2 * Copyright (c) 1999-2000, Image Power, Inc. and the University of
4 * Copyright (c) 2001-2002 Michael David Adams.
8 /* __START_OF_JASPER_LICENSE__
10 * JasPer License Version 2.0
12 * Copyright (c) 1999-2000 Image Power, Inc.
13 * Copyright (c) 1999-2000 The University of British Columbia
14 * Copyright (c) 2001-2003 Michael David Adams
16 * All rights reserved.
18 * Permission is hereby granted, free of charge, to any person (the
19 * "User") obtaining a copy of this software and associated documentation
20 * files (the "Software"), to deal in the Software without restriction,
21 * including without limitation the rights to use, copy, modify, merge,
22 * publish, distribute, and/or sell copies of the Software, and to permit
23 * persons to whom the Software is furnished to do so, subject to the
24 * following conditions:
26 * 1. The above copyright notices and this permission notice (which
27 * includes the disclaimer below) shall be included in all copies or
28 * substantial portions of the Software.
30 * 2. The name of a copyright holder shall not be used to endorse or
31 * promote products derived from the Software without specific prior
34 * THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS
35 * LICENSE. NO USE OF THE SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER
36 * THIS DISCLAIMER. THE SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS
37 * "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
38 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
39 * PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN NO
40 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
41 * INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
42 * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
43 * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
44 * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. NO ASSURANCES ARE
45 * PROVIDED BY THE COPYRIGHT HOLDERS THAT THE SOFTWARE DOES NOT INFRINGE
46 * THE PATENT OR OTHER INTELLECTUAL PROPERTY RIGHTS OF ANY OTHER ENTITY.
47 * EACH COPYRIGHT HOLDER DISCLAIMS ANY LIABILITY TO THE USER FOR CLAIMS
48 * BROUGHT BY ANY OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL
49 * PROPERTY RIGHTS OR OTHERWISE. AS A CONDITION TO EXERCISING THE RIGHTS
50 * GRANTED HEREUNDER, EACH USER HEREBY ASSUMES SOLE RESPONSIBILITY TO SECURE
51 * ANY OTHER INTELLECTUAL PROPERTY RIGHTS NEEDED, IF ANY. THE SOFTWARE
52 * IS NOT FAULT-TOLERANT AND IS NOT INTENDED FOR USE IN MISSION-CRITICAL
53 * SYSTEMS, SUCH AS THOSE USED IN THE OPERATION OF NUCLEAR FACILITIES,
54 * AIRCRAFT NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL
55 * SYSTEMS, DIRECT LIFE SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH
56 * THE FAILURE OF THE SOFTWARE OR SYSTEM COULD LEAD DIRECTLY TO DEATH,
57 * PERSONAL INJURY, OR SEVERE PHYSICAL OR ENVIRONMENTAL DAMAGE ("HIGH
58 * RISK ACTIVITIES"). THE COPYRIGHT HOLDERS SPECIFICALLY DISCLAIM ANY
59 * EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR HIGH RISK ACTIVITIES.
61 * __END_OF_JASPER_LICENSE__
65 * Command Line Option Parsing Library
67 * $Id: jas_getopt.c,v 1.1 2005/05/22 18:32:58 malaterre Exp $
70 /******************************************************************************\
72 \******************************************************************************/
77 #include "jasper/jas_getopt.h"
78 #include "jasper/jas_math.h"
80 /******************************************************************************\
82 \******************************************************************************/
88 /******************************************************************************\
90 \******************************************************************************/
92 static jas_opt_t *jas_optlookup(jas_opt_t *opts, char *name)
96 for (opt = opts; opt->id >= 0 && opt->name; ++opt) {
97 if (!strcmp(opt->name, name)) {
104 int jas_getopt(int argc, char **argv, jas_opt_t *opts)
113 jas_optind = JAS_MIN(1, argc);
115 while (jas_optind < argc) {
116 s = cp = argv[jas_optind];
118 /* We are processing an option. */
121 /* We are processing a long option. */
124 /* This is the end of the options. */
125 return JAS_GETOPT_EOF;
127 if (!(opt = jas_optlookup(opts, cp))) {
129 fprintf(stderr, "unknown long option %s\n", s);
131 return JAS_GETOPT_ERR;
133 hasarg = (opt->flags & JAS_OPT_HASARG) != 0;
136 /* We are processing a short option. */
137 if (strlen(cp) != 1 ||
138 !(opt = jas_optlookup(opts, cp))) {
140 fprintf(stderr, "unknown short option %s\n", s);
142 return JAS_GETOPT_ERR;
144 hasarg = (opt->flags & JAS_OPT_HASARG) != 0;
148 /* The option has an argument. */
149 if (jas_optind >= argc) {
151 fprintf(stderr, "missing argument for option %s\n", s);
153 return JAS_GETOPT_ERR;
155 jas_optarg = argv[jas_optind];
158 /* The option does not have an argument. */
163 /* We are not processing an option. */
164 return JAS_GETOPT_EOF;
167 return JAS_GETOPT_EOF;