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 | #ifndef __STDC__ |
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26 | /* This is a separate conditional since some stdc systems |
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27 | reject `defined (const)'. */ |
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28 | #ifndef const |
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29 | #define const |
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30 | #endif |
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31 | #endif |
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32 | |
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33 | #include <stdio.h> |
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34 | |
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35 | /* Comment out all this code if we are using the GNU C Library, and are not |
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36 | actually compiling the library itself. This code is part of the GNU C |
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37 | Library, but also included in many other GNU distributions. Compiling |
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38 | and linking in this code is a waste when using the GNU C library |
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39 | (especially if it is a shared library). Rather than having every GNU |
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40 | program understand `configure --with-gnu-libc' and omit the object files, |
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41 | it is simpler to just do this in the source for each such file. */ |
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42 | |
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43 | #if defined (_LIBC) || !defined (__GNU_LIBRARY__) |
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44 | |
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45 | |
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46 | /* This needs to come after some library #include |
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47 | to get __GNU_LIBRARY__ defined. */ |
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48 | #ifdef __GNU_LIBRARY__ |
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49 | #include <stdlib.h> |
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50 | #else |
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51 | char *getenv (); |
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52 | #endif |
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53 | |
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54 | #ifndef NULL |
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55 | #define NULL 0 |
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56 | #endif |
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57 | |
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58 | int |
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59 | getopt_long (argc, argv, options, long_options, opt_index) |
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60 | int argc; |
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61 | char *const *argv; |
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62 | const char *options; |
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63 | const struct option *long_options; |
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64 | int *opt_index; |
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65 | { |
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66 | return _getopt_internal (argc, argv, options, long_options, opt_index, 0); |
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67 | } |
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68 | |
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69 | /* Like getopt_long, but '-' as well as '--' can indicate a long option. |
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70 | If an option that starts with '-' (not '--') doesn't match a long option, |
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71 | but does match a short option, it is parsed as a short option |
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72 | instead. */ |
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73 | |
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74 | int |
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75 | getopt_long_only (argc, argv, options, long_options, opt_index) |
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76 | int argc; |
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77 | char *const *argv; |
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78 | const char *options; |
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79 | const struct option *long_options; |
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80 | int *opt_index; |
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81 | { |
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82 | return _getopt_internal (argc, argv, options, long_options, opt_index, 1); |
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83 | } |
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84 | |
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85 | |
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86 | #endif /* _LIBC or not __GNU_LIBRARY__. */ |
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87 | |
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88 | #ifdef TEST |
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89 | |
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90 | #include <stdio.h> |
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91 | |
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92 | int |
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93 | main (argc, argv) |
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94 | int argc; |
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95 | char **argv; |
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96 | { |
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97 | int c; |
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98 | int digit_optind = 0; |
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99 | |
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100 | while (1) |
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101 | { |
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102 | int this_option_optind = optind ? optind : 1; |
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103 | int option_index = 0; |
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104 | static struct option long_options[] = |
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105 | { |
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106 | {"add", 1, 0, 0}, |
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107 | {"append", 0, 0, 0}, |
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108 | {"delete", 1, 0, 0}, |
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109 | {"verbose", 0, 0, 0}, |
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110 | {"create", 0, 0, 0}, |
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111 | {"file", 1, 0, 0}, |
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112 | {0, 0, 0, 0} |
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113 | }; |
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114 | |
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115 | c = getopt_long (argc, argv, "abc:d:0123456789", |
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116 | long_options, &option_index); |
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117 | if (c == EOF) |
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118 | break; |
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119 | |
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120 | switch (c) |
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121 | { |
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122 | case 0: |
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123 | printf ("option %s", long_options[option_index].name); |
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124 | if (optarg) |
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125 | printf (" with arg %s", optarg); |
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126 | printf ("\n"); |
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127 | break; |
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128 | |
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129 | case '0': |
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130 | case '1': |
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131 | case '2': |
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132 | case '3': |
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133 | case '4': |
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134 | case '5': |
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135 | case '6': |
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136 | case '7': |
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137 | case '8': |
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138 | case '9': |
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139 | if (digit_optind != 0 && digit_optind != this_option_optind) |
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140 | printf ("digits occur in two different argv-elements.\n"); |
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141 | digit_optind = this_option_optind; |
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142 | printf ("option %c\n", c); |
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143 | break; |
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144 | |
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145 | case 'a': |
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146 | printf ("option a\n"); |
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147 | break; |
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148 | |
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149 | case 'b': |
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150 | printf ("option b\n"); |
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151 | break; |
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152 | |
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153 | case 'c': |
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154 | printf ("option c with value `%s'\n", optarg); |
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155 | break; |
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156 | |
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157 | case 'd': |
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158 | printf ("option d with value `%s'\n", optarg); |
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159 | break; |
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160 | |
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161 | case '?': |
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162 | break; |
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163 | |
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164 | default: |
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165 | printf ("?? getopt returned character code 0%o ??\n", c); |
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166 | } |
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167 | } |
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168 | |
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169 | if (optind < argc) |
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170 | { |
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171 | printf ("non-option ARGV-elements: "); |
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172 | while (optind < argc) |
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173 | printf ("%s ", argv[optind++]); |
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174 | printf ("\n"); |
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175 | } |
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176 | |
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177 | exit (0); |
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178 | } |
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179 | |
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180 | #endif /* TEST */ |
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