Oldest found template.php version (for history)
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<?php
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/***************************************************************************
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* template.php
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* -------------------
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* begin : Saturday, Feb 13, 2001
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* change : Thirsday, Aug 03, 2006
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* copyright : (C) 2001 The phpBB Group + VMX
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* email : vmx@yourcmc.ru
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*
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***************************************************************************/
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/***************************************************************************
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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***************************************************************************/
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/**
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* Template class. By Nathan Codding of the phpBB group.
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* The interface was originally inspired by PHPLib templates,
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* and the template file formats are quite similar.
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*
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* 2006 - Corrected and modified by Vitali Filippov [VMX]
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*/
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/**
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* Documentation:
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* <!-- BEGIN * --> and <!-- END * --> can be placed on one line
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* {block_name.block_name.etc....varname} = varref varname of current iteration of block block_name.block_name.etc...
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* {block_name.block_name.etc....varname|varoption} = varref varname if it's set or block_name.block_name.etc....varoption if not
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* {block_name.#} = number of current iteration of block block_name
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* <!-- BEGIN block_name --> = begin block block_name, blocks can be nested
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* <!-- END block_name --> = end block
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* <!-- INCLUDE filename --> = include file "filename" directly at this point (path relative to current template file path)
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* <!-- BEGIN block_name AT #start[ #count] --> = begin block_name at iteration #start and do #count iterations (or 1 by default)
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* <!-- BEGIN block_name MOD #div #mod --> = do block_name iterations with numbers #no if (#no % #div) = #mod
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*
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* Документация:
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* {VAR} - подстановка корневой переменной VAR
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* <!-- INCLUDE filename --> = дословное включение файла "filename"
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* <!-- BEGIN блок1 --> = обработать в цикле все итерации блока "блок1"
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* <!-- BEGIN блок1 AT <начало>[ <количество>] --> = обработать в цикле <количество> (или все оставшиеся если <количество> не задано) итераций блока "блок1"
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* <!-- BEGIN блок1 MOD <делитель> <остаток> --> = обработать в цикле все итерации блока "блок1", номера которых по модулю <делитель> равны <остаток>
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* <!-- END блок1 --> = конец тела цикла
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* Блоки могут быть вложенными, <!-- BEGIN ... --> и <!-- END ... --> могут быть расположены на одной строке.
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* Подстановки внутриблоковых переменных работают внутри блока :)
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* {блок1.блок2.и_так_далее.VAR} = подстановка переменной VAR блока "блок1.блок2.и_так_далее"
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* {и_так_далее.#} = номер текущей итерации блока "блок1.блок2.и_так_далее", если "и_так_далее" сейчас вложен в "блок1.блок2"
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* {блок1.блок2.и_так_далее.VAR|VAR2} = подстановка переменной VAR, а если она не задана - то VAR2 блока "блок1.блок2.и_так_далее"
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* <!--# Комментарий, не попадающий в выходной HTML файл #-->
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*/
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class Template
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{
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var $classname = "Template";
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// set this variable to cache directory and template compiler will use caching
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var $cachedir = false;
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// variable that holds all the data we'll be substituting into
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// the compiled templates.
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// ...
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// This will end up being a multi-dimensional array like this:
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// $this->_tpldata[block.][iteration#][child.][iteration#][child2.][iteration#][variablename] == value
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// if it's a root-level variable, it'll be like this:
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// $this->_tpldata[.][0][varname] == value
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var $_tpldata = array();
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// Hash of filenames for each template handle.
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var $files = array();
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// Root template directory.
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var $root = "";
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// this will hash handle names to the compiled code for that handle.
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var $compiled_code = array();
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// This will hold the uncompiled code for that handle.
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var $uncompiled_code = array();
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// This option causes pparse() to be equal to "echo rparse()"
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var $no_pparse = false;
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// Set this to the name of "wrapper" function, which is called by
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// rparse() after compiling and running.
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var $wrapper = false;
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/**
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* Constructor. Simply sets the root dir.
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*/
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function Template($root = ".")
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{
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$this->set_rootdir($root);
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}
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/**
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* Destroys this template object. Should be called when you're done with it, in order
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* to clear out the template data so you can load/parse a new template set.
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*/
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function destroy()
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{
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$this->_tpldata = array();
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}
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/**
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* Sets the template root directory for this Template object.
