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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 14 | pmbaty | 1 | /* |
| 2 | * Copyright 2008-2009 Katholieke Universiteit Leuven |
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| 3 | * |
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| 4 | * Use of this software is governed by the MIT license |
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| 5 | * |
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| 6 | * Written by Sven Verdoolaege, K.U.Leuven, Departement |
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| 7 | * Computerwetenschappen, Celestijnenlaan 200A, B-3001 Leuven, Belgium |
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| 8 | */ |
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| 9 | |||
| 10 | #ifndef ISL_ARG_H |
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| 11 | #define ISL_ARG_H |
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| 12 | |||
| 13 | #include <stddef.h> |
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| 14 | #include <stdlib.h> |
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| 15 | |||
| 16 | #if defined(__cplusplus) |
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| 17 | extern "C" { |
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| 18 | #endif |
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| 19 | |||
| 20 | struct isl_arg_choice { |
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| 21 | const char *name; |
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| 22 | unsigned value; |
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| 23 | }; |
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| 24 | |||
| 25 | struct isl_arg_flags { |
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| 26 | const char *name; |
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| 27 | unsigned mask; |
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| 28 | unsigned value; |
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| 29 | }; |
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| 30 | |||
| 31 | enum isl_arg_type { |
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| 32 | isl_arg_end, |
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| 33 | isl_arg_alias, |
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| 34 | isl_arg_arg, |
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| 35 | isl_arg_bool, |
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| 36 | isl_arg_child, |
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| 37 | isl_arg_choice, |
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| 38 | isl_arg_flags, |
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| 39 | isl_arg_footer, |
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| 40 | isl_arg_int, |
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| 41 | isl_arg_user, |
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| 42 | isl_arg_long, |
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| 43 | isl_arg_ulong, |
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| 44 | isl_arg_str, |
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| 45 | isl_arg_str_list, |
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| 46 | isl_arg_version |
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| 47 | }; |
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| 48 | |||
| 49 | struct isl_args; |
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| 50 | |||
| 51 | struct isl_arg { |
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| 52 | enum isl_arg_type type; |
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| 53 | char short_name; |
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| 54 | const char *long_name; |
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| 55 | const char *argument_name; |
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| 56 | #define ISL_ARG_OFFSET_NONE ((size_t) -1) |
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| 57 | size_t offset; |
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| 58 | const char *help_msg; |
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| 59 | #define ISL_ARG_SINGLE_DASH (1 << 0) |
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| 60 | #define ISL_ARG_BOOL_ARG (1 << 1) |
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| 61 | #define ISL_ARG_HIDDEN (1 << 2) |
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| 62 | unsigned flags; |
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| 63 | union { |
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| 64 | struct { |
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| 65 | struct isl_arg_choice *choice; |
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| 66 | unsigned default_value; |
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| 67 | unsigned default_selected; |
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| 68 | int (*set)(void *opt, unsigned val); |
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| 69 | } choice; |
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| 70 | struct { |
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| 71 | struct isl_arg_flags *flags; |
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| 72 | unsigned default_value; |
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| 73 | } flags; |
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| 74 | struct { |
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| 75 | unsigned default_value; |
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| 76 | int (*set)(void *opt, unsigned val); |
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| 77 | } b; |
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| 78 | struct { |
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| 79 | int default_value; |
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| 80 | } i; |
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| 81 | struct { |
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| 82 | long default_value; |
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| 83 | long default_selected; |
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| 84 | int (*set)(void *opt, long val); |
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| 85 | } l; |
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| 86 | struct { |
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| 87 | unsigned long default_value; |
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| 88 | } ul; |
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| 89 | struct { |
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| 90 | const char *default_value; |
