1/* 2 * Generic Options Support Header File 3 * 4 * Copyright (c) 2001 Stanislav Karchebny <berk@madfire.net> 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND OTHER CONTRIBUTORS ``AS IS'' 16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR OTHER CONTRIBUTORS BE 19 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 25 * POSSIBILITY OF SUCH DAMAGE. 26 */ 27#ifndef TASM_OPTIONS_H 28#define TASM_OPTIONS_H 29 30/* an option structure 31 * operate on either -sopt, --lopt, -sopt <val> or --lopt=<val> 32 */ 33typedef struct opt_option_s 34{ 35 /* option */ 36 const char *opt; 37 38 /* !=0 if option requires parameter, 0 if not */ 39 int takes_param; 40 41 int (*handler) (char *cmd, /*@null@*/ char *param, int extra); 42 int extra; /* extra value for handler */ 43 44 /* description to use in help_msg() */ 45 /*@observer@*/ const char *description; 46 47 /* optional description for the param taken (NULL if not present) */ 48 /* (short - will be printed after option sopt/lopt) */ 49 /*@observer@*/ /*@null@*/ const char *param_desc; 50} opt_option; 51 52/* handle everything that is not an option */ 53int not_an_option_handler(char *param); 54 55/* parse command line calling handlers when appropriate 56 * argc, argv - pass directly from main(argc,argv) 57 * options - array of options 58 * nopts - options count 59 */ 60int parse_cmdline(int argc, char **argv, opt_option *options, size_t nopts, 61 void (*print_error) (const char *fmt, ...)); 62 63/* display help message msg followed by list of options in options and followed 64 * by tail 65 */ 66void help_msg(const char *msg, const char *tail, opt_option *options, 67 size_t nopts); 68 69#endif 70