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*/
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function set_rootdir($dir)
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{
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if (!is_dir($dir))
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return false;
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$this->root = $dir;
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return true;
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}
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/**
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* Sets the template filenames for handles. $filename_array
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* should be a hash of handle => filename pairs.
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*/
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function set_filenames($filename_array)
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{
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if (!is_array($filename_array))
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return false;
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reset($filename_array);
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while(list($handle, $filename) = each($filename_array))
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$this->files[$handle] = $this->make_filename($filename);
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return true;
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}
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/**
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* Sets the template code for handle directly, without loading it from any files.
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*/
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function set_template_code ($handle, $code)
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{
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$this->files[$handle] = false;
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$this->uncompiled_code[$handle] = $code;
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unset ($this->compiled_code[$handle]);
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return true;
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}
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/**
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* Load the file for the handle, compile the file,
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* and run the compiled code. This will print out
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* the results of executing the template.
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*/
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function pparse($handle)
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{
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if ($this->no_pparse)
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{
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echo $this->rparse ($handle);
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return;
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}
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if (!$this->loadfile($handle))
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die("Template->pparse(): Couldn't load template file for handle $handle");
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// actually compile the template now.
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if (!isset($this->compiled_code[$handle]) || empty($this->compiled_code[$handle]))
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$this->compiled_code[$handle] = $this->compile($this->uncompiled_code[$handle]);
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//echo ($this->compiled_code[$handle]);
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// Run the compiled code.
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eval($this->compiled_code[$handle]);
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return true;
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}
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/**
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* Load the file for the handle, compile the file,
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* and run the compiled code. This will RETURN
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* the results of executing the template.
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*/
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function rparse ($handle)
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{
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if (!$this->loadfile($handle))
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die("Template->rparse(): Couldn't load template file for handle $handle");
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// Compile it, with the "no echo statements" option on.
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$_str = "";
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$code = $this->compile($this->uncompiled_code[$handle], true, '_str');
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// evaluate the variable assignment.
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eval($code);
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// call wrapper if it's set
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if ($this->wrapper)
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{
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$fn = $this->wrapper;
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$_str = $fn ($_str);
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}
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// return the value of the generated variable.
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return $_str;
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}
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/**
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* Inserts the uncompiled code for $handle as the
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* value of $varname in the root-level. This can be used
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* to effectively include a template in the middle of another
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* template.
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* Note that all desired assignments to the variables in $handle should be done
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* BEFORE calling this function.
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*/
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function assign_var_from_handle($varname, $handle)
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{
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if (!$this->loadfile($handle))
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die("Template->assign_var_from_handle(): Couldn't load template file for handle $handle");
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// Compile it, with the "no echo statements" option on.
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$_str = "";
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$code = $this->compile($this->uncompiled_code[$handle], true, '_str');
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// evaluate the variable assignment.
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eval($code);
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// assign the value of the generated variable to the given varname.
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$this->assign_var($varname, $_str);
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return true;
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}
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/**
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* Block-level variable assignment. Adds a new block iteration with the given
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* variable assignments. Note that this should only be called once per block
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* iteration.
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*/
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function assign_block_vars($blockname, $vararray)
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{
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if (strstr($blockname, '.'))
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{
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// Nested block.
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$blocks = explode('.', $blockname);
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$blockcount = sizeof($blocks) - 1;
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$str = '$this->_tpldata';
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for ($i = 0; $i < $blockcount; $i++)
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{
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$str .= '[\'' . $blocks[$i] . '.\']';
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eval('$lastiteration = sizeof(' . $str . ') - 1;');
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$str .= '[' . $lastiteration . ']';
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}
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// Now we add the block that we're actually assigning to.
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// We're adding a new iteration to this block with the given
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// variable assignments.
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$str .= '[\'' . $blocks[$blockcount] . '.\'][] = $vararray;';
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// Now we evaluate this assignment we've built up.
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eval($str);
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}
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else
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{
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// Top-level block.
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// Add a new iteration to this block with the variable assignments
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// we were given.
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$this->_tpldata[$blockname . '.'][] = $vararray;
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}
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return true;
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}
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/**
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* Block-level variable assignment. This function does not add any iterations
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* to block, it only appends $vararray to last existing iteration. [VMX 2006]
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*/
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function append_block_vars($blockname, $vararray)
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{
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if (strstr($blockname, '.'))
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{
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// Nested block.