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| 91 | } str; |
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| 92 | struct { |
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| 93 | size_t offset_n; |
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| 94 | } str_list; |
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| 95 | struct { |
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| 96 | struct isl_args *child; |
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| 97 | } child; |
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| 98 | struct { |
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| 99 | void (*print_version)(void); |
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| 100 | } version; |
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| 101 | struct { |
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| 102 | int (*init)(void*); |
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| 103 | void (*clear)(void*); |
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| 104 | } user; |
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| 105 | } u; |
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| 106 | }; |
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| 107 | |||
| 108 | struct isl_args { |
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| 109 | size_t options_size; |
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| 110 | struct isl_arg *args; |
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| 111 | }; |
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| 112 | |||
| 113 | #define ISL_ARGS_START(s,name) \ |
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| 114 | struct isl_arg name ## LIST[]; \ |
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| 115 | struct isl_args name = { sizeof(s), name ## LIST }; \ |
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| 116 | struct isl_arg name ## LIST[] = { |
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| 117 | #define ISL_ARGS_END \ |
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| 118 | { isl_arg_end } }; |
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| 119 | |||
| 120 | #define ISL_ARG_ALIAS(l) { \ |
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| 121 | .type = isl_arg_alias, \ |
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| 122 | .long_name = l, \ |
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| 123 | }, |
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| 124 | #define ISL_ARG_ARG(st,f,a,d) { \ |
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| 125 | .type = isl_arg_arg, \ |
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| 126 | .argument_name = a, \ |
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| 127 | .offset = offsetof(st, f), \ |
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| 128 | .u = { .str = { .default_value = d } } \ |
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| 129 | }, |
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| 130 | #define ISL_ARG_FOOTER(h) { \ |
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| 131 | .type = isl_arg_footer, \ |
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| 132 | .help_msg = h, \ |
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| 133 | }, |
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| 134 | #define ISL_ARG_CHOICE(st,f,s,l,c,d,h) { \ |
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| 135 | .type = isl_arg_choice, \ |
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| 136 | .short_name = s, \ |
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| 137 | .long_name = l, \ |
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| 138 | .offset = offsetof(st, f), \ |
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| 139 | .help_msg = h, \ |
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| 140 | .u = { .choice = { .choice = c, .default_value = d, \ |
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| 141 | .default_selected = d, .set = NULL } } \ |
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| 142 | }, |
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| 143 | #define ISL_ARG_OPT_CHOICE(st,f,s,l,c,d,ds,h) { \ |
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| 144 | .type = isl_arg_choice, \ |
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| 145 | .short_name = s, \ |
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| 146 | .long_name = l, \ |
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| 147 | .offset = offsetof(st, f), \ |
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| 148 | .help_msg = h, \ |
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| 149 | .u = { .choice = { .choice = c, .default_value = d, \ |
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| 150 | .default_selected = ds, .set = NULL } } \ |
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| 151 | }, |
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| 152 | #define ISL_ARG_PHANTOM_USER_CHOICE_F(s,l,c,setter,d,h,fl) { \ |
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| 153 | .type = isl_arg_choice, \ |
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| 154 | .short_name = s, \ |
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| 155 | .long_name = l, \ |
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| 156 | .offset = ISL_ARG_OFFSET_NONE, \ |
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| 157 | .help_msg = h, \ |
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| 158 | .flags = fl, \ |
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| 159 | .u = { .choice = { .choice = c, .default_value = d, \ |
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| 160 | .default_selected = d, .set = setter } } \ |
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| 161 | }, |
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| 162 | #define ISL_ARG_USER_OPT_CHOICE(st,f,s,l,c,setter,d,ds,h) { \ |
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| 163 | .type = isl_arg_choice, \ |
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| 164 | .short_name = s, \ |
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| 165 | .long_name = l, \ |
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| 166 | .offset = offsetof(st, f), \ |
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| 167 | .help_msg = h, \ |
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| 168 | .u = { .choice = { .choice = c, .default_value = d, \ |
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| 169 | .default_selected = ds, .set = setter } } \ |
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| 170 | }, |
