 if (current
>= argc
) goto err
;
9981 if ((retval
= Jim_GetBoolFromExpr(interp
,
9982 argv
[current
++], &boolean
))
9985 /* There lacks something, isn't it? */
9986 if (current
>= argc
) goto err
;
9987 if (Jim_CompareStringImmediate(interp
, argv
[current
],
9989 /* Tsk tsk, no then-clause? */
9990 if (current
>= argc
) goto err
;
9992 return Jim_EvalObj(interp
, argv
[current
]);
9993 /* Ok: no else-clause follows */
9994 if (++current
>= argc
) return JIM_OK
;
9995 falsebody
= current
++;
9996 if (Jim_CompareStringImmediate(interp
, argv
[falsebody
],
9998 /* IIICKS - else-clause isn't last cmd? */
9999 if (current
!= argc
-1) goto err
;
10000 return Jim_EvalObj(interp
, argv
[current
]);
10001 } else if (Jim_CompareStringImmediate(interp
,
10002 argv
[falsebody
], "elseif"))
10003 /* Ok: elseif follows meaning all the stuff
10004 * again (how boring...) */
10006 /* OOPS - else-clause is not last cmd?*/
10007 else if (falsebody
!= argc
-1)
10009 return Jim_EvalObj(interp
, argv
[falsebody
]);
10014 Jim_WrongNumArgs(interp
, 1, argv
, "condition ?then? trueBody ?elseif ...? ?else? falseBody");
10018 enum {SWITCH_EXACT
, SWITCH_GLOB
, SWITCH_RE
, SWITCH_CMD
, SWITCH_UNKNOWN
};
10021 static int Jim_SwitchCoreCommand(Jim_Interp
*interp
, int argc
,
10022 Jim_Obj
*const *argv
)
10024 int retcode
= JIM_ERR
, matchOpt
= SWITCH_EXACT
, opt
=1, patCount
, i
;
10025 Jim_Obj
*command
= 0, *const *caseList
= 0, *strObj
;
10026 Jim_Obj
*script
= 0;
10027 if (argc
< 3) goto wrongnumargs
;
10028 for (opt
=1; opt
< argc
; ++opt
) {
10029 const char *option
= Jim_GetString(argv
[opt
], 0);
10030 if (*option
!= '-') break;
10031 else if (strncmp(option
, "--", 2) == 0) { ++opt
; break; }
10032 else if (strncmp(option
, "-exact", 2) == 0) matchOpt
= SWITCH_EXACT
;
10033 else if (strncmp(option
, "-glob", 2) == 0) matchOpt
= SWITCH_GLOB
;
10034 else if (strncmp(option
, "-regexp", 2) == 0) matchOpt
= SWITCH_RE
;
10035 else if (strncmp(option
, "-command", 2) == 0) { matchOpt
= SWITCH_CMD
;
10036 if ((argc
- opt
) < 2) goto wrongnumargs
;
10037 command
= argv
[++opt
];
10039 Jim_SetResult(interp
, Jim_NewEmptyStringObj(interp
));
10040 Jim_AppendStrings(interp
, Jim_GetResult(interp
),
10041 "bad option \"", option
, "\": must be -exact, -glob, "
10042 "-regexp, -command procname or --", 0);
10045 if ((argc
- opt
) < 2) goto wrongnumargs
;
10047 strObj
= argv
[opt
++];
10048 patCount
= argc
- opt
;
10049 if (patCount
== 1) {
10051 JimListGetElements(interp
, argv
[opt
], &patCount
, &vector
);
10054 caseList
= &argv
[opt
];
10055 if (patCount
== 0 || patCount
% 2 != 0) goto wrongnumargs
;
10056 for (i
=0; script
== 0 && i
< patCount
; i
+= 2) {
10057 Jim_Obj
*patObj
= caseList
[i
];
10058 if (!Jim_CompareStringImmediate(interp
, patObj
, "default")
10059 || i
< (patCount
-2)) {
10060 switch (matchOpt
) {
10062 if (Jim_StringEqObj(strObj
, patObj
, 0))
10063 script
= caseList
[i
+1];
10066 if (Jim_StringMatchObj(patObj
, strObj
, 0))
10067 script
= caseList
[i
+1];
10070 command
= Jim_NewStringObj(interp
, "regexp", -1);
10071 /* Fall thru intentionally */
10073 Jim_Obj
*parms
[] = {command
, patObj
, strObj
};
10074 int rc
= Jim_EvalObjVector(interp
, 3, parms
);
10076 /* After the execution of a command we need to
10077 * make sure to reconvert the object into a list
10078 * again. Only for the single-list style [switch]. */
10079 if (argc
-opt
== 1) {
10081 JimListGetElements(interp
, argv
[opt
], &patCount
,
10085 /* command is here already decref'd */
10086 if (rc
!= JIM_OK
) {
10090 rc
= Jim_GetLong(interp
, Jim_GetResult(interp
), &matching
);
10091 if (rc
!= JIM_OK
) {
10096 script
= caseList
[i
+1];
10100 Jim_SetResult(interp
, Jim_NewEmptyStringObj(interp
));
10101 Jim_AppendStrings(interp
, Jim_GetResult(interp
),
10102 "internal error: no such option implemented", 0);
10106 script
= caseList
[i
+1];
10109 for(; i
< patCount
&& Jim_CompareStringImmediate(interp
, script
, "-");
10111 script
= caseList
[i
+1];
10112 if (script
&& Jim_CompareStringImmediate(interp
, script
, "-")) {
10113 Jim_SetResult(interp
, Jim_NewEmptyStringObj(interp
));
10114 Jim_AppendStrings(interp
, Jim_GetResult(interp
),
10115 "no body specified for pattern \"",
10116 Jim_GetString(caseList
[i
-2], 0), "\"", 0);
10120 Jim_SetEmptyResult(interp
);
10122 retcode
= Jim_EvalObj(interp
, script
);
10125 Jim_WrongNumArgs(interp
, 1, argv
, "?options? string "
10126 "pattern body ... ?default body? or "
10127 "{pattern body ?pattern body ...?}");
10133 static int Jim_ListCoreCommand(Jim_Interp
*interp
, int argc
,
10134 Jim_Obj
*const *argv
)
10136 Jim_Obj
*listObjPtr
;
10138 listObjPtr
= Jim_NewListObj(interp
, argv
+1, argc
-1);
10139 Jim_SetResult(interp
, listObjPtr
);
10144 static int Jim_LindexCoreCommand(Jim_Interp
*interp
, int argc
,
10145 Jim_Obj
*const *argv
)
10147 Jim_Obj
*objPtr
, *listObjPtr
;
10152 Jim_WrongNumArgs(interp
, 1, argv
, "list index ?...?");
10156 Jim_IncrRefCount(objPtr
);
10157 for (i
= 2; i
< argc
; i
++) {
10158 listObjPtr
= objPtr
;
10159 if (Jim_GetIndex(interp
, argv
[i
], &index
) != JIM_OK
) {
10160 Jim_DecrRefCount(interp
, listObjPtr
);
10163 if (Jim_ListIndex(interp
, listObjPtr
, index
, &objPtr
,
10164 JIM_NONE
) != JIM_OK
) {
10165 /* Returns an empty object if the index
10166 * is out of range. */
10167 Jim_DecrRefCount(interp
, listObjPtr
);
10168 Jim_SetEmptyResult(interp
);
10171 Jim_IncrRefCount(objPtr
);
10172 Jim_DecrRefCount(interp
, listObjPtr
);
10174 Jim_SetResult(interp
, objPtr
);
10175 Jim_DecrRefCount(interp
, objPtr
);
10180 static int Jim_LlengthCoreCommand(Jim_Interp
