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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-14 12:58:48 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-14 12:58:48 +0000 |
commit | 247138fa14b9e3d208468090b7add448837e0026 (patch) | |
tree | 71fd5d2bfecb19cbc84572e9759020804a923df9 /carg_parser.h | |
parent | Initial commit. (diff) | |
download | lzlib-247138fa14b9e3d208468090b7add448837e0026.tar.xz lzlib-247138fa14b9e3d208468090b7add448837e0026.zip |
Adding upstream version 1.14.upstream/1.14
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'carg_parser.h')
-rw-r--r-- | carg_parser.h | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/carg_parser.h b/carg_parser.h new file mode 100644 index 0000000..69ce271 --- /dev/null +++ b/carg_parser.h @@ -0,0 +1,97 @@ +/* Arg_parser - POSIX/GNU command-line argument parser. (C version) + Copyright (C) 2006-2024 Antonio Diaz Diaz. + + This library is free software. Redistribution and use in source and + binary forms, with or without modification, are permitted provided + that the following conditions are met: + + 1. Redistributions of source code must retain the above copyright + notice, this list of conditions, and the following disclaimer. + + 2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions, and the following disclaimer in the + documentation and/or other materials provided with the distribution. + + This library 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. +*/ + +/* Arg_parser reads the arguments in 'argv' and creates a number of + option codes, option arguments, and non-option arguments. + + In case of error, 'ap_error' returns a non-null pointer to an error + message. + + 'options' is an array of 'struct ap_Option' terminated by an element + containing a code which is zero. A null long_name means a short-only + option. A code value outside the unsigned char range means a long-only + option. + + Arg_parser normally makes it appear as if all the option arguments + were specified before all the non-option arguments for the purposes + of parsing, even if the user of your program intermixed option and + non-option arguments. If you want the arguments in the exact order + the user typed them, call 'ap_init' with 'in_order' = true. + + The argument '--' terminates all options; any following arguments are + treated as non-option arguments, even if they begin with a hyphen. + + The syntax for optional option arguments is '-<short_option><argument>' + (without whitespace), or '--<long_option>=<argument>'. +*/ + +#ifdef __cplusplus +extern "C" { +#endif + +enum ap_Has_arg { ap_no, ap_yes, ap_maybe }; + +struct ap_Option + { + int code; /* Short option letter or code ( code != 0 ) */ + const char * long_name; /* Long option name (maybe null) */ + enum ap_Has_arg has_arg; + }; + + +struct ap_Record + { + int code; + char * parsed_name; + char * argument; + }; + + +struct Arg_parser + { + struct ap_Record * data; + char * error; + int data_size; + int error_size; + }; + + +char ap_init( struct Arg_parser * const ap, + const int argc, const char * const argv[], + const struct ap_Option options[], const char in_order ); + +void ap_free( struct Arg_parser * const ap ); + +const char * ap_error( const struct Arg_parser * const ap ); + +/* The number of arguments parsed. May be different from argc. */ +int ap_arguments( const struct Arg_parser * const ap ); + +/* If ap_code( i ) is 0, ap_argument( i ) is a non-option. + Else ap_argument( i ) is the option's argument (or empty). */ +int ap_code( const struct Arg_parser * const ap, const int i ); + +/* Full name of the option parsed (short or long). */ +const char * ap_parsed_name( const struct Arg_parser * const ap, const int i ); + +const char * ap_argument( const struct Arg_parser * const ap, const int i ); + +#ifdef __cplusplus +} +#endif |