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-rw-r--r--extlib/Console/Getopt.php290
1 files changed, 290 insertions, 0 deletions
diff --git a/extlib/Console/Getopt.php b/extlib/Console/Getopt.php
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+<?php
+/* vim: set expandtab tabstop=4 shiftwidth=4: */
+// +----------------------------------------------------------------------+
+// | PHP Version 5 |
+// +----------------------------------------------------------------------+
+// | Copyright (c) 1997-2004 The PHP Group |
+// +----------------------------------------------------------------------+
+// | This source file is subject to version 3.0 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_0.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: Andrei Zmievski <andrei@php.net> |
+// +----------------------------------------------------------------------+
+//
+// $Id: Getopt.php,v 1.4 2007/06/12 14:58:56 cellog Exp $
+
+require_once 'PEAR.php';
+
+/**
+ * Command-line options parsing class.
+ *
+ * @author Andrei Zmievski <andrei@php.net>
+ *
+ */
+class Console_Getopt {
+ /**
+ * Parses the command-line options.
+ *
+ * The first parameter to this function should be the list of command-line
+ * arguments without the leading reference to the running program.
+ *
+ * The second parameter is a string of allowed short options. Each of the
+ * option letters can be followed by a colon ':' to specify that the option
+ * requires an argument, or a double colon '::' to specify that the option
+ * takes an optional argument.
+ *
+ * The third argument is an optional array of allowed long options. The
+ * leading '--' should not be included in the option name. Options that
+ * require an argument should be followed by '=', and options that take an
+ * option argument should be followed by '=='.
+ *
+ * The return value is an array of two elements: the list of parsed
+ * options and the list of non-option command-line arguments. Each entry in
+ * the list of parsed options is a pair of elements - the first one
+ * specifies the option, and the second one specifies the option argument,
+ * if there was one.
+ *
+ * Long and short options can be mixed.
+ *
+ * Most of the semantics of this function are based on GNU getopt_long().
+ *
+ * @param array $args an array of command-line arguments
+ * @param string $short_options specifies the list of allowed short options
+ * @param array $long_options specifies the list of allowed long options
+ *
+ * @return array two-element array containing the list of parsed options and
+ * the non-option arguments
+ *
+ * @access public
+ *
+ */
+ function getopt2($args, $short_options, $long_options = null)
+ {
+ return Console_Getopt::doGetopt(2, $args, $short_options, $long_options);
+ }
+
+ /**
+ * This function expects $args to start with the script name (POSIX-style).
+ * Preserved for backwards compatibility.
+ * @see getopt2()
+ */
+ function getopt($args, $short_options, $long_options = null)
+ {
+ return Console_Getopt::doGetopt(1, $args, $short_options, $long_options);
+ }
+
+ /**
+ * The actual implementation of the argument parsing code.
+ */
+ function doGetopt($version, $args, $short_options, $long_options = null)
+ {
+ // in case you pass directly readPHPArgv() as the first arg
+ if (PEAR::isError($args)) {
+ return $args;
+ }
+ if (empty($args)) {
+ return array(array(), array());
+ }
+ $opts = array();
+ $non_opts = array();
+
+ settype($args, 'array');
+
+ if ($long_options) {
+ sort($long_options);
+ }
+
+ /*
+ * Preserve backwards compatibility with callers that relied on
+ * erroneous POSIX fix.
+ */
+ if ($version < 2) {
+ if (isset($args[0]{0}) && $args[0]{0} != '-') {
+ array_shift($args);
+ }
+ }
+
+ reset($args);
+ while (list($i, $arg) = each($args)) {
+
+ /* The special element '--' means explicit end of
+ options. Treat the rest of the arguments as non-options
+ and end the loop. */
+ if ($arg == '--') {
+ $non_opts = array_merge($non_opts, array_slice($args, $i + 1));
+ break;
+ }
+
+ if ($arg{0} != '-' || (strlen($arg) > 1 && $arg{1} == '-' && !$long_options)) {
+ $non_opts = array_merge($non_opts, array_slice($args, $i));
+ break;
+ } elseif (strlen($arg) > 1 && $arg{1} == '-') {
+ $error = Console_Getopt::_parseLongOption(substr($arg, 2), $long_options, $opts, $args);
+ if (PEAR::isError($error))
+ return $error;
+ } elseif ($arg == '-') {