*interp
, int argc
,
10181 Jim_Obj
*const *argv
)
10186 Jim_WrongNumArgs(interp
, 1, argv
, "list");
10189 Jim_ListLength(interp
, argv
[1], &len
);
10190 Jim_SetResult(interp
, Jim_NewIntObj(interp
, len
));
10195 static int Jim_LappendCoreCommand(Jim_Interp
*interp
, int argc
,
10196 Jim_Obj
*const *argv
)
10198 Jim_Obj
*listObjPtr
;
10202 Jim_WrongNumArgs(interp
, 1, argv
, "varName ?value value ...?");
10205 listObjPtr
= Jim_GetVariable(interp
, argv
[1], JIM_NONE
);
10207 /* Create the list if it does not exists */
10208 listObjPtr
= Jim_NewListObj(interp
, NULL
, 0);
10209 if (Jim_SetVariable(interp
, argv
[1], listObjPtr
) != JIM_OK
) {
10210 Jim_FreeNewObj(interp
, listObjPtr
);
10214 shared
= Jim_IsShared(listObjPtr
);
10216 listObjPtr
= Jim_DuplicateObj(interp
, listObjPtr
);
10217 for (i
= 2; i
< argc
; i
++)
10218 Jim_ListAppendElement(interp
, listObjPtr
, argv
[i
]);
10219 if (Jim_SetVariable(interp
, argv
[1], listObjPtr
) != JIM_OK
) {
10221 Jim_FreeNewObj(interp
, listObjPtr
);
10224 Jim_SetResult(interp
, listObjPtr
);
10229 static int Jim_LinsertCoreCommand(Jim_Interp
*interp
, int argc
,
10230 Jim_Obj
*const *argv
)
10236 Jim_WrongNumArgs(interp
, 1, argv
, "list index element "
10241 if (Jim_IsShared(listPtr
))
10242 listPtr
= Jim_DuplicateObj(interp
, listPtr
);
10243 if (Jim_GetIndex(interp
, argv
[2], &index
) != JIM_OK
)
10245 Jim_ListLength(interp
, listPtr
, &len
);
10248 else if (index
< 0)
10249 index
= len
+ index
+ 1;
10250 Jim_ListInsertElements(interp
, listPtr
, index
, argc
-3, &argv
[3]);
10251 Jim_SetResult(interp
, listPtr
);
10254 if (listPtr
!= argv
[1]) {
10255 Jim_FreeNewObj(interp
, listPtr
);
10261 static int Jim_LsetCoreCommand(Jim_Interp
*interp
, int argc
,
10262 Jim_Obj
*const *argv
)
10265 Jim_WrongNumArgs(interp
, 1, argv
, "listVar ?index...? newVal");
10267 } else if (argc
== 3) {
10268 if (Jim_SetVariable(interp
, argv
[1], argv
[2]) != JIM_OK
)
10270 Jim_SetResult(interp
, argv
[2]);
10273 if (Jim_SetListIndex(interp
, argv
[1], argv
+2, argc
-3, argv
[argc
-1])
10274 == JIM_ERR
) return JIM_ERR
;
10279 static int Jim_LsortCoreCommand(Jim_Interp
*interp
, int argc
, Jim_Obj
*const argv
[])
10281 const char *options
[] = {
10282 "-ascii", "-nocase", "-increasing", "-decreasing", NULL
10284 enum {OPT_ASCII
, OPT_NOCASE
, OPT_INCREASING
, OPT_DECREASING
};
10286 int i
, lsortType
= JIM_LSORT_ASCII
; /* default sort type */
10287 int decreasing
= 0;
10290 Jim_WrongNumArgs(interp
, 1, argv
, "?options? list");
10293 for (i
= 1; i
< (argc
-1); i
++) {
10296 if (Jim_GetEnum(interp
, argv
[i
], options
, &option
, "option", JIM_ERRMSG
)
10300 case OPT_ASCII
: lsortType
= JIM_LSORT_ASCII
; break;
10301 case OPT_NOCASE
: lsortType
= JIM_LSORT_NOCASE
; break;
10302 case OPT_INCREASING
: decreasing
= 0; break;
10303 case OPT_DECREASING
: decreasing
= 1; break;
10307 switch(lsortType
) {
10308 case JIM_LSORT_ASCII
: lsortType
= JIM_LSORT_ASCII_DECR
; break;
10309 case JIM_LSORT_NOCASE
: lsortType
= JIM_LSORT_NOCASE_DECR
; break;
10312 resObj
= Jim_DuplicateObj(interp
, argv
[argc
-1]);
10313 ListSortElements(interp
, resObj
, lsortType
);
10314 Jim_SetResult(interp
, resObj
);
10319 static int Jim_AppendCoreCommand(Jim_Interp
*interp
, int argc
,
10320 Jim_Obj
*const *argv
)
10322 Jim_Obj
*stringObjPtr
;
10326 Jim_WrongNumArgs(interp
, 1, argv
, "varName ?value value ...?");
10330 stringObjPtr
= Jim_GetVariable(interp
, argv
[1], JIM_ERRMSG
);
10331 if (!stringObjPtr
) return JIM_ERR
;
10333 stringObjPtr
= Jim_GetVariable(interp
, argv
[1], JIM_NONE
);
10334 if (!stringObjPtr
) {
10335 /* Create the string if it does not exists */
10336 stringObjPtr
= Jim_NewEmptyStringObj(interp
);
10337 if (Jim_SetVariable(interp
, argv
[1], stringObjPtr
)
10339 Jim_FreeNewObj(interp
, stringObjPtr
);
10344 shared
= Jim_IsShared(stringObjPtr
);
10346 stringObjPtr
= Jim_DuplicateObj(interp
, stringObjPtr
);
10347 for (i
= 2; i
< argc
; i
++)
10348 Jim_AppendObj(interp
, stringObjPtr
, argv
[i
]);
10349 if (Jim_SetVariable(interp
, argv
[1], stringObjPtr
) != JIM_OK
) {
10351 Jim_FreeNewObj(interp
, stringObjPtr
);
10354 Jim_SetResult(interp
, stringObjPtr
);
10359 static int Jim_DebugCoreCommand(Jim_Interp
*interp
, int argc
,
10360 Jim_Obj
*const *argv
)
10362 const char *options
[] = {
10363 "refcount", "objcount", "objects", "invstr", "scriptlen", "exprlen",
10368 OPT_REFCOUNT
, OPT_OBJCOUNT
, OPT_OBJECTS
, OPT_INVSTR
, OPT_SCRIPTLEN
,
10369 OPT_EXPRLEN
, OPT_EXPRBC
10374 Jim_WrongNumArgs(interp
, 1, argv
, "option ?...?");
10377 if (Jim_GetEnum(interp
, argv
[1], options
, &option
, "option",
10378 JIM_ERRMSG
) != JIM_OK
)
10380 if (option
== OPT_REFCOUNT
) {
10382 Jim_WrongNumArgs(interp
, 2, argv
, "object");
10385 Jim_SetResult(interp
, Jim_NewIntObj(interp
, argv
[2]->refCount
));
10387 } else if (option
== OPT_OBJCOUNT
) {
10388 int freeobj
= 0, liveobj
= 0;
10393 Jim_WrongNumArgs(interp
, 2, argv
, "");
10396 /* Count the number of free objects. */
10397 objPtr
= interp
->freeList
;
10400 objPtr
= objPtr
->nextObjPtr
;
10402 /* Count the number of live objects. */
10403 objPtr
= interp
->liveList
;
10406 objPtr
= objPtr
->nextObjPtr
;
10408 /* Set the result string and return. */
10409 sprintf(buf
, "free %d used %d", freeobj
, liveobj
);
10410 Jim_SetResultString(interp
, buf
, -1);
10412 } else if (option
== OPT_OBJECTS
) {
10413 Jim_Obj
*objPtr
, *listObjPtr
, *subListObjPtr
;
10414 /* Count the number of live objects. */
10415 objPtr
= interp
->liveList
;
10416 listObjPtr
= Jim_NewListObj(interp
, NULL
, 0);
10419 const char *type
= objPtr
->typePtr
?
