mirror of https://github.com/RPCS3/rpcs3.git
530 lines
13 KiB
C
530 lines
13 KiB
C
#ifdef _WIN32
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/* 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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**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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#define _CRT_SECURE_NO_WARNINGS
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#include <stdlib.h>
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#include <stdio.h>
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#include "getopt.h"
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enum ENUM_ORDERING { REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER };
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struct _getopt_data
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{
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int optind;
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int opterr;
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int optopt;
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TCHAR *optarg;
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int __initialized;
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TCHAR *__nextchar;
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int __ordering;
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int __posixly_correct;
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int __first_nonopt;
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int __last_nonopt;
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};
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static struct _getopt_data getopt_data;
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TCHAR *optarg;
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int optind = 1;
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int opterr = 1;
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int optopt = _T('?');
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static void exchange(TCHAR **argv, struct _getopt_data *d)
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{
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int bottom = d->__first_nonopt;
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int middle = d->__last_nonopt;
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int top = d->optind;
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TCHAR *tem;
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while (top > middle && middle > bottom)
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{
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if (top - middle > middle - bottom)
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{
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int len = middle - bottom;
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register int i;
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for (i = 0; i < len; i++)
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{
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tem = argv[bottom + i];
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argv[bottom + i] = argv[top - (middle - bottom) + i];
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argv[top - (middle - bottom) + i] = tem;
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}
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top -= len;
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}
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else
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{
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int len = top - middle;
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register int i;
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for (i = 0; i < len; i++)
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{
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tem = argv[bottom + i];
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argv[bottom + i] = argv[middle + i];
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argv[middle + i] = tem;
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}
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bottom += len;
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}
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}
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d->__first_nonopt += (d->optind - d->__last_nonopt);
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d->__last_nonopt = d->optind;
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}
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static const TCHAR *_getopt_initialize (const TCHAR *optstring, struct _getopt_data *d, int posixly_correct)
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{
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d->__first_nonopt = d->__last_nonopt = d->optind;
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d->__nextchar = NULL;
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d->__posixly_correct = posixly_correct | !!_tgetenv(_T("POSIXLY_CORRECT"));
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if (optstring[0] == _T('-'))
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{
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d->__ordering = RETURN_IN_ORDER;
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++optstring;
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}
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else if (optstring[0] == _T('+'))
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{
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d->__ordering = REQUIRE_ORDER;
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++optstring;
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}
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else if (d->__posixly_correct)
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d->__ordering = REQUIRE_ORDER;
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else
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d->__ordering = PERMUTE;
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return optstring;
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}
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int _getopt_internal_r (int argc, TCHAR *const *argv, const TCHAR *optstring, const struct option *longopts, int *longind, int long_only, struct _getopt_data *d, int posixly_correct)
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{
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int print_errors = d->opterr;
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if (argc < 1)
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return -1;
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d->optarg = NULL;
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if (d->optind == 0 || !d->__initialized)
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{
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if (d->optind == 0)
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d->optind = 1;
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optstring = _getopt_initialize (optstring, d, posixly_correct);
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d->__initialized = 1;
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}
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else if (optstring[0] == _T('-') || optstring[0] == _T('+'))
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optstring++;
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if (optstring[0] == _T(':'))
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print_errors = 0;
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if (d->__nextchar == NULL || *d->__nextchar == _T('\0'))
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{
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if (d->__last_nonopt > d->optind)
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d->__last_nonopt = d->optind;
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if (d->__first_nonopt > d->optind)
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d->__first_nonopt = d->optind;
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if (d->__ordering == PERMUTE)
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{
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if (d->__first_nonopt != d->__last_nonopt && d->__last_nonopt != d->optind)
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exchange ((TCHAR **) argv, d);
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else if (d->__last_nonopt != d->optind)
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d->__first_nonopt = d->optind;
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while (d->optind < argc && (argv[d->optind][0] != _T('-') || argv[d->optind][1] == _T('\0')))
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d->optind++;
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d->__last_nonopt = d->optind;
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}
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if (d->optind != argc && !_tcscmp(argv[d->optind], _T("--")))
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{
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d->optind++;
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if (d->__first_nonopt != d->__last_nonopt && d->__last_nonopt != d->optind)
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exchange ((TCHAR **) argv, d);
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else if (d->__first_nonopt == d->__last_nonopt)
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d->__first_nonopt = d->optind;
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d->__last_nonopt = argc;
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d->optind = argc;
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}
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if (d->optind == argc)
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{
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if (d->__first_nonopt != d->__last_nonopt)
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d->optind = d->__first_nonopt;
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return -1;
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}
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if ((argv[d->optind][0] != _T('-') || argv[d->optind][1] == _T('\0')))
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{
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if (d->__ordering == REQUIRE_ORDER)
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return -1;
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d->optarg = argv[d->optind++];
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return 1;
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}
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d->__nextchar = (argv[d->optind] + 1 + (longopts != NULL && argv[d->optind][1] == _T('-')));
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}
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if (longopts != NULL && (argv[d->optind][1] == _T('-') || (long_only && (argv[d->optind][2] || !_tcschr(optstring, argv[d->optind][1])))))
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{
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TCHAR *nameend;
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const struct option *p;