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$blocks = explode('.', $blockname);
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$blockcount = sizeof($blocks);
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$str = '$this->_tpldata';
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for ($i = 0; $i < $blockcount; $i++)
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{
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$str .= '[\'' . $blocks[$i] . '.\']';
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eval('$lastiteration = sizeof(' . $str . ') - 1;');
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$str .= '[' . $lastiteration . ']';
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}
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eval ($str .= ' = array_merge ('.$str.', $vararray);');
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}
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else
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{
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// Top-level block.
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if (($len = count ($this->_tpldata[$blockname . '.'])) > 0)
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$this->_tpldata[$blockname.'.'][$len-1] = array_merge ($this->_tpldata[$blockname . '.'][$len-1], $vararray);
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}
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return true;
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}
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/**
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* Root-level variable assignment. Adds to current assignments, overriding
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* any existing variable assignment with the same name.
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*/
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function assign_vars($vararray)
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{
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reset ($vararray);
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while (list($key, $val) = each($vararray))
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$this->_tpldata['.'][0][$key] = $val;
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return true;
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}
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/**
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* Root-level variable assignment. Adds to current assignments, overriding
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* any existing variable assignment with the same name.
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*/
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function assign_var($varname, $varval)
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{
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$this->_tpldata['.'][0][$varname] = $varval;
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return true;
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}
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/**
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* Generates a full path+filename for the given filename, which can either
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* be an absolute name, or a name relative to the rootdir for this Template
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* object.
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*/
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function make_filename($filename)
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{
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// Check if it's an absolute or relative path.
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if (substr($filename, 0, 1) != '/')
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$filename = $this->root . '/' . $filename;//($rp_filename = phpbb_realpath($this->root . '/' . $filename)) ? $rp_filename : $filename;
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if (!file_exists($filename))
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die("Template->make_filename(): Error - file $filename does not exist");
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return $filename;
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}
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/**
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* If not already done, load the file for the given handle and populate
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* the uncompiled_code[] hash with its code. Do not compile.
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*/
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function loadfile($handle)
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{
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// If the file for this handle is already loaded and compiled, do nothing.
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if (isset($this->uncompiled_code[$handle]) && !empty($this->uncompiled_code[$handle]))
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return true;
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// If we don't have a file assigned to this handle, die.
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if (!isset($this->files[$handle]))
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die("Template->loadfile(): No file specified for handle $handle");
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// << VMX >> if $this->files[$handle] is false - template contents are specified directly
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if ($this->files[$handle] !== false)
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{
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$filename = $this->files[$handle];
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$filepath = substr ($filename, 0, strrpos ($filename, '/')+1);
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$str = @file_get_contents ($filename);
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if (empty($str))
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die("Template->loadfile(): File $filename for handle $handle is empty");
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// Handle <!-- INCLUDE --> instructions
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while (preg_match ('#<!-- INCLUDE (.*) -->#', $str, $m))
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$str = str_replace ($m[0], @file_get_contents ($filepath . $m[1]), $str);
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$this->uncompiled_code[$handle] = $str;
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}
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return true;
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}
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/**
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* Compiles the given string of code, and returns
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* the result in a string.
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* If "do_not_echo" is true, the returned code will not be directly
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* executable, but can be used as part of a variable assignment
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* for use in assign_code_from_handle() or rparse().
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*/
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function compile($code, $do_not_echo = false, $retvar = '')
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{
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if ($this->cachedir)
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{
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$sfile = $this->cachedir . ($do_not_echo ? 'alt_' . $retvar : '') . md5 ($code) . '.tps';
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if (($cached = @file_get_contents ($sfile)) !== false)
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return $cached;
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}
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else
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unset ($sfile);
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$default_addmode = $do_not_echo ? '$' . $retvar . ' .= ' : 'echo ';
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// Сначала <!--# комментарии #-->
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while (preg_match ('%\s*<!--#%', $code, $m, PREG_OFFSET_CAPTURE))
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{
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$p = $m[0][1];
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$l = strlen($m[0][0]);
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if (($p2 = strpos ($code, '#-->', $p+$l)) !== false)
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$code = substr ($code, 0, $p) . substr ($code, $p2+4);
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else
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break;
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}
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// Вытаскиваем <!-- BEGIN --> и <!-- END --> на отдельные "строки"
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$code = str_replace ("\r", "", $code);
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while (preg_match ("#(\n|^)[ \t]*(<!-- (?:BEGIN|END) (?:[^<>]*) -->)[ \t]*(\n|$)#", $code, $m, PREG_OFFSET_CAPTURE))
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{
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$rp = "\x1" . $m[2][0] . "\x1\n";
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$code = substr ($code, 0, $m[0][1]) . $rp . substr ($code, $m[0][1]+strlen($m[0][0]));
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}
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// Собственно говоря, то что выше - чисто для красоты выходного HTML...
