src/utils/wingetopt.h

/* Getopt for Microsoft C
   This code is a modification of the Free Software Foundation, Inc.
   Getopt library for parsing command line argument the purpose was
   to provide a Microsoft Visual C friendly derivative. This code
   provides functionality for both Unicode and Multibyte builds.

   Date: 02/03/2011 - Ludvik Jerabek - Initial Release
   Version: 1.0
   Comment: Supports getopt, getopt_long, and getopt_long_only
   and POSIXLY_CORRECT environment flag
   License: LGPL

   Revisions:

   02/03/2011 - Ludvik Jerabek - Initial Release
   02/20/2011 - Ludvik Jerabek - Fixed compiler warnings at Level 4
   07/05/2011 - Ludvik Jerabek - Added no_argument, required_argument, optional_argument defs
   08/03/2011 - Ludvik Jerabek - Fixed non-argument runtime bug which caused runtime exception
   08/09/2011 - Ludvik Jerabek - Added code to export functions for DLL and LIB
   02/15/2012 - Ludvik Jerabek - Fixed _GETOPT_THROW definition missing in implementation file
   08/01/2012 - Ludvik Jerabek - Created separate functions for char and wchar_t characters so single dll can do both unicode and ansi
   10/15/2012 - Ludvik Jerabek - Modified to match latest GNU features

   **DISCLAIMER**
   THIS MATERIAL IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND,
   EITHER EXPRESS OR IMPLIED, INCLUDING, BUT Not LIMITED TO, THE
   IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
   PURPOSE, OR NON-INFRINGEMENT. SOME JURISDICTIONS DO NOT ALLOW THE
   EXCLUSION OF IMPLIED WARRANTIES, SO THE ABOVE EXCLUSION MAY NOT
   APPLY TO YOU. IN NO EVENT WILL I BE LIABLE TO ANY PARTY FOR ANY
   DIRECT, INDIRECT, SPECIAL OR OTHER CONSEQUENTIAL DAMAGES FOR ANY
   USE OF THIS MATERIAL INCLUDING, WITHOUT LIMITATION, ANY LOST
   PROFITS, BUSINESS INTERRUPTION, LOSS OF PROGRAMS OR OTHER DATA ON
   YOUR INFORMATION HANDLING SYSTEM OR OTHERWISE, EVEN If WE ARE
   EXPRESSLY ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
*/
#ifndef __GETOPT_H_
#define __GETOPT_H_

#ifdef _GETOPT_API
#undef _GETOPT_API
#endif

#if defined(EXPORTS_GETOPT) && defined(STATIC_GETOPT)
#error "The preprocessor definitions of EXPORTS_GETOPT and STATIC_GETOPT can only be used individually"
#elif defined(STATIC_GETOPT)
#pragma message("Warning static builds of getopt violate the Lesser GNU Public License")
#define _GETOPT_API
#elif defined(EXPORTS_GETOPT)
#pragma message("Exporting getopt library")
#define _GETOPT_API __declspec(dllexport)
#else
#pragma message("Importing getopt library")
#define _GETOPT_API __declspec(dllimport)
#endif

// Change behavior for C\C++
#ifdef __cplusplus
#define _BEGIN_EXTERN_C extern "C" {
#define _END_EXTERN_C }
#define _GETOPT_THROW throw()
#else
#define _BEGIN_EXTERN_C
#define _END_EXTERN_C
#define _GETOPT_THROW
#endif

// Standard GNU options
#define null_argument           0       /*Argument Null*/
#define no_argument                     0       /*Argument Switch Only*/
#define required_argument       1       /*Argument Required*/
#define optional_argument       2       /*Argument Optional*/   

// Shorter Options
#define ARG_NULL        0       /*Argument Null*/
#define ARG_NONE        0       /*Argument Switch Only*/
#define ARG_REQ         1       /*Argument Required*/
#define ARG_OPT         2       /*Argument Optional*/

