From 38bca95901b0a14a0792ffd6c836ae352b9a9eba Mon Sep 17 00:00:00 2001 From: martin-s Date: Fri, 30 Sep 2011 12:13:11 +0000 Subject: [PATCH] Fix:support_xgetopt:Removed unneccessary c++ dependency git-svn-id: https://navit.svn.sourceforge.net/svnroot/navit/trunk@4812 ffa7fe5e-494d-0410-b361-a75ebd5db220 --- navit/navit/support/xgetopt/XGetopt.c | 216 ++++++++++++++++++++++++++++++++++ 1 file changed, 216 insertions(+) create mode 100644 navit/navit/support/xgetopt/XGetopt.c diff --git a/navit/navit/support/xgetopt/XGetopt.c b/navit/navit/support/xgetopt/XGetopt.c new file mode 100644 index 0000000..d6174d8 --- /dev/null +++ b/navit/navit/support/xgetopt/XGetopt.c @@ -0,0 +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 +#include +/////////////////////////////////////////////////////////////////////////////// + + +#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; +} -- 2.7.4