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Implement new argument parsing using getopt and add the corresponding library to externals

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This commit is contained in:
Greg Wicks
2015-06-22 20:59:00 -04:00
parent f4e1d8ea36
commit 9930ef72dd
6 changed files with 1156 additions and 3 deletions
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11
externals/getopt/CMakeLists.txt vendored Normal file
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@@ -0,0 +1,11 @@
set(SRCS
getopt.c
)
set(HEADERS
getopt.h
)
create_directory_groups(${SRCS} ${HEADERS})
add_library(getopt ${SRCS} ${HEADERS})
target_compile_definitions(getopt INTERFACE STATIC_GETOPT)
target_include_directories(getopt INTERFACE ${CMAKE_CURRENT_SOURCE_DIR})

963
externals/getopt/getopt.c vendored Normal file
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@@ -0,0 +1,963 @@
/* 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
06/19/2015 - Ludvik Jerabek - Fixed maximum option limitation caused by option_a (255) and option_w (65535) structure val variable
**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.
*/
#define _CRT_SECURE_NO_WARNINGS
#include <stdlib.h>
#include <stdio.h>
#ifdef _MSC_VER
#include <malloc.h>
#endif
#include "getopt.h"
#ifdef __cplusplus
#define _GETOPT_THROW throw()
#else
#define _GETOPT_THROW
#endif
int optind = 1;
int opterr = 1;
int optopt = '?';
enum ENUM_ORDERING { REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER };
static struct _getopt_data_a
{
int optind;
int opterr;
int optopt;
char *optarg;
int __initialized;
char *__nextchar;
enum ENUM_ORDERING __ordering;
int __posixly_correct;
int __first_nonopt;
int __last_nonopt;
} getopt_data_a;
char *optarg_a;
static void exchange_a(char **argv, struct _getopt_data_a *d)
{
int bottom = d->__first_nonopt;
int middle = d->__last_nonopt;
int top = d->optind;
char *tem;
while (top > middle && middle > bottom)
{
if (top - middle > middle - bottom)
{
int len = middle - bottom;
register int i;
for (i = 0; i < len; i++)
{
tem = argv[bottom + i];
argv[bottom + i] = argv[top - (middle - bottom) + i];
argv[top - (middle - bottom) + i] = tem;
}
top -= len;
}
else
{
int len = top - middle;
register int i;
for (i = 0; i < len; i++)
{
tem = argv[bottom + i];
argv[bottom + i] = argv[middle + i];
argv[middle + i] = tem;
}
bottom += len;
}
}
d->__first_nonopt += (d->optind - d->__last_nonopt);
d->__last_nonopt = d->optind;
}
static const char *_getopt_initialize_a(const char *optstring, struct _getopt_data_a *d, int posixly_correct)
{
d->__first_nonopt = d->__last_nonopt = d->optind;
d->__nextchar = NULL;
d->__posixly_correct = posixly_correct | !!getenv("POSIXLY_CORRECT");
if (optstring[0] == '-')
{
d->__ordering = RETURN_IN_ORDER;
++optstring;
}
else if (optstring[0] == '+')
{
d->__ordering = REQUIRE_ORDER;
++optstring;
}
else if (d->__posixly_correct)
d->__ordering = REQUIRE_ORDER;
else
d->__ordering = PERMUTE;
return optstring;
}
int _getopt_internal_r_a(int argc, char *const *argv, const char *optstring, const struct option_a *longopts, int *longind, int long_only, struct _getopt_data_a *d, int posixly_correct)
{
int print_errors = d->opterr;
if (argc < 1)
return -1;
d->optarg = NULL;
if (d->optind == 0 || !d->__initialized)
{
