139 lines
6.3 KiB
PHP
139 lines
6.3 KiB
PHP
<?php
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/*
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Class name: Themes
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Class autor: Victor De la Rocha http//mis-algoritmos.com/themes-class
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Email: vyk2rr [at] gmail [dot] com
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*/
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class themes{
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var $registry;
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var $path;
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var $l10n;
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var $output;
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var $vars=array(); //variable para apilar las variables que se asignan a la plantilla
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function themes(){
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}
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function set($name, $value){
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$this->vars[$name] = $value;
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return true;
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}
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function remove($name) {
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unset($this->vars[$name]);
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return true;
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}
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//obtiene el contenido del tema ya con todos los valores sutituidos en las variables.
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function fetch($file){
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$this->exec($file);
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return $this->output;
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}
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//muestra el contenido del tema ya con todos los valroes sustituidos en las variables.
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function display($file){
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$this->exec($file);
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echo $this->output;
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}
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//corre el proceso de sustitucion de valores en las variables del theme y retorna todo en la variable $this->output para ser devuelto por: fetch o display
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function exec($file){
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$this->file = $file;
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$output = file_get_contents($file);
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$this->output = $output;
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$this->registrar_vars();
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$this->__();
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$this->eval_control_structures();
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//evaluate All as PHP code
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ob_start();eval($this->output);
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$this->output = stripslashes(ob_get_clean());
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}
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function eval_control_structures(){
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//finding {header *}
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preg_match_all("/{header ([^}]+?)}/s",$this->output,$out);
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$headers = '';
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foreach ($out[1] as $o)
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$headers .= "header('$o');\n";
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$this->output = preg_replace("/{header [^}]+?}/s","",$this->output);
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//fake scape
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$this->output = $this->quotemeta($this->output);
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$this->output = str_replace('\"','\\"',trim($this->output));
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$this->output = "echo \"".str_replace('"','\"',trim($this->output))."\";";
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#$this->output = preg_replace("/\n+/s","\n",$this->output);
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$this->output = $headers.trim($this->output);
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//finding IFs sentences and converting to php code
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#$this->output = preg_replace_callback("/{if ([^}]+)}/",create_function('$arr','return "\";if(".stripslashes($arr[1])."){echo\"";'),$this->output);
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$this->output = preg_replace_callback("/{if ([^}]+)}/",create_function('$arr','return "\";if(".stripslashes(preg_replace(array("/\\\\$([a-zA-Z0-9_]+)/s","/\\\\\\$this->vars\[\\\'([a-zA-Z0-9_]+)\\\'\]\.([a-zA-Z0-9_]+)/s"),array("\$this->vars[\'\$1\']","\\\\\\$this->vars[\\\'$1\\\'][\\\'$2\\\']"),$arr[1]))."){echo\"";'),$this->output);
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$this->output = preg_replace("/{else}/","\";}else{echo\"",$this->output);
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$this->output = preg_replace_callback("/{elseif ([^}]+)}/",create_function('$arr','return "\";}elseif(".stripslashes(preg_replace(array("/\\\\$([a-zA-Z0-9]+)/s","/\\\\\\$this->vars\[\\\'([a-zA-Z0-9]+)\\\'\]\.([a-zA-Z0-9]+)/s"),array("\$this->vars[\'\$1\']","\\\\\\$this->vars[\\\'$1\\\'][\\\'$2\\\']"),$arr[1]))."){echo\"";'),$this->output);
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$this->output = preg_replace("/{\/if}/","\";} echo \"",$this->output);
