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* build-aux/gendocs.sh (version): * doc/gendocs_template: * doc/gendocs_template_min: * doc/gnulib.texi: * lib/version-etc.c (COPYRIGHT_YEAR): Update copyright dates by hand in templates and the like. * all files: Run 'make update-copyright'.
74 lines
1.8 KiB
C
74 lines
1.8 KiB
C
/* Auxiliary program to test a DFA code path that cannot be triggered
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by grep or gawk.
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Copyright 2014-2017 Free Software Foundation, Inc.
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This program 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, or (at your option)
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any later version.
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This program 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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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
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02110-1301, USA. */
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#include <config.h>
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#include <locale.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 <regex.h>
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#include <dfa.h>
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#include <localeinfo.h>
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#include "getprogname.h"
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_Noreturn void
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dfaerror (char const *mesg)
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{
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printf ("dfaerror: %s\n", mesg);
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exit (EXIT_FAILURE);
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}
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_Noreturn void
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dfawarn (char const *mesg)
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{
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printf ("dfawarn: %s\n", mesg);
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exit (EXIT_FAILURE);
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}
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int
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main (int argc, char **argv)
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{
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struct dfa *dfa;
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char *beg, *end, *p;
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int allow_nl;
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struct localeinfo localeinfo;
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if (argc < 3)
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exit (EXIT_FAILURE);
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setlocale (LC_ALL, "");
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init_localeinfo (&localeinfo);
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dfa = dfaalloc ();
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dfasyntax (dfa, &localeinfo, RE_SYNTAX_GREP | RE_NO_EMPTY_RANGES, 0);
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dfacomp (argv[1], strlen (argv[1]), dfa, 0);
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beg = argv[2];
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end = argv[2] + strlen (argv[2]);
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allow_nl = argc > 3 && atoi (argv[3]);
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p = dfaexec (dfa, beg, end, allow_nl, NULL, NULL);
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if (p != NULL)
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printf ("%zd\n", p - beg);
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exit (EXIT_SUCCESS);
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}
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