10420 objPtr
->typePtr
->name
: "";
10421 subListObjPtr
= Jim_NewListObj(interp
, NULL
, 0);
10422 sprintf(buf
, "%p", objPtr
);
10423 Jim_ListAppendElement(interp
, subListObjPtr
,
10424 Jim_NewStringObj(interp
, buf
, -1));
10425 Jim_ListAppendElement(interp
, subListObjPtr
,
10426 Jim_NewStringObj(interp
, type
, -1));
10427 Jim_ListAppendElement(interp
, subListObjPtr
,
10428 Jim_NewIntObj(interp
, objPtr
->refCount
));
10429 Jim_ListAppendElement(interp
, subListObjPtr
, objPtr
);
10430 Jim_ListAppendElement(interp
, listObjPtr
, subListObjPtr
);
10431 objPtr
= objPtr
->nextObjPtr
;
10433 Jim_SetResult(interp
, listObjPtr
);
10435 } else if (option
== OPT_INVSTR
) {
10439 Jim_WrongNumArgs(interp
, 2, argv
, "object");
10443 if (objPtr
->typePtr
!= NULL
)
10444 Jim_InvalidateStringRep(objPtr
);
10445 Jim_SetEmptyResult(interp
);
10447 } else if (option
== OPT_SCRIPTLEN
) {
10450 Jim_WrongNumArgs(interp
, 2, argv
, "script");
10453 script
= Jim_GetScript(interp
, argv
[2]);
10454 Jim_SetResult(interp
, Jim_NewIntObj(interp
, script
->len
));
10456 } else if (option
== OPT_EXPRLEN
) {
10457 ExprByteCode
*expr
;
10459 Jim_WrongNumArgs(interp
, 2, argv
, "expression");
10462 expr
= Jim_GetExpression(interp
, argv
[2]);
10465 Jim_SetResult(interp
, Jim_NewIntObj(interp
, expr
->len
));
10467 } else if (option
== OPT_EXPRBC
) {
10469 ExprByteCode
*expr
;
10473 Jim_WrongNumArgs(interp
, 2, argv
, "expression");
10476 expr
= Jim_GetExpression(interp
, argv
[2]);
10479 objPtr
= Jim_NewListObj(interp
, NULL
, 0);
10480 for (i
= 0; i
< expr
->len
; i
++) {
10482 Jim_ExprOperator
*op
;
10484 switch(expr
->opcode
[i
]) {
10485 case JIM_EXPROP_NUMBER
: type
= "number"; break;
10486 case JIM_EXPROP_COMMAND
: type
= "command"; break;
10487 case JIM_EXPROP_VARIABLE
: type
= "variable"; break;
10488 case JIM_EXPROP_DICTSUGAR
: type
= "dictsugar"; break;
10489 case JIM_EXPROP_SUBST
: type
= "subst"; break;
10490 case JIM_EXPROP_STRING
: type
= "string"; break;
10492 op
= JimExprOperatorInfo(Jim_GetString(expr
->obj
[i
], NULL
));
10500 Jim_ListAppendElement(interp
, objPtr
,
10501 Jim_NewStringObj(interp
, type
, -1));
10502 Jim_ListAppendElement(interp
, objPtr
, expr
->obj
[i
]);
10504 Jim_SetResult(interp
, objPtr
);
10507 Jim_SetResultString(interp
,
10508 "bad option. Valid options are refcount, "
10509 "objcount, objects, invstr", -1);
10512 return JIM_OK
; /* unreached */
10516 static int Jim_EvalCoreCommand(Jim_Interp
*interp
, int argc
,
10517 Jim_Obj
*const *argv
)
10520 return Jim_EvalObj(interp
, argv
[1]);
10521 } else if (argc
> 2) {
10525 objPtr
= Jim_ConcatObj(interp
, argc
-1, argv
+1);
10526 Jim_IncrRefCount(objPtr
);
10527 retcode
= Jim_EvalObj(interp
, objPtr
);
10528 Jim_DecrRefCount(interp
, objPtr
);
10531 Jim_WrongNumArgs(interp
, 1, argv
, "script ?...?");
10537 static int Jim_UplevelCoreCommand(Jim_Interp
*interp
, int argc
,
10538 Jim_Obj
*const *argv
)
10541 int retcode
, newLevel
, oldLevel
;
10542 Jim_CallFrame
*savedCallFrame
, *targetCallFrame
;
10546 /* Save the old callframe pointer */
10547 savedCallFrame
= interp
->framePtr
;
10549 /* Lookup the target frame pointer */
10550 str
= Jim_GetString(argv
[1], NULL
);
10551 if ((str
[0] >= '0' && str
[0] <= '9') || str
[0] == '#')
10553 if (Jim_GetCallFrameByLevel(interp
, argv
[1],
10555 &newLevel
) != JIM_OK
)
10560 if (Jim_GetCallFrameByLevel(interp
, NULL
,
10562 &newLevel
) != JIM_OK
)
10568 Jim_WrongNumArgs(interp
, 1, argv
,
10569 "?level? command ?arg ...?");
10572 /* Eval the code in the target callframe. */
10573 interp
->framePtr
= targetCallFrame
;
10574 oldLevel
= interp
->numLevels
;
10575 interp
->numLevels
= newLevel
;
10577 retcode
= Jim_EvalObj(interp
, argv
[1]);
10579 objPtr
= Jim_ConcatObj(interp
, argc
-1, argv
+1);
10580 Jim_IncrRefCount(objPtr
);
10581 retcode
= Jim_EvalObj(interp
, objPtr
);
10582 Jim_DecrRefCount(interp
, objPtr
);
10584 interp
->numLevels
= oldLevel
;
10585 interp
->framePtr
= savedCallFrame
;
10588 Jim_WrongNumArgs(interp
, 1, argv
, "?level? command ?arg ...?");
10594 static int Jim_ExprCoreCommand(Jim_Interp
*interp
, int argc
,
10595 Jim_Obj
*const *argv
)
10597 Jim_Obj
*exprResultPtr
;
10601 retcode
= Jim_EvalExpression(interp
, argv
[1], &exprResultPtr
);
10602 } else if (argc
> 2) {
10605 objPtr
= Jim_ConcatObj(interp
, argc
-1, argv
+1);
10606 Jim_IncrRefCount(objPtr
);
10607 retcode
= Jim_EvalExpression(interp
, objPtr
, &exprResultPtr
);
10608 Jim_DecrRefCount(interp
, objPtr
);
10610 Jim_WrongNumArgs(interp
, 1, argv
, "expression ?...?");
10613 if (retcode
!= JIM_OK
) return retcode
;
10614 Jim_SetResult(interp
, exprResultPtr
);
10615 Jim_DecrRefCount(interp
, exprResultPtr
);
10620 static int Jim_BreakCoreCommand(Jim_Interp
*interp
, int argc
,
10621 Jim_Obj
*const *argv
)
10624 Jim_WrongNumArgs(interp
, 1, argv
, "");
10631 static int Jim_ContinueCoreCommand(Jim_Interp
*interp
, int argc
,
10632 Jim_Obj
*const *argv
)
10635 Jim_WrongNumArgs(interp
, 1, argv
, "");
10638 return JIM_CONTINUE
;
10642 static int Jim_ReturnCoreCommand(Jim_Interp
*interp
, int argc
,
10643 Jim_Obj
*const *argv
)
10647 } else if (argc
== 2) {
10648 Jim_SetResult(interp
, argv
[1]);
10649 interp
->returnCode
= JIM_OK
;
10651 } else if (argc
== 3 || argc
== 4) {
10653 if (Jim_GetReturnCode(interp
, argv
[2], &returnCode
) == JIM_ERR
)
10655 interp
->returnCode
= returnCode
;
10657 Jim_SetResult(interp
, argv
[3]);
10660 Jim_WrongNumArgs(interp
, 1, argv
, "?-code code? ?result?");
10663 return JIM_RETURN
; /* unreached */
10667 static int Jim_TailcallCoreCommand(Jim_Interp
*interp
, int argc
,
10668 Jim_Obj
*const *argv
)
10672 objPtr
= Jim_NewListObj(interp
, argv
+1, argc
-1);
10673 Jim_SetResult(interp
, objPtr
);
10678 static int Jim_ProcCoreCommand(Jim_Interp
*interp
, int argc
,
10679 Jim_Obj
*const *argv
)
10682 int arityMin
, arityMax
;
10684 if (argc
!= 4 && argc
!= 5) {
10685 Jim_WrongNumArgs(interp
, 1, argv
, "name arglist ?statics? body");
10688 Jim_ListLength(interp
, argv
[2], &argListLen
);
10689 arityMin
= arityMax
= argListLen
+1;
10693 Jim_Obj
*lastArgPtr
;
10695 Jim_ListIndex(interp
, argv
[2], argListLen
-1, &lastArgPtr
, JIM_NONE
);
10696 str
= Jim_GetString(lastArgPtr
, &len
);
10697 if (len
== 4 && memcmp(str
, "args", 4) == 0) {
10703 return Jim_CreateProcedure(interp
, Jim_GetString(argv
[1], NULL
),
10704 argv
[2], NULL
, argv
[3], arityMin
, arityMax
);
10706 return Jim_CreateProcedure(interp
, Jim_GetString(argv
[1], NULL
),
10707 argv
[2], argv
[3], argv
[4], arityMin
, arityMax
);
10712 static int Jim_ConcatCoreCommand(Jim_Interp
*interp
, int argc
,
