#include <stdio.h>
#include <setjmp.h>
+#include <limits.h>
#include "lisp.h"
#include "character.h"
#define CCL_HEADER_EOF 1
#define CCL_HEADER_MAIN 2
-/* CCL code is a sequence of 28-bit non-negative integers (i.e. the
- MSB is always 0), each contains CCL command and/or arguments in the
- following format:
+/* CCL code is a sequence of 28-bit integers. Each contains a CCL
+ command and/or arguments in the following format:
|----------------- integer (28-bit) ------------------|
|------- 17-bit ------|- 3-bit --|- 3-bit --|- 5-bit -|
|------------- constant or other args ----------------|
cccccccccccccccccccccccccccc
- where, `cc...c' is a non-negative integer indicating constant value
- (the left most `c' is always 0) or an absolute jump address, `RRR'
+ where `cc...c' is a 17-bit, 20-bit, or 28-bit integer indicating a
+ constant value or a relative/absolute jump address, `RRR'
and `rrr' are CCL register number, `XXXXX' is one of the following
CCL commands. */
+#define CCL_CODE_MAX ((1 << (28 - 1)) - 1)
+#define CCL_CODE_MIN (-1 - CCL_CODE_MAX)
+
/* CCL commands
Each comment fields shows one or more lines for command syntax and
#endif
+/* Use "&" rather than "&&" to suppress a bogus GCC warning; see
+ <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43772>. */
+#define ASCENDING_ORDER(lo, med, hi) (((lo) <= (med)) & ((med) <= (hi)))
+
+#define GET_CCL_RANGE(var, ccl_prog, ic, lo, hi) \
+ do \
+ { \
+ EMACS_INT prog_word = XINT ((ccl_prog)[ic]); \
+ if (! ASCENDING_ORDER (lo, prog_word, hi)) \
+ CCL_INVALID_CMD; \
+ (var) = prog_word; \
+ } \
+ while (0)
+
+#define GET_CCL_CODE(code, ccl_prog, ic) \
+ GET_CCL_RANGE (code, ccl_prog, ic, CCL_CODE_MIN, CCL_CODE_MAX)
+
+#define GET_CCL_INT(var, ccl_prog, ic) \
+ GET_CCL_RANGE (var, ccl_prog, ic, INT_MIN, INT_MAX)
+
+#define IN_INT_RANGE(val) ASCENDING_ORDER (INT_MIN, val, INT_MAX)
+
/* Encode one character CH to multibyte form and write to the current
output buffer. If CH is less than 256, CH is written as is. */
#define CCL_WRITE_CHAR(ch) \
}
this_ic = ic;
- code = XINT (ccl_prog[ic]); ic++;
+ GET_CCL_CODE (code, ccl_prog, ic++);
field1 = code >> 8;
field2 = (code & 0xFF) >> 5;
break;
case CCL_SetConst: /* 00000000000000000000rrrXXXXX */
- reg[rrr] = XINT (ccl_prog[ic]);
- ic++;
+ GET_CCL_INT (reg[rrr], ccl_prog, ic++);
break;
case CCL_SetArray: /* CCCCCCCCCCCCCCCCCCCCRRRrrrXXXXX */
i = reg[RRR];
j = field1 >> 3;
- if ((unsigned int) i < j)
- reg[rrr] = XINT (ccl_prog[ic + i]);
+ if (0 <= i && i < j)
+ GET_CCL_INT (reg[rrr], ccl_prog, ic + i);
ic += j;
break;
break;
case CCL_WriteConstJump: /* A--D--D--R--E--S--S-000XXXXX */
- i = XINT (ccl_prog[ic]);
+ GET_CCL_INT (i, ccl_prog, ic);
CCL_WRITE_CHAR (i);
ic += ADDR;
break;
case CCL_WriteConstReadJump: /* A--D--D--R--E--S--S-rrrXXXXX */
- i = XINT (ccl_prog[ic]);
