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gh-124130: Fix a bug in matching regular expression \B in empty string (GH-127007)

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Serhiy Storchaka 2025-01-02 14:11:21 +02:00 • committed by GitHub
parent 8d16919a06
commit a3711d1541
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GPG key ID: B5690EEEBB952194
5 changed files with 15 additions and 25 deletions
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12
Modules/_sre/sre_lib.h
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@ -42,8 +42,6 @@ SRE(at)(SRE_STATE* state, const SRE_CHAR* ptr, SRE_CODE at)
return ((void*) ptr == state->end);
case SRE_AT_BOUNDARY:
if (state->beginning == state->end)
return 0;
thatp = ((void*) ptr > state->beginning) ?
SRE_IS_WORD((int) ptr[-1]) : 0;
thisp = ((void*) ptr < state->end) ?
@ -51,8 +49,6 @@ SRE(at)(SRE_STATE* state, const SRE_CHAR* ptr, SRE_CODE at)
return thisp != thatp;
case SRE_AT_NON_BOUNDARY:
if (state->beginning == state->end)
return 0;
thatp = ((void*) ptr > state->beginning) ?
SRE_IS_WORD((int) ptr[-1]) : 0;
thisp = ((void*) ptr < state->end) ?
@ -60,8 +56,6 @@ SRE(at)(SRE_STATE* state, const SRE_CHAR* ptr, SRE_CODE at)
return thisp == thatp;
case SRE_AT_LOC_BOUNDARY:
if (state->beginning == state->end)
return 0;
thatp = ((void*) ptr > state->beginning) ?
SRE_LOC_IS_WORD((int) ptr[-1]) : 0;
thisp = ((void*) ptr < state->end) ?
@ -69,8 +63,6 @@ SRE(at)(SRE_STATE* state, const SRE_CHAR* ptr, SRE_CODE at)
return thisp != thatp;
case SRE_AT_LOC_NON_BOUNDARY:
if (state->beginning == state->end)
return 0;
thatp = ((void*) ptr > state->beginning) ?
SRE_LOC_IS_WORD((int) ptr[-1]) : 0;
thisp = ((void*) ptr < state->end) ?
@ -78,8 +70,6 @@ SRE(at)(SRE_STATE* state, const SRE_CHAR* ptr, SRE_CODE at)
return thisp == thatp;
case SRE_AT_UNI_BOUNDARY:
if (state->beginning == state->end)
return 0;
thatp = ((void*) ptr > state->beginning) ?
SRE_UNI_IS_WORD((int) ptr[-1]) : 0;
thisp = ((void*) ptr < state->end) ?
@ -87,8 +77,6 @@ SRE(at)(SRE_STATE* state, const SRE_CHAR* ptr, SRE_CODE at)
return thisp != thatp;
case SRE_AT_UNI_NON_BOUNDARY:
if (state->beginning == state->end)
return 0;
thatp = ((void*) ptr > state->beginning) ?
SRE_UNI_IS_WORD((int) ptr[-1]) : 0;
thisp = ((void*) ptr < state->end) ?