if (d->optind == 0)
d->optind = 1;
optstring = _getopt_initialize_a(optstring, d, posixly_correct);
d->__initialized = 1;
}
else if (optstring[0] == '-' || optstring[0] == '+')
optstring++;
if (optstring[0] == ':')
print_errors = 0;
if (d->__nextchar == NULL || *d->__nextchar == '\0')
{
if (d->__last_nonopt > d->optind)
d->__last_nonopt = d->optind;
if (d->__first_nonopt > d->optind)
d->__first_nonopt = d->optind;
if (d->__ordering == PERMUTE)
{
if (d->__first_nonopt != d->__last_nonopt && d->__last_nonopt != d->optind)
exchange_a((char **)argv, d);
else if (d->__last_nonopt != d->optind)
d->__first_nonopt = d->optind;
while (d->optind < argc && (argv[d->optind][0] != '-' || argv[d->optind][1] == '\0'))
d->optind++;
d->__last_nonopt = d->optind;
}
if (d->optind != argc && !strcmp(argv[d->optind], "--"))
{
d->optind++;
if (d->__first_nonopt != d->__last_nonopt && d->__last_nonopt != d->optind)
exchange_a((char **)argv, d);
else if (d->__first_nonopt == d->__last_nonopt)
d->__first_nonopt = d->optind;
d->__last_nonopt = argc;
d->optind = argc;
}
if (d->optind == argc)
{
if (d->__first_nonopt != d->__last_nonopt)
d->optind = d->__first_nonopt;
return -1;
}
if ((argv[d->optind][0] != '-' || argv[d->optind][1] == '\0'))
{
if (d->__ordering == REQUIRE_ORDER)
return -1;
d->optarg = argv[d->optind++];
return 1;
}
d->__nextchar = (argv[d->optind] + 1 + (longopts != NULL && argv[d->optind][1] == '-'));
}
if (longopts != NULL && (argv[d->optind][1] == '-' || (long_only && (argv[d->optind][2] || !strchr(optstring, argv[d->optind][1])))))
{
char *nameend;
unsigned int namelen;
const struct option_a *p;
const struct option_a *pfound = NULL;
struct option_list
{
const struct option_a *p;
struct option_list *next;
} *ambig_list = NULL;
int exact = 0;
int indfound = -1;
int option_index;
for (nameend = d->__nextchar; *nameend && *nameend != '='; nameend++);
namelen = (unsigned int)(nameend - d->__nextchar);
for (p = longopts, option_index = 0; p->name; p++, option_index++)
if (!strncmp(p->name, d->__nextchar, namelen))
{
if (namelen == (unsigned int)strlen(p->name))
{
pfound = p;
indfound = option_index;
exact = 1;
break;
}
else if (pfound == NULL)
{
pfound = p;
indfound = option_index;
}
else if (long_only || pfound->has_arg != p->has_arg || pfound->flag != p->flag || pfound->val != p->val)
{
struct option_list *newp = (struct option_list*)alloca(sizeof(*newp));
newp->p = p;
newp->next = ambig_list;
ambig_list = newp;
}
}
if (ambig_list != NULL && !exact)
{
if (print_errors)
{
struct option_list first;
first.p = pfound;
first.next = ambig_list;
ambig_list = &first;
fprintf(stderr, "%s: option '%s' is ambiguous; possibilities:", argv[0], argv[d->optind]);
do
{
fprintf(stderr, " '--%s'", ambig_list->p->name);
ambig_list = ambig_list->next;
} while (ambig_list != NULL);
fputc('\n', stderr);
}
d->__nextchar += strlen(d->__nextchar);
d->optind++;
d->optopt = 0;
return '?';
}
if (pfound != NULL)
{
option_index = indfound;
d->optind++;
if (*nameend)
{
if (pfound->has_arg)
d->optarg = nameend + 1;
else
{
if (print_errors)
{
if (argv[d->optind - 1][1] == '-')
{
fprintf(stderr, "%s: option '--%s' doesn't allow an argument\n", argv[0], pfound->name);
}
else
{
fprintf(stderr, "%s: option '%c%s' doesn't allow an argument\n", argv[0], argv[d->optind - 1][0], pfound->name);
