BaseActions.php

Go to the documentation of this file.

<?php
/*
 * Nucleus: PHP/MySQL Weblog CMS (http://nucleuscms.org/)
 * Copyright (C) 2002-2007 The Nucleus Group
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * (see nucleus/documentation/index.html#license for more info)
 */
class BaseActions {

        // depth level for includes (max. level is 3)
        var $level;

        // array of evaluated conditions (true/false). The element at the end is the one for the most nested
        // if block.
        var $if_conditions;

        // in the "elseif" / "elseifnot" sequences, if one of the conditions become "true" remained conditions should not
        // be tested. this variable (actually a stack) holds this information.
        var $if_execute;

        // at all times, can be evaluated to either true if the current block needs to be displayed. This
        // variable is used to decide to skip skinvars in parts that will never be outputted.
        var $if_currentlevel;

        // contains a search string with keywords that need to be highlighted. These get parsed into $aHighlight
        var $strHighlight;

        // array of keywords that need to be highlighted in search results (see the highlight()
        // and parseHighlight() methods)
        var $aHighlight;

        // reference to the parser object that is using this object as actions-handler
        var $parser;

        function BaseActions() {
                $this->level = 0;

                // if nesting level
                $this->if_conditions = array(); // array on which condition values are pushed/popped
                $this->if_execute = array();    // array on which condition values are pushed/popped
                $this->if_currentlevel = 1;             // 1 = current level is displayed; 0 = current level not displayed

                // highlights
                $this->strHighlight = '';                       // full highlight
                $this->aHighlight = array();            // parsed highlight

        }

        // include file (no parsing of php)
        function parse_include($filename) {
                @readfile($this->getIncludeFileName($filename));
        }

        // php-include file
        function parse_phpinclude($filename) {
                includephp($this->getIncludeFileName($filename));
        }

        // parsed include
        function parse_parsedinclude($filename) {
                // check current level
                if ($this->level > 3) return;   // max. depth reached (avoid endless loop)
                $filename = $this->getIncludeFileName($filename);
                if (!file_exists($filename)) return '';

                $fsize = filesize($filename);

                // nothing to include
                if ($fsize <= 0)
                        return;

                $this->level = $this->level + 1;

                // read file
                $fd = fopen ($filename, 'r');
                $contents = fread ($fd, $fsize);
                fclose ($fd);

                // parse file contents
                $this->parser->parse($contents);

                $this->level = $this->level - 1;
        }

        function getIncludeFileName($filename) {
                // leave absolute filenames and http urls as they are
                if (
                                (substr($filename,0,1) == '/')
                        ||      (substr($filename,0,7) == 'http://')
                        ||      (substr($filename,0,6) == 'ftp://')
                        )
                        return $filename;

                $filename = PARSER::getProperty('IncludePrefix') . $filename;
                if (PARSER::getProperty('IncludeMode') == 'skindir') {
                        global $DIR_SKINS;
                        return $DIR_SKINS . $filename;
                } else {
                        return $filename;
                }
        }

        function parse_skinfile($filename) {
                global $CONF;

                echo $CONF['SkinsURL'] . PARSER::getProperty('IncludePrefix') . $filename;
        }

        function parse_set($property, $value) {
                PARSER::setProperty($property, $value);
        }

        function _addIfCondition($condition) {

                array_push($this->if_conditions,$condition);

                $this->_updateTopIfCondition();

                ob_start();
        }

        function _updateTopIfCondition() {
                if (sizeof($this->if_conditions) == 0)
                        $this->if_currentlevel = 1;
                else
                        $this->if_currentlevel = $this->if_conditions[sizeof($this->if_conditions) - 1];
        }

        function _addIfExecute() {
                array_push($this->if_execute, 0);
        }

        function _updateIfExecute($condition) {
                $index = sizeof($this->if_execute) - 1;
                $this->if_execute[$index] = $this->if_execute[$index] || $condition;
        }

        function _getTopIfCondition() {
                return $this->if_currentlevel;
        }

        function setHighlight($highlight) {
                $this->strHighlight = $highlight;
                if ($highlight) {
                        $this->aHighlight = parseHighlight($highlight);
                }
        }

        function highlight(&$data) {
                if ($this->aHighlight)
                        return highlight($data,$this->aHighlight,$this->template['SEARCH_HIGHLIGHT']);
                else
                        return $data;
        }

        function parse_if() {
                $this->_addIfExecute();

                $args = func_get_args();
                $condition = call_user_func_array(array(&$this,'checkCondition'), $args);
                $this->_addIfCondition($condition);
        }

        function parse_else() {
                if (sizeof($this->if_conditions) == 0) return;
                array_pop($this->if_conditions);
                if ($this->if_currentlevel) {
                        ob_end_flush();
                        $this->_updateIfExecute(1);
                        $this->_addIfCondition(0);
                } elseif ($this->if_execute[sizeof($this->if_execute) - 1]) {
                        ob_end_clean();
                        $this->_addIfCondition(0);
                } else {
                        ob_end_clean();
                        $this->_addIfCondition(1);
                }
        }

        function parse_elseif() {
                if (sizeof($this->if_conditions) == 0) return;
                array_pop($this->if_conditions);
                if ($this->if_currentlevel) {
                        ob_end_flush();
                        $this->_updateIfExecute(1);
                        $this->_addIfCondition(0);
                } elseif ($this->if_execute[sizeof($this->if_execute) - 1]) {
                        ob_end_clean();
                        $this->_addIfCondition(0);
                } else {
                        ob_end_clean();
                        $args = func_get_args();
                        $condition = call_user_func_array(array(&$this,'checkCondition'), $args);
                        $this->_addIfCondition($condition);
                }
        }

        function parse_ifnot() {
                $this->_addIfExecute();

                $args = func_get_args();
                $condition = call_user_func_array(array(&$this,'checkCondition'), $args);
                $this->_addIfCondition(!$condition);
        }

        function parse_elseifnot() {
                if (sizeof($this->if_conditions) == 0) return;
                array_pop($this->if_conditions);
                if ($this->if_currentlevel) {
                        ob_end_flush();
                        $this->_updateIfExecute(1);
                        $this->_addIfCondition(0);
                } elseif ($this->if_execute[sizeof($this->if_execute) - 1]) {
                        ob_end_clean();
                        $this->_addIfCondition(0);
                } else {
                        ob_end_clean();
                        $args = func_get_args();
                        $condition = call_user_func_array(array(&$this,'checkCondition'), $args);
                        $this->_addIfCondition(!$condition);
                }
        }

        function parse_endif() {
                // we can only close what has been opened
                if (sizeof($this->if_conditions) == 0) return;

                if ($this->if_currentlevel) {
                        ob_end_flush();
                } else {
                        ob_end_clean();
                }
                array_pop($this->if_conditions);
                array_pop($this->if_execute);

                $this->_updateTopIfCondition();
        }
}
?>

---

• ソフトウェア開発
• ホームページ制作
• Doxygen版
• Tcl版
• STLport版
• Dradnats C++ Library
• 要約文庫