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425d593ebe
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk/trunk@2 d0cd1f9f-072b-0410-8dd7-cf729c803f20
63 lines
2.0 KiB
C++
63 lines
2.0 KiB
C++
/**********************************************************************
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* File: getopt.c
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* Description: Re-implementation of the unix code.
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* Author: Ray Smith
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* Created: Tue Nov 28 05:52:50 MST 1995
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*
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* (C) Copyright 1995, Hewlett-Packard Co.
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** Licensed under the Apache License, Version 2.0 (the "License");
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** you may not use this file except in compliance with the License.
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** You may obtain a copy of the License at
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** http://www.apache.org/licenses/LICENSE-2.0
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** Unless required by applicable law or agreed to in writing, software
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** distributed under the License is distributed on an "AS IS" BASIS,
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** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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** See the License for the specific language governing permissions and
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** limitations under the License.
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*
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**********************************************************************/
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#include "mfcpch.h" //precompiled headers
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#include <string.h>
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#include <stdio.h>
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#include "getopt.h"
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#include "notdll.h" //must be last include
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int optind;
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char *optarg;
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/**********************************************************************
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* getopt
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*
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* parse command line args.
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**********************************************************************/
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int
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getopt ( //parse args
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INT32 argc, //arg count
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char *argv[], //args
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const char *arglist //string of arg chars
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) {
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char *arg; //arg char
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if (optind == 0)
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optind = 1;
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if (optind < argc && argv[optind][0] == '-') {
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arg = strchr (arglist, argv[optind][1]);
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if (arg == NULL || *arg == ':')
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return '?'; //dud option
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optind++;
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optarg = argv[optind];
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if (arg[1] == ':') {
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if (argv[optind - 1][2] != '\0')
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//immediately after
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optarg = argv[optind - 1] + 2;
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else
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optind++;
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}
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return *arg;
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}
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else
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return EOF;
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}
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