670 строки
22 KiB
C
670 строки
22 KiB
C
/*************************************************
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* Perl-Compatible Regular Expressions *
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*************************************************/
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/* PCRE is a library of functions to support regular expressions whose syntax
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and semantics are as close as possible to those of the Perl 5 language.
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Written by Philip Hazel
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Copyright (c) 1997-2012 University of Cambridge
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-----------------------------------------------------------------------------
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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* Neither the name of the University of Cambridge nor the names of its
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contributors may be used to endorse or promote products derived from
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this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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-----------------------------------------------------------------------------
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*/
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/* This module contains some convenience functions for extracting substrings
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from the subject string after a regex match has succeeded. The original idea
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for these functions came from Scott Wimer. */
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "pcre_internal.h"
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/*************************************************
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* Find number for named string *
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*************************************************/
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/* This function is used by the get_first_set() function below, as well
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as being generally available. It assumes that names are unique.
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Arguments:
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code the compiled regex
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stringname the name whose number is required
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Returns: the number of the named parentheses, or a negative number
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(PCRE_ERROR_NOSUBSTRING) if not found
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*/
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#if defined COMPILE_PCRE8
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PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
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pcre_get_stringnumber(const pcre *code, const char *stringname)
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#elif defined COMPILE_PCRE16
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PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
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pcre16_get_stringnumber(const pcre16 *code, PCRE_SPTR16 stringname)
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#elif defined COMPILE_PCRE32
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PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
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pcre32_get_stringnumber(const pcre32 *code, PCRE_SPTR32 stringname)
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#endif
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{
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int rc;
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int entrysize;
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int top, bot;
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pcre_uchar *nametable;
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#ifdef COMPILE_PCRE8
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if ((rc = pcre_fullinfo(code, NULL, PCRE_INFO_NAMECOUNT, &top)) != 0)
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return rc;
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if (top <= 0) return PCRE_ERROR_NOSUBSTRING;
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if ((rc = pcre_fullinfo(code, NULL, PCRE_INFO_NAMEENTRYSIZE, &entrysize)) != 0)
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return rc;
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if ((rc = pcre_fullinfo(code, NULL, PCRE_INFO_NAMETABLE, &nametable)) != 0)
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return rc;
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#endif
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#ifdef COMPILE_PCRE16
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if ((rc = pcre16_fullinfo(code, NULL, PCRE_INFO_NAMECOUNT, &top)) != 0)
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return rc;
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if (top <= 0) return PCRE_ERROR_NOSUBSTRING;
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if ((rc = pcre16_fullinfo(code, NULL, PCRE_INFO_NAMEENTRYSIZE, &entrysize)) != 0)
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return rc;
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if ((rc = pcre16_fullinfo(code, NULL, PCRE_INFO_NAMETABLE, &nametable)) != 0)
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return rc;
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#endif
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#ifdef COMPILE_PCRE32
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if ((rc = pcre32_fullinfo(code, NULL, PCRE_INFO_NAMECOUNT, &top)) != 0)
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return rc;
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if (top <= 0) return PCRE_ERROR_NOSUBSTRING;
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if ((rc = pcre32_fullinfo(code, NULL, PCRE_INFO_NAMEENTRYSIZE, &entrysize)) != 0)
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return rc;
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if ((rc = pcre32_fullinfo(code, NULL, PCRE_INFO_NAMETABLE, &nametable)) != 0)
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return rc;
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#endif
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bot = 0;
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while (top > bot)
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{
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int mid = (top + bot) / 2;
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pcre_uchar *entry = nametable + entrysize*mid;
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int c = STRCMP_UC_UC((pcre_uchar *)stringname,
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(pcre_uchar *)(entry + IMM2_SIZE));
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if (c == 0) return GET2(entry, 0);
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if (c > 0) bot = mid + 1; else top = mid;
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}
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return PCRE_ERROR_NOSUBSTRING;
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}
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/*************************************************
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* Find (multiple) entries for named string *
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*************************************************/
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/* This is used by the get_first_set() function below, as well as being
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generally available. It is used when duplicated names are permitted.
