tesseract/src/training/tessopt.cpp
2018-10-20 21:46:40 +02:00

60 lines
1.9 KiB
C++

/**********************************************************************
* File: tessopt.cpp
* Description: Re-implementation of the unix code.
* Author: Ray Smith
* Created: Tue Nov 28 05:52:50 MST 1995
*
* (C) Copyright 1995, Hewlett-Packard Co.
** Licensed under the Apache License, Version 2.0 (the "License");
** you may not use this file except in compliance with the License.
** You may obtain a copy of the License at
** http://www.apache.org/licenses/LICENSE-2.0
** Unless required by applicable law or agreed to in writing, software
** distributed under the License is distributed on an "AS IS" BASIS,
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
** See the License for the specific language governing permissions and
** limitations under the License.
*
**********************************************************************/
#include <cstring>
#include <cstdio>
#include "tessopt.h"
int tessoptind;
char *tessoptarg;
/**********************************************************************
* tessopt
*
* parse command line args.
**********************************************************************/
int tessopt ( //parse args
int32_t argc, //arg count
char *argv[], //args
const char *arglist //string of arg chars
) {
const char *arg; //arg char
if (tessoptind == 0)
tessoptind = 1;
if (tessoptind < argc && argv[tessoptind][0] == '-') {
arg = strchr (arglist, argv[tessoptind][1]);
if (arg == nullptr || *arg == ':')
return '?'; //dud option
tessoptind++;
tessoptarg = argv[tessoptind];
if (arg[1] == ':') {
if (argv[tessoptind - 1][2] != '\0')
//immediately after
tessoptarg = argv[tessoptind - 1] + 2;
else
tessoptind++;
}
return *arg;
}
else
return EOF;
}