diff options
Diffstat (limited to 'navit/support/xgetopt/XGetopt.c')
| -rw-r--r-- | navit/support/xgetopt/XGetopt.c | 432 |
1 files changed, 216 insertions, 216 deletions
diff --git a/navit/support/xgetopt/XGetopt.c b/navit/support/xgetopt/XGetopt.c index d6174d826..60bc0f474 100644 --- a/navit/support/xgetopt/XGetopt.c +++ b/navit/support/xgetopt/XGetopt.c @@ -1,216 +1,216 @@ -// XGetopt.cpp Version 1.2
-//
-// Author: Hans Dietrich
-// hdietrich2@hotmail.com
-//
-// Description:
-// XGetopt.cpp implements getopt(), a function to parse command lines.
-//
-// History
-// Version 1.2 - 2003 May 17
-// - Added Unicode support
-//
-// Version 1.1 - 2002 March 10
-// - Added example to XGetopt.cpp module header
-//
-// This software is released into the public domain.
-// You are free to use it in any way you like.
-//
-// This software is provided "as is" with no expressed
-// or implied warranty. I accept no liability for any
-// damage or loss of business that this software may cause.
-//
-///////////////////////////////////////////////////////////////////////////////
-
-
-
-///////////////////////////////////////////////////////////////////////////////
-// if you are not using precompiled headers then include these lines:
-#include <windows.h>
-#include <stdio.h>
-///////////////////////////////////////////////////////////////////////////////
-
-
-#include "XGetopt.h"
-
-
-///////////////////////////////////////////////////////////////////////////////
-//
-// X G e t o p t . c p p
-//
-//
-// NAME
-// getopt -- parse command line options
-//
-// SYNOPSIS
-// int getopt(int argc, char *argv[], char *optstring)
-//
-// extern char *optarg;
-// extern int optind;
-//
-// DESCRIPTION
-// The getopt() function parses the command line arguments. Its
-// arguments argc and argv are the argument count and array as
-// passed into the application on program invocation. In the case
-// of Visual C++ programs, argc and argv are available via the
-// variables __argc and __argv (double underscores), respectively.
-// getopt returns the next option letter in argv that matches a
-// letter in optstring. (Note: Unicode programs should use
-// __targv instead of __argv. Also, all character and string
-// literals should be enclosed in _T( ) ).
-//
-// optstring is a string of recognized option letters; if a letter
-// is followed by a colon, the option is expected to have an argument
-// that may or may not be separated from it by white space. optarg
-// is set to point to the start of the option argument on return from
-// getopt.
-//
-// Option letters may be combined, e.g., "-ab" is equivalent to
-// "-a -b". Option letters are case sensitive.
-//
-// getopt places in the external variable optind the argv index
-// of the next argument to be processed. optind is initialized
-// to 0 before the first call to getopt.
-//
-// When all options have been processed (i.e., up to the first
-// non-option argument), getopt returns EOF, optarg will point
-// to the argument, and optind will be set to the argv index of
-// the argument. If there are no non-option arguments, optarg
-// will be set to NULL.
-//
-// The special option "--" may be used to delimit the end of the
-// options; EOF will be returned, and "--" (and everything after it)
-// will be skipped.
-//
-// RETURN VALUE
-// For option letters contained in the string optstring, getopt
-// will return the option letter. getopt returns a question mark (?)
-// when it encounters an option letter not included in optstring.
-// EOF is returned when processing is finished.
-//
-// BUGS
-// 1) Long options are not supported.
-// 2) The GNU double-colon extension is not supported.
-// 3) The environment variable POSIXLY_CORRECT is not supported.
-// 4) The + syntax is not supported.
-// 5) The automatic permutation of arguments is not supported.
-// 6) This implementation of getopt() returns EOF if an error is
-// encountered, instead of -1 as the latest standard requires.
-//
-// EXAMPLE
-// BOOL CMyApp::ProcessCommandLine(int argc, char *argv[])
-// {
-// int c;
-//
-// while ((c = getopt(argc, argv, "aBn:")) != EOF)
-// {
-// switch (c)
-// {
-// case 'a':
-// TRACE("option a\n");
-// //
-// // set some flag here
-// //
-// break;
-//
-// case 'B':
-// TRACE( "option B\n");
-// //
-// // set some other flag here
-// //
-// break;
-//
-// case 'n':
-// TRACE("option n: value=%d\n", atoi(optarg));
-// //
-// // do something with value here
-// //
-// break;
-//
-// case '?':
-// TRACE("ERROR: illegal option %s\n", argv[optind-1]);
-// return FALSE;
-// break;
-//
-// default:
-// TRACE("WARNING: no handler for option %c\n", c);
-// return FALSE;
-// break;
-// }
-// }
-// //
-// // check for non-option args here
-// //
-// return TRUE;
-// }
-//
-///////////////////////////////////////////////////////////////////////////////
-
-char *optarg; // global argument pointer
-int optind = 0; // global argv index
-
-int getopt(int argc, char *argv[], char *optstring)
-{
- static char *next = NULL;
- char c;
- char *cp;
-
- if (optind == 0)
- next = NULL;
-
- optarg = NULL;
-
- if (next == NULL || *next == '\0')
- {
- if (optind == 0)
- optind++;
-
- if (optind >= argc || argv[optind][0] != '-' || argv[optind][1] == '\0')
- {
- optarg = NULL;
- if (optind < argc)
- optarg = argv[optind];
- return EOF;
- }
-
- if (strcmp(argv[optind], "--") == 0)
- {
- optind++;
- optarg = NULL;
- if (optind < argc)
- optarg = argv[optind];
- return EOF;
- }
-
- next = argv[optind];
- next++; // skip past -
- optind++;
- }
-
- c = *next++;
- cp = strchr(optstring, c);
-
- if (cp == NULL || c == ':')
- return '?';
-
- cp++;
- if (*cp == ':')