+ GET_CCL_INT (i, ccl_prog, ic);
CCL_WRITE_CHAR (i);
ic++;
CCL_READ_CHAR (reg[rrr]);
break;
case CCL_WriteStringJump: /* A--D--D--R--E--S--S-000XXXXX */
- j = XINT (ccl_prog[ic]);
- ic++;
+ GET_CCL_INT (j, ccl_prog, ic++);
CCL_WRITE_STRING (j);
ic += ADDR - 1;
break;
case CCL_WriteArrayReadJump: /* A--D--D--R--E--S--S-rrrXXXXX */
i = reg[rrr];
- j = XINT (ccl_prog[ic]);
- if ((unsigned int) i < j)
+ GET_CCL_INT (j, ccl_prog, ic);
+ if (0 <= i && i < j)
{
- i = XINT (ccl_prog[ic + 1 + i]);
+ GET_CCL_INT (i, ccl_prog, ic + 1 + i);
CCL_WRITE_CHAR (i);
}
ic += j + 2;
CCL_READ_CHAR (reg[rrr]);
/* fall through ... */
case CCL_Branch: /* CCCCCCCCCCCCCCCCCCCCrrrXXXXX */
- if ((unsigned int) reg[rrr] < field1)
- ic += XINT (ccl_prog[ic + reg[rrr]]);
- else
- ic += XINT (ccl_prog[ic + field1]);
+ {
+ int incr;
+ GET_CCL_INT (incr, ccl_prog,
+ ic + (0 <= reg[rrr] && reg[rrr] < field1
+ ? reg[rrr]
+ : field1));
+ ic += incr;
+ }
break;
case CCL_ReadRegister: /* CCCCCCCCCCCCCCCCCCCCrrXXXXX */
{
CCL_READ_CHAR (reg[rrr]);
if (!field1) break;
- code = XINT (ccl_prog[ic]); ic++;
+ GET_CCL_CODE (code, ccl_prog, ic++);
field1 = code >> 8;
field2 = (code & 0xFF) >> 5;
}
case CCL_WriteExprConst: /* 1:00000OPERATION000RRR000XXXXX */
rrr = 7;
i = reg[RRR];
- j = XINT (ccl_prog[ic]);
+ GET_CCL_INT (j, ccl_prog, ic);
op = field1 >> 6;
jump_address = ic + 1;
goto ccl_set_expr;
i = reg[rrr];
CCL_WRITE_CHAR (i);
if (!field1) break;
- code = XINT (ccl_prog[ic]); ic++;
+ GET_CCL_CODE (code, ccl_prog, ic++);
field1 = code >> 8;
field2 = (code & 0xFF) >> 5;
}
/* If FFF is nonzero, the CCL program ID is in the
following code. */
if (rrr)
- {
- prog_id = XINT (ccl_prog[ic]);
- ic++;
- }
+ GET_CCL_INT (prog_id, ccl_prog, ic++);
else
prog_id = field1;
case CCL_WriteArray: /* CCCCCCCCCCCCCCCCCCCCrrrXXXXX */
i = reg[rrr];
- if ((unsigned int) i < field1)
+ if (0 <= i && i < field1)
{
- j = XINT (ccl_prog[ic + i]);
+ GET_CCL_INT (j, ccl_prog, ic + i);
CCL_WRITE_CHAR (j);
}
ic += field1;
CCL_SUCCESS;
case CCL_ExprSelfConst: /* 00000OPERATION000000rrrXXXXX */
- i = XINT (ccl_prog[ic]);
- ic++;
+ GET_CCL_INT (i, ccl_prog, ic++);
op = field1 >> 6;
goto ccl_expr_self;
case CCL_SetExprConst: /* 00000OPERATION000RRRrrrXXXXX */
i = reg[RRR];
- j = XINT (ccl_prog[ic]);
+ GET_CCL_INT (j, ccl_prog, ic++);
op = field1 >> 6;
- jump_address = ++ic;
+ jump_address = ic;
goto ccl_set_expr;
case CCL_SetExprReg: /* 00000OPERATIONRrrRRRrrrXXXXX */
CCL_READ_CHAR (reg[rrr]);
case CCL_JumpCondExprConst: /* A--D--D--R--E--S--S-rrrXXXXX */
i = reg[rrr];
- op = XINT (ccl_prog[ic]);
- jump_address = ic++ + ADDR;
- j = XINT (ccl_prog[ic]);
- ic++;
+ jump_address = ic + ADDR;
+ GET_CCL_INT (op, ccl_prog, ic++);
+ GET_CCL_INT (j, ccl_prog, ic++);
rrr = 7;
goto ccl_set_expr;
CCL_READ_CHAR (reg[rrr]);
case CCL_JumpCondExprReg:
i = reg[rrr];
- op = XINT (ccl_prog[ic]);