+ // - is stdin
+ $non_opts = array_merge($non_opts, array_slice($args, $i));
+ break;
+ } else {
+ $error = Console_Getopt::_parseShortOption(substr($arg, 1), $short_options, $opts, $args);
+ if (PEAR::isError($error))
+ return $error;
+ }
+ }
+
+ return array($opts, $non_opts);
+ }
+
+ /**
+ * @access private
+ *
+ */
+ function _parseShortOption($arg, $short_options, &$opts, &$args)
+ {
+ for ($i = 0; $i < strlen($arg); $i++) {
+ $opt = $arg{$i};
+ $opt_arg = null;
+
+ /* Try to find the short option in the specifier string. */
+ if (($spec = strstr($short_options, $opt)) === false || $arg{$i} == ':')
+ {
+ return PEAR::raiseError("Console_Getopt: unrecognized option -- $opt");
+ }
+
+ if (strlen($spec) > 1 && $spec{1} == ':') {
+ if (strlen($spec) > 2 && $spec{2} == ':') {
+ if ($i + 1 < strlen($arg)) {
+ /* Option takes an optional argument. Use the remainder of
+ the arg string if there is anything left. */
+ $opts[] = array($opt, substr($arg, $i + 1));
+ break;
+ }
+ } else {
+ /* Option requires an argument. Use the remainder of the arg
+ string if there is anything left. */
+ if ($i + 1 < strlen($arg)) {
+ $opts[] = array($opt, substr($arg, $i + 1));
+ break;
+ } else if (list(, $opt_arg) = each($args)) {
+ /* Else use the next argument. */;
+ if (Console_Getopt::_isShortOpt($opt_arg) || Console_Getopt::_isLongOpt($opt_arg)) {
+ return PEAR::raiseError("Console_Getopt: option requires an argument -- $opt");
+ }
+ } else {
+ return PEAR::raiseError("Console_Getopt: option requires an argument -- $opt");
+ }
+ }
+ }
+
+ $opts[] = array($opt, $opt_arg);
+ }
+ }
+
+ /**
+ * @access private
+ *
+ */
+ function _isShortOpt($arg)
+ {
+ return strlen($arg) == 2 && $arg[0] == '-' && preg_match('/[a-zA-Z]/', $arg[1]);
+ }
+
+ /**
+ * @access private
+ *
+ */
+ function _isLongOpt($arg)
+ {
+ return strlen($arg) > 2 && $arg[0] == '-' && $arg[1] == '-' &&
+ preg_match('/[a-zA-Z]+$/', substr($arg, 2));
+ }
+
+ /**
+ * @access private
+ *
+ */
+ function _parseLongOption($arg, $long_options, &$opts, &$args)
+ {
+ @list($opt, $opt_arg) = explode('=', $arg, 2);
+ $opt_len = strlen($opt);
+
+ for ($i = 0; $i < count($long_options); $i++) {
+ $long_opt = $long_options[$i];
+ $opt_start = substr($long_opt, 0, $opt_len);
+ $long_opt_name = str_replace('=', '', $long_opt);
+
+ /* Option doesn't match. Go on to the next one. */
+ if ($long_opt_name != $opt) {
+ continue;
+ }
+
+ $opt_rest = substr($long_opt, $opt_len);
+
+ /* Check that the options uniquely matches one of the allowed
+ options. */
+ if ($i + 1 < count($long_options)) {
+ $next_option_rest = substr($long_options[$i + 1], $opt_len);
+ } else {
+ $next_option_rest = '';
+ }
+ if ($opt_rest != '' && $opt{0} != '=' &&
+ $i + 1 < count($long_options) &&
+ $opt == substr($long_options[$i+1], 0, $opt_len) &&
+ $next_option_rest != '' &&
+ $next_option_rest{0} != '=') {
+ return PEAR::raiseError("Console_Getopt: option --$opt is ambiguous");
+ }
+
+ if (substr($long_opt, -1) == '=') {
+ if (substr($long_opt, -2) != '==') {
+ /* Long option requires an argument.
+ Take the next argument if one wasn't specified. */;
+ if (!strlen($opt_arg) && !(list(, $opt_arg) = each($args))) {
+ return PEAR::raiseError("Console_Getopt: option --$opt requires an argument");
+ }
+ if (Console_Getopt::_isShortOpt($opt_arg) || Console_Getopt::_isLongOpt($opt_arg)) {
+ return PEAR::raiseError("Console_Getopt: option requires an argument --$opt");
+ }
+ }
+ } else if ($opt_arg) {
+ return PEAR::raiseError("Console_Getopt: option --$opt doesn't allow an argument");
+ }
+
+ $opts[] = array('--' . $opt, $opt_arg);
+ return;
+ }
+
+ return PEAR::raiseError("Console_Getopt: unrecognized option --$opt");
+ }
+
+ /**
+ * Safely read the $argv PHP array across different PHP configurations.
+ * Will take care on register_globals and register_argc_argv ini directives
+ *
+ * @access public
+ * @return mixed the $argv PHP array or PEAR error if not registered
+ */
+ function readPHPArgv()
+ {
+ global $argv;
+ if (!is_array($argv)) {
+ if (!@is_array($_SERVER['argv'])) {
+ if (!@is_array($GLOBALS['HTTP_SERVER_VARS']['argv'])) {
+ return PEAR::raiseError("Console_Getopt: Could not read cmd args (register_argc_argv=Off?)");
+ }
+ return $GLOBALS['HTTP_SERVER_VARS']['argv'];
+ }
+ return $_SERVER['argv'];
+ }
+ return $argv;
+ }
+
+}
+
+?>
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