comparison: util.c
util.c
- changeset 0
- 86b7f6f9c5c0
- child 5
- f878a9ffa3e0
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| -1:000000000000 | 0:86b7f6f9c5c0 |
|---|---|
| 1 /* | |
| 2 * libtu/util.c | |
| 3 * | |
| 4 * Copyright (c) Tuomo Valkonen 1999-2000. | |
| 5 * | |
| 6 * This file is distributed under the terms of the "Artistic License". | |
| 7 * See the included file LICENSE for details. | |
| 8 */ | |
| 9 | |
| 10 #include <stdarg.h> | |
| 11 #include <stdio.h> | |
| 12 #include <stdlib.h> | |
| 13 #include <string.h> | |
| 14 | |
| 15 #ifdef CONFIG_LOCALE | |
| 16 #include <libintl.h> | |
| 17 #endif | |
| 18 | |
| 19 #include "include/util.h" | |
| 20 #include "include/misc.h" | |
| 21 | |
| 22 | |
| 23 static const ProgInfo *proginfo=NULL; | |
| 24 static const char *progname=NULL; | |
| 25 | |
| 26 static void common_opts(int *argc, char *argv[]); | |
| 27 | |
| 28 | |
| 29 void libtu_init_argv0(const char *argv0, const ProgInfo *info) | |
| 30 { | |
| 31 progname=argv0; | |
| 32 proginfo=info; | |
| 33 | |
| 34 #ifdef CONFIG_LOCALE | |
| 35 textdomain(simple_basename(argv0)); | |
| 36 #endif | |
| 37 } | |
| 38 | |
| 39 | |
| 40 void libtu_init(int *argc, char *argv[], const ProgInfo *info) | |
| 41 { | |
| 42 libtu_init_argv0(argv[0], info); | |
| 43 | |
| 44 common_opts(argc, argv); | |
| 45 } | |
| 46 | |
| 47 | |
| 48 const char *prog_execname() | |
| 49 { | |
| 50 return progname; | |
| 51 } | |
| 52 | |
| 53 | |
| 54 const ProgInfo *prog_info() | |
| 55 { | |
| 56 return proginfo; | |
| 57 } | |
| 58 | |
| 59 | |
| 60 const char *prog_name() | |
| 61 { | |
| 62 return proginfo ? proginfo->name : NULL; | |
| 63 } | |
| 64 | |
| 65 | |
| 66 const char *prog_version() | |
| 67 { | |
| 68 return proginfo ? proginfo->version : NULL; | |
| 69 } | |
| 70 | |
| 71 | |
| 72 const char *prog_authors() | |
| 73 { | |
| 74 return proginfo ? proginfo->authors : NULL; | |
| 75 } | |
| 76 | |
| 77 | |
| 78 const char *prog_license() | |
| 79 { | |
| 80 return proginfo ? proginfo->license : NULL; | |
| 81 } | |
| 82 | |
| 83 | |
| 84 const char *prog_usage() | |
| 85 { | |
| 86 return proginfo ? proginfo->usage : NULL; | |
| 87 } | |
| 88 | |
| 89 | |
| 90 /* */ | |
| 91 | |
| 92 | |
| 93 static char *usages[][2]={ | |
| 94 {"--help", "Show this help\n"}, | |
| 95 {"--version", "Show program version\n"}, | |
| 96 {"--authors", "Show program authors\n"}, | |
| 97 {"--license", "Show program license\n"}, | |
| 98 {"--proginfo", "Show program info\n"}, | |
| 99 {NULL,} | |
| 100 }; | |
| 101 | |
| 102 | |
| 103 static void common_usage(size_t start, size_t len) | |
| 104 { | |
| 105 size_t l; | |
| 106 int i; | |
| 107 | |
| 108 for(i=0; usages[i][0]!=NULL; i++){ | |
| 109 | |
| 110 for(l=0; l<start; l++){ | |
| 111 putc(' ', stdout); | |
| 112 }; | |
| 113 | |
| 114 l=strlen(usages[i][0]); | |
