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cd8c6abcc8
For consistency, ./configure generated "config.h" must be the first header include through out the project. Signed-off-by: Rainer Gerhards <rgerhards@adiscon.com>
74 lines
2.3 KiB
C
74 lines
2.3 KiB
C
/* A simple regular expression checker for rsyslog test and debug.
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* Regular expressions have shown to turn out to be a hot support topic.
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* While I have done an online tool at http://www.rsyslog.com/tool-regex
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* there are still some situations where one wants to check against the
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* actual clib api calls. This is what this small test program does,
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* it takes its command line arguments (re first, then sample data) and
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* pushes them into the API and then shows the result. This should be
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* considered the ultimate reference for any questions arising.
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*
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* Copyright 2008 Rainer Gerhards and Adiscon GmbH.
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*
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* This file is part of rsyslog.
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*
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* Rsyslog is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Rsyslog is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Rsyslog. If not, see <http://www.gnu.org/licenses/>.
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*
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* A copy of the GPL can be found in the file "COPYING" in this distribution.
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*/
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#include "config.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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#include <regex.h>
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int main(int argc, char *argv[])
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{
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regex_t preg;
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size_t nmatch = 10;
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regmatch_t pmatch[10];
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char *pstr;
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int i;
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if(argc != 3) {
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fprintf(stderr, "usage: regex regexp sample-data\n");
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exit(1);
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}
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pstr = strdup(argv[2]); /* get working copy */
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i = regcomp(&preg, argv[1], REG_EXTENDED);
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printf("regcomp returns %d\n", i);
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i = regexec(&preg, pstr, nmatch, pmatch, 0);
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printf("regexec returns %d\n", i);
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if(i == REG_NOMATCH) {
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printf("found no match!\n");
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return 1;
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}
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printf("returned substrings:\n");
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for(i = 0 ; i < 10 ; i++) {
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printf("%d: so %d, eo %d", i, pmatch[i].rm_so, pmatch[i].rm_eo);
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if(pmatch[i].rm_so != -1) {
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int j;
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printf(", text: '");
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for(j = pmatch[i].rm_so ; j < pmatch[i].rm_eo ; ++j)
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putchar(pstr[j]);
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putchar('\'');
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}
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putchar('\n');
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}
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return 0;
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}
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