10713 Jim_Obj
*const *argv
)
10715 Jim_SetResult(interp
, Jim_ConcatObj(interp
, argc
-1, argv
+1));
10720 static int Jim_UpvarCoreCommand(Jim_Interp
*interp
, int argc
,
10721 Jim_Obj
*const *argv
)
10725 Jim_CallFrame
*targetCallFrame
;
10727 /* Lookup the target frame pointer */
10728 str
= Jim_GetString(argv
[1], NULL
);
10730 ((str
[0] >= '0' && str
[0] <= '9') || str
[0] == '#'))
10732 if (Jim_GetCallFrameByLevel(interp
, argv
[1],
10733 &targetCallFrame
, NULL
) != JIM_OK
)
10738 if (Jim_GetCallFrameByLevel(interp
, NULL
,
10739 &targetCallFrame
, NULL
) != JIM_OK
)
10742 /* Check for arity */
10743 if (argc
< 3 || ((argc
-1)%2) != 0) {
10744 Jim_WrongNumArgs(interp
, 1, argv
, "?level? otherVar localVar ?otherVar localVar ...?");
10747 /* Now... for every other/local couple: */
10748 for (i
= 1; i
< argc
; i
+= 2) {
10749 if (Jim_SetVariableLink(interp
, argv
[i
+1], argv
[i
],
10750 targetCallFrame
) != JIM_OK
) return JIM_ERR
;
10756 static int Jim_GlobalCoreCommand(Jim_Interp
*interp
, int argc
,
10757 Jim_Obj
*const *argv
)
10762 Jim_WrongNumArgs(interp
, 1, argv
, "varName ?varName ...?");
10765 /* Link every var to the toplevel having the same name */
10766 if (interp
->numLevels
== 0) return JIM_OK
; /* global at toplevel... */
10767 for (i
= 1; i
< argc
; i
++) {
10768 if (Jim_SetVariableLink(interp
, argv
[i
], argv
[i
],
10769 interp
->topFramePtr
) != JIM_OK
) return JIM_ERR
;
10774 /* does the [string map] operation. On error NULL is returned,
10775 * otherwise a new string object with the result, having refcount = 0,
10777 static Jim_Obj
*JimStringMap(Jim_Interp
*interp
, Jim_Obj
*mapListObjPtr
,
10778 Jim_Obj
*objPtr
, int nocase
)
10781 const char **key
, *str
, *noMatchStart
= NULL
;
10783 int *keyLen
, strLen
, i
;
10784 Jim_Obj
*resultObjPtr
;
10786 Jim_ListLength(interp
, mapListObjPtr
, &numMaps
);
10788 Jim_SetResultString(interp
,
10789 "list must contain an even number of elements", -1);
10792 /* Initialization */
10794 key
= Jim_Alloc(sizeof(char*)*numMaps
);
10795 keyLen
= Jim_Alloc(sizeof(int)*numMaps
);
10796 value
= Jim_Alloc(sizeof(Jim_Obj
*)*numMaps
);
10797 resultObjPtr
= Jim_NewStringObj(interp
, "", 0);
10798 for (i
= 0; i
< numMaps
; i
++) {
10799 Jim_Obj
*eleObjPtr
;
10801 Jim_ListIndex(interp
, mapListObjPtr
, i
*2, &eleObjPtr
, JIM_NONE
);
10802 key
[i
] = Jim_GetString(eleObjPtr
, &keyLen
[i
]);
10803 Jim_ListIndex(interp
, mapListObjPtr
, i
*2+1, &eleObjPtr
, JIM_NONE
);
10804 value
[i
] = eleObjPtr
;
10806 str
= Jim_GetString(objPtr
, &strLen
);
10809 for (i
= 0; i
< numMaps
; i
++) {
10810 if (strLen
>= keyLen
[i
] && keyLen
[i
]) {
10811 if (!JimStringCompare(str
, keyLen
[i
], key
[i
], keyLen
[i
],
10814 if (noMatchStart
) {
10815 Jim_AppendString(interp
, resultObjPtr
,
10816 noMatchStart
, str
-noMatchStart
);
10817 noMatchStart
= NULL
;
10819 Jim_AppendObj(interp
, resultObjPtr
, value
[i
]);
10821 strLen
-= keyLen
[i
];
10826 if (i
== numMaps
) { /* no match */
10827 if (noMatchStart
== NULL
)
10828 noMatchStart
= str
;
10833 if (noMatchStart
) {
10834 Jim_AppendString(interp
, resultObjPtr
,
10835 noMatchStart
, str
-noMatchStart
);
10837 Jim_Free((void*)key
);
10840 return resultObjPtr
;
10844 static int Jim_StringCoreCommand(Jim_Interp
*interp
, int argc
,
10845 Jim_Obj
*const *argv
)
10848 const char *options
[] = {
10849 "length", "compare", "match", "equal", "range", "map", "repeat",
10850 "index", "first", "tolower", "toupper", NULL
10853 OPT_LENGTH
, OPT_COMPARE
, OPT_MATCH
, OPT_EQUAL
, OPT_RANGE
,
10854 OPT_MAP
, OPT_REPEAT
, OPT_INDEX
, OPT_FIRST
, OPT_TOLOWER
, OPT_TOUPPER
10858 Jim_WrongNumArgs(interp
, 1, argv
, "option ?arguments ...?");
10861 if (Jim_GetEnum(interp
, argv
[1], options
, &option
, "option",
10862 JIM_ERRMSG
) != JIM_OK
)
10865 if (option
== OPT_LENGTH
) {
10869 Jim_WrongNumArgs(interp
, 2, argv
, "string");
10872 Jim_GetString(argv
[2], &len
);
10873 Jim_SetResult(interp
, Jim_NewIntObj(interp
, len
));
10875 } else if (option
== OPT_COMPARE
) {
10877 if ((argc
!= 4 && argc
!= 5) ||
10878 (argc
== 5 && Jim_CompareStringImmediate(interp
,
10879 argv
[2], "-nocase") == 0)) {
10880 Jim_WrongNumArgs(interp
, 2, argv
, "string1 string2");
10887 Jim_SetResult(interp
, Jim_NewIntObj(interp
,
10888 Jim_StringCompareObj(argv
[2],
10889 argv
[3], nocase
)));
10891 } else if (option
== OPT_MATCH
) {
10893 if ((argc
!= 4 && argc
!= 5) ||
10894 (argc
== 5 && Jim_CompareStringImmediate(interp
,
10895 argv
[2], "-nocase") == 0)) {
10896 Jim_WrongNumArgs(interp
, 2, argv
, "?-nocase? pattern "
10904 Jim_SetResult(interp
,
10905 Jim_NewIntObj(interp
, Jim_StringMatchObj(argv
[2],
10906 argv
[3], nocase
)));
10908 } else if (option
== OPT_EQUAL
) {
10910 Jim_WrongNumArgs(interp
, 2, argv
, "string1 string2");
10913 Jim_SetResult(interp
,
10914 Jim_NewIntObj(interp
, Jim_StringEqObj(argv
[2],
10917 } else if (option
== OPT_RANGE
) {
10921 Jim_WrongNumArgs(interp
, 2, argv
, "string first last");
10924 objPtr
= Jim_StringRangeObj(interp
, argv
[2], argv
[3], argv
[4]);
10925 if (objPtr
== NULL
)
10927 Jim_SetResult(interp
, objPtr
);
10929 } else if (option
== OPT_MAP
) {
10933 if ((argc
!= 4 && argc
!= 5) ||
10934 (argc
== 5 && Jim_CompareStringImmediate(interp
,
10935 argv
[2], "-nocase") == 0)) {
10936 Jim_WrongNumArgs(interp
, 2, argv
, "?-nocase? mapList "
10944 objPtr
= JimStringMap(interp
, argv
[2], argv
[3], nocase
);
10945 if (objPtr
== NULL
)
10947 Jim_SetResult(interp
, objPtr
);
10949 } else if (option
== OPT_REPEAT
) {
10954 Jim_WrongNumArgs(interp
, 2, argv
, "string count");
10957 if (Jim_GetWide(interp
, argv
[3], &count
) != JIM_OK
)
10959 objPtr
= Jim_NewStringObj(interp
, "", 0);
10961 Jim_AppendObj(interp
, objPtr
, argv
[2]);
10963 Jim_SetResult(interp
, objPtr
);
10965 } else if (option
== OPT_INDEX
) {
10970 Jim_WrongNumArgs(interp
, 2, argv
, "string index");
10973 if (Jim_GetIndex(interp
, argv
[3], &index
) != JIM_OK
)
10975 str
= Jim_GetString(argv
[2], &len
);
10976 if (index
!= INT_MIN
&& index
!= INT_MAX
)
10977 index
= JimRelToAbsIndex(len
, index
);
10978 if (index
< 0 || index
>= len
) {
10979 Jim_SetResult(interp
, Jim_NewEmptyStringObj(interp
));
10982 Jim_SetResult(interp
, Jim_NewStringObj(interp
, str
+index
, 1));
10985 } else if (option
== OPT_FIRST
) {
10986 int index
= 0, l1
, l2
;
10987 const char *s1
, *s2
;
10989 if (argc
!= 4 && argc
!= 5) {
10990 Jim_WrongNumArgs(interp
, 2, argv
, "subString string ?startIndex?");
10993 s1
= Jim_GetString(argv
[2], &l1
);
10994 s2
= Jim_GetString(argv
[3], &l2
);
10996 if (Jim_GetIndex(interp
, argv
[4], &index
) != JIM_OK
)
