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- <?php
- // +----------------------------------------------------------------------+
- // | PHP Version 4 |
- // +----------------------------------------------------------------------+
- // | Copyright (c) 1997-2003 The PHP Group |
- // +----------------------------------------------------------------------+
- // | This source file is subject to version 2.0 of the PHP license, |
- // | that is bundled with this package in the file LICENSE, and is |
- // | available at through the world-wide-web at |
- // | http://www.php.net/license/2_02.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: Bertrand Mansion <bmansion@mamasam.com> |
- // +----------------------------------------------------------------------+
- //
- // $Id: IniCommented.php,v 1.16 2003/11/29 10:44:39 mansion Exp $
-
- /**
- * Config parser for PHP .ini files with comments
- *
- * @author Bertrand Mansion <bmansion@mamasam.com>
- * @package Config
- */
- class Config_Container_IniCommented {
-
- /**
- * This class options
- * Not used at the moment
- *
- * @var array
- */
- var $options = array();
-
- /**
- * Constructor
- *
- * @access public
- * @param string $options (optional)Options to be used by renderer
- */
- function Config_Container_IniCommented($options = array())
- {
- $this->options = $options;
- } // end constructor
-
- /**
- * Parses the data of the given configuration file
- *
- * @access public
- * @param string $datasrc path to the configuration file
- * @param object $obj reference to a config object
- * @return mixed returns a PEAR_ERROR, if error occurs or true if ok
- */
- function &parseDatasrc($datasrc, &$obj)
- {
- if (!file_exists($datasrc)) {
- return PEAR::raiseError("Datasource file does not exist.", null, PEAR_ERROR_RETURN);
- }
- $lines = file($datasrc);
- $n = 0;
- $lastline = '';
- $currentSection =& $obj->container;
- foreach ($lines as $line) {
- $n++;
- if (preg_match('/^\s*;(.*?)\s*$/', $line, $match)) {
- // a comment
- $currentSection->createComment($match[1]);
- } elseif (preg_match('/^\s*$/', $line)) {
- // a blank line
- $currentSection->createBlank();
- } elseif (preg_match('/^\s*([a-zA-Z0-9_\-\.]*)\s*=\s*(.*)\s*$/', $line, $match)) {
- // a directive
-
- $values = $this->_quoteAndCommaParser($match[2]);
- if (PEAR::isError($values)) {
- return PEAR::raiseError($values);
- }
-
- if (count($values)) {
- foreach($values as $value) {
- if ($value[0] == 'normal') {
- $currentSection->createDirective($match[1], $value[1]);
- }
- if ($value[0] == 'comment') {
- $currentSection->createComment(substr($value[1], 1));
- }
- }
- }
- } elseif (preg_match('/^\s*\[\s*(.*)\s*\]\s*$/', $line, $match)) {
- // a section
- $currentSection =& $obj->container->createSection($match[1]);
- } else {
- return PEAR::raiseError("Syntax error in '$datasrc' at line $n.", null, PEAR_ERROR_RETURN);
- }
- }
- return true;
- } // end func parseDatasrc
-
- /**
- * Quote and Comma Parser for INI files
- *
- * This function allows complex values such as:
- *
- * <samp>
- * mydirective = "Item, number \"1\"", Item 2 ; "This" is really, really tricky
- * </samp>
- * @param string $text value of a directive to parse for quotes/multiple values
- * @return array The array returned contains multiple values, if any (unquoted literals
- * to be used as is), and a comment, if any. The format of the array is:
- *
- * <pre>
- * array(array('normal', 'first value'),
- * array('normal', 'next value'),...