}
}
d->__nextchar += strlen(d->__nextchar);
d->optopt = pfound->val;
return '?';
}
}
else if (pfound->has_arg == 1)
{
if (d->optind < argc)
d->optarg = argv[d->optind++];
else
{
if (print_errors)
{
fprintf(stderr, "%s: option '--%s' requires an argument\n", argv[0], pfound->name);
}
d->__nextchar += strlen(d->__nextchar);
d->optopt = pfound->val;
return optstring[0] == ':' ? ':' : '?';
}
}
d->__nextchar += strlen(d->__nextchar);
if (longind != NULL)
*longind = option_index;
if (pfound->flag)
{
*(pfound->flag) = pfound->val;
return 0;
}
return pfound->val;
}
if (!long_only || argv[d->optind][1] == '-' || strchr(optstring, *d->__nextchar) == NULL)
{
if (print_errors)
{
if (argv[d->optind][1] == '-')
{
fprintf(stderr, "%s: unrecognized option '--%s'\n", argv[0], d->__nextchar);
}
else
{
fprintf(stderr, "%s: unrecognized option '%c%s'\n", argv[0], argv[d->optind][0], d->__nextchar);
}
}
d->__nextchar = (char *)"";
d->optind++;
d->optopt = 0;
return '?';
}
}
{
char c = *d->__nextchar++;
char *temp = (char*)strchr(optstring, c);
if (*d->__nextchar == '\0')
++d->optind;
if (temp == NULL || c == ':' || c == ';')
{
if (print_errors)
{
fprintf(stderr, "%s: invalid option -- '%c'\n", argv[0], c);
}
d->optopt = c;
return '?';
}
if (temp[0] == 'W' && temp[1] == ';')
{
char *nameend;
const struct option_a *p;
const struct option_a *pfound = NULL;
int exact = 0;
int ambig = 0;
int indfound = 0;
int option_index;
if (longopts == NULL)
goto no_longs;
if (*d->__nextchar != '\0')
{
d->optarg = d->__nextchar;
d->optind++;
}
else if (d->optind == argc)
{
if (print_errors)
{
fprintf(stderr, "%s: option requires an argument -- '%c'\n", argv[0], c);
}
d->optopt = c;
if (optstring[0] == ':')
c = ':';
else
c = '?';
return c;
}
else
d->optarg = argv[d->optind++];
for (d->__nextchar = nameend = d->optarg; *nameend && *nameend != '='; nameend++);
for (p = longopts, option_index = 0; p->name; p++, option_index++)
if (!strncmp(p->name, d->__nextchar, nameend - d->__nextchar))
{
if ((unsigned int)(nameend - d->__nextchar) == strlen(p->name))
{
pfound = p;
indfound = option_index;
exact = 1;
break;
}
else if (pfound == NULL)
{
pfound = p;
indfound = option_index;
}
else if (long_only || pfound->has_arg != p->has_arg || pfound->flag != p->flag || pfound->val != p->val)
ambig = 1;
}
if (ambig && !exact)
{
if (print_errors)
{
fprintf(stderr, "%s: option '-W %s' is ambiguous\n", argv[0], d->optarg);
}
d->__nextchar += strlen(d->__nextchar);
d->optind++;
return '?';
}
if (pfound != NULL)
{
option_index = indfound;
if (*nameend)
{
if (pfound->has_arg)
d->optarg = nameend + 1;
else
{
if (print_errors)
{
fprintf(stderr, "%s: option '-W %s' doesn't allow an argument\n", argv[0], pfound->name);
}
d->__nextchar += strlen(d->__nextchar);
return '?';
}
}
else if (pfound->has_arg == 1)
{
if (d->optind < argc)
d->optarg = argv[d->optind++];
else
{
if (print_errors)
{
fprintf(stderr, "%s: option '-W %s' requires an argument\n", argv[0], pfound->name);
}
d->__nextchar += strlen(d->__nextchar);
return optstring[0] == ':' ? ':' : '?';
}
}
else
d->optarg = NULL;
d->__nextchar += strlen(d->__nextchar);
if (longind != NULL)
*longind = option_index;
if (pfound->flag)
{
*(pfound->flag) = pfound->val;
return 0;
}
return pfound->val;
}
no_longs:
d->__nextchar = NULL;
return 'W';
