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Fix problem when compiling without Unicode support.

This commit is contained in:
Philip.Hazel 2018-01-12 17:55:47 +00:00
parent 940627c83a
commit a6237da13e
1 changed files with 30 additions and 11 deletions
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31
src/pcre2_extuni.c
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@ -7,7 +7,7 @@ and semantics are as close as possible to those of the Perl 5 language.
Written by Philip Hazel
Original API code Copyright (c) 1997-2012 University of Cambridge
New API code Copyright (c) 2016-2017 University of Cambridge
New API code Copyright (c) 2016-2018 University of Cambridge
-----------------------------------------------------------------------------
Redistribution and use in source and binary forms, with or without
@ -40,7 +40,9 @@ POSSIBILITY OF SUCH DAMAGE.
/* This module contains an internal function that is used to match a Unicode
extended grapheme sequence. It is used by both pcre2_match() and
pcre2_def_match(). */
pcre2_def_match(). However, it is called only when Unicode support is being
compiled. Nevertheless, we provide a dummy function when there is no Unicode
support, because some compilers do not like functionless source files. */
#ifdef HAVE_CONFIG_H
@ -50,6 +52,25 @@ pcre2_def_match(). */
#include "pcre2_internal.h"
/* Dummy function */
#ifndef SUPPORT_UNICODE
PCRE2_SPTR
PRIV(extuni)(uint32_t c, PCRE2_SPTR eptr, PCRE2_SPTR start_subject,
PCRE2_SPTR end_subject, BOOL utf, int *xcount)
{
(void)c;
(void)eptr;
(void)start_subject;
(void)end_subject;
(void)utf;
(void)xcount;
return NULL;
}
#else
/*************************************************
* Match an extended grapheme sequence *
*************************************************/
@ -88,23 +109,19 @@ while (eptr < end_subject)
{
int ricount = 0;
PCRE2_SPTR bptr = eptr - 1;
#ifdef SUPPORT_UNICODE
if (utf) BACKCHAR(bptr);
#endif
/* bptr is pointing to the left-hand character */
while (bptr > start_subject)
{
bptr--;
#ifdef SUPPORT_UNICODE
if (utf)
{
BACKCHAR(bptr);
GETCHAR(c, bptr);
}
else
#endif
c = *bptr;
if (UCD_GRAPHBREAK(c) != ucp_gbRegionalIndicator) break;
ricount++;
@ -126,4 +143,6 @@ while (eptr < end_subject)
return eptr;
}
#endif /* SUPPORT_UNICODE */
/* End of pcre2_extuni.c */