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view lwlib/lw_cmdline.h @ 370:8764142b3192
Convert internal error/warning handling framework to a new unified system
Replace the ad hoc error and warning handling with a new system that
codifies the errors with specific codes. This makes it possible in the
future for error numbers to be used for testing and other purposes. It also
makes sure the error strings themselves are consistent.
Thanks to Erik G <erik@6809.org> for the patch.
author | William Astle <lost@l-w.ca> |
---|---|
date | Mon, 22 Jun 2015 18:49:38 -0600 |
parents | 8ae2670377ca |
children | 8e25147c2aa8 |
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/* lw_cmdline.h Copyright © 2010 William Astle This file is part of LWTOOLS. LWTOOLS is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ /* This argument parser is patterned after argp from the gnu C library but has much of the functionality removed. It is provided here because not every system has glibc. Most notably, it does not support option groups or i18n. */ #ifndef ___lw_cmdline_h_seen___ #define ___lw_cmdline_h_seen___ struct lw_cmdline_options { char *name; int key; char *arg; int flags; char *doc; }; enum { lw_cmdline_opt_optional = 1, lw_cmdline_opt_hidden = 2, /* lw_cmdline_opt_alias = 4,*/ /* lw_cmdline_opt_nousage = 0x10,*/ lw_cmdline_opt_doc = 0x80 }; enum { lw_cmdline_err_unknown = -1 }; enum { lw_cmdline_key_arg = -1, lw_cmdline_key_end = 0 }; struct lw_cmdline_parser { struct lw_cmdline_options *options; int (*parser)(int key, char *arg, void *input); char *args_doc; char *doc; char *program_version; }; #ifdef ___lw_cmdline_c_seen___ #else /* def ___lw_cmdline_c_seen___ */ extern int lw_cmdline_parse(struct lw_cmdline_parser *parser, int argc, char **argv, unsigned flags, int *arg_index, void *input); #endif /* def ___lw_cmdline_c_seen___ */ #endif /* ___lw_cmdline_h_seen___ */