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Arguments:
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code the compiled regex
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stringname the name whose entries required
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firstptr where to put the pointer to the first entry
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lastptr where to put the pointer to the last entry
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Returns: the length of each entry, or a negative number
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(PCRE_ERROR_NOSUBSTRING) if not found
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*/
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#if defined COMPILE_PCRE8
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PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
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pcre_get_stringtable_entries(const pcre *code, const char *stringname,
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char **firstptr, char **lastptr)
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#elif defined COMPILE_PCRE16
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PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
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pcre16_get_stringtable_entries(const pcre16 *code, PCRE_SPTR16 stringname,
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PCRE_UCHAR16 **firstptr, PCRE_UCHAR16 **lastptr)
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#elif defined COMPILE_PCRE32
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PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
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pcre32_get_stringtable_entries(const pcre32 *code, PCRE_SPTR32 stringname,
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PCRE_UCHAR32 **firstptr, PCRE_UCHAR32 **lastptr)
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#endif
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{
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int rc;
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int entrysize;
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int top, bot;
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pcre_uchar *nametable, *lastentry;
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#ifdef COMPILE_PCRE8
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if ((rc = pcre_fullinfo(code, NULL, PCRE_INFO_NAMECOUNT, &top)) != 0)
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return rc;
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if (top <= 0) return PCRE_ERROR_NOSUBSTRING;
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if ((rc = pcre_fullinfo(code, NULL, PCRE_INFO_NAMEENTRYSIZE, &entrysize)) != 0)
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return rc;
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if ((rc = pcre_fullinfo(code, NULL, PCRE_INFO_NAMETABLE, &nametable)) != 0)
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return rc;
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#endif
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#ifdef COMPILE_PCRE16
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if ((rc = pcre16_fullinfo(code, NULL, PCRE_INFO_NAMECOUNT, &top)) != 0)
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return rc;
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if (top <= 0) return PCRE_ERROR_NOSUBSTRING;
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if ((rc = pcre16_fullinfo(code, NULL, PCRE_INFO_NAMEENTRYSIZE, &entrysize)) != 0)
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return rc;
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if ((rc = pcre16_fullinfo(code, NULL, PCRE_INFO_NAMETABLE, &nametable)) != 0)
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return rc;
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#endif
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#ifdef COMPILE_PCRE32
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if ((rc = pcre32_fullinfo(code, NULL, PCRE_INFO_NAMECOUNT, &top)) != 0)
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return rc;
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if (top <= 0) return PCRE_ERROR_NOSUBSTRING;
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if ((rc = pcre32_fullinfo(code, NULL, PCRE_INFO_NAMEENTRYSIZE, &entrysize)) != 0)
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return rc;
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if ((rc = pcre32_fullinfo(code, NULL, PCRE_INFO_NAMETABLE, &nametable)) != 0)
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return rc;
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#endif
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lastentry = nametable + entrysize * (top - 1);
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bot = 0;
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while (top > bot)
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{
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int mid = (top + bot) / 2;
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pcre_uchar *entry = nametable + entrysize*mid;
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int c = STRCMP_UC_UC((pcre_uchar *)stringname,
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(pcre_uchar *)(entry + IMM2_SIZE));
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if (c == 0)
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{
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pcre_uchar *first = entry;
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pcre_uchar *last = entry;
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while (first > nametable)
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{
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if (STRCMP_UC_UC((pcre_uchar *)stringname,
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(pcre_uchar *)(first - entrysize + IMM2_SIZE)) != 0) break;
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first -= entrysize;
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}
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while (last < lastentry)
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{
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if (STRCMP_UC_UC((pcre_uchar *)stringname,
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(pcre_uchar *)(last + entrysize + IMM2_SIZE)) != 0) break;
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last += entrysize;
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}
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#if defined COMPILE_PCRE8
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*firstptr = (char *)first;
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*lastptr = (char *)last;
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#elif defined COMPILE_PCRE16
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*firstptr = (PCRE_UCHAR16 *)first;
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*lastptr = (PCRE_UCHAR16 *)last;
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#elif defined COMPILE_PCRE32
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*firstptr = (PCRE_UCHAR32 *)first;
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*lastptr = (PCRE_UCHAR32 *)last;
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#endif
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return entrysize;
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}
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if (c > 0) bot = mid + 1; else top = mid;
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}
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return PCRE_ERROR_NOSUBSTRING;
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}
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/*************************************************
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* Find first set of multiple named strings *
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*************************************************/
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/* This function allows for duplicate names in the table of named substrings.
