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