10998 index
= JimRelToAbsIndex(l2
, index
);
11000 Jim_SetResult(interp
, Jim_NewIntObj(interp
,
11001 JimStringFirst(s1
, l1
, s2
, l2
, index
)));
11003 } else if (option
== OPT_TOLOWER
) {
11005 Jim_WrongNumArgs(interp
, 2, argv
, "string");
11008 Jim_SetResult(interp
, JimStringToLower(interp
, argv
[2]));
11009 } else if (option
== OPT_TOUPPER
) {
11011 Jim_WrongNumArgs(interp
, 2, argv
, "string");
11014 Jim_SetResult(interp
, JimStringToUpper(interp
, argv
[2]));
11020 static int Jim_TimeCoreCommand(Jim_Interp
*interp
, int argc
,
11021 Jim_Obj
*const *argv
)
11024 jim_wide start
, elapsed
;
11026 const char *fmt
= "%" JIM_WIDE_MODIFIER
" microseconds per iteration";
11029 Jim_WrongNumArgs(interp
, 1, argv
, "script ?count?");
11033 if (Jim_GetLong(interp
, argv
[2], &count
) != JIM_OK
)
11039 start
= JimClock();
11043 if ((retval
= Jim_EvalObj(interp
, argv
[1])) != JIM_OK
)
11046 elapsed
= JimClock() - start
;
11047 sprintf(buf
, fmt
, elapsed
/count
);
11048 Jim_SetResultString(interp
, buf
, -1);
11053 static int Jim_ExitCoreCommand(Jim_Interp
*interp
, int argc
,
11054 Jim_Obj
*const *argv
)
11059 Jim_WrongNumArgs(interp
, 1, argv
, "?exitCode?");
11063 if (Jim_GetLong(interp
, argv
[1], &exitCode
) != JIM_OK
)
11066 interp
->exitCode
= exitCode
;
11071 static int Jim_CatchCoreCommand(Jim_Interp
*interp
, int argc
,
11072 Jim_Obj
*const *argv
)
11076 if (argc
!= 2 && argc
!= 3) {
11077 Jim_WrongNumArgs(interp
, 1, argv
, "script ?varName?");
11080 exitCode
= Jim_EvalObj(interp
, argv
[1]);
11082 if (Jim_SetVariable(interp
, argv
[2], Jim_GetResult(interp
))
11086 Jim_SetResult(interp
, Jim_NewIntObj(interp
, exitCode
));
11091 static int Jim_RefCoreCommand(Jim_Interp
*interp
, int argc
,
11092 Jim_Obj
*const *argv
)
11094 if (argc
!= 3 && argc
!= 4) {
11095 Jim_WrongNumArgs(interp
, 1, argv
, "string tag ?finalizer?");
11099 Jim_SetResult(interp
, Jim_NewReference(interp
, argv
[1], argv
[2], NULL
));
11101 Jim_SetResult(interp
, Jim_NewReference(interp
, argv
[1], argv
[2],
11108 static int Jim_GetrefCoreCommand(Jim_Interp
*interp
, int argc
,
11109 Jim_Obj
*const *argv
)
11111 Jim_Reference
*refPtr
;
11114 Jim_WrongNumArgs(interp
, 1, argv
, "reference");
11117 if ((refPtr
= Jim_GetReference(interp
, argv
[1])) == NULL
)
11119 Jim_SetResult(interp
, refPtr
->objPtr
);
11124 static int Jim_SetrefCoreCommand(Jim_Interp
*interp
, int argc
,
11125 Jim_Obj
*const *argv
)
11127 Jim_Reference
*refPtr
;
11130 Jim_WrongNumArgs(interp
, 1, argv
, "reference newValue");
11133 if ((refPtr
= Jim_GetReference(interp
, argv
[1])) == NULL
)
11135 Jim_IncrRefCount(argv
[2]);
11136 Jim_DecrRefCount(interp
, refPtr
->objPtr
);
11137 refPtr
->objPtr
= argv
[2];
11138 Jim_SetResult(interp
, argv
[2]);
11143 static int Jim_CollectCoreCommand(Jim_Interp
*interp
, int argc
,
11144 Jim_Obj
*const *argv
)
11147 Jim_WrongNumArgs(interp
, 1, argv
, "");
11150 Jim_SetResult(interp
, Jim_NewIntObj(interp
, Jim_Collect(interp
)));
11154 /* [finalize] reference ?newValue? */
11155 static int Jim_FinalizeCoreCommand(Jim_Interp
*interp
, int argc
,
11156 Jim_Obj
*const *argv
)
11158 if (argc
!= 2 && argc
!= 3) {
11159 Jim_WrongNumArgs(interp
, 1, argv
, "reference ?finalizerProc?");
11163 Jim_Obj
*cmdNamePtr
;
11165 if (Jim_GetFinalizer(interp
, argv
[1], &cmdNamePtr
) != JIM_OK
)
11167 if (cmdNamePtr
!= NULL
) /* otherwise the null string is returned. */
11168 Jim_SetResult(interp
, cmdNamePtr
);
11170 if (Jim_SetFinalizer(interp
, argv
[1], argv
[2]) != JIM_OK
)
11172 Jim_SetResult(interp
, argv
[2]);
11178 /* [info references] (list of all the references/finalizers) */
11181 static int Jim_RenameCoreCommand(Jim_Interp
*interp
, int argc
,
11182 Jim_Obj
*const *argv
)
11184 const char *oldName
, *newName
;
11187 Jim_WrongNumArgs(interp
, 1, argv
, "oldName newName");
11190 oldName
= Jim_GetString(argv
[1], NULL
);
11191 newName
= Jim_GetString(argv
[2], NULL
);
11192 if (Jim_RenameCommand(interp
, oldName
, newName
) != JIM_OK
) {
11193 Jim_SetResult(interp
, Jim_NewEmptyStringObj(interp
));
11194 Jim_AppendStrings(interp
, Jim_GetResult(interp
),
11195 "can't rename \"", oldName
, "\": ",
11196 "command doesn't exist", NULL
);
11203 static int Jim_DictCoreCommand(Jim_Interp
*interp
, int argc
,
11204 Jim_Obj
*const *argv
)
11207 const char *options
[] = {
11208 "create", "get", "set", "unset", "exists", NULL
11211 OPT_CREATE
, OPT_GET
, OPT_SET
, OPT_UNSET
, OPT_EXIST
11215 Jim_WrongNumArgs(interp
, 1, argv
, "option ?arguments ...?");
11219 if (Jim_GetEnum(interp
, argv
[1], options
, &option
, "option",
11220 JIM_ERRMSG
) != JIM_OK
)
11223 if (option
== OPT_CREATE
) {
11227 Jim_WrongNumArgs(interp
, 2, argv
, "?key value ...?");
11230 objPtr
= Jim_NewDictObj(interp
, argv
+2, argc
-2);
11231 Jim_SetResult(interp
, objPtr
);
11233 } else if (option
== OPT_GET
) {
11236 if (Jim_DictKeysVector(interp
, argv
[2], argv
+3, argc
-3, &objPtr
,
11237 JIM_ERRMSG
) != JIM_OK
)
11239 Jim_SetResult(interp
, objPtr
);
11241 } else if (option
== OPT_SET
) {
11243 Jim_WrongNumArgs(interp
, 2, argv
, "varName key ?key ...? value");
11246 return Jim_SetDictKeysVector(interp
, argv
[2], argv
+3, argc
-4,
11248 } else if (option
== OPT_UNSET
) {
11250 Jim_WrongNumArgs(interp
, 2, argv
, "varName key ?key ...?");
11253 return Jim_SetDictKeysVector(interp
, argv
[2], argv
+3, argc
-3,
11255 } else if (option
== OPT_EXIST
) {
11259 if (Jim_DictKeysVector(interp
, argv
[2], argv
+3, argc
-3, &objPtr
,
11260 JIM_ERRMSG
) == JIM_OK
)
11264 Jim_SetResult(interp
, Jim_NewIntObj(interp
, exists
));
11267 Jim_SetResult(interp
, Jim_NewEmptyStringObj(interp
));
11268 Jim_AppendStrings(interp
, Jim_GetResult(interp
),
11269 "bad option \"", Jim_GetString(argv
[1], NULL
), "\":",
11270 " must be create, get, set", NULL
);
11277 static int Jim_LoadCoreCommand(Jim_Interp
*interp
, int argc
,
11278 Jim_Obj
*const *argv
)
11281 Jim_WrongNumArgs(interp
, 1, argv
, "libaryFile");
11284 return Jim_LoadLibrary(interp
, Jim_GetString(argv
[1], NULL
));
11288 static int Jim_SubstCoreCommand(Jim_Interp
*interp
, int argc
,
11289 Jim_Obj
*const *argv
)
11295 Jim_WrongNumArgs(interp
, 1, argv
,
11296 "?-nobackslashes? ?-nocommands? ?-novariables? string");
11301 if (Jim_CompareStringImmediate(interp
, argv
[i
+1],
11303 flags
|= JIM_SUBST_NOESC
;
11304 else if (Jim_CompareStringImmediate(interp
, argv
[i
+1],
11306 flags
|= JIM_SUBST_NOVAR
;
11307 else if (Jim_CompareStringImmediate(interp
, argv
[i
+1],
11309 flags
|= JIM_SUBST_NOCMD
;
11311 Jim_SetResult(interp
, Jim_NewEmptyStringObj(interp
));
11312 Jim_AppendStrings(interp
, Jim_GetResult(interp