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It returns the number of the first one that was set in a pattern match.
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Arguments:
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code the compiled regex
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stringname the name of the capturing substring
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ovector the vector of matched substrings
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stringcount number of captured substrings
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Returns: the number of the first that is set,
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or the number of the last one if none are set,
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or a negative number on error
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*/
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#if defined COMPILE_PCRE8
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static int
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get_first_set(const pcre *code, const char *stringname, int *ovector,
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int stringcount)
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#elif defined COMPILE_PCRE16
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static int
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get_first_set(const pcre16 *code, PCRE_SPTR16 stringname, int *ovector,
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int stringcount)
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#elif defined COMPILE_PCRE32
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static int
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get_first_set(const pcre32 *code, PCRE_SPTR32 stringname, int *ovector,
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int stringcount)
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#endif
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{
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const REAL_PCRE *re = (const REAL_PCRE *)code;
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int entrysize;
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pcre_uchar *entry;
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#if defined COMPILE_PCRE8
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char *first, *last;
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#elif defined COMPILE_PCRE16
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PCRE_UCHAR16 *first, *last;
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#elif defined COMPILE_PCRE32
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PCRE_UCHAR32 *first, *last;
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#endif
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#if defined COMPILE_PCRE8
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if ((re->options & PCRE_DUPNAMES) == 0 && (re->flags & PCRE_JCHANGED) == 0)
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return pcre_get_stringnumber(code, stringname);
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entrysize = pcre_get_stringtable_entries(code, stringname, &first, &last);
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#elif defined COMPILE_PCRE16
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if ((re->options & PCRE_DUPNAMES) == 0 && (re->flags & PCRE_JCHANGED) == 0)
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return pcre16_get_stringnumber(code, stringname);
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entrysize = pcre16_get_stringtable_entries(code, stringname, &first, &last);
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#elif defined COMPILE_PCRE32
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if ((re->options & PCRE_DUPNAMES) == 0 && (re->flags & PCRE_JCHANGED) == 0)
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return pcre32_get_stringnumber(code, stringname);
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entrysize = pcre32_get_stringtable_entries(code, stringname, &first, &last);
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#endif
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if (entrysize <= 0) return entrysize;
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for (entry = (pcre_uchar *)first; entry <= (pcre_uchar *)last; entry += entrysize)
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{
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int n = GET2(entry, 0);
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if (n < stringcount && ovector[n*2] >= 0) return n;
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}
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return GET2(entry, 0);
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}
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/*************************************************
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* Copy captured string to given buffer *
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*************************************************/
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/* This function copies a single captured substring into a given buffer.
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Note that we use memcpy() rather than strncpy() in case there are binary zeros
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in the string.
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Arguments:
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subject the subject string that was matched
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ovector pointer to the offsets table
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stringcount the number of substrings that were captured
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(i.e. the yield of the pcre_exec call, unless
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that was zero, in which case it should be 1/3
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of the offset table size)
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stringnumber the number of the required substring
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buffer where to put the substring
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size the size of the buffer
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Returns: if successful:
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the length of the copied string, not including the zero
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that is put on the end; can be zero
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if not successful:
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PCRE_ERROR_NOMEMORY (-6) buffer too small
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PCRE_ERROR_NOSUBSTRING (-7) no such captured substring
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*/
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#if defined COMPILE_PCRE8
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PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
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pcre_copy_substring(const char *subject, int *ovector, int stringcount,
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int stringnumber, char *buffer, int size)
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#elif defined COMPILE_PCRE16
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PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
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pcre16_copy_substring(PCRE_SPTR16 subject, int *ovector, int stringcount,
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int stringnumber, PCRE_UCHAR16 *buffer, int size)
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#elif defined COMPILE_PCRE32
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PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
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pcre32_copy_substring(PCRE_SPTR32 subject, int *ovector, int stringcount,
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int stringnumber, PCRE_UCHAR32 *buffer, int size)
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#endif
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{
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int yield;
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if (stringnumber < 0 || stringnumber >= stringcount)
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return PCRE_ERROR_NOSUBSTRING;
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stringnumber *= 2;
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yield = ovector[stringnumber+1] - ovector[stringnumber];
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if (size < yield + 1) return PCRE_ERROR_NOMEMORY;
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memcpy(buffer, subject + ovector[stringnumber], IN_UCHARS(yield));
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buffer[yield] = 0;
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return yield;
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}
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/*************************************************
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* Copy named captured string to given buffer *
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*************************************************/
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/* This function copies a single captured substring into a given buffer,
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identifying it by name. If the regex permits duplicate names, the first
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substring that is set is chosen.
