/* 
 *  Cflow2VCG
 *  Copyright (C) 2001 Guilhem BONNEFILLE
 *
 *  This program 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 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program 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 this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

#include <assert.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "cflow_struct.h"
#include "read_tools.h"
#include "read_free.h"

/*
  Line parser for Linux's cflow
  return:
  - 1 OK
  - 0 KO
*/
int scan_free(const char *line, LINE_INFO *line_info)
{
  int pos;
  int lu;

  /* Line id */
  lu = sscanf(line, "%d%n",
	      &(line_info->id), &pos);
  if (lu != 1)
    return 0;

  /* */
  line = line + pos;

  /* Deep */
  line_info->depth = str_count_char(line, '\t');

  /* Function name */
  lu = sscanf(line, "%s%n",
	      line_info->fct, &pos);
  if (lu != 1)
    return 0;

  /* The first field could be "...", not function name */
  if (strcmp(line_info->fct, "...") == 0)
    {
      /* Read the next field */
      line = line + pos;
      lu = sscanf(line, "%s%n",
		  line_info->fct, &pos);
      if (lu != 1)
	return 0;
    }
  
  /* */
  line = line + pos;

  /* Creation d'un noeud */
  if (strstr(line,"{}") != NULL)
    line_info->type = EXTERNAL;
  else if (strstr(line,"...") != NULL)
    {
      line_info->type = REFERENCE;
      /* Now, read the reference */
      line = strchr(line,'{');
      if (line == NULL)
	return 0;
      lu = sscanf(line, "{%d}", &(line_info->id));
      if (lu != 1)
	return 0;
    }
  else
    {
      line_info->type = INTERNAL;
      lu = sscanf(line, " {%s %d}",
		  line_info->src, &(line_info->line_src));
      if (lu != 2)
	return 0;
      line_info->fct_type[0]='\0';
    }

  /* Line scanned */
  return 1;
}