- jump_address = ic++ + ADDR;
- j = reg[XINT (ccl_prog[ic])];
- ic++;
+ jump_address = ic + ADDR;
+ GET_CCL_INT (op, ccl_prog, ic++);
+ GET_CCL_RANGE (j, ccl_prog, ic++, 0, 7);
+ j = reg[j];
rrr = 7;
ccl_set_expr:
break;
case CCL_TranslateCharacterConstTbl:
- op = XINT (ccl_prog[ic]); /* table */
- ic++;
- i = CCL_DECODE_CHAR (reg[RRR], reg[rrr]);
- op = translate_char (GET_TRANSLATION_TABLE (op), i);
- CCL_ENCODE_CHAR (op, charset_list, reg[RRR], reg[rrr]);
+ {
+ EMACS_INT eop;
+ GET_CCL_RANGE (eop, ccl_prog, ic++, 0,
+ (VECTORP (Vtranslation_table_vector)
+ ? ASIZE (Vtranslation_table_vector)
+ : -1));
+ i = CCL_DECODE_CHAR (reg[RRR], reg[rrr]);
+ op = translate_char (GET_TRANSLATION_TABLE (eop), i);
+ CCL_ENCODE_CHAR (op, charset_list, reg[RRR], reg[rrr]);
+ }
break;
case CCL_LookupIntConstTbl:
- op = XINT (ccl_prog[ic]); /* table */
- ic++;
{
- struct Lisp_Hash_Table *h = GET_HASH_TABLE (op);
-
- op = hash_lookup (h, make_number (reg[RRR]), NULL);
- if (op >= 0)
+ ptrdiff_t eop;
+ struct Lisp_Hash_Table *h;
+ GET_CCL_RANGE (eop, ccl_prog, ic++, 0,
+ (VECTORP (Vtranslation_hash_table_vector)
+ ? ASIZE (Vtranslation_hash_table_vector)
+ : -1));
+ h = GET_HASH_TABLE (eop);
+
+ eop = hash_lookup (h, make_number (reg[RRR]), NULL);
+ if (eop >= 0)
{
Lisp_Object opl;
- opl = HASH_VALUE (h, op);
- if (! CHARACTERP (opl))
+ opl = HASH_VALUE (h, eop);
+ if (! (IN_INT_RANGE (eop) && CHARACTERP (opl)))
CCL_INVALID_CMD;
reg[RRR] = charset_unicode;
- reg[rrr] = op;
+ reg[rrr] = eop;
reg[7] = 1; /* r7 true for success */
}
else
break;
case CCL_LookupCharConstTbl:
- op = XINT (ccl_prog[ic]); /* table */
- ic++;
- i = CCL_DECODE_CHAR (reg[RRR], reg[rrr]);
{
- struct Lisp_Hash_Table *h = GET_HASH_TABLE (op);
-
- op = hash_lookup (h, make_number (i), NULL);
- if (op >= 0)
+ ptrdiff_t eop;
+ struct Lisp_Hash_Table *h;
+ GET_CCL_RANGE (eop, ccl_prog, ic++, 0,
+ (VECTORP (Vtranslation_hash_table_vector)
+ ? ASIZE (Vtranslation_hash_table_vector)
+ : -1));
+ i = CCL_DECODE_CHAR (reg[RRR], reg[rrr]);
+ h = GET_HASH_TABLE (eop);
+
+ eop = hash_lookup (h, make_number (i), NULL);
+ if (eop >= 0)
{
Lisp_Object opl;
- opl = HASH_VALUE (h, op);
- if (!INTEGERP (opl))
+ opl = HASH_VALUE (h, eop);
+ if (! (INTEGERP (opl) && IN_INT_RANGE (XINT (opl))))
CCL_INVALID_CMD;
reg[RRR] = XINT (opl);
reg[7] = 1; /* r7 true for success */
case CCL_IterateMultipleMap:
{
Lisp_Object map, content, attrib, value;
- int point, size, fin_ic;
+ EMACS_INT point, size;
+ int fin_ic;
- j = XINT (ccl_prog[ic++]); /* number of maps. */
+ GET_CCL_INT (j, ccl_prog, ic++); /* number of maps. */
fin_ic = ic + j;
op = reg[rrr];
if ((j > reg[RRR]) && (j >= 0))
size = ASIZE (Vcode_conversion_map_vector);
point = XINT (ccl_prog[ic++]);
- if (point >= size) continue;
+ if (! (0 <= point && point < size)) continue;