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Arguments:
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code the compiled regex
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subject the subject string that was matched
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ovector pointer to the offsets table
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stringcount the number of substrings that were captured
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(i.e. the yield of the pcre_exec call, unless
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that was zero, in which case it should be 1/3
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of the offset table size)
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stringname the name of the required substring
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buffer where to put the substring
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size the size of the buffer
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Returns: if successful:
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the length of the copied string, not including the zero
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that is put on the end; can be zero
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if not successful:
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PCRE_ERROR_NOMEMORY (-6) buffer too small
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PCRE_ERROR_NOSUBSTRING (-7) no such captured substring
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*/
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#if defined COMPILE_PCRE8
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PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
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pcre_copy_named_substring(const pcre *code, const char *subject,
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int *ovector, int stringcount, const char *stringname,
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char *buffer, int size)
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#elif defined COMPILE_PCRE16
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PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
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pcre16_copy_named_substring(const pcre16 *code, PCRE_SPTR16 subject,
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int *ovector, int stringcount, PCRE_SPTR16 stringname,
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PCRE_UCHAR16 *buffer, int size)
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#elif defined COMPILE_PCRE32
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PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
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pcre32_copy_named_substring(const pcre32 *code, PCRE_SPTR32 subject,
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int *ovector, int stringcount, PCRE_SPTR32 stringname,
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PCRE_UCHAR32 *buffer, int size)
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#endif
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{
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int n = get_first_set(code, stringname, ovector, stringcount);
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if (n <= 0) return n;
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#if defined COMPILE_PCRE8
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return pcre_copy_substring(subject, ovector, stringcount, n, buffer, size);
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#elif defined COMPILE_PCRE16
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return pcre16_copy_substring(subject, ovector, stringcount, n, buffer, size);
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#elif defined COMPILE_PCRE32
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return pcre32_copy_substring(subject, ovector, stringcount, n, buffer, size);
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#endif
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}
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/*************************************************
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* Copy all captured strings to new store *
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*************************************************/
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/* This function gets one chunk of store and builds a list of pointers and all
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of the captured substrings in it. A NULL pointer is put on the end of the list.
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Arguments:
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subject the subject string that was matched
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ovector pointer to the offsets table
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stringcount the number of substrings that were captured
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(i.e. the yield of the pcre_exec call, unless
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that was zero, in which case it should be 1/3
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of the offset table size)
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listptr set to point to the list of pointers
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Returns: if successful: 0
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if not successful:
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PCRE_ERROR_NOMEMORY (-6) failed to get store
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*/
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#if defined COMPILE_PCRE8
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PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
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pcre_get_substring_list(const char *subject, int *ovector, int stringcount,
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const char ***listptr)
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#elif defined COMPILE_PCRE16
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PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
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pcre16_get_substring_list(PCRE_SPTR16 subject, int *ovector, int stringcount,
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PCRE_SPTR16 **listptr)
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#elif defined COMPILE_PCRE32
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PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
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pcre32_get_substring_list(PCRE_SPTR32 subject, int *ovector, int stringcount,
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PCRE_SPTR32 **listptr)
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#endif
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{
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int i;
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int size = sizeof(pcre_uchar *);
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int double_count = stringcount * 2;
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pcre_uchar **stringlist;
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pcre_uchar *p;
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for (i = 0; i < double_count; i += 2)
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{
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size += sizeof(pcre_uchar *) + IN_UCHARS(1);
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if (ovector[i+1] > ovector[i]) size += IN_UCHARS(ovector[i+1] - ovector[i]);
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}
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stringlist = (pcre_uchar **)(PUBL(malloc))(size);
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if (stringlist == NULL) return PCRE_ERROR_NOMEMORY;
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#if defined COMPILE_PCRE8
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*listptr = (const char **)stringlist;
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#elif defined COMPILE_PCRE16
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*listptr = (PCRE_SPTR16 *)stringlist;
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#elif defined COMPILE_PCRE32
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|
*listptr = (PCRE_SPTR32 *)stringlist;
|
|
#endif
|
|
p = (pcre_uchar *)(stringlist + stringcount + 1);
|
|
|
|
for (i = 0; i < double_count; i += 2)
|
|
{
|
|
int len = (ovector[i+1] > ovector[i])? (ovector[i+1] - ovector[i]) : 0;
|
|
memcpy(p, subject + ovector[i], IN_UCHARS(len));
|
|
*stringlist++ = p;
|
|
p += len;
|
|
*p++ = 0;
|
|
}
|
|
|
|
*stringlist = NULL;
|
|
return 0;
|
|
}
|
|
|
|
|
|
|
|
/*************************************************
|
|
* Free store obtained by get_substring_list *
|
|
*************************************************/
|
|
|
|
/* This function exists for the benefit of people calling PCRE from non-C
|
|
programs that can call its functions, but not free() or (PUBL(free))()
|
|
directly.