),
11313 "bad option \"", Jim_GetString(argv
[i
+1], NULL
),
11314 "\": must be -nobackslashes, -nocommands, or "
11315 "-novariables", NULL
);
11319 if (Jim_SubstObj(interp
, argv
[argc
-1], &objPtr
, flags
) != JIM_OK
)
11321 Jim_SetResult(interp
, objPtr
);
11326 static int Jim_InfoCoreCommand(Jim_Interp
*interp
, int argc
,
11327 Jim_Obj
*const *argv
)
11329 int cmd
, result
= JIM_OK
;
11330 static const char *commands
[] = {
11331 "body", "commands", "exists", "globals", "level", "locals",
11332 "vars", "version", "complete", "args", NULL
11334 enum {INFO_BODY
, INFO_COMMANDS
, INFO_EXISTS
, INFO_GLOBALS
, INFO_LEVEL
,
11335 INFO_LOCALS
, INFO_VARS
, INFO_VERSION
, INFO_COMPLETE
, INFO_ARGS
};
11338 Jim_WrongNumArgs(interp
, 1, argv
, "command ?args ...?");
11341 if (Jim_GetEnum(interp
, argv
[1], commands
, &cmd
, "command", JIM_ERRMSG
)
11346 if (cmd
== INFO_COMMANDS
) {
11347 if (argc
!= 2 && argc
!= 3) {
11348 Jim_WrongNumArgs(interp
, 2, argv
, "?pattern?");
11352 Jim_SetResult(interp
,JimCommandsList(interp
, argv
[2]));
11354 Jim_SetResult(interp
, JimCommandsList(interp
, NULL
));
11355 } else if (cmd
== INFO_EXISTS
) {
11358 Jim_WrongNumArgs(interp
, 2, argv
, "varName");
11361 exists
= Jim_GetVariable(interp
, argv
[2], 0);
11362 Jim_SetResult(interp
, Jim_NewIntObj(interp
, exists
!= 0));
11363 } else if (cmd
== INFO_GLOBALS
|| cmd
== INFO_LOCALS
|| cmd
== INFO_VARS
) {
11366 case INFO_GLOBALS
: mode
= JIM_VARLIST_GLOBALS
; break;
11367 case INFO_LOCALS
: mode
= JIM_VARLIST_LOCALS
; break;
11368 case INFO_VARS
: mode
= JIM_VARLIST_VARS
; break;
11369 default: mode
= 0; /* avoid warning */; break;
11371 if (argc
!= 2 && argc
!= 3) {
11372 Jim_WrongNumArgs(interp
, 2, argv
, "?pattern?");
11376 Jim_SetResult(interp
,JimVariablesList(interp
, argv
[2], mode
));
11378 Jim_SetResult(interp
, JimVariablesList(interp
, NULL
, mode
));
11379 } else if (cmd
== INFO_LEVEL
) {
11383 Jim_SetResult(interp
,
11384 Jim_NewIntObj(interp
, interp
->numLevels
));
11387 if (JimInfoLevel(interp
, argv
[2], &objPtr
) != JIM_OK
)
11389 Jim_SetResult(interp
, objPtr
);
11392 Jim_WrongNumArgs(interp
, 2, argv
, "?levelNum?");
11395 } else if (cmd
== INFO_BODY
|| cmd
== INFO_ARGS
) {
11399 Jim_WrongNumArgs(interp
, 2, argv
, "procname");
11402 if ((cmdPtr
= Jim_GetCommand(interp
, argv
[2], JIM_ERRMSG
)) == NULL
)
11404 if (cmdPtr
->cmdProc
!= NULL
) {
11405 Jim_SetResult(interp
, Jim_NewEmptyStringObj(interp
));
11406 Jim_AppendStrings(interp
, Jim_GetResult(interp
),
11407 "command \"", Jim_GetString(argv
[2], NULL
),
11408 "\" is not a procedure", NULL
);
11411 if (cmd
== INFO_BODY
)
11412 Jim_SetResult(interp
, cmdPtr
->bodyObjPtr
);
11414 Jim_SetResult(interp
, cmdPtr
->argListObjPtr
);
11415 } else if (cmd
== INFO_VERSION
) {
11416 char buf
[(JIM_INTEGER_SPACE
* 2) + 1];
11417 sprintf(buf
, "%d.%d",
11418 JIM_VERSION
/ 100, JIM_VERSION
% 100);
11419 Jim_SetResultString(interp
, buf
, -1);
11420 } else if (cmd
== INFO_COMPLETE
) {
11425 Jim_WrongNumArgs(interp
, 2, argv
, "script");
11428 s
= Jim_GetString(argv
[2], &len
);
11429 Jim_SetResult(interp
,
11430 Jim_NewIntObj(interp
, Jim_ScriptIsComplete(s
, len
, NULL
)));
11436 static int Jim_SplitCoreCommand(Jim_Interp
*interp
, int argc
,
11437 Jim_Obj
*const *argv
)
11439 const char *str
, *splitChars
, *noMatchStart
;
11440 int splitLen
, strLen
, i
;
11441 Jim_Obj
*resObjPtr
;
11443 if (argc
!= 2 && argc
!= 3) {
11444 Jim_WrongNumArgs(interp
, 1, argv
, "string ?splitChars?");
11449 splitChars
= " \n\t\r";
11452 splitChars
= Jim_GetString(argv
[2], &splitLen
);
11454 str
= Jim_GetString(argv
[1], &strLen
);
11455 if (!strLen
) return JIM_OK
;
11456 noMatchStart
= str
;
11457 resObjPtr
= Jim_NewListObj(interp
, NULL
, 0);
11461 for (i
= 0; i
< splitLen
; i
++) {
11462 if (*str
== splitChars
[i
]) {
11465 objPtr
= Jim_NewStringObj(interp
, noMatchStart
,
11466 (str
-noMatchStart
));
11467 Jim_ListAppendElement(interp
, resObjPtr
, objPtr
);
11468 noMatchStart
= str
+1;
11475 Jim_ListAppendElement(interp
, resObjPtr
,
11476 Jim_NewStringObj(interp
, noMatchStart
, (str
-noMatchStart
)));
11478 /* This handles the special case of splitchars eq {}. This
11479 * is trivial but we want to perform object sharing as Tcl does. */
11480 Jim_Obj
*objCache
[256];
11481 const unsigned char *u
= (unsigned char*) str
;
11482 memset(objCache
, 0, sizeof(objCache
));
11483 for (i
= 0; i
< strLen
; i
++) {
11486 if (objCache
[c
] == NULL
)
11487 objCache
[c
] = Jim_NewStringObj(interp
, (char*)u
+i
, 1);
11488 Jim_ListAppendElement(interp
, resObjPtr
, objCache
[c
]);
11491 Jim_SetResult(interp
, resObjPtr
);
11496 static int Jim_JoinCoreCommand(Jim_Interp
*interp
, int argc
,
11497 Jim_Obj
*const *argv
)
11499 const char *joinStr
;
11500 int joinStrLen
, i
, listLen
;
11501 Jim_Obj
*resObjPtr
;
11503 if (argc
!= 2 && argc
!= 3) {
11504 Jim_WrongNumArgs(interp
, 1, argv
, "list ?joinString?");
11512 joinStr
= Jim_GetString(argv
[2], &joinStrLen
);
11514 Jim_ListLength(interp
, argv
[1], &listLen
);
11515 resObjPtr
= Jim_NewStringObj(interp
, NULL
, 0);
11517 for (i
= 0; i
< listLen
; i
++) {
11520 Jim_ListIndex(interp
, argv
[1], i
, &objPtr
, JIM_NONE
);
11521 Jim_AppendObj(interp
, resObjPtr
, objPtr
);
11522 if (i
+1 != listLen
) {
11523 Jim_AppendString(interp
, resObjPtr
, joinStr
, joinStrLen
);
11526 Jim_SetResult(interp
, resObjPtr
);
11531 static int Jim_FormatCoreCommand(Jim_Interp
*interp
, int argc
,
11532 Jim_Obj
*const *argv
)
11537 Jim_WrongNumArgs(interp
, 1, argv
, "formatString ?arg arg ...?");
11540 objPtr
= Jim_FormatString(interp
, argv
[1], argc
-2, argv
+2);
11541 if (objPtr
== NULL
)
11543 Jim_SetResult(interp
, objPtr
);
11548 static int Jim_ScanCoreCommand(Jim_Interp
*interp
, int argc
,
11549 Jim_Obj
*const *argv
)
11551 Jim_Obj
*listPtr
, **outVec
;
11552 int outc
, i
, count
= 0;
11555 Jim_WrongNumArgs(interp
, 1, argv
, "string formatString ?varName ...?");
11558 if (argv
[2]->typePtr
!= &scanFmtStringObjType
)
11559 SetScanFmtFromAny(interp
, argv
[2]);
11560 if (FormatGetError(argv
[2]) != 0) {
11561 Jim_SetResultString(interp
, FormatGetError(argv
[2]), -1);
11565 int maxPos
= FormatGetMaxPos(argv
[2]);
11566 int count
= FormatGetCnvCount(argv
[2]);
11567 if (maxPos
> argc
-3) {
11568 Jim_SetResultString(interp
, "\"%n$\" argument index out of range", -1);
11570 } else if (count
!= 0 && count
< argc
-3) {
11571 Jim_SetResultString(interp
, "variable is not assigned by any "
11572 "conversion specifiers", -1);
11574 } else if (count
> argc
-3) {
11575 Jim_SetResultString(interp
, "different numbers of variable names and "