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const struct option *pfound = NULL;
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int exact = 0;
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int ambig = 0;
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int indfound = -1;
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int option_index;
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for (nameend = d->__nextchar; *nameend && *nameend != _T('='); nameend++);
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for (p = longopts, option_index = 0; p->name; p++, option_index++)
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if (!_tcsncmp(p->name, d->__nextchar, nameend - d->__nextchar))
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{
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if ((unsigned int)(nameend - d->__nextchar) == (unsigned int)_tcslen(p->name))
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{
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pfound = p;
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indfound = option_index;
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exact = 1;
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break;
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}
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else if (pfound == NULL)
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{
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pfound = p;
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indfound = option_index;
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}
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else if (long_only || pfound->has_arg != p->has_arg || pfound->flag != p->flag || pfound->val != p->val)
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ambig = 1;
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}
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if (ambig && !exact)
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{
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if (print_errors)
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{
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_ftprintf(stderr, _T("%s: option '%s' is ambiguous\n"),
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argv[0], argv[d->optind]);
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}
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d->__nextchar += _tcslen(d->__nextchar);
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d->optind++;
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d->optopt = 0;
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return _T('?');
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}
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if (pfound != NULL)
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{
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option_index = indfound;
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d->optind++;
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if (*nameend)
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{
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if (pfound->has_arg)
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d->optarg = nameend + 1;
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else
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{
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if (print_errors)
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{
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if (argv[d->optind - 1][1] == _T('-'))
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{
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_ftprintf(stderr, _T("%s: option '--%s' doesn't allow an argument\n"),argv[0], pfound->name);
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}
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else
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{
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_ftprintf(stderr, _T("%s: option '%c%s' doesn't allow an argument\n"),argv[0], argv[d->optind - 1][0],pfound->name);
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}
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}
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d->__nextchar += _tcslen(d->__nextchar);
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d->optopt = pfound->val;
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return _T('?');
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}
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}
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else if (pfound->has_arg == 1)
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{
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if (d->optind < argc)
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d->optarg = argv[d->optind++];
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else
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{
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if (print_errors)
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{
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_ftprintf(stderr,_T("%s: option '--%s' requires an argument\n"),argv[0], pfound->name);
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}
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d->__nextchar += _tcslen(d->__nextchar);
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d->optopt = pfound->val;
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return optstring[0] == _T(':') ? _T(':') : _T('?');
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}
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}
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d->__nextchar += _tcslen(d->__nextchar);
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if (longind != NULL)
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*longind = option_index;
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if (pfound->flag)
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{
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*(pfound->flag) = pfound->val;
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return 0;
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}
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return pfound->val;
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}
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if (!long_only || argv[d->optind][1] == _T('-') || _tcschr(optstring, *d->__nextchar) == NULL)
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{
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if (print_errors)
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{
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if (argv[d->optind][1] == _T('-'))
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{
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/* --option */
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_ftprintf(stderr, _T("%s: unrecognized option '--%s'\n"),argv[0], d->__nextchar);
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}
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else
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{
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/* +option or -option */
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_ftprintf(stderr, _T("%s: unrecognized option '%c%s'\n"),argv[0], argv[d->optind][0], d->__nextchar);
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}
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}
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d->__nextchar = (TCHAR *)_T("");
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d->optind++;
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d->optopt = 0;
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return _T('?');
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}
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}
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{
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TCHAR c = *d->__nextchar++;
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TCHAR *temp = (TCHAR*)_tcschr(optstring, c);
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if (*d->__nextchar == _T('\0'))
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++d->optind;
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if (temp == NULL || c == _T(':') || c == _T(';'))
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{
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if (print_errors)
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{
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_ftprintf(stderr, _T("%s: invalid option -- '%c'\n"), argv[0], c);
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}
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d->optopt = c;
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return _T('?');
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}
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if (temp[0] == _T('W') && temp[1] == _T(';'))
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{
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TCHAR *nameend;
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const struct option *p;
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const struct option *pfound = NULL;
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int exact = 0;
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int ambig = 0;
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int indfound = 0;
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int option_index;
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if (*d->__nextchar != _T('\0'))
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{
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d->optarg = d->__nextchar;
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d->optind++;
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}
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else if (d->optind == argc)
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{
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if (print_errors)
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{
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_ftprintf(stderr,
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_T("%s: option requires an argument -- '%c'\n"),
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argv[0], c);
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}
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d->optopt = c;
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if (optstring[0] == _T(':'))
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c = _T(':');
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else
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c = _T('?');
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return c;
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}
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else
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d->optarg = argv[d->optind++];
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for (d->__nextchar = nameend = d->optarg; *nameend && *nameend != _T('='); nameend++);
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for (p = longopts, option_index = 0; p->name; p++, option_index++)
