87 lines
2.2 KiB
PHP
87 lines
2.2 KiB
PHP
<?php
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class InvalidTemplateException extends UnexpectedValueException{
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}
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class TplBlock {
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const blockStartStart = '<!-- BEGIN ';
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const blockStartEnd = ' -->';
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const blockEndStart = '<!-- END ';
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const blockEndEnd = ' -->';
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const startEnclosure = '{{';
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const endEnclosure = '}}';
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public $name = '';
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private $vars = array();
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private $subBlocs = array();
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/*
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* Initialise TplBlock
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* Input object name
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*/
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public function __construct($name = NULL){
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$this->name = $name;
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}
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/*
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* Add simple vars
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* Input array structured like:
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* {"key":"value","key2":"value2"}
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*/
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public function add_vars(ARRAY $vars){
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$this->vars = array_merge($this->vars,$vars);
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}
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public function add_sub_block(TplBlock $bloc){
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if(is_null($bloc->name) || empty($bloc->name)){
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throw new InvalidTemplateException("A sub tpl bloc can't have an empty name");
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return false;
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}
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$this->subBlocs[$bloc->name][] = $bloc;
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}
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/*
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* Shake template and input vars and returns the text
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*/
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public function apply_tpl_str($str,$subBlocsPath = ""){
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//replace all simple vars
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$prefix = (empty($subBlocsPath)? "" : $subBlocsPath.".");
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foreach($this->vars as $key=>$value){
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$str = str_replace(self::startEnclosure . $prefix . $key . self::endEnclosure,
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$value,
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$str);
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}
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//Isolate blocs
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foreach($this->subBlocs as $blocName => $blocsArr){
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$str = preg_replace_callback(
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'/' . self::blockStartStart . preg_quote($prefix . $blocName) . self::blockStartEnd .
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'(.*?)'.
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self::blockEndStart . preg_quote($prefix . $blocName). self::blockEndEnd.
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'/is',
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function($m) use($blocName,$blocsArr,$prefix) {
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$out = "";
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foreach($blocsArr as $bloc){
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$out.=$bloc->apply_tpl_str( $m[1] , $prefix . $blocName );
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}
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return $out;
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}
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,$str
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);
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}
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return $str;
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}
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public function apply_tpl_file($file){
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if(!$tplStr = file_get_contents($file)){
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throw new InvalidTemplateException("Cannot read given file ".$file);
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return false;
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}
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return $this->apply_tpl_str($tplStr);
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}
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}
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