- * array('comment', '; comment with leading ;'))
- * </pre>
- * @author Greg Beaver <cellog@users.sourceforge.net>
- * @access private
- */
- function _quoteAndCommaParser($text)
- {
- $text = trim($text);
- if ($text == '') {
- return array();
- }
-
- // tokens
- $tokens['normal'] = array('"', ';', ',');
- $tokens['quote'] = array('"', '\\');
- $tokens['escape'] = false; // cycle
- $tokens['after_quote'] = array(',', ';');
-
- // events
- $events['normal'] = array('"' => 'quote', ';' => 'comment', ',' => 'normal');
- $events['quote'] = array('"' => 'after_quote', '\\' => 'escape');
- $events['after_quote'] = array(',' => 'normal', ';' => 'comment');
-
- // state stack
- $stack = array();
- // return information
- $return = array();
- $returnpos = 0;
- $returntype = 'normal';
- // initialize
- array_push($stack, 'normal');
- $pos = 0; // position in $text
- do {
- $char = $text{$pos};
- $state = $this->_getQACEvent($stack);
-
- if ($tokens[$state]) {
- if (in_array($char, $tokens[$state])) {
- switch($events[$state][$char]) {
- case 'quote' :
- if ($state == 'normal' &&
- isset($return[$returnpos]) &&
- !empty($return[$returnpos][1])) {
- return PEAR::raiseError("invalid ini syntax, quotes cannot follow text '$text'",
- null, PEAR_ERROR_RETURN);
- }
- if ($returnpos >= 0) {
- // trim any unnecessary whitespace in earlier entries
- $return[$returnpos][1] = trim($return[$returnpos][1]);
- } else {
- $returnpos++;
- }
- $return[$returnpos] = array('normal', '');
- array_push($stack, 'quote');
- continue 2;
- break;
- case 'comment' :
- // comments go to the end of the line, so we are done
- $return[++$returnpos] = array('comment', substr($text, $pos));
- return $return;
- break;
- case 'after_quote' :
- array_push($stack, 'after_quote');
- break;
- case 'escape' :
- // don't save the first slash
- array_push($stack, 'escape');
- continue 2;
- break;
- case 'normal' :
- // start a new segment
- if ($state == 'normal') {
- $returnpos++;
- continue 2;
- } else {
- while ($state != 'normal') {
- array_pop($stack);
- $state = $this->_getQACEvent($stack);
- }
- }
- break;
- default :
- PEAR::raiseError("::_quoteAndCommaParser oops, state missing", null, PEAR_ERROR_DIE);
- break;
- }
- } else {
- if ($state != 'after_quote') {
- if (!isset($return[$returnpos])) {
- $return[$returnpos] = array('normal', '');
- }
- // add this character to the current ini segment if non-empty, or if in a quote
- if ($state == 'quote') {
- $return[$returnpos][1] .= $char;
- } elseif (!empty($return[$returnpos][1]) ||
- (empty($return[$returnpos][1]) && trim($char) != '')) {
- if (!isset($return[$returnpos])) {
- $return[$returnpos] = array('normal', '');
- }
- $return[$returnpos][1] .= $char;
- }
- } else {
- if (trim($char) != '') {
- return PEAR::raiseError("invalid ini syntax, text after a quote not allowed '$text'",
- null, PEAR_ERROR_RETURN);
- }
- }
- }
- } else {
- // no tokens, so add this one and cycle to previous state
- $return[$returnpos][1] .= $char;
- array_pop($stack);
- }
- } while (++$pos < strlen($text));
- return $return;
- } // end func _quoteAndCommaParser
-
- /**
- * Retrieve the state off of a state stack for the Quote and Comma Parser
- * @param array $stack The parser state stack
- * @author Greg Beaver <cellog@users.sourceforge.net>
- * @access private
- */
- function _getQACEvent($stack)
- {
- return array_pop($stack);
- } // end func _getQACEvent
-
- /**
- * Returns a formatted string of the object
- * @param object $obj Container object to be output as string
- * @access public
- * @return string
- */
- function toString(&$obj)
- {
- static $childrenCount, $commaString;
-
- if (!isset($string)) {
- $string = '';
- }
- switch ($obj->type) {
- case 'blank':
- $string = "\n";
- break;
- case 'comment':
- $string = ';'.$obj->content."\n";
- break;
- case 'directive':
- $count = $obj->parent->countChildren('directive', $obj->name);
- $content = $obj->content;
- if ($content === false) {
- $content = '0';
- } elseif ($content === true) {
- $content = '1';
- } elseif (strlen(trim($content)) < strlen($content) ||
- strpos($content, ',') !== false ||
- strpos($content, ';') !== false ||
- strpos($content, '"') !== false ||
- strpos($content, '%') !== false) {
- $content = '"'.addslashes($content).'"';
- }
- if ($count > 1) {
- // multiple values for a directive are separated by a comma
- if (isset($childrenCount[$obj->name])) {
- $childrenCount[$obj->name]++;
- } else {
- $childrenCount[$obj->name] = 0;
- $commaString[$obj->name] = $obj->name.'=';
- }
- if ($childrenCount[$obj->name] == $count-1) {
- // Clean the static for future calls to toString
- $string .= $commaString[$obj->name].$content."\n";
- unset($childrenCount[$obj->name]);
- unset($commaString[$obj->name]);
- } else {
- $commaString[$obj->name] .= $content.', ';
- }
- } else {
- $string = $obj->name.'='.$content."\n";
- }
- break;
- case 'section':
- if (!$obj->isRoot()) {
- $string = '['.$obj->name."]\n";
- }
- if (count($obj->children) > 0) {
- for ($i = 0; $i < count($obj->children); $i++) {
- $string .= $this->toString($obj->getChild($i));
- }
- }
- break;
- default:
- $string = '';
- }
- return $string;
- } // end func toString
- } // end class Config_Container_IniCommented
- ?>