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/*
gfsm-utils : finite state automaton utilities
Copyright (C) 2005 by Bryan Jurish <moocow@ling.uni-potsdam.de>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <ctype.h>
#include <gfsm.h>
#include "gfsmcompre_cmdparser.h"
/*--------------------------------------------------------------------------
* Globals
*--------------------------------------------------------------------------*/
char *progname = "gfsmcompre";
//-- options
struct gengetopt_args_info args;
//-- files
const char *fstfilename = "-";
const char *outfilename = "-";
//-- global structs
gfsmRegexCompiler *rec = NULL;
gfsmAlphabet *abet = NULL;
gfsmError *err = NULL;
gboolean emit_warnings = TRUE;
/*--------------------------------------------------------------------------
* Option Processing
*--------------------------------------------------------------------------*/
void get_my_options(int argc, char **argv)
{
if (cmdline_parser(argc, argv, &args) != 0)
exit(1);
//-- load environmental defaults
//cmdline_parser_envdefaults(&args);
//-- sanity checks
if (!args.regex_given) {
g_printerr("%s: no regex specified!\n", progname);
cmdline_parser_print_help();
exit(-1);
}
//-- filenames
outfilename = args.output_arg;
//-- alphabet: basic labels
abet = gfsm_string_alphabet_new();
if (args.labels_given) {
if (!gfsm_alphabet_load_filename(abet, args.labels_arg, &err)) {
g_printerr("%s: load failed for labels file '%s': %s\n",
progname, args.labels_arg, err->message);
exit(2);
}
}
//-- options for regex compiler
rec = gfsm_regex_compiler_new_full("gfsmRegexCompiler",
abet,
gfsm_sr_name_to_type(args.semiring_arg),
emit_warnings);
}
/*--------------------------------------------------------------------------
* MAIN
*--------------------------------------------------------------------------*/
int main (int argc, char **argv)
{
gfsmAutomaton *fsm;
char *regex=NULL;
GFSM_INIT
get_my_options(argc,argv);
//-- string-compile hack: escape everything
if (args.string_flag) {
GString *tmp = g_string_new("");
int i;
for (i=0; i < strlen(args.regex_arg); i++) {
g_string_append_c(tmp,'\\');
g_string_append_c(tmp,args.regex_arg[i]);
}
regex = tmp->str;
g_string_free(tmp,FALSE);
} else {
regex = args.regex_arg;
}
//-- parse regex string
gfsm_scanner_scan_string(&(rec->scanner), regex);
fsm = gfsm_regex_compiler_parse(rec);
//-- check for errors
if (rec->scanner.err) {
g_printerr("%s: %s\n", progname, err->message);
exit(3);
}
if (!fsm) {
g_printerr("%s: no automaton!\n", progname);
exit(4);
}
//-- save output fsm
if (!gfsm_automaton_save_bin_filename(fsm,outfilename,args.compress_arg,&err)) {
g_printerr("%s: store failed to '%s': %s\n", progname, outfilename, err->message);
exit(5);
}
//-- cleanup
gfsm_regex_compiler_free(rec,TRUE,TRUE);
GFSM_FINISH
return 0;
}
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