MFH:- Added common getopt implementation to core.

MFH:- Added long-option feature to getopt().
MFH:- Made getopt() available on win32 systems.
MFH:  Patch by: David Soria Parra <dsp@php.net>
[DOC]: These changes will be available from 5.3+

# Note: Fixed also tests and synced basic_functions.c with HEAD.

1 files changed, 176 insertions, 0 deletions

diff --git a/main/getopt.c b/main/getopt.c
new file mode 100644
index 0000000000..2c00920e95
--- /dev/null
+++ b/main/getopt.c
@@ -0,0 +1,176 @@
+/*
+   +----------------------------------------------------------------------+
+   | PHP Version 5                                                        |
+   +----------------------------------------------------------------------+
+   | Copyright (c) 1997-2007 The PHP Group                                |
+   +----------------------------------------------------------------------+
+   | This source file is subject to version 3.01 of the PHP license,      |
+   | that is bundled with this package in the file LICENSE, and is        |
+   | available through the world-wide-web at the following url:           |
+   | http://www.php.net/license/3_01.txt                                  |
+   | If you did not receive a copy of the PHP license and are unable to   |
+   | obtain it through the world-wide-web, please send a note to          |
+   | license@php.net so we can mail you a copy immediately.               |
+   +----------------------------------------------------------------------+
+   | Author: Marcus Boerger <helly@php.net>                               |
+   +----------------------------------------------------------------------+
+*/
+
+/* $Id$ */
+
+#include <stdio.h>
+#include <string.h>
+#include <assert.h>
+#include <stdlib.h>
+#include "php_getopt.h"
+
+#define OPTERRCOLON (1)
+#define OPTERRNF (2)
+#define OPTERRARG (3)
+
+static int php_opt_error(int argc, char * const *argv, int oint, int optchr, int err, int show_err) /* {{{ */
+{
+	if (show_err)
+	{
+		fprintf(stderr, "Error in argument %d, char %d: ", oint, optchr+1);
+		switch(err)
+		{
+		case OPTERRCOLON:
+			fprintf(stderr, ": in flags\n");
+			break;
+		case OPTERRNF:
+			fprintf(stderr, "option not found %c\n", argv[oint][optchr]);
+			break;
+		case OPTERRARG:
+			fprintf(stderr, "no argument for option %c\n", argv[oint][optchr]);
+			break;
+		default:
+			fprintf(stderr, "unknown\n");
+			break;
+		}
+	}
+	return('?');
+}
+/* }}} */
+
+PHPAPI int php_optidx = -1;
+
+PHPAPI int php_getopt(int argc, char* const *argv, const opt_struct opts[], char **optarg, int *optind, int show_err, int arg_start) /* {{{ */
+{
+	static int optchr = 0;
+	static int dash = 0; /* have already seen the - */
+
+	php_optidx = -1;
+
+	if (*optind >= argc) {
+		return(EOF);
+	}
+	if (!dash) {
+		if ((argv[*optind][0] !=  '-')) {
+			return(EOF);
+		} else {
+			if (!argv[*optind][1])
+			{
+				/*
+				* use to specify stdin. Need to let pgm process this and
+				* the following args
+				*/
+				return(EOF);
+			}
+		}
+	}
+	if ((argv[*optind][0] == '-') && (argv[*optind][1] == '-')) {
+		/* '--' indicates end of args if not followed by a known long option name */
+		if (argv[*optind][2] == '\0') {
+			(*optind)++;
+			return(EOF);
+		}
+
+		while (1) {
+			php_optidx++;
+			if (opts[php_optidx].opt_char == '-') {
+				(*optind)++;
+				return(php_opt_error(argc, argv, *optind-1, optchr, OPTERRARG, show_err));
+			} else if (opts[php_optidx].opt_name && !strcmp(&argv[*optind][2], opts[php_optidx].opt_name)) {
+				break;
+			}
+		}
+		optchr = 0;
+		dash = 0;
+		arg_start = 2 + strlen(opts[php_optidx].opt_name);
+	} else {
+		if (!dash) {
+			dash = 1;
+			optchr = 1;
+		}
+		/* Check if the guy tries to do a -: kind of flag */
+		if (argv[*optind][optchr] == ':') {
+			dash = 0;
+			(*optind)++;
+			return (php_opt_error(argc, argv, *optind-1, optchr, OPTERRCOLON, show_err));
+		}
+		arg_start = 1 + optchr;
+	}
+	if (php_optidx < 0) {
+		while (1) {
+			php_optidx++;
+			if (opts[php_optidx].opt_char == '-') {
+				int errind = *optind;
+				int errchr = optchr;
+
+				if (!argv[*optind][optchr+1]) {
+					dash = 0;
+					(*optind)++;
+				} else {
+					optchr++;
+					arg_start++;
+				}
+				return(php_opt_error(argc, argv, errind, errchr, OPTERRNF, show_err));
+			} else if (argv[*optind][optchr] == opts[php_optidx].opt_char) {
+				break;
+			}
+		}
+	}
+	if (opts[php_optidx].need_param) {
+		/* Check for cases where the value of the argument
+		is in the form -<arg> <val> or in the form -<arg><val> */
+		dash = 0;
+		if (!argv[*optind][arg_start]) {
+			(*optind)++;
+			if (*optind == argc) {
+				return(php_opt_error(argc, argv, *optind-1, optchr, OPTERRARG, show_err));
+			}
+			*optarg = argv[(*optind)++];
+		} else {
+			*optarg = &argv[*optind][arg_start];
+			(*optind)++;
+		}
+		return opts[php_optidx].opt_char;
+	} else {
+		/* multiple options specified as one (exclude long opts) */
+		if (arg_start >= 2 && !((argv[*optind][0] == '-') && (argv[*optind][1] == '-'))) {
+			if (!argv[*optind][optchr+1])
+			{
+				dash = 0;
+				(*optind)++;
+			} else {
+				optchr++;
+			}
+		} else {
+			(*optind)++;
+		}
+		return opts[php_optidx].opt_char;
+	}
+	assert(0);
+	return(0);	/* never reached */
+}
+/* }}} */
+
+/*
+ * Local variables:
+ * tab-width: 4
+ * c-basic-offset: 4
+ * End:
+ * vim600: sw=4 ts=4 fdm=marker
+ * vim<600: sw=4 ts=4
+ */