| 115 writef(stdout, usages[i][0], l); | |
| 116 | |
| 117 do{ | |
| 118 putc(' ', stdout); | |
| 119 }while(++l<len-start); | |
| 120 | |
| 121 writef(stdout, usages[i][1], strlen(usages[i][1])); | |
| 122 } | |
| 123 } | |
| 124 | |
| 125 | |
| 126 static void show_usage(const char *p) | |
| 127 { | |
| 128 const char *tmp; | |
| 129 size_t len; | |
| 130 size_t start; | |
| 131 | |
| 132 do{ | |
| 133 tmp=strchr(p, '\n'); | |
| 134 | |
| 135 if(tmp==NULL){ | |
| 136 len=strlen(p); | |
| 137 if(len==0) | |
| 138 break; | |
| 139 }else{ | |
| 140 len=tmp-p; | |
| 141 } | |
| 142 | |
| 143 start=strspn(p, " "); | |
| 144 | |
| 145 if(p[start]=='$' && p[start+1]=='u'){ | |
| 146 tmp=prog_execname(); | |
| 147 if(start!=0) | |
| 148 writef(stdout, p, start); | |
| 149 printf(TR("Usage: %s"), tmp); | |
| 150 writef(stdout, p+start+2, len-start-2); | |
| 151 putc('\n', stdout); | |
| 152 }else if(p[start]=='$' && p[start+1]=='c'){ | |
| 153 common_usage(start, len); | |
| 154 }else{ | |
| 155 writef(stdout, p, len); | |
| 156 putc('\n', stdout); | |
| 157 } | |
| 158 | |
| 159 p+=len+1; | |
| 160 }while(*(p-1)!='\0'); | |
| 161 | |
| 162 } | |
| 163 | |
| 164 | |
| 165 static void common_opts(int *argcp, char *argv[]) | |
| 166 { | |
| 167 int argc=*argcp; | |
| 168 const char *p, *p2; | |
| 169 | |
| 170 argc--; | |
| 171 argv++; | |
| 172 | |
| 173 for(; argc>0; argc--, argv++){ | |
| 174 if(strcmp(*argv, "--help")==0){ | |
| 175 p=prog_usage(); | |
| 176 if(p==NULL){ | |
| 177 printf(TR("Usage: %s [options]\n" | |
| 178 "Where options are:\n\n"), prog_execname()); | |
| 179 common_usage(5, 20); | |
| 180 printf("\n"); | |
| 181 }else{ | |
| 182 show_usage(p); | |
| 183 } | |
| 184 }else if(strcmp(*argv, "--version")==0){ | |
| 185 p=prog_version(); | |
| 186 if(p==NULL) | |
| 187 printf(TR("No version available\n")); | |
| 188 else | |
| 189 printf("%s\n", p); | |
| 190 }else if(strcmp(*argv, "--authors")==0){ | |
| 191 p=prog_authors(); | |
| 192 if(p==NULL) | |
| 193 printf(TR("No author(s) info available\n")); | |
| 194 else | |
| 195 printf("%s\n", p); | |
| 196 }else if(strcmp(*argv, "--license")==0){ | |
| 197 p=prog_license(); | |
| 198 if(p==NULL) | |
| 199 printf(TR("No license available\n")); | |
| 200 else | |
| 201 printf("%s", TR(p)); | |
| 202 }else if(strcmp(*argv, "--proginfo")==0){ | |
| 203 p2=prog_version(); | |
| 204 p=prog_name(); | |
| 205 | |
| 206 if(p==NULL){ | |
| 207 p=prog_execname(); | |
| 208 | |
| 209 if(p==NULL){ | |
| 210 printf(TR("No name available\n")); | |
| 211 break; | |
| 212 } | |
| 213 } | |
| 214 | |
| 215 if(p2) | |
| 216 printf("%s v%s\n", p, p2); | |
| 217 else | |
| 218 printf("%s\n", p); | |
| 219 }else if(strcmp(*argv, "--")){ | |
| 220 break; | |
| 221 }else{ | |
| 222 continue; | |
| 223 } | |
| 224 | |
| 225 exit(EXIT_SUCCESS); | |
| 226 } | |
| 227 } |
