msgfile.cc

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/*
 *  Copyright (C) 2002-2003  The Exult Team
 *
 *  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 <iostream>
#include <vector>
#include "utils.h"

using std::istream;
using std::cerr;
using std::endl;
using std::vector;

/*
 *  Read in text, where each line is of the form "nnn:sssss", where nnn is
 *  to be the Flex entry #, and anything after the ':' is the string to
 *  store.  
 *  NOTES:  Entry #'s may be skipped, and may be given in hex (0xnnn)
 *      or decimal.
 *    Max. text length is 1024.
 *    A line beginning with a '#' is a comment.
 *  Output: # of first message (i.e., lowest-numbered msg), or -1 if
 *    error.
 */

int Read_text_msg_file
  (
  istream& in,
  vector<char *>& strings   // Strings returned here, each
          //   allocated on heap.
  )
  {
  strings.resize(0);    // Initialize.
  strings.reserve(2000);
  char buf[1024];
  int linenum = 0;
#define NONEFOUND 0xffffffff
  unsigned long first = NONEFOUND;// Index of first one found.
  while (!in.eof())
    {
    ++linenum;
    in.get(buf, sizeof(buf));
    char delim;   // Check for end-of-line.
    in.get(delim);
    if (delim != '\n' && !in.eof())
      {
      cerr << "Line #" << linenum << " is too long" << endl;
      return -1;
      }
    if (!buf[0])
      continue; // Empty line.
    char *ptr = &buf[0];
    char *endptr;   // Get line# in decimal, hex, or oct.
    long index = strtol(ptr, &endptr, 0);
    if (endptr == ptr)  // No #?
      {
      if (*ptr == '#')
        continue;
      cerr << "Line " << linenum <<
          " doesn't start with a number" << endl;
      return -1;
      }
    if (*endptr != ':')
      {
      cerr << "Missing ':' in line " << linenum << 
        ".  Ignoring line" << endl;
      continue;
      }
    if (index >= strings.size())
      strings.resize(index + 1);
    strings[index] = newstrdup(endptr + 1);
    if (index < first)
      first = index;
    }
  return first == NONEFOUND ? -1 : (int) first;
  }

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