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1 /* getopt_long and getopt_long_only entry points for GNU getopt.
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2 Copyright (C) 1987, 88, 89, 90, 91, 92, 1993, 1994
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3 Free Software Foundation, Inc.
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4
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5 This program is free software; you can redistribute it and/or modify it
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6 under the terms of the GNU General Public License as published by the
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7 Free Software Foundation; either version 2, or (at your option) any
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8 later version.
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9
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10 This program is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 GNU General Public License for more details.
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14
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15 You should have received a copy of the GNU General Public License
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16 along with this program; see the file COPYING. If not, write to
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17 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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18 Boston, MA 02111-1307, USA. */
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19
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20 /* Synched up with: FSF 19.29. */
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21
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22
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23 #ifdef HAVE_CONFIG_H
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24 #if defined (emacs) || defined (CONFIG_BROKETS)
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25 /* We use <config.h> instead of "config.h" so that a compilation
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26 using -I. -I$srcdir will use ./config.h rather than $srcdir/config.h
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27 (which it would do because it found this file in $srcdir). */
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28 #include <config.h>
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29 #else
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30 #include "config.h"
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31 #endif
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32 #endif
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33
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34 /* This must be done before getopt.h is included so that the
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35 prototypes contained in it are also affected. */
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36 #if !defined (__STDC__) || !__STDC__
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37 /* This is a separate conditional since some stdc systems
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38 reject `defined (const)'. */
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39 #ifndef const
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40 #define const
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41 #endif
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42 #endif
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43
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44 #include "getopt.h"
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45
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46 #include <stdio.h>
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47
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48 /* Comment out all this code if we are using the GNU C Library, and are not
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49 actually compiling the library itself. This code is part of the GNU C
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50 Library, but also included in many other GNU distributions. Compiling
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51 and linking in this code is a waste when using the GNU C library
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52 (especially if it is a shared library). Rather than having every GNU
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53 program understand `configure --with-gnu-libc' and omit the object files,
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54 it is simpler to just do this in the source for each such file. */
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55
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56 #if defined (_LIBC) || !defined (__GNU_LIBRARY__)
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57
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58
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59 /* This needs to come after some library #include
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60 to get __GNU_LIBRARY__ defined. */
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61 #ifdef __GNU_LIBRARY__
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62 #include <stdlib.h>
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63 #else
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64 char *getenv ();
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65 #endif
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66
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67 #ifndef NULL
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68 #define NULL 0
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69 #endif
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70
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71 int
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72 getopt_long (int argc, char *const *argv, const char *options,
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73 const struct option *long_options, int *opt_index)
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74 {
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75 return _getopt_internal (argc, argv, options, long_options, opt_index, 0);
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76 }
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77
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78 /* Like getopt_long, but '-' as well as '--' can indicate a long option.
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79 If an option that starts with '-' (not '--') doesn't match a long option,
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80 but does match a short option, it is parsed as a short option
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81 instead. */
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82
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83 int
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84 getopt_long_only (argc, argv, options, long_options, opt_index)
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85 int argc;
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86 char *const *argv;
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87 const char *options;
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88 const struct option *long_options;
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89 int *opt_index;
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90 {
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91 return _getopt_internal (argc, argv, options, long_options, opt_index, 1);
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92 }
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93
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94
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95 #endif /* _LIBC or not __GNU_LIBRARY__. */
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96
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97 #ifdef TEST
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98
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99 #include <stdio.h>
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100
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101 int
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102 main (argc, argv)
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103 int argc;
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104 char **argv;
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105 {
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106 int c;
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107 int digit_optind = 0;
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108
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109 while (1)
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110 {
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111 int this_option_optind = optind ? optind : 1;
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112 int option_index = 0;
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113 static struct option long_options[] =
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114 {
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115 {"add", 1, 0, 0},
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116 {"append", 0, 0, 0},
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117 {"delete", 1, 0, 0},
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118 {"verbose", 0, 0, 0},
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119 {"create", 0, 0, 0},
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120 {"file", 1, 0, 0},
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121 {0, 0, 0, 0}
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122 };
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123
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124 c = getopt_long (argc, argv, "abc:d:0123456789",
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125 long_options, &option_index);
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126 if (c == EOF)
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127 break;
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128
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129 switch (c)
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130 {
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131 case 0:
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132 printf ("option %s", long_options[option_index].name);
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133 if (optarg)
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134 printf (" with arg %s", optarg);
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135 printf ("\n");
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136 break;
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137
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138 case '0':
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139 case '1':
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140 case '2':
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141 case '3':
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142 case '4':
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143 case '5':
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144 case '6':
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145 case '7':
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146 case '8':
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147 case '9':
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148 if (digit_optind != 0 && digit_optind != this_option_optind)
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149 printf ("digits occur in two different argv-elements.\n");
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150 digit_optind = this_option_optind;
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151 printf ("option %c\n", c);
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152 break;
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153
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154 case 'a':
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155 printf ("option a\n");
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156 break;
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157
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158 case 'b':
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159 printf ("option b\n");
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160 break;
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161
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162 case 'c':
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163 printf ("option c with value `%s'\n", optarg);
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164 break;
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165
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166 case 'd':
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167 printf ("option d with value `%s'\n", optarg);
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168 break;
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169
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170 case '?':
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171 break;
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172
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173 default:
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174 printf ("?? getopt returned character code 0%o ??\n", c);
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175 }
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176 }
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177
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178 if (optind < argc)
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179 {
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180 printf ("non-option ARGV-elements: ");
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181 while (optind < argc)
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182 printf ("%s ", argv[optind++]);
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183 printf ("\n");
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184 }
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185
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186 exit (0);
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187 }
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188
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189 #endif /* TEST */
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