11576 "field specifiers", -1);
11580 listPtr
= Jim_ScanString(interp
, argv
[1], argv
[2], JIM_ERRMSG
);
11585 if (listPtr
!= 0 && listPtr
!= (Jim_Obj
*)EOF
)
11586 Jim_ListLength(interp
, listPtr
, &len
);
11587 if (listPtr
== (Jim_Obj
*)EOF
|| len
== 0) { // XXX
11588 Jim_SetResult(interp
, Jim_NewIntObj(interp
, -1));
11591 JimListGetElements(interp
, listPtr
, &outc
, &outVec
);
11592 for (i
= 0; i
< outc
; ++i
) {
11593 if (Jim_Length(outVec
[i
]) > 0) {
11595 if (Jim_SetVariable(interp
, argv
[3+i
], outVec
[i
]) != JIM_OK
)
11599 Jim_FreeNewObj(interp
, listPtr
);
11600 Jim_SetResult(interp
, Jim_NewIntObj(interp
, count
));
11602 if (listPtr
== (Jim_Obj
*)EOF
) {
11603 Jim_SetResult(interp
, Jim_NewListObj(interp
, 0, 0));
11606 Jim_SetResult(interp
, listPtr
);
11610 Jim_FreeNewObj(interp
, listPtr
);
11615 static int Jim_ErrorCoreCommand(Jim_Interp
*interp
, int argc
,
11616 Jim_Obj
*const *argv
)
11619 Jim_WrongNumArgs(interp
, 1, argv
, "message");
11622 Jim_SetResult(interp
, argv
[1]);
11627 static int Jim_LrangeCoreCommand(Jim_Interp
*interp
, int argc
,
11628 Jim_Obj
*const *argv
)
11633 Jim_WrongNumArgs(interp
, 1, argv
, "list first last");
11636 if ((objPtr
= Jim_ListRange(interp
, argv
[1], argv
[2], argv
[3])) == NULL
)
11638 Jim_SetResult(interp
, objPtr
);
11643 static int Jim_EnvCoreCommand(Jim_Interp
*interp
, int argc
,
11644 Jim_Obj
*const *argv
)
11650 Jim_WrongNumArgs(interp
, 1, argv
, "varName");
11653 key
= Jim_GetString(argv
[1], NULL
);
11656 Jim_SetResult(interp
, Jim_NewEmptyStringObj(interp
));
11657 Jim_AppendStrings(interp
, Jim_GetResult(interp
),
11658 "environment variable \"",
11659 key
, "\" does not exist", NULL
);
11662 Jim_SetResult(interp
, Jim_NewStringObj(interp
, val
, -1));
11667 static int Jim_SourceCoreCommand(Jim_Interp
*interp
, int argc
,
11668 Jim_Obj
*const *argv
)
11673 Jim_WrongNumArgs(interp
, 1, argv
, "fileName");
11676 retval
= Jim_EvalFile(interp
, Jim_GetString(argv
[1], NULL
));
11677 if (retval
== JIM_RETURN
)
11683 static int Jim_LreverseCoreCommand(Jim_Interp
*interp
, int argc
,
11684 Jim_Obj
*const *argv
)
11686 Jim_Obj
*revObjPtr
, **ele
;
11690 Jim_WrongNumArgs(interp
, 1, argv
, "list");
11693 JimListGetElements(interp
, argv
[1], &len
, &ele
);
11695 revObjPtr
= Jim_NewListObj(interp
, NULL
, 0);
11697 ListAppendElement(revObjPtr
, ele
[len
--]);
11698 Jim_SetResult(interp
, revObjPtr
);
11702 static int JimRangeLen(jim_wide start
, jim_wide end
, jim_wide step
)
11706 if (step
== 0) return -1;
11707 if (start
== end
) return 0;
11708 else if (step
> 0 && start
> end
) return -1;
11709 else if (step
< 0 && end
> start
) return -1;
11711 if (len
< 0) len
= -len
; /* abs(len) */
11712 if (step
< 0) step
= -step
; /* abs(step) */
11713 len
= 1 + ((len
-1)/step
);
11714 /* We can truncate safely to INT_MAX, the range command
11715 * will always return an error for a such long range
11716 * because Tcl lists can't be so long. */
11717 if (len
> INT_MAX
) len
= INT_MAX
;
11718 return (int)((len
< 0) ? -1 : len
);
11722 static int Jim_RangeCoreCommand(Jim_Interp
*interp
, int argc
,
11723 Jim_Obj
*const *argv
)
11725 jim_wide start
= 0, end
, step
= 1;
11729 if (argc
< 2 || argc
> 4) {
11730 Jim_WrongNumArgs(interp
, 1, argv
, "?start? end ?step?");
11734 if (Jim_GetWide(interp
, argv
[1], &end
) != JIM_OK
)
11737 if (Jim_GetWide(interp
, argv
[1], &start
) != JIM_OK
||
11738 Jim_GetWide(interp
, argv
[2], &end
) != JIM_OK
)
11740 if (argc
== 4 && Jim_GetWide(interp
, argv
[3], &step
) != JIM_OK
)
11743 if ((len
= JimRangeLen(start
, end
, step
)) == -1) {
11744 Jim_SetResultString(interp
, "Invalid (infinite?) range specified", -1);
11747 objPtr
= Jim_NewListObj(interp
, NULL
, 0);
11748 for (i
= 0; i
< len
; i
++)
11749 ListAppendElement(objPtr
, Jim_NewIntObj(interp
, start
+i
*step
));
11750 Jim_SetResult(interp
, objPtr
);
11755 static int Jim_RandCoreCommand(Jim_Interp
*interp
, int argc
,
11756 Jim_Obj
*const *argv
)
11758 jim_wide min
= 0, max
, len
, maxMul
;
11760 if (argc
< 1 || argc
> 3) {
11761 Jim_WrongNumArgs(interp
, 1, argv
, "?min? max");
11765 max
= JIM_WIDE_MAX
;
11766 } else if (argc
== 2) {
11767 if (Jim_GetWide(interp
, argv
[1], &max
) != JIM_OK
)
11769 } else if (argc
== 3) {
11770 if (Jim_GetWide(interp
, argv
[1], &min
) != JIM_OK
||
11771 Jim_GetWide(interp
, argv
[2], &max
) != JIM_OK
)
11776 Jim_SetResultString(interp
, "Invalid arguments (max < min)", -1);
11779 maxMul
= JIM_WIDE_MAX
- (len
? (JIM_WIDE_MAX
%len
) : 0);
11783 JimRandomBytes(interp
, &r
, sizeof(jim_wide
));
11784 if (r
< 0 || r
>= maxMul
) continue;
11785 r
= (len
== 0) ? 0 : r
%len
;
11786 Jim_SetResult(interp
, Jim_NewIntObj(interp
, min
+r
));
11792 static int Jim_PackageCoreCommand(Jim_Interp
*interp
, int argc
,
11793 Jim_Obj
*const *argv
)
11796 const char *options
[] = {
11797 "require", "provide", NULL
11799 enum {OPT_REQUIRE
, OPT_PROVIDE
};
11802 Jim_WrongNumArgs(interp
, 1, argv
, "option ?arguments ...?");
11805 if (Jim_GetEnum(interp
, argv
[1], options
, &option
, "option",
11806 JIM_ERRMSG
) != JIM_OK
)
11809 if (option
== OPT_REQUIRE
) {
11813 if (Jim_CompareStringImmediate(interp
, argv
[2], "-exact")) {
11818 if (argc
!= 3 && argc
!= 4) {
11819 Jim_WrongNumArgs(interp
, 2, argv
, "?-exact? package ?version?");
11822 ver
= Jim_PackageRequire(interp
, Jim_GetString(argv
[2], NULL
),
11823 argc
== 4 ? Jim_GetString(argv
[3], NULL
) : "",
11827 Jim_SetResultString(interp
, ver
, -1);
11828 } else if (option
== OPT_PROVIDE
) {
11830 Jim_WrongNumArgs(interp
, 2, argv
, "package version");
11833 return Jim_PackageProvide(interp
, Jim_GetString(argv
[2], NULL
),
11834 Jim_GetString(argv
[3], NULL
), JIM_ERRMSG
);
11841 Jim_CmdProc cmdProc
;
11842 } Jim_CoreCommandsTable
[] = {
11843 {"set", Jim_SetCoreCommand
},
11844 {"unset", Jim_UnsetCoreCommand
},
11845 {"puts", Jim_PutsCoreCommand
},
11846 {"+", Jim_AddCoreCommand
},
11847 {"*", Jim_MulCoreCommand
},
11848 {"-", Jim_SubCoreCommand
},
11849 {"/", Jim_DivCoreCommand
},
11850 {"incr", Jim_IncrCoreCommand
},
11851 {"while", Jim_WhileCoreCommand
},
11852 {"for", Jim_ForCoreCommand
},
11853 {"foreach", Jim_ForeachCoreCommand
},
11854 {"lmap", Jim_LmapCoreCommand
},
11855 {"if", Jim_IfCoreCommand
},
11856 {"switch", Jim_SwitchCoreCommand
},
11857 {"list", Jim_ListCoreCommand
},
11858 {"lindex", Jim_LindexCoreCommand
},
11859 {"lset", Jim_LsetCoreCommand
},
11860 {"llength", Jim_LlengthCoreCommand
},
11861 {"lappend", Jim_LappendCoreCommand
},
11862 {"linsert", Jim_LinsertCoreCommand
},
11863 {"lsort", Jim_LsortCoreCommand
},
