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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 |
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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; if not, write to the Free Software |
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17 Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ |
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18 |
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19 #ifdef HAVE_CONFIG_H |
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20 #include "config.h" |
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21 #endif |
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22 |
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23 #include "getopt.h" |
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24 |
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25 #if !__STDC__ && !defined(const) && IN_GCC |
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26 #define const |
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27 #endif |
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28 |
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29 #include <stdio.h> |
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30 |
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31 /* Comment out all this code if we are using the GNU C Library, and are not |
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32 actually compiling the library itself. This code is part of the GNU C |
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33 Library, but also included in many other GNU distributions. Compiling |
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34 and linking in this code is a waste when using the GNU C library |
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35 (especially if it is a shared library). Rather than having every GNU |
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36 program understand `configure --with-gnu-libc' and omit the object files, |
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37 it is simpler to just do this in the source for each such file. */ |
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38 |
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39 #if defined (_LIBC) || !defined (__GNU_LIBRARY__) |
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40 |
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41 |
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42 /* This needs to come after some library #include |
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43 to get __GNU_LIBRARY__ defined. */ |
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44 #ifdef __GNU_LIBRARY__ |
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45 #include <stdlib.h> |
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46 #else |
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47 char *getenv (); |
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48 #endif |
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49 |
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50 #ifndef NULL |
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51 #define NULL 0 |
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52 #endif |
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53 |
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54 int |
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55 getopt_long (argc, argv, options, long_options, opt_index) |
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56 int argc; |
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57 char *const *argv; |
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58 const char *options; |
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59 const struct option *long_options; |
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60 int *opt_index; |
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61 { |
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62 return _getopt_internal (argc, argv, options, long_options, opt_index, 0); |
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63 } |
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64 |
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65 /* Like getopt_long, but '-' as well as '--' can indicate a long option. |
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66 If an option that starts with '-' (not '--') doesn't match a long option, |
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67 but does match a short option, it is parsed as a short option |
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68 instead. */ |
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69 |
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70 int |
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71 getopt_long_only (argc, argv, options, long_options, opt_index) |
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72 int argc; |
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73 char *const *argv; |
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74 const char *options; |
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75 const struct option *long_options; |
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76 int *opt_index; |
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77 { |
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78 return _getopt_internal (argc, argv, options, long_options, opt_index, 1); |
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79 } |
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80 |
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81 |
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82 #endif /* _LIBC or not __GNU_LIBRARY__. */ |
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83 |
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84 #ifdef TEST |
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85 |
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86 #include <stdio.h> |
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87 |
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88 int |
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89 main (argc, argv) |
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90 int argc; |
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91 char **argv; |
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92 { |
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93 int c; |
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94 int digit_optind = 0; |
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95 |
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96 while (1) |
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97 { |
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98 int this_option_optind = optind ? optind : 1; |
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99 int option_index = 0; |
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100 static struct option long_options[] = |
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101 { |
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102 {"add", 1, 0, 0}, |
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103 {"append", 0, 0, 0}, |
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104 {"delete", 1, 0, 0}, |
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105 {"verbose", 0, 0, 0}, |
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106 {"create", 0, 0, 0}, |
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107 {"file", 1, 0, 0}, |
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108 {0, 0, 0, 0} |
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109 }; |
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110 |
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111 c = getopt_long (argc, argv, "abc:d:0123456789", |
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112 long_options, &option_index); |
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113 if (c == EOF) |
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114 break; |
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115 |
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116 switch (c) |
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117 { |
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118 case 0: |
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119 printf ("option %s", long_options[option_index].name); |
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120 if (optarg) |
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121 printf (" with arg %s", optarg); |
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122 printf ("\n"); |
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123 break; |
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124 |
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125 case '0': |
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126 case '1': |
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127 case '2': |
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128 case '3': |
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129 case '4': |
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130 case '5': |
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131 case '6': |
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132 case '7': |
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133 case '8': |
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134 case '9': |
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135 if (digit_optind != 0 && digit_optind != this_option_optind) |
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136 printf ("digits occur in two different argv-elements.\n"); |
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137 digit_optind = this_option_optind; |
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138 printf ("option %c\n", c); |
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139 break; |
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140 |
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141 case 'a': |
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142 printf ("option a\n"); |
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143 break; |
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144 |
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145 case 'b': |
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146 printf ("option b\n"); |
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147 break; |
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148 |
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149 case 'c': |
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150 printf ("option c with value `%s'\n", optarg); |
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151 break; |
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152 |
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153 case 'd': |
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154 printf ("option d with value `%s'\n", optarg); |
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155 break; |
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156 |
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157 case '?': |
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158 break; |
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159 |
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160 default: |
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161 printf ("?? getopt returned character code 0%o ??\n", c); |
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162 } |
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163 } |
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164 |
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165 if (optind < argc) |
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166 { |
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167 printf ("non-option ARGV-elements: "); |
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168 while (optind < argc) |
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169 printf ("%s ", argv[optind++]); |
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170 printf ("\n"); |
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171 } |
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172 |
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173 exit (0); |
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174 } |
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175 |
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176 #endif /* TEST */ |