|
|
|
|
Argument: the result of a previous pcre_get_substring_list()
|
|
Returns: nothing
|
|
*/
|
|
|
|
#if defined COMPILE_PCRE8
|
|
PCRE_EXP_DEFN void PCRE_CALL_CONVENTION
|
|
pcre_free_substring_list(const char **pointer)
|
|
#elif defined COMPILE_PCRE16
|
|
PCRE_EXP_DEFN void PCRE_CALL_CONVENTION
|
|
pcre16_free_substring_list(PCRE_SPTR16 *pointer)
|
|
#elif defined COMPILE_PCRE32
|
|
PCRE_EXP_DEFN void PCRE_CALL_CONVENTION
|
|
pcre32_free_substring_list(PCRE_SPTR32 *pointer)
|
|
#endif
|
|
{
|
|
(PUBL(free))((void *)pointer);
|
|
}
|
|
|
|
|
|
|
|
/*************************************************
|
|
* Copy captured string to new store *
|
|
*************************************************/
|
|
|
|
/* This function copies a single captured substring into a piece of new
|
|
store
|
|
|
|
Arguments:
|
|
subject the subject string that was matched
|
|
ovector pointer to the offsets table
|
|
stringcount the number of substrings that were captured
|
|
(i.e. the yield of the pcre_exec call, unless
|
|
that was zero, in which case it should be 1/3
|
|
of the offset table size)
|
|
stringnumber the number of the required substring
|
|
stringptr where to put a pointer to the substring
|
|
|
|
Returns: if successful:
|
|
the length of the string, not including the zero that
|
|
is put on the end; can be zero
|
|
if not successful:
|
|
PCRE_ERROR_NOMEMORY (-6) failed to get store
|
|
PCRE_ERROR_NOSUBSTRING (-7) substring not present
|
|
*/
|
|
|
|
#if defined COMPILE_PCRE8
|
|
PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
|
|
pcre_get_substring(const char *subject, int *ovector, int stringcount,
|
|
int stringnumber, const char **stringptr)
|
|
#elif defined COMPILE_PCRE16
|
|
PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
|
|
pcre16_get_substring(PCRE_SPTR16 subject, int *ovector, int stringcount,
|
|
int stringnumber, PCRE_SPTR16 *stringptr)
|
|
#elif defined COMPILE_PCRE32
|
|
PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
|
|
pcre32_get_substring(PCRE_SPTR32 subject, int *ovector, int stringcount,
|
|
int stringnumber, PCRE_SPTR32 *stringptr)
|
|
#endif
|
|
{
|
|
int yield;
|
|
pcre_uchar *substring;
|
|
if (stringnumber < 0 || stringnumber >= stringcount)
|
|
return PCRE_ERROR_NOSUBSTRING;
|
|
stringnumber *= 2;
|
|
yield = ovector[stringnumber+1] - ovector[stringnumber];
|
|
substring = (pcre_uchar *)(PUBL(malloc))(IN_UCHARS(yield + 1));
|
|
if (substring == NULL) return PCRE_ERROR_NOMEMORY;
|
|
memcpy(substring, subject + ovector[stringnumber], IN_UCHARS(yield));
|
|
substring[yield] = 0;
|
|
#if defined COMPILE_PCRE8
|
|
*stringptr = (const char *)substring;
|
|
#elif defined COMPILE_PCRE16
|
|
*stringptr = (PCRE_SPTR16)substring;
|
|
#elif defined COMPILE_PCRE32
|
|
*stringptr = (PCRE_SPTR32)substring;
|
|
#endif
|
|
return yield;
|
|
}
|
|
|
|
|
|
|
|
/*************************************************
|
|
* Copy named captured string to new store *
|
|
*************************************************/
|
|
|
|
/* This function copies a single captured substring, identified by name, into
|
|
new store. If the regex permits duplicate names, the first substring that is
|
|
set is chosen.