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| 171 | #define _ISL_ARG_BOOL_F(o,s,l,setter,d,h,fl) { \ |
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| 172 | .type = isl_arg_bool, \ |
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| 173 | .short_name = s, \ |
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| 174 | .long_name = l, \ |
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| 175 | .offset = o, \ |
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| 176 | .help_msg = h, \ |
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| 177 | .flags = fl, \ |
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| 178 | .u = { .b = { .default_value = d, .set = setter } } \ |
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| 179 | }, |
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| 180 | #define ISL_ARG_BOOL_F(st,f,s,l,d,h,fl) \ |
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| 181 | _ISL_ARG_BOOL_F(offsetof(st, f),s,l,NULL,d,h,fl) |
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| 182 | #define ISL_ARG_BOOL(st,f,s,l,d,h) \ |
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| 183 | ISL_ARG_BOOL_F(st,f,s,l,d,h,0) |
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| 184 | #define ISL_ARG_PHANTOM_BOOL_F(s,l,setter,h,fl) \ |
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| 185 | _ISL_ARG_BOOL_F(ISL_ARG_OFFSET_NONE,s,l,setter,0,h,fl) |
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| 186 | #define ISL_ARG_PHANTOM_BOOL(s,l,setter,h) \ |
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| 187 | ISL_ARG_PHANTOM_BOOL_F(s,l,setter,h,0) |
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| 188 | #define ISL_ARG_INT_F(st,f,s,l,a,d,h,fl) { \ |
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| 189 | .type = isl_arg_int, \ |
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| 190 | .short_name = s, \ |
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| 191 | .long_name = l, \ |
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| 192 | .argument_name = a, \ |
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| 193 | .offset = offsetof(st, f), \ |
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| 194 | .help_msg = h, \ |
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| 195 | .flags = fl, \ |
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| 196 | .u = { .i = { .default_value = d } } \ |
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| 197 | }, |
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| 198 | #define ISL_ARG_INT(st,f,s,l,a,d,h) \ |
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| 199 | ISL_ARG_INT_F(st,f,s,l,a,d,h,0) |
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| 200 | #define ISL_ARG_LONG(st,f,s,lo,d,h) { \ |
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| 201 | .type = isl_arg_long, \ |
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| 202 | .short_name = s, \ |
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| 203 | .long_name = lo, \ |
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| 204 | .offset = offsetof(st, f), \ |
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| 205 | .help_msg = h, \ |
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| 206 | .u = { .l = { .default_value = d, .default_selected = d, \ |
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| 207 | .set = NULL } } \ |
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| 208 | }, |
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| 209 | #define ISL_ARG_USER_LONG(st,f,s,lo,setter,d,h) { \ |
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| 210 | .type = isl_arg_long, \ |
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| 211 | .short_name = s, \ |
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| 212 | .long_name = lo, \ |
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| 213 | .offset = offsetof(st, f), \ |
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| 214 | .help_msg = h, \ |
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| 215 | .u = { .l = { .default_value = d, .default_selected = d, \ |
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| 216 | .set = setter } } \ |
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| 217 | }, |
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| 218 | #define ISL_ARG_OPT_LONG(st,f,s,lo,d,ds,h) { \ |
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| 219 | .type = isl_arg_long, \ |
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| 220 | .short_name = s, \ |
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| 221 | .long_name = lo, \ |
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| 222 | .offset = offsetof(st, f), \ |
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| 223 | .help_msg = h, \ |
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| 224 | .u = { .l = { .default_value = d, .default_selected = ds, \ |
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| 225 | .set = NULL } } \ |
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| 226 | }, |
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| 227 | #define ISL_ARG_ULONG(st,f,s,l,d,h) { \ |
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| 228 | .type = isl_arg_ulong, \ |
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| 229 | .short_name = s, \ |
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| 230 | .long_name = l, \ |
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| 231 | .offset = offsetof(st, f), \ |
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| 232 | .help_msg = h, \ |
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| 233 | .u = { .ul = { .default_value = d } } \ |
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| 234 | }, |
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| 235 | #define ISL_ARG_STR_F(st,f,s,l,a,d,h,fl) { \ |
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| 236 | .type = isl_arg_str, \ |
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| 237 | .short_name = s, \ |
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| 238 | .long_name = l, \ |
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| 239 | .argument_name = a, \ |
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| 240 | .offset = offsetof(st, f), \ |
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| 241 | .help_msg = h, \ |
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| 242 | .flags = fl, \ |
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| 243 | .u = { .str = { .default_value = d } } \ |
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| 244 | }, |
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| 245 | #define ISL_ARG_STR(st,f,s,l,a,d,h) \ |