map = AREF (Vcode_conversion_map_vector, point);
/* Check map validity. */
/* check map type,
[STARTPOINT VAL1 VAL2 ...] or
[t ELEMENT STARTPOINT ENDPOINT] */
- if (NUMBERP (content))
+ if (INTEGERP (content))
{
- point = XUINT (content);
- point = op - point + 1;
- if (!((point >= 1) && (point < size))) continue;
- content = AREF (map, point);
+ point = XINT (content);
+ if (!(point <= op && op - point + 1 < size)) continue;
+ content = AREF (map, op - point + 1);
}
else if (EQ (content, Qt))
{
if (size != 4) continue;
- if ((op >= XUINT (AREF (map, 2)))
- && (op < XUINT (AREF (map, 3))))
+ if (INTEGERP (AREF (map, 2))
+ && XINT (AREF (map, 2)) <= op
+ && INTEGERP (AREF (map, 3))
+ && op < XINT (AREF (map, 3)))
content = AREF (map, 1);
else
continue;
if (NILP (content))
continue;
- else if (NUMBERP (content))
+ else if (INTEGERP (content) && IN_INT_RANGE (XINT (content)))
{
reg[RRR] = i;
reg[rrr] = XINT(content);
{
attrib = XCAR (content);
value = XCDR (content);
- if (!NUMBERP (attrib) || !NUMBERP (value))
+ if (! (INTEGERP (attrib) && INTEGERP (value)
+ && IN_INT_RANGE (XINT (value))))
continue;
reg[RRR] = i;
- reg[rrr] = XUINT (value);
+ reg[rrr] = XINT (value);
break;
}
else if (SYMBOLP (content))
mapping_stack_pointer = mapping_stack;
stack_idx_of_map_multiple = 0;
- map_set_rest_length =
- XINT (ccl_prog[ic++]); /* number of maps and separators. */
+ /* Get number of maps and separators. */
+ GET_CCL_INT (map_set_rest_length, ccl_prog, ic++);
+
fin_ic = ic + map_set_rest_length;
op = reg[rrr];
do {
for (;map_set_rest_length > 0;i++, ic++, map_set_rest_length--)
{
- point = XINT(ccl_prog[ic]);
+ GET_CCL_INT (point, ccl_prog, ic);
if (point < 0)
{
/* +1 is for including separator. */
/* check map type,
[STARTPOINT VAL1 VAL2 ...] or
[t ELEMENT STARTPOINT ENDPOINT] */
- if (NUMBERP (content))
+ if (INTEGERP (content))
{
- point = XUINT (content);
- point = op - point + 1;
- if (!((point >= 1) && (point < size))) continue;
- content = AREF (map, point);
+ point = XINT (content);
+ if (!(point <= op && op - point + 1 < size)) continue;
+ content = AREF (map, op - point + 1);
}
else if (EQ (content, Qt))
{
if (size != 4) continue;
- if ((op >= XUINT (AREF (map, 2))) &&
- (op < XUINT (AREF (map, 3))))
+ if (INTEGERP (AREF (map, 2))
+ && XINT (AREF (map, 2)) <= op
+ && INTEGERP (AREF (map, 3))
+ && op < XINT (AREF (map, 3)))
content = AREF (map, 1);
else
continue;
continue;
reg[RRR] = i;
- if (NUMBERP (content))
+ if (INTEGERP (content) && IN_INT_RANGE (XINT (content)))
{
op = XINT (content);
i += map_set_rest_length - 1;
{
attrib = XCAR (content);
value = XCDR (content);
- if (!NUMBERP (attrib) || !NUMBERP (value))
+ if (! (INTEGERP (attrib) && INTEGERP (value)
+ && IN_INT_RANGE (XINT (value))))
continue;
- op = XUINT (value);
+ op = XINT (value);
i += map_set_rest_length - 1;
ic += map_set_rest_length - 1;