}
if (temp[1] == ':')
{
if (temp[2] == ':')
{
if (*d->__nextchar != '\0')
{
d->optarg = d->__nextchar;
d->optind++;
}
else
d->optarg = NULL;
d->__nextchar = NULL;
}
else
{
if (*d->__nextchar != '\0')
{
d->optarg = d->__nextchar;
d->optind++;
}
else if (d->optind == argc)
{
if (print_errors)
{
fprintf(stderr, "%s: option requires an argument -- '%c'\n", argv[0], c);
}
d->optopt = c;
if (optstring[0] == ':')
c = ':';
else
c = '?';
}
else
d->optarg = argv[d->optind++];
d->__nextchar = NULL;
}
}
return c;
}
}
int _getopt_internal_a(int argc, char *const *argv, const char *optstring, const struct option_a *longopts, int *longind, int long_only, int posixly_correct)
{
int result;
getopt_data_a.optind = optind;
getopt_data_a.opterr = opterr;
result = _getopt_internal_r_a(argc, argv, optstring, longopts, longind, long_only, &getopt_data_a, posixly_correct);
optind = getopt_data_a.optind;
optarg_a = getopt_data_a.optarg;
optopt = getopt_data_a.optopt;
return result;
}
int getopt_a(int argc, char *const *argv, const char *optstring) _GETOPT_THROW
{
return _getopt_internal_a(argc, argv, optstring, (const struct option_a *) 0, (int *)0, 0, 0);
}
int getopt_long_a(int argc, char *const *argv, const char *options, const struct option_a *long_options, int *opt_index) _GETOPT_THROW
{
return _getopt_internal_a(argc, argv, options, long_options, opt_index, 0, 0);
}
int getopt_long_only_a(int argc, char *const *argv, const char *options, const struct option_a *long_options, int *opt_index) _GETOPT_THROW
{
return _getopt_internal_a(argc, argv, options, long_options, opt_index, 1, 0);
}
int _getopt_long_r_a(int argc, char *const *argv, const char *options, const struct option_a *long_options, int *opt_index, struct _getopt_data_a *d)
{
return _getopt_internal_r_a(argc, argv, options, long_options, opt_index, 0, d, 0);
}
int _getopt_long_only_r_a(int argc, char *const *argv, const char *options, const struct option_a *long_options, int *opt_index, struct _getopt_data_a *d)
{
return _getopt_internal_r_a(argc, argv, options, long_options, opt_index, 1, d, 0);
}
static struct _getopt_data_w
{
int optind;
int opterr;
int optopt;
wchar_t *optarg;
int __initialized;
wchar_t *__nextchar;
enum ENUM_ORDERING __ordering;
int __posixly_correct;
int __first_nonopt;
int __last_nonopt;
} getopt_data_w;
wchar_t *optarg_w;
static void exchange_w(wchar_t **argv, struct _getopt_data_w *d)
{
int bottom = d->__first_nonopt;
int middle = d->__last_nonopt;
int top = d->optind;
wchar_t *tem;
while (top > middle && middle > bottom)
{
if (top - middle > middle - bottom)
{
int len = middle - bottom;
register int i;
for (i = 0; i < len; i++)
{
tem = argv[bottom + i];
argv[bottom + i] = argv[top - (middle - bottom) + i];
argv[top - (middle - bottom) + i] = tem;
}
top -= len;
}
else
{
int len = top - middle;
register int i;
for (i = 0; i < len; i++)
{
tem = argv[bottom + i];
argv[bottom + i] = argv[middle + i];
argv[middle + i] = tem;
}
bottom += len;
}
}
d->__first_nonopt += (d->optind - d->__last_nonopt);
d->__last_nonopt = d->optind;
}
static const wchar_t *_getopt_initialize_w(const wchar_t *optstring, struct _getopt_data_w *d, int posixly_correct)
{
d->__first_nonopt = d->__last_nonopt = d->optind;
d->__nextchar = NULL;
d->__posixly_correct = posixly_correct | !!_wgetenv(L"POSIXLY_CORRECT");