|
|
|
|
Arguments:
|
|
code the compiled regex
|
|
subject the subject string that was matched
|
|
ovector pointer to the offsets table
|
|
stringcount the number of substrings that were captured
|
|
(i.e. the yield of the pcre_exec call, unless
|
|
that was zero, in which case it should be 1/3
|
|
of the offset table size)
|
|
stringname the name of the required substring
|
|
stringptr where to put the pointer
|
|
|
|
Returns: if successful:
|
|
the length of the copied string, not including the zero
|
|
that is put on the end; can be zero
|
|
if not successful:
|
|
PCRE_ERROR_NOMEMORY (-6) couldn't get memory
|
|
PCRE_ERROR_NOSUBSTRING (-7) no such captured substring
|
|
*/
|
|
|
|
#if defined COMPILE_PCRE8
|
|
PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
|
|
pcre_get_named_substring(const pcre *code, const char *subject,
|
|
int *ovector, int stringcount, const char *stringname,
|
|
const char **stringptr)
|
|
#elif defined COMPILE_PCRE16
|
|
PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
|
|
pcre16_get_named_substring(const pcre16 *code, PCRE_SPTR16 subject,
|
|
int *ovector, int stringcount, PCRE_SPTR16 stringname,
|
|
PCRE_SPTR16 *stringptr)
|
|
#elif defined COMPILE_PCRE32
|
|
PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
|
|
pcre32_get_named_substring(const pcre32 *code, PCRE_SPTR32 subject,
|
|
int *ovector, int stringcount, PCRE_SPTR32 stringname,
|
|
PCRE_SPTR32 *stringptr)
|
|
#endif
|
|
{
|
|
int n = get_first_set(code, stringname, ovector, stringcount);
|
|
if (n <= 0) return n;
|
|
#if defined COMPILE_PCRE8
|
|
return pcre_get_substring(subject, ovector, stringcount, n, stringptr);
|
|
#elif defined COMPILE_PCRE16
|
|
return pcre16_get_substring(subject, ovector, stringcount, n, stringptr);
|
|
#elif defined COMPILE_PCRE32
|
|
return pcre32_get_substring(subject, ovector, stringcount, n, stringptr);
|
|
#endif
|
|
}
|
|
|
|
|
|
|
|
|
|
/*************************************************
|
|
* Free store obtained by get_substring *
|
|
*************************************************/
|
|
|
|
/* This function exists for the benefit of people calling PCRE from non-C
|
|
programs that can call its functions, but not free() or (PUBL(free))()
|
|
directly.
|
|
|
|
Argument: the result of a previous pcre_get_substring()
|
|
Returns: nothing
|
|
*/
|
|
|
|
#if defined COMPILE_PCRE8
|
|
PCRE_EXP_DEFN void PCRE_CALL_CONVENTION
|
|
pcre_free_substring(const char *pointer)
|
|
#elif defined COMPILE_PCRE16
|
|
PCRE_EXP_DEFN void PCRE_CALL_CONVENTION
|
|
pcre16_free_substring(PCRE_SPTR16 pointer)
|
|
#elif defined COMPILE_PCRE32
|
|
PCRE_EXP_DEFN void PCRE_CALL_CONVENTION
|
|
pcre32_free_substring(PCRE_SPTR32 pointer)
|
|
#endif
|
|
{
|
|
(PUBL(free))((void *)pointer);
|
|
}
|
|
|
|
/* End of pcre_get.c */
|