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if (!_tcsncmp(p->name, d->__nextchar, nameend - d->__nextchar))
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{
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if ((unsigned int) (nameend - d->__nextchar) == _tcslen(p->name))
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{
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pfound = p;
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indfound = option_index;
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exact = 1;
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break;
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}
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else if (pfound == NULL)
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{
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pfound = p;
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indfound = option_index;
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}
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else if (long_only || pfound->has_arg != p->has_arg || pfound->flag != p->flag || pfound->val != p->val)
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ambig = 1;
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}
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if (ambig && !exact)
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{
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if (print_errors)
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{
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_ftprintf(stderr, _T("%s: option '-W %s' is ambiguous\n"),
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argv[0], d->optarg);
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}
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d->__nextchar += _tcslen(d->__nextchar);
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d->optind++;
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return _T('?');
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}
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if (pfound != NULL)
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{
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option_index = indfound;
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if (*nameend)
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{
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if (pfound->has_arg)
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d->optarg = nameend + 1;
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else
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{
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if (print_errors)
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{
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_ftprintf(stderr, _T("\
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%s: option '-W %s' doesn't allow an argument\n"),
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argv[0], pfound->name);
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}
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d->__nextchar += _tcslen(d->__nextchar);
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return _T('?');
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}
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}
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else if (pfound->has_arg == 1)
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{
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if (d->optind < argc)
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d->optarg = argv[d->optind++];
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else
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{
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if (print_errors)
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{
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_ftprintf(stderr, _T("\
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%s: option '-W %s' requires an argument\n"),
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argv[0], pfound->name);
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}
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d->__nextchar += _tcslen(d->__nextchar);
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return optstring[0] == _T(':') ? _T(':') : _T('?');
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}
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}
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else
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d->optarg = NULL;
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d->__nextchar += _tcslen(d->__nextchar);
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if (longind != NULL)
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*longind = option_index;
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if (pfound->flag)
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{
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*(pfound->flag) = pfound->val;
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return 0;
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}
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return pfound->val;
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}
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d->__nextchar = NULL;
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return _T('W');
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}
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if (temp[1] == _T(':'))
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{
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if (temp[2] == _T(':'))
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{
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if (*d->__nextchar != _T('\0'))
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{
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d->optarg = d->__nextchar;
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d->optind++;
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}
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else
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d->optarg = NULL;
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d->__nextchar = NULL;
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}
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else
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{
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if (*d->__nextchar != _T('\0'))
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{
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d->optarg = d->__nextchar;
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d->optind++;
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}
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else if (d->optind == argc)
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{
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if (print_errors)
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{
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_ftprintf(stderr,
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_T("%s: option requires an argument -- '%c'\n"),
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argv[0], c);
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}
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d->optopt = c;
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if (optstring[0] == _T(':'))
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c = _T(':');
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else
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c = _T('?');
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}
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else
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d->optarg = argv[d->optind++];
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d->__nextchar = NULL;
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}
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}
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return c;
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}
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}
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int _getopt_internal (int argc, TCHAR *const *argv, const TCHAR *optstring, const struct option *longopts, int *longind, int long_only, int posixly_correct)
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{
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int result;
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getopt_data.optind = optind;
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getopt_data.opterr = opterr;
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result = _getopt_internal_r (argc, argv, optstring, longopts,longind, long_only, &getopt_data,posixly_correct);
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optind = getopt_data.optind;
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optarg = getopt_data.optarg;
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optopt = getopt_data.optopt;
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return result;
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}
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int getopt (int argc, TCHAR *const *argv, const TCHAR *optstring)
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{
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return _getopt_internal (argc, argv, optstring, (const struct option *) 0, (int *) 0, 0, 0);
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}
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int getopt_long (int argc, TCHAR *const *argv, const TCHAR *options, const struct option *long_options, int *opt_index)
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{
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return _getopt_internal (argc, argv, options, long_options, opt_index, 0, 0);
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}
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int _getopt_long_r (int argc, TCHAR *const *argv, const TCHAR *options, const struct option *long_options, int *opt_index, struct _getopt_data *d)
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{
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return _getopt_internal_r (argc, argv, options, long_options, opt_index,0, d, 0);
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}
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int getopt_long_only (int argc, TCHAR *const *argv, const TCHAR *options, const struct option *long_options, int *opt_index)
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{
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return _getopt_internal (argc, argv, options, long_options, opt_index, 1, 0);
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}
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int _getopt_long_only_r (int argc, TCHAR *const *argv, const TCHAR *options, const struct option *long_options, int *opt_index, struct _getopt_data *d)
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{
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return _getopt_internal_r (argc, argv, options, long_options, opt_index, 1, d, 0);
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}
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#endif
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