if (optstring[0] == L'-')
{
d->__ordering = RETURN_IN_ORDER;
++optstring;
}
else if (optstring[0] == L'+')
{
d->__ordering = REQUIRE_ORDER;
++optstring;
}
else if (d->__posixly_correct)
d->__ordering = REQUIRE_ORDER;
else
d->__ordering = PERMUTE;
return optstring;
}
int _getopt_internal_r_w(int argc, wchar_t *const *argv, const wchar_t *optstring, const struct option_w *longopts, int *longind, int long_only, struct _getopt_data_w *d, int posixly_correct)
{
int print_errors = d->opterr;
if (argc < 1)
return -1;
d->optarg = NULL;
if (d->optind == 0 || !d->__initialized)
{
if (d->optind == 0)
d->optind = 1;
optstring = _getopt_initialize_w(optstring, d, posixly_correct);
d->__initialized = 1;
}
else if (optstring[0] == L'-' || optstring[0] == L'+')
optstring++;
if (optstring[0] == L':')
print_errors = 0;
if (d->__nextchar == NULL || *d->__nextchar == L'\0')
{
if (d->__last_nonopt > d->optind)
d->__last_nonopt = d->optind;
if (d->__first_nonopt > d->optind)
d->__first_nonopt = d->optind;
if (d->__ordering == PERMUTE)
{
if (d->__first_nonopt != d->__last_nonopt && d->__last_nonopt != d->optind)
exchange_w((wchar_t **)argv, d);
else if (d->__last_nonopt != d->optind)
d->__first_nonopt = d->optind;
while (d->optind < argc && (argv[d->optind][0] != L'-' || argv[d->optind][1] == L'\0'))
d->optind++;
d->__last_nonopt = d->optind;
}
if (d->optind != argc && !wcscmp(argv[d->optind], L"--"))
{
d->optind++;
if (d->__first_nonopt != d->__last_nonopt && d->__last_nonopt != d->optind)
exchange_w((wchar_t **)argv, d);
else if (d->__first_nonopt == d->__last_nonopt)
d->__first_nonopt = d->optind;
d->__last_nonopt = argc;
d->optind = argc;
}
if (d->optind == argc)
{
if (d->__first_nonopt != d->__last_nonopt)
d->optind = d->__first_nonopt;
return -1;
}
if ((argv[d->optind][0] != L'-' || argv[d->optind][1] == L'\0'))
{
if (d->__ordering == REQUIRE_ORDER)
return -1;
d->optarg = argv[d->optind++];
return 1;
}
d->__nextchar = (argv[d->optind] + 1 + (longopts != NULL && argv[d->optind][1] == L'-'));
}
if (longopts != NULL && (argv[d->optind][1] == L'-' || (long_only && (argv[d->optind][2] || !wcschr(optstring, argv[d->optind][1])))))
{
wchar_t *nameend;
unsigned int namelen;
const struct option_w *p;
const struct option_w *pfound = NULL;
struct option_list
{
const struct option_w *p;
struct option_list *next;
} *ambig_list = NULL;
int exact = 0;
int indfound = -1;
int option_index;
for (nameend = d->__nextchar; *nameend && *nameend != L'='; nameend++);
namelen = (unsigned int)(nameend - d->__nextchar);
for (p = longopts, option_index = 0; p->name; p++, option_index++)
if (!wcsncmp(p->name, d->__nextchar, namelen))
{
if (namelen == (unsigned int)wcslen(p->name))
{
pfound = p;
indfound = option_index;
exact = 1;
break;
}
else if (pfound == NULL)
{
pfound = p;
indfound = option_index;
}
else if (long_only || pfound->has_arg != p->has_arg || pfound->flag != p->flag || pfound->val != p->val)
{
struct option_list *newp = (struct option_list*)alloca(sizeof(*newp));
newp->p = p;
newp->next = ambig_list;
ambig_list = newp;
}
}
if (ambig_list != NULL && !exact)
{
if (print_errors)
{
struct option_list first;
first.p = pfound;
first.next = ambig_list;
ambig_list = &first;
fwprintf(stderr, L"%s: option '%s' is ambiguous; possibilities:", argv[0], argv[d->optind]);