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while (preg_match ("#([^\x1])(<!-- (?:BEGIN|END) (?:[^<>]*) -->)#", $code, $m, PREG_OFFSET_CAPTURE))
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$code = preg_replace ("#([^\x1])(<!-- (?:BEGIN|END) (?:[^<>]*) -->)#", "\\1\x1\\2", $code);
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while (preg_match ("#(<!-- (?:BEGIN|END) (?:[^<>]*) -->)([^\x1])#", $code, $m, PREG_OFFSET_CAPTURE))
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$code = preg_replace ("#(<!-- (?:BEGIN|END) (?:[^<>]*) -->)([^\x1])#", "\\1\x1\\2", $code);
|
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// replace \ with \\ and then ' with \'.
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$code = str_replace('\\', '\\\\', $code);
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$code = str_replace('\'', '\\\'', $code);
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// VMX :: handle iteration numbers
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$code = preg_replace ('/\{([a-z0-9\-_]+)\.#\}/', '\'.(1+(isset($_\1_i)?$_\1_i:0)).\'', $code);
|
||||
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||||
// change template varrefs into PHP varrefs
|
||||
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||||
// This one will handle varrefs WITH namespaces
|
||||
$varrefs = array();
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||||
preg_match_all('#\{(([a-z0-9\-_]+?\.)+?)([a-z0-9\-_]+?)(\|([a-z0-9\-_]+?))?\}#is', $code, $varrefs);
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$varcount = sizeof($varrefs[1]);
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for ($i = 0; $i < $varcount; $i++)
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{
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$namespace = $varrefs[1][$i];
|
||||
$varname = $varrefs[3][$i];
|
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if (isset ($varrefs[5][$i]))
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$varoption = $varrefs[5][$i];
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else
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$varoption = false;
|
||||
$new = $this->generate_block_varref($namespace, $varname, $varoption);
|
||||
$code = str_replace($varrefs[0][$i], $new, $code);
|
||||
}
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||||
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||||
// This will handle the remaining root-level varrefs
|
||||
$code = preg_replace('#\{([a-z0-9\-_]*?)\}#is', '\' . ( ( isset($this->_tpldata[\'.\'][0][\'\1\']) ) ? $this->_tpldata[\'.\'][0][\'\1\'] : \'\' ) . \'', $code);
|
||||
|
||||
// replace \n with \n\x1
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$code = str_replace ("\n", "\n\x1", $code);
|
||||
//$code = preg_replace ('#(?:\x1\s*)+\x1#', "\x1", $code);
|
||||
|
||||
// Break code up into lines
|
||||
$code_lines = explode("\x1", $code);
|
||||
// print_r ($code_lines);
|
||||
|
||||
$block_nesting_level = 0;
|
||||
$block_names = array();
|
||||
$block_names[0] = ".";
|
||||
$addmodes[0][0] = $default_addmode;
|
||||
$addmodes[0][1] = ';';
|
||||
$addmodes[0][2] = 0;
|
||||
|
||||
$line_count = sizeof($code_lines);
|
||||
for ($i = 0; $i < $line_count; $i++)
|
||||
{
|
||||
if (strlen ($code_lines[$i]) == 0)
|
||||
continue;
|
||||
// Additional part will handle AT and MOD
|
||||
if (preg_match('#^<!-- BEGIN ([A-Za-z0-9\-_]+?) ([A-Za-z \t\-_0-9]*)-->$#', $code_lines[$i], $m)) // ((APPEND|PREPEND) (([A-Za-z0-9\-_]+?\.)*)([A-Za-z0-9\-_]+?) )?
|
||||
{
|
||||
$n[0] = $m[0];
|
||||
$n[1] = $m[1];
|
||||
|
||||
// We have the start of a block.
