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comparison src/regex.c @ 82:6a378aca36af r20-0b91

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Import from CVS: tag r20-0b91
author cvs
date Mon, 13 Aug 2007 09:07:36 +0200
parents 131b0175ea99
children a145efe76779
comparison
equal deleted inserted replaced
81:ebca3d831cea 82:6a378aca36af
1123 This is a variable only so users of regex can assign to it; we never 1123 This is a variable only so users of regex can assign to it; we never
1124 change it ourselves. */ 1124 change it ourselves. */
1125 #if defined (MATCH_MAY_ALLOCATE) 1125 #if defined (MATCH_MAY_ALLOCATE)
1126 /* 4400 was enough to cause a crash on Alpha OSF/1, 1126 /* 4400 was enough to cause a crash on Alpha OSF/1,
1127 whose default stack limit is 2mb. */ 1127 whose default stack limit is 2mb. */
1128 int re_max_failures = 4000; 1128 int re_max_failures = 20000;
1129 #else 1129 #else
1130 int re_max_failures = 2000; 1130 int re_max_failures = 2000;
1131 #endif 1131 #endif
1132 1132
1133 union fail_stack_elt 1133 union fail_stack_elt
1346 #else 1346 #else
1347 #define NUM_NONREG_ITEMS 4 1347 #define NUM_NONREG_ITEMS 4
1348 #endif 1348 #endif
1349 1349
1350 /* We push at most this many items on the stack. */ 1350 /* We push at most this many items on the stack. */
1351 #define MAX_FAILURE_ITEMS ((num_regs - 1) * NUM_REG_ITEMS + NUM_NONREG_ITEMS) 1351 /* We used to use (num_regs - 1), which is the number of registers
1352 this regexp will save; but that was changed to 5
1353 to avoid stack overflow for a regexp with lots of parens. */
1354 #define MAX_FAILURE_ITEMS (5 * NUM_REG_ITEMS + NUM_NONREG_ITEMS)
1352 1355
1353 /* We actually push this many items. */ 1356 /* We actually push this many items. */
1354 #define NUM_FAILURE_ITEMS \ 1357 #define NUM_FAILURE_ITEMS \
1355 ((highest_active_reg - lowest_active_reg + 1) * NUM_REG_ITEMS \ 1358 ((highest_active_reg - lowest_active_reg + 1) * NUM_REG_ITEMS \
1356 + NUM_NONREG_ITEMS) 1359 + NUM_NONREG_ITEMS)