1 /* 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 7 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 13 Revisions: 14 15 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 06/19/2015 - Ludvik Jerabek - Fixed maximum option limitation caused by option_a (255) and option_w (65535) structure val variable 24 25 **DISCLAIMER** 26 THIS MATERIAL IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, 27 EITHER EXPRESS OR IMPLIED, INCLUDING, BUT Not LIMITED TO, THE 28 IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR 29 PURPOSE, OR NON-INFRINGEMENT. SOME JURISDICTIONS DO NOT ALLOW THE 30 EXCLUSION OF IMPLIED WARRANTIES, SO THE ABOVE EXCLUSION MAY NOT 31 APPLY TO YOU. IN NO EVENT WILL I BE LIABLE TO ANY PARTY FOR ANY 32 DIRECT, INDIRECT, SPECIAL OR OTHER CONSEQUENTIAL DAMAGES FOR ANY 33 USE OF THIS MATERIAL INCLUDING, WITHOUT LIMITATION, ANY LOST 34 PROFITS, BUSINESS INTERRUPTION, LOSS OF PROGRAMS OR OTHER DATA ON 35 YOUR INFORMATION HANDLING SYSTEM OR OTHERWISE, EVEN If WE ARE 36 EXPRESSLY ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. 37 */ 38 #ifndef __GETOPT_H_ 39 #define __GETOPT_H_ 40 #include <mgl2/dllexport.h> 41 #define _GETOPT_API MGL_EXPORT 42 43 // Change behavior for C\C++ 44 #ifdef __cplusplus 45 #define _BEGIN_EXTERN_C extern "C" { 46 #define _END_EXTERN_C } 47 #define _GETOPT_THROW throw() 48 #else 49 #define _BEGIN_EXTERN_C 50 #define _END_EXTERN_C 51 #define _GETOPT_THROW 52 #endif 53 54 // Standard GNU options 55 #define null_argument 0 /*Argument Null*/ 56 #define no_argument 0 /*Argument Switch Only*/ 57 #define required_argument 1 /*Argument Required*/ 58 #define optional_argument 2 /*Argument Optional*/ 59 60 // Shorter Options 61 #define ARG_NULL 0 /*Argument Null*/ 62 #define ARG_NONE 0 /*Argument Switch Only*/ 63 #define ARG_REQ 1 /*Argument Required*/ 64 #define ARG_OPT 2 /*Argument Optional*/ 65 66 #include <string.h> 67 #include <wchar.h> 68 69 _BEGIN_EXTERN_C 70 71 extern _GETOPT_API int optind; 72 extern _GETOPT_API int opterr; 73 extern _GETOPT_API int optopt; 74 75 // Ansi 76 struct option_a 77 { 78 const char* name; 79 int has_arg; 80 int *flag; 81 int val; 82 }; 83 extern _GETOPT_API char *optarg_a; 84 extern _GETOPT_API int getopt_a(int argc, char *const *argv, const char *optstring) _GETOPT_THROW; 85 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; 86 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; 87 88 // Unicode 89 struct option_w 90 { 91 const wchar_t* name; 92 int has_arg; 93 int *flag; 94 int val; 95 }; 96 extern _GETOPT_API wchar_t *optarg_w; 97 extern _GETOPT_API int getopt_w(int argc, wchar_t *const *argv, const wchar_t *optstring) _GETOPT_THROW; 98 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; 99 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; 100 101 _END_EXTERN_C 102 103 #undef _BEGIN_EXTERN_C 104 #undef _END_EXTERN_C 105 #undef _GETOPT_THROW 106 #undef _GETOPT_API 107 108 #ifdef _UNICODE 109 #define getopt getopt_w 110 #define getopt_long getopt_long_w 111 #define getopt_long_only getopt_long_only_w 112 #define option option_w 113 #define optarg optarg_w 114 #else 115 #define getopt getopt_a 116 #define getopt_long getopt_long_a 117 #define getopt_long_only getopt_long_only_a 118 #define option option_a 119 #define optarg optarg_a 120 #endif 121 #endif // __GETOPT_H_ 122