📄 it.php
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<?php//// +----------------------------------------------------------------------+// | PHP Version 4 |// +----------------------------------------------------------------------+// | Copyright (c) 1997-2003 The PHP Group |// +----------------------------------------------------------------------+// | This source file is subject to version 2.02 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: Ulf Wendel <ulf.wendel@phpdoc.de> |// +----------------------------------------------------------------------+//// $Id: IT.php,v 1.6 2003/03/12 02:25:16 pajoye Exp $//require_once('PEAR.php');define("IT_OK", 1);define("IT_ERROR", -1);define("IT_TPL_NOT_FOUND", -2);define("IT_BLOCK_NOT_FOUND", -3);define("IT_BLOCK_DUPLICATE", -4);define('IT_UNKNOWN_OPTION', -6);/** * Integrated Template - IT * * Well there's not much to say about it. I needed a template class that * supports a single template file with multiple (nested) blocks inside and * a simple block API. * * The Isotemplate API is somewhat tricky for a beginner although it is the best * one you can build. template::parse() [phplib template = Isotemplate] requests * you to name a source and a target where the current block gets parsed into. * Source and target can be block names or even handler names. This API gives you * a maximum of fexibility but you always have to know what you do which is * quite unusual for php skripter like me. * * I noticed that I do not any control on which block gets parsed into which one. * If all blocks are within one file, the script knows how they are nested and in * which way you have to parse them. IT knows that inner1 is a child of block2, there's * no need to tell him about this. * * <table border> * <tr> * <td colspan=2> * __global__ * <p> * (hidden and automatically added) * </td> * </tr> * <tr> * <td>block1</td> * <td> * <table border> * <tr> * <td colspan=2>block2</td> * </tr> * <tr> * <td>inner1</td> * <td>inner2</td> * </tr> * </table> * </td> * </tr> * </table> * * To add content to block1 you simply type: * <code>$tpl->setCurrentBlock("block1");</code> * and repeat this as often as needed: * <code> * $tpl->setVariable(...); * $tpl->parseCurrentBlock(); * </code> * * To add content to block2 you would type something like: * <code> * $tpl->setCurrentBlock("inner1"); * $tpl->setVariable(...); * $tpl->parseCurrentBlock(); * * $tpl->setVariable(...); * $tpl->parseCurrentBlock(); * * $tpl->parse("block1"); * </code> * * This will result in one repition of block1 which contains two repitions * of inner1. inner2 will be removed if $removeEmptyBlock is set to true which is the default. * * Usage: * <code> * $tpl = new HTML_Template_IT( [string filerootdir] ); * * // load a template or set it with setTemplate() * $tpl->loadTemplatefile( string filename [, boolean removeUnknownVariables, boolean removeEmptyBlocks] ) * * // set "global" Variables meaning variables not beeing within a (inner) block * $tpl->setVariable( string variablename, mixed value ); * * // like with the Isotemplates there's a second way to use setVariable() * $tpl->setVariable( array ( string varname => mixed value ) ); * * // Let's use any block, even a deeply nested one * $tpl->setCurrentBlock( string blockname ); * * // repeat this as often as you need it. * $tpl->setVariable( array ( string varname => mixed value ) ); * $tpl->parseCurrentBlock(); * * // get the parsed template or print it: $tpl->show() * $tpl->get(); * </code> * * @author Ulf Wendel <uw@netuse.de> * @version $Id: IT.php,v 1.6 2003/03/12 02:25:16 pajoye Exp $ * @access public * @package HTML_Template_IT */class HTML_Template_IT { /** * Contains the error objects * @var array * @access public * @see halt(), $printError, $haltOnError */ var $err = array(); /** * Clear cache on get()? * @var boolean */ var $clearCache = false; /** * First character of a variable placeholder ( _{_VARIABLE} ). * @var string * @access public * @see $closingDelimiter, $blocknameRegExp, $variablenameRegExp */ var $openingDelimiter = "{"; /** * Last character of a variable placeholder ( {VARIABLE_}_ ). * @var string * @access public * @see $openingDelimiter, $blocknameRegExp, $variablenameRegExp */ var $closingDelimiter = "}"; /** * RegExp matching a block in the template. * Per default "sm" is used as the regexp modifier, "i" is missing. * That means a case sensitive search is done. * @var string * @access public * @see $variablenameRegExp, $openingDelimiter, $closingDelimiter */ var $blocknameRegExp = "[0-9A-Za-z_-]+"; /** * RegExp matching a variable placeholder in the template. * Per default "sm" is used as the regexp modifier, "i" is missing. * That means a case sensitive search is done. * @var string * @access public * @see $blocknameRegExp, $openingDelimiter, $closingDelimiter */ var $variablenameRegExp = "[0-9A-Za-z_-]+"; /** * RegExp used to find variable placeholder, filled by the constructor. * @var string Looks somewhat like @(delimiter varname delimiter)@ * @access public * @see IntegratedTemplate() */ var $variablesRegExp = ""; /** * RegExp used to strip unused variable placeholder. * @brother $variablesRegExp */ var $removeVariablesRegExp = ""; /** * Controls the handling of unknown variables, default is remove. * @var boolean * @access public */ var $removeUnknownVariables = true; /** * Controls the handling of empty blocks, default is remove. * @var boolean * @access public */ var $removeEmptyBlocks = true; /** * RegExp used to find blocks an their content, filled by the constructor. * @var string * @see IntegratedTemplate() */ var $blockRegExp = ""; /** * Name of the current block. * @var string */ var $currentBlock = "__global__"; /** * Content of the template. * @var string */ var $template = ""; /** * Array of all blocks and their content. * * @var array * @see findBlocks() */ var $blocklist = array(); /** * Array with the parsed content of a block. * * @var array */ var $blockdata = array(); /** * Array of variables in a block. * @var array */ var $blockvariables = array(); /** * Array of inner blocks of a block. * @var array */ var $blockinner = array(); /** * List of blocks to preverse even if they are "empty". * * This is something special. Sometimes you have blocks that * should be preserved although they are empty (no placeholder replaced). * Think of a shopping basket. If it's empty you have to drop a message to * the user. If it's filled you have to show the contents of * the shopping baseket. Now where do you place the message that the basket * is empty? It's no good idea to place it in you applications as customers * tend to like unecessary minor text changes. Having another template file * for an empty basket means that it's very likely that one fine day * the filled and empty basket templates have different layout. I decided * to introduce blocks that to not contain any placeholder but only * text such as the message "Your shopping basked is empty". * * Now if there is no replacement done in such a block the block will * be recognized as "empty" and by default ($removeEmptyBlocks = true) be * stripped off. To avoid thisyou can now call touchBlock() to avoid this. * * The array $touchedBlocks stores a list of touched block which must not * be removed even if they are empty. * * @var array $touchedBlocks * @see touchBlock(), $removeEmptyBlocks */ var $touchedBlocks = array(); /** * List of blocks which should not be shown even if not "empty" * @var array $_hiddenBlocks * @see hideBlock(), $removeEmptyBlocks */ var $_hiddenBlocks = array(); /** * Variable cache. * * Variables get cached before any replacement is done. * Advantage: empty blocks can be removed automatically. * Disadvantage: might take some more memory * * @var array * @see setVariable(), $clearCacheOnParse */ var $variableCache = array(); /** * Clear the variable cache on parse? * * If you're not an expert just leave the default false. * True reduces memory consumption somewhat if you tend to * add lots of values for unknown placeholder. * * @var boolean */ var $clearCacheOnParse = false; /** * Root directory for all file operations. * The string gets prefixed to all filenames given. * @var string * @see HTML_Template_IT(), setRoot() */ var $fileRoot = ""; /** * Internal flag indicating that a blockname was used multiple times. * @var boolean */ var $flagBlocktrouble = false; /** * Flag indicating that the global block was parsed. * @var boolean */ var $flagGlobalParsed = false; /** * EXPERIMENTAL! FIXME! * Flag indication that a template gets cached. * * Complex templates require some times to be preparsed * before the replacement can take place. Often I use * one template file over and over again but I don't know * before that I will use the same template file again. * Now IT could notice this and skip the preparse. * * @var boolean */ var $flagCacheTemplatefile = true;
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