/*************************************************************************/
 /*                                                                       */
 /*                Centre for Speech Technology Research                  */
 /*                     University of Edinburgh, UK                       */
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 /*************************************************************************/
 /*                                                                       */
 /*                  Authors:  Richard Caley                              */
 /* -------------------------------------------------------------------   */
 /*  Label conversion main file                                           */
 /*                                                                       */
 /*************************************************************************/


#include <cstdlib>
#include "EST_error.h"
#include "EST_ling_class.h"
#include "EST_cmd_line.h"

int main(int argc, char *argv[])
{
    EST_String out_file, ext;
    EST_StrList files;
    EST_Option al;

    parse_command_line(argc, argv, 
       EST_String("Usage:   "
       "ch_utt  <input file> -o <output file> <options>\n"
       "Summary: change/copy utterance file\n"
       "use \"-\" to make input and output files stdin/out\n"
       "-h               Options help\n"
       "-f <string>	 Feature to use as item ID when merging utterances.\n"
       "-o <ofile>       output file name\n"
       "-otype <string>  output file type: \n"
       "-sysdir <string> Look for unqualified system entities in this directory"
       ) + options_utterance_filetypes_long(),
			files, al);

    EST_Utterance utt;
    EST_read_status rstat;

    EST_String feat = al.present("-f")?al.sval("-f"):EST_String("name");

    if (al.present("-sysdir"))
      utterance_xml_register_id("^\\([^/]*\\)",
			 al.sval("-sysdir") + "/\\1");

    rstat=utt.load(files.first());

    if (rstat == read_format_error)
      EST_error("Bad format in %s", (const char *)files.first());
    else if (rstat != read_ok)
      EST_sys_error("Error reading %s", (const char *)files.first());

    EST_Utterance u;

    EST_Litem *fp = files.head()->next();
    for(; fp != NULL; fp=fp->next())
      {
	rstat = u.load(files(fp));

	if (rstat == read_format_error)
	  EST_error("Bad format in %s", (const char *)files(fp));
	else if (rstat != read_ok)
	  EST_sys_error("Error reading %s", (const char *)files(fp));
    
	utterance_merge(utt, u, feat);
      }

    EST_String otype = al.present("-otype")? al.sval("-otype") : (EST_String)"est";

    if (al.present("-o"))
      utt.save(al.sval("-o"), otype);
    else
    {
      utt.save("-", otype);
    }
    
    return 0;
}