|
||||
$block_nesting_level++;
|
||||
$block_names[$block_nesting_level] = $m[1];
|
||||
$addmodes[$block_nesting_level][0] = $default_addmode;
|
||||
$addmodes[$block_nesting_level][1] = ';';
|
||||
$addmodes[$block_nesting_level][2] = 0;
|
||||
$cbstart = 0;
|
||||
$cbcount = false;
|
||||
$cbplus = '++';
|
||||
|
||||
if (preg_match ('#^[ \t]*AT ([0-9]+)[ \t]*(?:([0-9]+)[ \t]*)?$#', $m[2], $nem))
|
||||
{
|
||||
$cbstart = isset ($nem[1]) ? (0+$nem[1]) : 0;
|
||||
$cbcount = (isset ($nem[2]) ? (0+$nem[2]) + $cbstart : false);
|
||||
}
|
||||
if (preg_match ('#^[ \t]*MOD ([1-9][0-9]*) ([0-9]+)[ \t]*$#', $m[2], $nem))
|
||||
{
|
||||
$cbstart = $nem[2];
|
||||
$cbplus = '+='.$nem[1];
|
||||
}
|
||||
|
||||
/*if (isset ($m[3]))
|
||||
{
|
||||
$addmodes[$block_nesting_level][2] = 1;
|
||||
if ($m[3] == 'APPEND')
|
||||
{
|
||||
$addto = substr ($m[4], 0, strlen($m[4]) - 1);
|
||||
$addto = $this->generate_block_data_ref($addto, true) . '[\'' . $m[6] . '\']';
|
||||
$addmodes[$block_nesting_level][0] = 'if (isset (' . $addto . ')) ' . $addto . ' .= ';
|
||||
$addmodes[$block_nesting_level][1] = ';';
|
||||
}
|
||||
else if ($m[3] == 'PREPEND')
|
||||
{
|
||||
$addto = substr ($m[4], 0, strlen($m[4]) - 1);
|
||||
$addto = $this->generate_block_data_ref($addto, true) . ' [\'' . $m[6] . '\']';
|
||||
$addmodes[$block_nesting_level][0] = 'if (isset (' . $addto . ')) ' . $addto . ' = ';
|
||||
$addmodes[$block_nesting_level][1] = ' . ' . $addto . ';';
|
||||
}
|
||||
}*/
|
||||
|
||||
if ($block_nesting_level < 2)
|
||||
{
|
||||
// Block is not nested.
|
||||
if (!$cbcount)
|
||||
$code_lines[$i] = '$_' . $m[1] . '_count = ( isset($this->_tpldata[\'' . $m[1] . '.\']) ) ? sizeof($this->_tpldata[\'' . $m[1] . '.\']) : ' . $addmodes[$block_nesting_level][2] . ';';
|
||||
else $code_lines[$i] = '$_' . $m[1] . '_count = min (@sizeof($this->_tpldata[\'' . $m[1] . '.\']), ' . $cbcount . ');';
|
||||
$code_lines[$i] .= "\n" . 'for ($_' . $m[1] . '_i = ' . $cbstart . '; $_' . $m[1] . '_i < $_' . $m[1] . '_count; $_' . $m[1] . '_i' . $cbplus . ')';
|
||||
$code_lines[$i] .= "\n" . '{';
|
||||
}
|
||||
else
|
||||
{
|
||||
// This block is nested.
|
||||
|
||||
// Generate a namespace string for this block.
|
||||
$namespace = implode('.', $block_names);
|
||||
// strip leading period from root level..
|
||||
$namespace = substr($namespace, 2);
|
||||
// Get a reference to the data array for this block that depends on the
|
||||
// current indices of all parent blocks.
|
||||
$varref = $this->generate_block_data_ref($namespace, false);
|
||||
// $this->_tpldata['categories.'][$_categories_i]['modules.']
|
||||
// Create the for loop code to iterate over this block.
|
||||
if (!$cbcount)
|
||||
$code_lines[$i] = '$_' . $m[1] . '_count = ( isset(' . $varref . ') ) ? sizeof(' . $varref . ') : ' . $addmodes[$block_nesting_level][2] . ';';
|
||||
else $code_lines[$i] = '$_' . $m[1] . '_count = ' . $cbcount . ';';
|
||||
$code_lines[$i] .= "\n" . 'for ($_' . $m[1] . '_i = ' . $cbstart . '; $_' . $m[1] . '_i < $_' . $m[1] . '_count; $_' . $m[1] . '_i' . $cbplus . ')';
|
||||
$code_lines[$i] .= "\n" . '{';
|
||||
}
|
||||
}
|
||||
else if (preg_match('#<!-- END (.*?) -->#', $code_lines[$i], $m))
|
||||
{
|
||||
// We have the end of a block.