#include <string.h>
#include <wchar.h>

_BEGIN_EXTERN_C

extern _GETOPT_API int optind;
extern _GETOPT_API int opterr;
extern _GETOPT_API int optopt;

// Ansi
struct option_a
{
  const char* name;
  int has_arg;
  int *flag;
  char val;
};
extern _GETOPT_API char *optarg_a;
extern _GETOPT_API int getopt_a(int argc, char *const *argv, const char *optstring) _GETOPT_THROW;
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;
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;

// Unicode
struct option_w
{
  const wchar_t* name;
  int has_arg;
  int *flag;
  wchar_t val;
};
extern _GETOPT_API wchar_t *optarg_w;
extern _GETOPT_API int getopt_w(int argc, wchar_t *const *argv, const wchar_t *optstring) _GETOPT_THROW;
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;
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;   
        
_END_EXTERN_C

#undef _BEGIN_EXTERN_C
#undef _END_EXTERN_C
#undef _GETOPT_THROW
#undef _GETOPT_API

#ifdef _UNICODE
#define getopt getopt_w
#define getopt_long getopt_long_w
#define getopt_long_only getopt_long_only_w
#define option option_w
#define optarg optarg_w
#else
#define getopt getopt_a
#define getopt_long getopt_long_a
#define getopt_long_only getopt_long_only_a
#define option option_a
#define optarg optarg_a
#endif
#endif  // __GETOPT_H_
Revision:	1943
Committed:	Tue Nov 5 19:12:57 2013 UTC (12 years ago) by gezelter
Content type:	text/plain
File size:	4870 byte(s)
Log Message:	Quiet down a few warnings in MSVC
#	User	Rev	Content
1	gezelter	1943	/* Getopt for Microsoft C
2			This code is a modification of the Free Software Foundation, Inc.
3			Getopt library for parsing command line argument the purpose was
4			to provide a Microsoft Visual C friendly derivative. This code
5			provides functionality for both Unicode and Multibyte builds.
6	gezelter	1795
7	gezelter	1943	Date: 02/03/2011 - Ludvik Jerabek - Initial Release
8			Version: 1.0
9			Comment: Supports getopt, getopt_long, and getopt_long_only
10			and POSIXLY_CORRECT environment flag
11			License: LGPL
12	gezelter	1795
13	gezelter	1943	Revisions:
14	gezelter	1795
15	gezelter	1943	02/03/2011 - Ludvik Jerabek - Initial Release
16			02/20/2011 - Ludvik Jerabek - Fixed compiler warnings at Level 4
17			07/05/2011 - Ludvik Jerabek - Added no_argument, required_argument, optional_argument defs
18			08/03/2011 - Ludvik Jerabek - Fixed non-argument runtime bug which caused runtime exception
19			08/09/2011 - Ludvik Jerabek - Added code to export functions for DLL and LIB
20			02/15/2012 - Ludvik Jerabek - Fixed _GETOPT_THROW definition missing in implementation file
21			08/01/2012 - Ludvik Jerabek - Created separate functions for char and wchar_t characters so single dll can do both unicode and ansi
22			10/15/2012 - Ludvik Jerabek - Modified to match latest GNU features
23	gezelter	1795
24	gezelter	1943	DISCLAIMER
25			THIS MATERIAL IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND,
26			EITHER EXPRESS OR IMPLIED, INCLUDING, BUT Not LIMITED TO, THE
27			IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
28			PURPOSE, OR NON-INFRINGEMENT. SOME JURISDICTIONS DO NOT ALLOW THE
29			EXCLUSION OF IMPLIED WARRANTIES, SO THE ABOVE EXCLUSION MAY NOT
30			APPLY TO YOU. IN NO EVENT WILL I BE LIABLE TO ANY PARTY FOR ANY
31			DIRECT, INDIRECT, SPECIAL OR OTHER CONSEQUENTIAL DAMAGES FOR ANY
32			USE OF THIS MATERIAL INCLUDING, WITHOUT LIMITATION, ANY LOST
