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/*
Variables Plugin for Miranda-IM (www.miranda-im.org)
Copyright 2003-2006 P. Boon
This program is mir_free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "variables.h"
#include "parse_regexp.h"
#define PCRE_STATIC
#include "pcre.h"
/*
pattern, subject
*/
static TCHAR *parseRegExpCheck(ARGUMENTSINFO *ai) {
const char *err;
int erroffset;
char szVal[34], *arg1, *arg2;
int offsets[99];
if (ai->argc != 3) {
return NULL;
}
ai->flags = AIF_FALSE;
arg1 = mir_t2a(ai->targv[1]);
arg2 = mir_t2a(ai->targv[2]);
pcre *ppat = pcre_compile(arg1, 0, &err, &erroffset, NULL);
if (ppat == NULL) {
mir_free(arg1);
mir_free(arg2);
return NULL;
}
pcre_extra *extra = pcre_study(ppat, 0, &err);
int nmat = pcre_exec(ppat, extra, arg2, (int)strlen(arg2), 0, 0, offsets, 99);
mir_free(arg1);
mir_free(arg2);
if (nmat > 0) {
ai->flags &= ~AIF_FALSE;
_ltoa(nmat, szVal, 10);
TCHAR *res = mir_a2t(szVal);
return res;
}
return mir_tstrdup(_T("0"));
}
/*
pattern, subject, substring no (== PCRE string no (starting at 0))
*/
static TCHAR *parseRegExpSubstr(ARGUMENTSINFO *ai) {
const char *err, *substring;
char *res, *arg1, *arg2, *arg3;
int erroffset, number;
int offsets[99];
TCHAR *tres;
if (ai->argc != 4) {
return NULL;
}
arg1 = mir_t2a(ai->targv[1]);
arg2 = mir_t2a(ai->targv[2]);
arg3 = mir_t2a(ai->targv[3]);
number = atoi(arg3);
if (number < 0) {
mir_free(arg1);
mir_free(arg2);
mir_free(arg3);
return NULL;
}
ai->flags = AIF_FALSE;
pcre *ppat = pcre_compile(arg1, 0, &err, &erroffset, NULL);
if (ppat == NULL) {
mir_free(arg1);
mir_free(arg2);
mir_free(arg3);
return NULL;
}
pcre_extra *extra = pcre_study(ppat, 0, &err);
int nmat = pcre_exec(ppat, extra, arg2, (int)strlen(arg2), 0, 0, offsets, 99);
if (nmat >= 0) {
ai->flags &= ~AIF_FALSE;
}
if (pcre_get_substring(arg2, offsets, nmat, number, &substring) < 0) {
ai->flags |= AIF_FALSE;
}
else {
res = mir_strdup(substring);
pcre_free_substring(substring);
tres = mir_a2t(res);
mir_free(res);
mir_free(arg1);
mir_free(arg2);
mir_free(arg3);
return tres;
}
mir_free(arg1);
mir_free(arg2);
mir_free(arg3);
return mir_tstrdup(_T(""));
}
int registerRegExpTokens() {
registerIntToken(_T(REGEXPCHECK), parseRegExpCheck, TRF_FUNCTION, LPGEN("Regular Expressions")"\t(x,y)\t"LPGEN("(ANSI input only) the number of substring matches found in y with pattern x"));
registerIntToken(_T(REGEXPSUBSTR), parseRegExpSubstr, TRF_FUNCTION, LPGEN("Regular Expressions")"\t(x,y,z)\t"LPGEN("(ANSI input only) substring match number z found in subject y with pattern x"));
return 0;
}
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