|
||||
unset($block_names[$block_nesting_level]);
|
||||
$block_nesting_level--;
|
||||
$code_lines[$i] = '} // END ' . $m[1];
|
||||
}
|
||||
else if ($code_lines[$i] != '')
|
||||
{
|
||||
// We have an ordinary line of code [changed: VMX]
|
||||
$code_lines[$i] = $addmodes[$block_nesting_level][0] . '\'' . $code_lines[$i] . '\'' . $addmodes[$block_nesting_level][1];
|
||||
}
|
||||
}
|
||||
// Bring it back into a single string of lines of code.
|
||||
$code = implode("\n", $code_lines);
|
||||
// Cache compiled code if needed
|
||||
if (isset ($sfile) && $fd = @fopen ($sfile, 'w'))
|
||||
{
|
||||
fwrite ($fd, $code);
|
||||
fclose ($fd);
|
||||
}
|
||||
return $code;
|
||||
}
|
||||
|
||||
/**
|
||||
* Generates a reference to the given variable inside the given (possibly nested)
|
||||
* block namespace. This is a string of the form:
|
||||
* ' . $this->_tpldata['parent'][$_parent_i]['$child1'][$_child1_i]['$child2'][$_child2_i]...['varname'] . '
|
||||
* It's ready to be inserted into an "echo" line in one of the templates.
|
||||
* NOTE: expects a trailing "." on the namespace.
|
||||
*/
|
||||
function generate_block_varref($namespace, $varname, $varoption = false)
|
||||
{
|
||||
// Strip the trailing period.
|
||||
$namespace = substr($namespace, 0, strlen($namespace) - 1);
|
||||
// Get a reference to the data block for this namespace.
|
||||
$varref = $this->generate_block_data_ref($namespace, true);
|
||||
// Prepend the necessary code to stick this in an echo line.
|
||||
if ($varoption === false)
|
||||
$varoption = "''";
|
||||
else
|
||||
$varoption = '((isset(' . $varref . '[\'' . $varoption . '\']' . ')) ? ' . $varref . '[\'' . $varoption . '\'] : \'\')';
|
||||
// Append the variable reference.
|
||||
$varref .= '[\'' . $varname . '\']';
|
||||
$varref = '\' . ( ( isset(' . $varref . ') ) ? ' . $varref . ' : ' . $varoption . ' ) . \'';
|
||||
return $varref;
|
||||
}
|
||||
|
||||
/**
|
||||
* Generates a reference to the array of data values for the given
|
||||
* (possibly nested) block namespace. This is a string of the form:
|
||||
* $this->_tpldata['parent'][$_parent_i]['$child1'][$_child1_i]['$child2'][$_child2_i]...['$childN']
|
||||
*
|
||||
* If $include_last_iterator is true, then [$_childN_i] will be appended to the form shown above.
|
||||
* NOTE: does not expect a trailing "." on the blockname.
|
||||
*/
|
||||
function generate_block_data_ref($blockname, $include_last_iterator)
|
||||
{
|
||||
// Added - VMX: function now can handle root-level
|
||||
if ($blockname == '')
|
||||
return '$this->_tpldata[\'.\']' . ($include_last_iterator ? '[0]' : '');
|
||||
// Get an array of the blocks involved.
|
||||
$blocks = explode(".", $blockname);
|
||||
$blockcount = sizeof($blocks) - 1;
|
||||
$varref = '$this->_tpldata';
|
||||
// Build up the string with everything but the last child.
|
||||
for ($i = 0; $i < $blockcount; $i++)
|
||||
{
|
||||
$varref .= '[\'' . $blocks[$i] . '.\'][$_' . $blocks[$i] . '_i]';
|
||||
}
|
||||
// Add the block reference for the last child.
|
||||
$varref .= '[\'' . $blocks[$blockcount] . '.\']';
|
||||
// Add the iterator for the last child if requried.
|
||||
if ($include_last_iterator)
|
||||
{
|
||||
$varref .= '[$_' . $blocks[$blockcount] . '_i]';
|
||||
}
|
||||
return $varref;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
?>
|
||||
Loading…
Reference in New Issue