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//finding FOREACHs or BLOCKs sentences and converting to php code
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$this->output = preg_replace_callback("/{block ([^}]+) as ([^}]+)=>[\$]([^}]+)}/",create_function('$arr','return "\";foreach(".stripslashes(preg_replace(array("/\\\\$([a-zA-Z0-9_]+)/s","/\\\\\\$this->vars\[\\\'([a-zA-Z0-9_]+)\\\'\]\.([a-zA-Z0-9_]+)/s"),array("\$this->vars[\'\$1\']","\\\\\\$this->vars[\\\'$1\\\'][\\\'$2\\\']"),$arr[1]))." as ".stripslashes(preg_replace(array("/\\\\$([a-zA-Z0-9_]+)/s","/\\\\\\$this->vars\[\\\'([a-zA-Z0-9_]+)\\\'\]\.([a-zA-Z0-9_]+)/s"),array("\$this->vars[\'\$1\']","\\\\\\$this->vars[\\\'$1\\\'][\\\'$2\\\']"),$arr[2]))."=>\$this->vars[\'".stripslashes(preg_replace(array("/\\\\$([a-zA-Z0-9_]+)/s","/\\\\\\$this->vars\[\\\'([a-zA-Z0-9_]+)\\\'\]\.([a-zA-Z0-9_]+)/s"),array("\$this->vars[\'\$1\']","\\\\\\$this->vars[\\\'$1\\\'][\\\'$2\\\']"),$arr[3]))."\']){echo\"";'),$this->output);
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$this->output = preg_replace_callback("/{block ([^}]+) as ([^}]+)}/",create_function('$arr','return "\";foreach(".stripslashes(preg_replace(array("/\\\\$([a-zA-Z0-9_]+)/s","/\\\\\\$this->vars\[\\\'([a-zA-Z0-9_]+)\\\'\]\.([a-zA-Z0-9_]+)/s"),array("\$this->vars[\'\$1\']","\\\\\\$this->vars[\\\'$1\\\'][\\\'$2\\\']"),$arr[1]))." as ".stripslashes(preg_replace(array("/\\\\$([a-zA-Z0-9_]+)/s","/\\\\\\$this->vars\[\\\'([a-zA-Z0-9_]+)\\\'\]\.([a-zA-Z0-9_]+)/s"),array("\$this->vars[\'\$1\']","\\\\\\$this->vars[\\\'$1\\\'][\\\'$2\\\']"),$arr[2]))."){echo\"";'),$this->output);
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$this->output = preg_replace("/{\/block}/","\";} echo \"",$this->output);
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//Converting the $this->vars[\'variable\'] format to {$this->vars['variable']}
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//$this->output = preg_replace("/[\$]this->vars\[\\\'([^ \.\\\]+)\\\'\]\[\\\'([^ \.\\\]+)\\\'\]/","{\$this->vars['$1']['$2']}",$this->output);
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$this->output = preg_replace("/[\$]this->vars\[\\\'([^ \.\\\]+)\\\'\]/","{\$this->vars['$1']}",$this->output);
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//Convertin the {__(\'word\')} format to {__('word')}
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#$this->output = preg_replace("/[\$]this->vars\[\\\'([^ \.\\\]+)\\\'\]/","{\$this->vars['$1']}",$this->output);
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}
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//sustituye las variables en el output del template
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function registrar_vars(){
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foreach($this->vars as $k=>$v){
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//pre($this->vars);
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if(is_array($v)){
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//Si es un arreglo, se intenta procesar un nivel mas adentro para sustituir en el theme por lo que tenga: nombredearreglo.dato
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foreach($v as $_k=>$_v)
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if(!is_array($_v))
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$this->output = str_replace('{'.$k.'.'.$_k.'}',$_v,$this->output);
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}else{
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// sustituimos directamente las variables {$variable}
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$this->output = str_replace('{'.$k.'}',$v,$this->output);
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}
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}
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//replacing {$key} format by $this->vars['key']
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//replacing {$array.key} format by $this->vars['array']['key']
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$patrones = array(
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'/{\$([^ \.}]+)}/s',
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'/{\$([^ \.}]+)\.([^ \.}]+)}/s'
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);
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$reemplazos = array(
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"{\$this->vars['$1']}",
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"{\$this->vars['$1']['$2']}"
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);
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$this->output = preg_replace($patrones, $reemplazos, $this->output);
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}
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function quotemeta($str){
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$chars = array(/*'.',*/ "\\", /*'+',*/ /*'*',*/ /*'?',*/ /*'[',*/ /*'^',*/ /*']',*/ /*'(',*/ /* '$' Por el momento no validar este*/);
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foreach($chars as $char)
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$this->output = str_replace($char,"\\$char",$this->output);
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return $this->output;
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}
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//Utiliza gettext
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function __(){
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$patron = "/{__\((?:'|\")([^\)]+?)(?:'|\")\)}/s";
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preg_match_all($patron,$this->output,$out);
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foreach($out[1] as $k=>$v){
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$this->output = preg_replace("/{__\((?:'|\")$v(?:'|\")\)}/",__($v),$this->output);
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}
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}
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}
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?>
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