33			PROFITS, BUSINESS INTERRUPTION, LOSS OF PROGRAMS OR OTHER DATA ON
34			YOUR INFORMATION HANDLING SYSTEM OR OTHERWISE, EVEN If WE ARE
35			EXPRESSLY ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
36	gezelter	1795	*/
37			#ifndef __GETOPT_H_
38			#define __GETOPT_H_
39
40			#ifdef _GETOPT_API
41			#undef _GETOPT_API
42			#endif
43
44			#if defined(EXPORTS_GETOPT) && defined(STATIC_GETOPT)
45			#error "The preprocessor definitions of EXPORTS_GETOPT and STATIC_GETOPT can only be used individually"
46			#elif defined(STATIC_GETOPT)
47			#pragma message("Warning static builds of getopt violate the Lesser GNU Public License")
48			#define _GETOPT_API
49			#elif defined(EXPORTS_GETOPT)
50			#pragma message("Exporting getopt library")
51	gezelter	1943	#define _GETOPT_API __declspec(dllexport)
52	gezelter	1795	#else
53			#pragma message("Importing getopt library")
54			#define _GETOPT_API __declspec(dllimport)
55			#endif
56
57			// Change behavior for C\C++
58			#ifdef __cplusplus
59			#define _BEGIN_EXTERN_C extern "C" {
60			#define _END_EXTERN_C }
61			#define _GETOPT_THROW throw()
62			#else
63			#define _BEGIN_EXTERN_C
64			#define _END_EXTERN_C
65			#define _GETOPT_THROW
66			#endif
67
68	gezelter	1943	// Standard GNU options
69			#define null_argument 0 /Argument Null/
70			#define no_argument 0 /Argument Switch Only/
71			#define required_argument 1 /Argument Required/
72			#define optional_argument 2 /Argument Optional/
73
74			// Shorter Options
75			#define ARG_NULL 0 /Argument Null/
76			#define ARG_NONE 0 /Argument Switch Only/
77			#define ARG_REQ 1 /Argument Required/
78			#define ARG_OPT 2 /Argument Optional/
79
80			#include <string.h>
81			#include <wchar.h>
82
83	gezelter	1795	_BEGIN_EXTERN_C
84
85			extern _GETOPT_API int optind;
86			extern _GETOPT_API int opterr;
87			extern _GETOPT_API int optopt;
88
89			// Ansi
90			struct option_a
91			{
92	gezelter	1943	const char* name;
93			int has_arg;
94			int *flag;
95			char val;
96	gezelter	1795	};
97	gezelter	1943	extern _GETOPT_API char *optarg_a;
98			extern _GETOPT_API int getopt_a(int argc, char const argv, const char *optstring) _GETOPT_THROW;
99			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;
100			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;
101	gezelter	1795
102			// Unicode
103			struct option_w
104			{
105	gezelter	1943	const wchar_t* name;
106			int has_arg;
107			int *flag;
108			wchar_t val;
109	gezelter	1795	};
110	gezelter	1943	extern _GETOPT_API wchar_t *optarg_w;
111	gezelter	1795	extern _GETOPT_API int getopt_w(int argc, wchar_t const argv, const wchar_t *optstring) _GETOPT_THROW;
112	gezelter	1943	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;
113			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;
114
115	gezelter	1795	_END_EXTERN_C
116
117			#undef _BEGIN_EXTERN_C
118			#undef _END_EXTERN_C
119			#undef _GETOPT_THROW
120			#undef _GETOPT_API
121
122	gezelter	1943	#ifdef _UNICODE
123			#define getopt getopt_w
124			#define getopt_long getopt_long_w
125			#define getopt_long_only getopt_long_only_w
126			#define option option_w
127			#define optarg optarg_w
128			#else
129			#define getopt getopt_a
130			#define getopt_long getopt_long_a
131			#define getopt_long_only getopt_long_only_a
132			#define option option_a
133			#define optarg optarg_a
134			#endif
135			#endif // __GETOPT_H_