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| 246 | ISL_ARG_STR_F(st,f,s,l,a,d,h,0) |
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| 247 | #define ISL_ARG_STR_LIST(st,f_n,f_l,s,l,a,h) { \ |
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| 248 | .type = isl_arg_str_list, \ |
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| 249 | .short_name = s, \ |
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| 250 | .long_name = l, \ |
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| 251 | .argument_name = a, \ |
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| 252 | .offset = offsetof(st, f_l), \ |
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| 253 | .help_msg = h, \ |
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| 254 | .u = { .str_list = { .offset_n = offsetof(st, f_n) } } \ |
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| 255 | }, |
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| 256 | #define _ISL_ARG_CHILD(o,l,c,h,fl) { \ |
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| 257 | .type = isl_arg_child, \ |
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| 258 | .long_name = l, \ |
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| 259 | .offset = o, \ |
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| 260 | .help_msg = h, \ |
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| 261 | .flags = fl, \ |
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| 262 | .u = { .child = { .child = c } } \ |
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| 263 | }, |
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| 264 | #define ISL_ARG_CHILD(st,f,l,c,h) \ |
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| 265 | _ISL_ARG_CHILD(offsetof(st, f),l,c,h,0) |
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| 266 | #define ISL_ARG_GROUP_F(l,c,h,fl) \ |
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| 267 | _ISL_ARG_CHILD(ISL_ARG_OFFSET_NONE,l,c,h,fl) |
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| 268 | #define ISL_ARG_GROUP(l,c,h) \ |
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| 269 | ISL_ARG_GROUP_F(l,c,h,0) |
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| 270 | #define ISL_ARG_FLAGS(st,f,s,l,c,d,h) { \ |
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| 271 | .type = isl_arg_flags, \ |
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| 272 | .short_name = s, \ |
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| 273 | .long_name = l, \ |
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| 274 | .offset = offsetof(st, f), \ |
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| 275 | .help_msg = h, \ |
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| 276 | .u = { .flags = { .flags = c, .default_value = d } } \ |
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| 277 | }, |
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| 278 | #define ISL_ARG_USER(st,f,i,c) { \ |
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| 279 | .type = isl_arg_user, \ |
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| 280 | .offset = offsetof(st, f), \ |
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| 281 | .u = { .user = { .init = i, .clear = c} } \ |
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| 282 | }, |
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| 283 | #define ISL_ARG_VERSION(print) { \ |
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| 284 | .type = isl_arg_version, \ |
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| 285 | .u = { .version = { .print_version = print } } \ |
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| 286 | }, |
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| 287 | |||
| 288 | #define ISL_ARG_ALL (1 << 0) |
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| 289 | #define ISL_ARG_SKIP_HELP (1 << 1) |
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| 290 | |||
| 291 | void isl_args_set_defaults(struct isl_args *args, void *opt); |
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| 292 | void isl_args_free(struct isl_args *args, void *opt); |
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| 293 | int isl_args_parse(struct isl_args *args, int argc, char **argv, void *opt, |
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| 294 | unsigned flags); |
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| 295 | |||
| 296 | #define ISL_ARG_DECL(prefix,st,args) \ |
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| 297 | extern struct isl_args args; \ |
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| 298 | st *prefix ## _new_with_defaults(void); \ |
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| 299 | void prefix ## _free(st *opt); \ |
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| 300 | int prefix ## _parse(st *opt, int argc, char **argv, unsigned flags); |
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| 301 | |||
| 302 | #define ISL_ARG_DEF(prefix,st,args) \ |
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| 303 | st *prefix ## _new_with_defaults() \ |
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| 304 | { \ |
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| 305 | st *opt = (st *)calloc(1, sizeof(st)); \ |
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| 306 | if (opt) \ |
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| 307 | isl_args_set_defaults(&(args), opt); \ |
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| 308 | return opt; \ |
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| 309 | } \ |
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| 310 | \ |
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| 311 | void prefix ## _free(st *opt) \ |
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| 312 | { \ |
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| 313 | isl_args_free(&(args), opt); \ |
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| 314 | } \ |
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| 315 | \ |
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| 316 | int prefix ## _parse(st *opt, int argc, char **argv, unsigned flags) \ |
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| 317 | { \ |
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| 318 | return isl_args_parse(&(args), argc, argv, opt, flags); \ |
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| 319 | } |
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| 320 | |||
| 321 | #if defined(__cplusplus) |
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| 322 | } |
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| 323 | #endif |
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| 324 | |||
| 325 | #endif |