do
{
fwprintf(stderr, L" '--%s'", ambig_list->p->name);
ambig_list = ambig_list->next;
} while (ambig_list != NULL);
fputwc(L'\n', stderr);
}
d->__nextchar += wcslen(d->__nextchar);
d->optind++;
d->optopt = 0;
return L'?';
}
if (pfound != NULL)
{
option_index = indfound;
d->optind++;
if (*nameend)
{
if (pfound->has_arg)
d->optarg = nameend + 1;
else
{
if (print_errors)
{
if (argv[d->optind - 1][1] == L'-')
{
fwprintf(stderr, L"%s: option '--%s' doesn't allow an argument\n", argv[0], pfound->name);
}
else
{
fwprintf(stderr, L"%s: option '%c%s' doesn't allow an argument\n", argv[0], argv[d->optind - 1][0], pfound->name);
}
}
d->__nextchar += wcslen(d->__nextchar);
d->optopt = pfound->val;
return L'?';
}
}
else if (pfound->has_arg == 1)
{
if (d->optind < argc)
d->optarg = argv[d->optind++];
else
{
if (print_errors)
{
fwprintf(stderr, L"%s: option '--%s' requires an argument\n", argv[0], pfound->name);
}
d->__nextchar += wcslen(d->__nextchar);
d->optopt = pfound->val;
return optstring[0] == L':' ? L':' : L'?';
}
}
d->__nextchar += wcslen(d->__nextchar);
if (longind != NULL)
*longind = option_index;
if (pfound->flag)
{
*(pfound->flag) = pfound->val;
return 0;
}
return pfound->val;
}
if (!long_only || argv[d->optind][1] == L'-' || wcschr(optstring, *d->__nextchar) == NULL)
{
if (print_errors)
{
if (argv[d->optind][1] == L'-')
{
fwprintf(stderr, L"%s: unrecognized option '--%s'\n", argv[0], d->__nextchar);
}
else
{
fwprintf(stderr, L"%s: unrecognized option '%c%s'\n", argv[0], argv[d->optind][0], d->__nextchar);
}
}
d->__nextchar = (wchar_t *)L"";
d->optind++;
d->optopt = 0;
return L'?';
}
}
{
wchar_t c = *d->__nextchar++;
wchar_t *temp = (wchar_t*)wcschr(optstring, c);
if (*d->__nextchar == L'\0')
++d->optind;
if (temp == NULL || c == L':' || c == L';')
{
if (print_errors)
{
fwprintf(stderr, L"%s: invalid option -- '%c'\n", argv[0], c);
}
d->optopt = c;
return L'?';
}
if (temp[0] == L'W' && temp[1] == L';')
{
wchar_t *nameend;
const struct option_w *p;
const struct option_w *pfound = NULL;
int exact = 0;
int ambig = 0;
int indfound = 0;
int option_index;
if (longopts == NULL)
goto no_longs;
if (*d->__nextchar != L'\0')
{
d->optarg = d->__nextchar;
d->optind++;
}
else if (d->optind == argc)
{
if (print_errors)
{
fwprintf(stderr, L"%s: option requires an argument -- '%c'\n", argv[0], c);
}
d->optopt = c;
if (optstring[0] == L':')
c = L':';
else
c = L'?';
return c;
}
else
d->optarg = argv[d->optind++];
for (d->__nextchar = nameend = d->optarg; *nameend && *nameend != L'='; nameend++);
for (p = longopts, option_index = 0; p->name; p++, option_index++)
if (!wcsncmp(p->name, d->__nextchar, nameend - d->__nextchar))
{
if ((unsigned int)(nameend - d->__nextchar) == wcslen(p->name))
{
pfound = p;
indfound = option_index;
exact = 1;
break;
}
else if (pfound == NULL)
{
pfound = p;
indfound = option_index;
}
else if (long_only || pfound->has_arg != p->has_arg || pfound->flag != p->flag || pfound->val != p->val)
ambig = 1;
}
if (ambig && !exact)
{
if (print_errors)
{
fwprintf(stderr, L"%s: option '-W %s' is ambiguous\n", argv[0], d->optarg);
}
d->__nextchar += wcslen(d->__nextchar);
d->optind++;
return L'?';
}
if (pfound != NULL)
{
option_index = indfound;
if (*nameend)
{
if (pfound->has_arg)
d->optarg = nameend + 1;
else
{
if (print_errors)