POP_MAPPING_STACK (map_set_rest_length, reg[rrr]);
case CCL_MapSingle:
{
Lisp_Object map, attrib, value, content;
- int size, point;
+ int point;
j = XINT (ccl_prog[ic++]); /* map_id */
op = reg[rrr];
if (j >= ASIZE (Vcode_conversion_map_vector))
break;
}
map = XCDR (map);
- if (!VECTORP (map))
+ if (! (VECTORP (map)
+ && INTEGERP (AREF (map, 0))
+ && XINT (AREF (map, 0)) <= op
+ && op - XINT (AREF (map, 0)) + 1 < ASIZE (map)))
{
reg[RRR] = -1;
break;
}
- size = ASIZE (map);
- point = XUINT (AREF (map, 0));
+ point = XINT (AREF (map, 0));
point = op - point + 1;
reg[RRR] = 0;
- if ((size <= 1) ||
- (!((point >= 1) && (point < size))))
+ content = AREF (map, point);
+ if (NILP (content))
reg[RRR] = -1;
- else
+ else if (INTEGERP (content))
+ reg[rrr] = XINT (content);
+ else if (EQ (content, Qt));
+ else if (CONSP (content))
{
- reg[RRR] = 0;
- content = AREF (map, point);
- if (NILP (content))
- reg[RRR] = -1;
- else if (NUMBERP (content))
- reg[rrr] = XINT (content);
- else if (EQ (content, Qt));
- else if (CONSP (content))
- {
- attrib = XCAR (content);
- value = XCDR (content);
- if (!NUMBERP (attrib) || !NUMBERP (value))
- continue;
- reg[rrr] = XUINT(value);
- break;
- }
- else if (SYMBOLP (content))
- CCL_CALL_FOR_MAP_INSTRUCTION (content, ic);
- else
- reg[RRR] = -1;
+ attrib = XCAR (content);
+ value = XCDR (content);
+ if (!INTEGERP (attrib) || !INTEGERP (value))
+ continue;
+ reg[rrr] = XINT(value);
+ break;
}
+ else if (SYMBOLP (content))
+ CCL_CALL_FOR_MAP_INSTRUCTION (content, ic);
+ else
+ reg[RRR] = -1;
}
break;
if (! VECTORP (ccl_prog))
return -1;
vp = XVECTOR (ccl_prog);
- ccl->size = vp->size;
+ ccl->size = vp->header.size;
ccl->prog = vp->contents;
ccl->eof_ic = XINT (vp->contents[CCL_HEADER_EOF]);
ccl->buf_magnification = XINT (vp->contents[CCL_HEADER_BUF_MAG]);
staticpro (&Vccl_program_table);
Vccl_program_table = Fmake_vector (make_number (32), Qnil);
- Qccl = intern_c_string ("ccl");
- staticpro (&Qccl);
-
- Qcclp = intern_c_string ("cclp");
- staticpro (&Qcclp);
-
- Qccl_program = intern_c_string ("ccl-program");
- staticpro (&Qccl_program);
-
- Qccl_program_idx = intern_c_string ("ccl-program-idx");
- staticpro (&Qccl_program_idx);
-
- Qcode_conversion_map = intern_c_string ("code-conversion-map");
- staticpro (&Qcode_conversion_map);
-
- Qcode_conversion_map_id = intern_c_string ("code-conversion-map-id");
- staticpro (&Qcode_conversion_map_id);
+ DEFSYM (Qccl, "ccl");
+ DEFSYM (Qcclp, "cclp");
+ DEFSYM (Qccl_program, "ccl-program");
+ DEFSYM (Qccl_program_idx, "ccl-program-idx");
+ DEFSYM (Qcode_conversion_map, "code-conversion-map");
+ DEFSYM (Qcode_conversion_map_id, "code-conversion-map-id");
DEFVAR_LISP ("code-conversion-map-vector", Vcode_conversion_map_vector,
doc: /* Vector of code conversion maps. */);
HCoop / bpt / emacs.git / blobdiff