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author | Rainer Gerhards <rgerhards@adiscon.com> | 2008-11-18 12:05:51 +0100 |
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committer | Rainer Gerhards <rgerhards@adiscon.com> | 2008-11-18 12:05:51 +0100 |
commit | 599133164d93afb0dab792dadb8f5d6bc3d68a3f (patch) | |
tree | 9a8f791fa21386d3620fb8297e14e1c5eb231a62 /tools | |
parent | a5417f16044d7d56dbceeea09e25ba3e8c47cc01 (diff) | |
parent | 49dcad849e93551d90cd6298a576b67c4ad0c7ef (diff) | |
download | rsyslog-599133164d93afb0dab792dadb8f5d6bc3d68a3f.tar.gz rsyslog-599133164d93afb0dab792dadb8f5d6bc3d68a3f.tar.xz rsyslog-599133164d93afb0dab792dadb8f5d6bc3d68a3f.zip |
Merge branch 'beta'
Conflicts:
ChangeLog
configure.ac
doc/manual.html
doc/property_replacer.html
Diffstat (limited to 'tools')
-rw-r--r-- | tools/regexp.c | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/tools/regexp.c b/tools/regexp.c new file mode 100644 index 00000000..c8e4c681 --- /dev/null +++ b/tools/regexp.c @@ -0,0 +1,72 @@ +/* A simple regular expression checker for rsyslog test and debug. + * Regular expressions have shown to turn out to be a hot support topic. + * While I have done an online tool at http://www.rsyslog.com/tool-regex + * there are still some situations where one wants to check against the + * actual clib api calls. This is what this small test program does, + * it takes its command line arguments (re first, then sample data) and + * pushes them into the API and then shows the result. This should be + * considered the ultimate reference for any questions arising. + * + * Copyright 2008 Rainer Gerhards and Adiscon GmbH. + * + * This file is part of rsyslog. + * + * Rsyslog is 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 3 of the License, or + * (at your option) any later version. + * + * Rsyslog 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 Rsyslog. If not, see <http://www.gnu.org/licenses/>. + * + * A copy of the GPL can be found in the file "COPYING" in this distribution. + */ +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/types.h> +#include <regex.h> + +int main(int argc, char *argv[]) +{ + regex_t preg; + size_t nmatch = 10; + regmatch_t pmatch[10]; + char *pstr; + int i; + + if(argc != 3) { + fprintf(stderr, "usage: regex regexp sample-data\n"); + exit(1); + } + + pstr = strdup(argv[2]); /* get working copy */ + + i = regcomp(&preg, argv[1], REG_EXTENDED); + printf("regcomp returns %d\n", i); + i = regexec(&preg, pstr, nmatch, pmatch, 0); + printf("regexec returns %d\n", i); + if(i == REG_NOMATCH) { + printf("found no match!\n"); + return 1; + } + + printf("returned substrings:\n"); + for(i = 0 ; i < 10 ; i++) { + printf("%d: so %d, eo %d", i, pmatch[i].rm_so, pmatch[i].rm_eo); + if(pmatch[i].rm_so != -1) { + int j; + printf(", text: '"); + for(j = pmatch[i].rm_so ; j < pmatch[i].rm_eo ; ++j) + putchar(pstr[j]); + putchar('\''); + } + putchar('\n'); + } + return 0; +} |