{
fwprintf(stderr, L"%s: option '-W %s' doesn't allow an argument\n", argv[0], pfound->name);
}
d->__nextchar += wcslen(d->__nextchar);
return L'?';
}
}
else if (pfound->has_arg == 1)
{
if (d->optind < argc)
d->optarg = argv[d->optind++];
else
{
if (print_errors)
{
fwprintf(stderr, L"%s: option '-W %s' requires an argument\n", argv[0], pfound->name);
}
d->__nextchar += wcslen(d->__nextchar);
return optstring[0] == L':' ? L':' : L'?';
}
}
else
d->optarg = NULL;
d->__nextchar += wcslen(d->__nextchar);
if (longind != NULL)
*longind = option_index;
if (pfound->flag)
{
*(pfound->flag) = pfound->val;
return 0;
}
return pfound->val;
}
no_longs:
d->__nextchar = NULL;
return L'W';
}
if (temp[1] == L':')
{
if (temp[2] == L':')
{
if (*d->__nextchar != L'\0')
{
d->optarg = d->__nextchar;
d->optind++;
}
else
d->optarg = NULL;
d->__nextchar = NULL;
}
else
{
if (*d->__nextchar != L'\0')
{
d->optarg = d->__nextchar;
d->optind++;
}
else if (d->optind == argc)
{
if (print_errors)
{
fwprintf(stderr, L"%s: option requires an argument -- '%c'\n", argv[0], c);
}
d->optopt = c;
if (optstring[0] == L':')
c = L':';
else
c = L'?';
}
else
d->optarg = argv[d->optind++];
d->__nextchar = NULL;
}
}
return c;
}
}
int _getopt_internal_w(int argc, wchar_t *const *argv, const wchar_t *optstring, const struct option_w *longopts, int *longind, int long_only, int posixly_correct)
{
int result;
getopt_data_w.optind = optind;
getopt_data_w.opterr = opterr;
result = _getopt_internal_r_w(argc, argv, optstring, longopts, longind, long_only, &getopt_data_w, posixly_correct);
optind = getopt_data_w.optind;
optarg_w = getopt_data_w.optarg;
optopt = getopt_data_w.optopt;
return result;
}
int getopt_w(int argc, wchar_t *const *argv, const wchar_t *optstring) _GETOPT_THROW
{
return _getopt_internal_w(argc, argv, optstring, (const struct option_w *) 0, (int *)0, 0, 0);
}
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
{
return _getopt_internal_w(argc, argv, options, long_options, opt_index, 0, 0);
}
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
{
return _getopt_internal_w(argc, argv, options, long_options, opt_index, 1, 0);
}
int _getopt_long_r_w(int argc, wchar_t *const *argv, const wchar_t *options, const struct option_w *long_options, int *opt_index, struct _getopt_data_w *d)
{
return _getopt_internal_r_w(argc, argv, options, long_options, opt_index, 0, d, 0);
}
int _getopt_long_only_r_w(int argc, wchar_t *const *argv, const wchar_t *options, const struct option_w *long_options, int *opt_index, struct _getopt_data_w *d)
{
return _getopt_internal_r_w(argc, argv, options, long_options, opt_index, 1, d, 0);
}

136
externals/getopt/getopt.h vendored Normal file
View File

@@ -0,0 +1,136 @@
/* 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
06/19/2015 - Ludvik Jerabek - Fixed maximum option limitation caused by option_a (255) and option_w (65535) structure val variable
**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
#define no_argument 0
#define required_argument 1
#define optional_argument 2
// Shorter Options
#define ARG_NULL 0
#define ARG_NONE 0
#define ARG_REQ 1
#define ARG_OPT 2
#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;
int 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;
int 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_