11864 {"append", Jim_AppendCoreCommand
},
11865 {"debug", Jim_DebugCoreCommand
},
11866 {"eval", Jim_EvalCoreCommand
},
11867 {"uplevel", Jim_UplevelCoreCommand
},
11868 {"expr", Jim_ExprCoreCommand
},
11869 {"break", Jim_BreakCoreCommand
},
11870 {"continue", Jim_ContinueCoreCommand
},
11871 {"proc", Jim_ProcCoreCommand
},
11872 {"concat", Jim_ConcatCoreCommand
},
11873 {"return", Jim_ReturnCoreCommand
},
11874 {"upvar", Jim_UpvarCoreCommand
},
11875 {"global", Jim_GlobalCoreCommand
},
11876 {"string", Jim_StringCoreCommand
},
11877 {"time", Jim_TimeCoreCommand
},
11878 {"exit", Jim_ExitCoreCommand
},
11879 {"catch", Jim_CatchCoreCommand
},
11880 {"ref", Jim_RefCoreCommand
},
11881 {"getref", Jim_GetrefCoreCommand
},
11882 {"setref", Jim_SetrefCoreCommand
},
11883 {"finalize", Jim_FinalizeCoreCommand
},
11884 {"collect", Jim_CollectCoreCommand
},
11885 {"rename", Jim_RenameCoreCommand
},
11886 {"dict", Jim_DictCoreCommand
},
11887 {"load", Jim_LoadCoreCommand
},
11888 {"subst", Jim_SubstCoreCommand
},
11889 {"info", Jim_InfoCoreCommand
},
11890 {"split", Jim_SplitCoreCommand
},
11891 {"join", Jim_JoinCoreCommand
},
11892 {"format", Jim_FormatCoreCommand
},
11893 {"scan", Jim_ScanCoreCommand
},
11894 {"error", Jim_ErrorCoreCommand
},
11895 {"lrange", Jim_LrangeCoreCommand
},
11896 {"env", Jim_EnvCoreCommand
},
11897 {"source", Jim_SourceCoreCommand
},
11898 {"lreverse", Jim_LreverseCoreCommand
},
11899 {"range", Jim_RangeCoreCommand
},
11900 {"rand", Jim_RandCoreCommand
},
11901 {"package", Jim_PackageCoreCommand
},
11902 {"tailcall", Jim_TailcallCoreCommand
},
11906 /* Some Jim core command is actually a procedure written in Jim itself. */
11907 static void Jim_RegisterCoreProcedures(Jim_Interp
*interp
)
11909 Jim_Eval(interp
, (char*)
11910 "proc lambda {arglist args} {\n"
11911 " set name [ref {} function lambdaFinalizer]\n"
11912 " uplevel 1 [list proc $name $arglist {expand}$args]\n"
11915 "proc lambdaFinalizer {name val} {\n"
11916 " rename $name {}\n"
11921 void Jim_RegisterCoreCommands(Jim_Interp
*interp
)
11925 while(Jim_CoreCommandsTable
[i
].name
!= NULL
) {
11926 Jim_CreateCommand(interp
,
11927 Jim_CoreCommandsTable
[i
].name
,
11928 Jim_CoreCommandsTable
[i
].cmdProc
,
11932 Jim_RegisterCoreProcedures(interp
);
11935 /* -----------------------------------------------------------------------------
11936 * Interactive prompt
11937 * ---------------------------------------------------------------------------*/
11938 void Jim_PrintErrorMessage(Jim_Interp
*interp
)
11942 Jim_fprintf(interp
, interp
->cookie_stderr
, "Runtime error, file \"%s\", line %d:" JIM_NL
,
11943 interp
->errorFileName
, interp
->errorLine
);
11944 Jim_fprintf(interp
,interp
->cookie_stderr
, " %s" JIM_NL
,
11945 Jim_GetString(interp
->result
, NULL
));
11946 Jim_ListLength(interp
, interp
->stackTrace
, &len
);
11947 for (i
= 0; i
< len
; i
+= 3) {
11949 const char *proc
, *file
, *line
;
11951 Jim_ListIndex(interp
, interp
->stackTrace
, i
, &objPtr
, JIM_NONE
);
11952 proc
= Jim_GetString(objPtr
, NULL
);
11953 Jim_ListIndex(interp
, interp
->stackTrace
, i
+1, &objPtr
,
11955 file
= Jim_GetString(objPtr
, NULL
);
11956 Jim_ListIndex(interp
, interp
->stackTrace
, i
+2, &objPtr
,
11958 line
= Jim_GetString(objPtr
, NULL
);
11959 Jim_fprintf( interp
, interp
->cookie_stderr
,
11960 "In procedure '%s' called at file \"%s\", line %s" JIM_NL
,
11965 int Jim_InteractivePrompt(Jim_Interp
*interp
)
11967 int retcode
= JIM_OK
;
11968 Jim_Obj
*scriptObjPtr
;
11970 Jim_fprintf(interp
,interp
->cookie_stdout
, "Welcome to Jim version %d.%d, "
11971 "Copyright (c) 2005-8 Salvatore Sanfilippo" JIM_NL
,
11972 JIM_VERSION
/ 100, JIM_VERSION
% 100);
11973 Jim_SetVariableStrWithStr(interp
, "jim_interactive", "1");
11976 const char *result
;
11977 const char *retcodestr
[] = {
11978 "ok", "error", "return", "break", "continue", "eval", "exit"
11982 if (retcode
!= 0) {
11983 if (retcode
>= 2 && retcode
<= 6)
11984 Jim_fprintf(interp
,interp
->cookie_stdout
, "[%s] . ", retcodestr
[retcode
]);
11986 Jim_fprintf(interp
,interp
->cookie_stdout
, "[%d] . ", retcode
);
11988 Jim_fprintf( interp
, interp
->cookie_stdout
, ". ");
11989 Jim_fflush( interp
, interp
->cookie_stdout
);
11990 scriptObjPtr
= Jim_NewStringObj(interp
, "", 0);
11991 Jim_IncrRefCount(scriptObjPtr
);
11997 if ( Jim_fgets(interp
, buf
, 1024, interp
->cookie_stdin
) == NULL
) {
11998 Jim_DecrRefCount(interp
, scriptObjPtr
);
12001 Jim_AppendString(interp
, scriptObjPtr
, buf
, -1);
12002 str
= Jim_GetString(scriptObjPtr
, &len
);
12003 if (Jim_ScriptIsComplete(str
, len
, &state
))
12005 Jim_fprintf( interp
, interp
->cookie_stdout
, "%c> ", state
);
12006 Jim_fflush( interp
, interp
->cookie_stdout
);
12008 retcode
= Jim_EvalObj(interp
, scriptObjPtr
);
12009 Jim_DecrRefCount(interp
, scriptObjPtr
);
12010 result
= Jim_GetString(Jim_GetResult(interp
), &reslen
);
12011 if (retcode
== JIM_ERR
) {
12012 Jim_PrintErrorMessage(interp
);
12013 } else if (retcode
== JIM_EXIT
) {
12014 exit(Jim_GetExitCode(interp
));
12017 Jim_fwrite( interp
, result
, 1, reslen
, interp
->cookie_stdout
);
12018 Jim_fprintf( interp
,interp
->cookie_stdout
, JIM_NL
);
12026 /* -----------------------------------------------------------------------------
12027 * Jim's idea of STDIO..
12028 * ---------------------------------------------------------------------------*/
12031 Jim_fprintf( Jim_Interp
*interp
, void *cookie
, const char *fmt
, ... )
12037 r
= Jim_vfprintf( interp
, cookie
, fmt
,ap
);
12044 Jim_vfprintf( Jim_Interp
*interp
, void *cookie
, const char *fmt
, va_list ap
)
12046 if( (interp
== NULL
) || (interp
->cb_vfprintf
== NULL
) ){
12050 return (*(interp
->cb_vfprintf
))( cookie
, fmt
, ap
);
12054 Jim_fwrite( Jim_Interp
*interp
, const void *ptr
, size_t size
, size_t n
, void *cookie
)
12056 if( (interp
== NULL
) || (interp
->cb_fwrite
== NULL
) ){
12060 return (*(interp
->cb_fwrite
))( ptr
, size
, n
, cookie
);
12064 Jim_fread( Jim_Interp
*interp
, void *ptr
, size_t size
, size_t n
, void *cookie
)
12066 if( (interp
== NULL
) || (interp
->cb_fread
== NULL
) ){
12070 return (*(interp
->cb_fread
))( ptr
, size
, n
, cookie
);
12074 Jim_fflush( Jim_Interp
*interp
, void *cookie
)
12076 if( (interp
== NULL
) || (interp
->cb_fflush
== NULL
) ){
12077 /* pretend all is well */
12080 return (*(interp
->cb_fflush
))( cookie
);
12084 Jim_fgets( Jim_Interp
*interp
, char *s
, int size
, void *cookie
)
12086 if( (interp
== NULL
) || (interp
->cb_fgets
== NULL
) ){
12090 return (*(interp
->cb_fgets
))( s
, size
, cookie
);
12099 * Local Variables: **
12101 * c-basic-offset: 4 **