- {
- if (*next != '\0')
- {
- optarg = next;
- next = NULL;
- }
- else if (optind < argc)
- {
- optarg = argv[optind];
- optind++;
- }
- else
- {
- return '?';
- }
- }
-
- return c;
-}
+// XGetopt.cpp Version 1.2 +// +// Author: Hans Dietrich +// hdietrich2@hotmail.com +// +// Description: +// XGetopt.cpp implements getopt(), a function to parse command lines. +// +// History +// Version 1.2 - 2003 May 17 +// - Added Unicode support +// +// Version 1.1 - 2002 March 10 +// - Added example to XGetopt.cpp module header +// +// This software is released into the public domain. +// You are free to use it in any way you like. +// +// This software is provided "as is" with no expressed +// or implied warranty. I accept no liability for any +// damage or loss of business that this software may cause. +// +/////////////////////////////////////////////////////////////////////////////// + + + +/////////////////////////////////////////////////////////////////////////////// +// if you are not using precompiled headers then include these lines: +#include <windows.h> +#include <stdio.h> +/////////////////////////////////////////////////////////////////////////////// + + +#include "XGetopt.h" + + +/////////////////////////////////////////////////////////////////////////////// +// +// X G e t o p t . c p p +// +// +// NAME +// getopt -- parse command line options +// +// SYNOPSIS +// int getopt(int argc, char *argv[], char *optstring) +// +// extern char *optarg; +// extern int optind; +// +// DESCRIPTION +// The getopt() function parses the command line arguments. Its +// arguments argc and argv are the argument count and array as +// passed into the application on program invocation. In the case +// of Visual C++ programs, argc and argv are available via the +// variables __argc and __argv (double underscores), respectively. +// getopt returns the next option letter in argv that matches a +// letter in optstring. (Note: Unicode programs should use +// __targv instead of __argv. Also, all character and string +// literals should be enclosed in _T( ) ). +// +// optstring is a string of recognized option letters; if a letter +// is followed by a colon, the option is expected to have an argument +// that may or may not be separated from it by white space. optarg +// is set to point to the start of the option argument on return from +// getopt. +// +// Option letters may be combined, e.g., "-ab" is equivalent to +// "-a -b". Option letters are case sensitive. +// +// getopt places in the external variable optind the argv index +// of the next argument to be processed. optind is initialized +// to 0 before the first call to getopt. +// +// When all options have been processed (i.e., up to the first +// non-option argument), getopt returns EOF, optarg will point +// to the argument, and optind will be set to the argv index of +// the argument. If there are no non-option arguments, optarg +// will be set to NULL. +// +// The special option "--" may be used to delimit the end of the +// options; EOF will be returned, and "--" (and everything after it) +// will be skipped. +// +// RETURN VALUE +// For option letters contained in the string optstring, getopt +// will return the option letter. getopt returns a question mark (?) +// when it encounters an option letter not included in optstring. +// EOF is returned when processing is finished. +// +// BUGS +// 1) Long options are not supported. +// 2) The GNU double-colon extension is not supported. +// 3) The environment variable POSIXLY_CORRECT is not supported. +// 4) The + syntax is not supported. +// 5) The automatic permutation of arguments is not supported. +// 6) This implementation of getopt() returns EOF if an error is +// encountered, instead of -1 as the latest standard requires. +// +// EXAMPLE +// BOOL CMyApp::ProcessCommandLine(int argc, char *argv[]) +// { +// int c; +// +// while ((c = getopt(argc, argv, "aBn:")) != EOF) +// { +// switch (c) +// { +// case 'a': +// TRACE("option a\n"); +// // +// // set some flag here +// // +// break; +// +// case 'B': +// TRACE( "option B\n"); +// // +// // set some other flag here +// // +// break; +// +// case 'n': +// TRACE("option n: value=%d\n", atoi(optarg)); +// // +// // do something with value here +// // +// break; +// +// case '?': +// TRACE("ERROR: illegal option %s\n", argv[optind-1]); +// return FALSE; +// break; +// +// default: +// TRACE("WARNING: no handler for option %c\n", c); +// return FALSE; +// break; +// } +// } +// // +// // check for non-option args here +// // +// return TRUE; +// } +// +/////////////////////////////////////////////////////////////////////////////// + +char *optarg; // global argument pointer +int optind = 0; // global argv index + +int getopt(int argc, char *argv[], char *optstring) +{ + static char *next = NULL; + char c; + char *cp; + + if (optind == 0) + next = NULL; + + optarg = NULL; + + if (next == NULL || *next == '\0') + { + if (optind == 0) + optind++; + + if (optind >= argc || argv[optind][0] != '-' || argv[optind][1] == '\0') + { + optarg = NULL; + if (optind < argc) + optarg = argv[optind]; + return EOF; + } + + if (strcmp(argv[optind], "--") == 0) + { + optind++; + optarg = NULL; + if (optind < argc) + optarg = argv[optind]; + return EOF; + } + + next = argv[optind]; + next++; // skip past - + optind++; + } + + c = *next++; + cp = strchr(optstring, c); + + if (cp == NULL || c == ':') + return '?'; + + cp++; + if (*cp == ':') + { + if (*next != '\0') + { + optarg = next; + next = NULL; + } + else if (optind < argc) + { + optarg = argv[optind]; + optind++; + } + else + { + return '?'; + } + } + + return c; +} |