mirror of
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137 lines
4.6 KiB
C
137 lines
4.6 KiB
C
/* Getopt for Microsoft C
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This code is a modification of the Free Software Foundation, Inc.
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Getopt library for parsing command line argument the purpose was
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to provide a Microsoft Visual C friendly derivative. This code
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provides functionality for both Unicode and Multibyte builds.
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Date: 02/03/2011 - Ludvik Jerabek - Initial Release
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Version: 1.0
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Comment: Supports getopt, getopt_long, and getopt_long_only
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and POSIXLY_CORRECT environment flag
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License: LGPL
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Revisions:
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02/03/2011 - Ludvik Jerabek - Initial Release
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02/20/2011 - Ludvik Jerabek - Fixed compiler warnings at Level 4
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07/05/2011 - Ludvik Jerabek - Added no_argument, required_argument, optional_argument defs
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08/03/2011 - Ludvik Jerabek - Fixed non-argument runtime bug which caused runtime exception
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08/09/2011 - Ludvik Jerabek - Added code to export functions for DLL and LIB
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02/15/2012 - Ludvik Jerabek - Fixed _GETOPT_THROW definition missing in implementation file
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08/01/2012 - Ludvik Jerabek - Created separate functions for char and wchar_t characters so single dll can do both unicode and ansi
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10/15/2012 - Ludvik Jerabek - Modified to match latest GNU features
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06/19/2015 - Ludvik Jerabek - Fixed maximum option limitation caused by option_a (255) and option_w (65535) structure val variable
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**DISCLAIMER**
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THIS MATERIAL IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND,
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EITHER EXPRESS OR IMPLIED, INCLUDING, BUT Not LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
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PURPOSE, OR NON-INFRINGEMENT. SOME JURISDICTIONS DO NOT ALLOW THE
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EXCLUSION OF IMPLIED WARRANTIES, SO THE ABOVE EXCLUSION MAY NOT
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APPLY TO YOU. IN NO EVENT WILL I BE LIABLE TO ANY PARTY FOR ANY
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DIRECT, INDIRECT, SPECIAL OR OTHER CONSEQUENTIAL DAMAGES FOR ANY
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USE OF THIS MATERIAL INCLUDING, WITHOUT LIMITATION, ANY LOST
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PROFITS, BUSINESS INTERRUPTION, LOSS OF PROGRAMS OR OTHER DATA ON
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YOUR INFORMATION HANDLING SYSTEM OR OTHERWISE, EVEN If WE ARE
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EXPRESSLY ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
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*/
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#ifndef __GETOPT_H_
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#define __GETOPT_H_
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#ifdef _GETOPT_API
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#undef _GETOPT_API
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#endif
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#if defined(EXPORTS_GETOPT) && defined(STATIC_GETOPT)
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#error "The preprocessor definitions of EXPORTS_GETOPT and STATIC_GETOPT can only be used individually"
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#elif defined(STATIC_GETOPT)
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#pragma message("Warning static builds of getopt violate the Lesser GNU Public License")
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#define _GETOPT_API
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#elif defined(EXPORTS_GETOPT)
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#pragma message("Exporting getopt library")
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#define _GETOPT_API __declspec(dllexport)
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#else
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#pragma message("Importing getopt library")
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#define _GETOPT_API __declspec(dllimport)
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#endif
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// Change behavior for C\C++
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#ifdef __cplusplus
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#define _BEGIN_EXTERN_C extern "C" {
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#define _END_EXTERN_C }
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#define _GETOPT_THROW throw()
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#else
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#define _BEGIN_EXTERN_C
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#define _END_EXTERN_C
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#define _GETOPT_THROW
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#endif
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// Standard GNU options
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#define null_argument 0
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#define no_argument 0
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#define required_argument 1
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#define optional_argument 2
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// Shorter Options
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#define ARG_NULL 0
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#define ARG_NONE 0
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#define ARG_REQ 1
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#define ARG_OPT 2
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#include <string.h>
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#include <wchar.h>
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_BEGIN_EXTERN_C
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extern _GETOPT_API int optind;
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extern _GETOPT_API int opterr;
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extern _GETOPT_API int optopt;
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// Ansi
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struct option_a
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{
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const char* name;
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int has_arg;
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int *flag;
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int val;
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};
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extern _GETOPT_API char *optarg_a;
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extern _GETOPT_API int getopt_a(int argc, char *const *argv, const char *optstring) _GETOPT_THROW;
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extern _GETOPT_API int getopt_long_a(int argc, char *const *argv, const char *options, const struct option_a *long_options, int *opt_index) _GETOPT_THROW;
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extern _GETOPT_API int getopt_long_only_a(int argc, char *const *argv, const char *options, const struct option_a *long_options, int *opt_index) _GETOPT_THROW;
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// Unicode
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struct option_w
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{
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const wchar_t* name;
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int has_arg;
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int *flag;
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int val;
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};
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extern _GETOPT_API wchar_t *optarg_w;
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extern _GETOPT_API int getopt_w(int argc, wchar_t *const *argv, const wchar_t *optstring) _GETOPT_THROW;
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extern _GETOPT_API int getopt_long_w(int argc, wchar_t *const *argv, const wchar_t *options, const struct option_w *long_options, int *opt_index) _GETOPT_THROW;
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extern _GETOPT_API int getopt_long_only_w(int argc, wchar_t *const *argv, const wchar_t *options, const struct option_w *long_options, int *opt_index) _GETOPT_THROW;
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_END_EXTERN_C
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#undef _BEGIN_EXTERN_C
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#undef _END_EXTERN_C
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#undef _GETOPT_THROW
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#undef _GETOPT_API
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#ifdef _UNICODE
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#define getopt getopt_w
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#define getopt_long getopt_long_w
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#define getopt_long_only getopt_long_only_w
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#define option option_w
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#define optarg optarg_w
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#else
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#define getopt getopt_a
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#define getopt_long getopt_long_a
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#define getopt_long_only getopt_long_only_a
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#define option option_a
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#define optarg optarg_a
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#endif
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#endif // __GETOPT_H_
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