mirror of
https://github.com/friendica/friendica
synced 2024-12-23 16:00:16 +00:00
137 lines
3.3 KiB
PHP
137 lines
3.3 KiB
PHP
<?php
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class Template {
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var $r;
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var $search;
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var $replace;
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var $stack = array();
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var $nodes = array();
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var $done = false;
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private function _build_replace($r, $prefix){
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if(is_array($r) && count($r)) {
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foreach ($r as $k => $v ) {
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if (is_array($v))
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$this->_build_replace($v, "$prefix$k.");
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$this->search[] = $prefix . $k;
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$this->replace[] = $v;
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}
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}
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}
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private function _push_stack(){
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$this->stack[] = array($this->r, $this->search, $this->replace, $this->nodes);
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}
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private function _pop_stack(){
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list($this->r, $this->search, $this->replace, $this->nodes) = array_pop($this->stack);
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}
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private function _get_var($name){
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$keys = array_map('trim',explode(".",$name));
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$val = $this->r;
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foreach($keys as $k) {
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$val = $val[$k];
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}
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return $val;
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}
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/**
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* IF node
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*
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* {{ if <$var> }}...{{ endif }}
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*/
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private function _replcb_if($args){
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$val = $this->_get_var($args[2]);
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return ($val?$args[3]:"");
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}
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/**
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* FOR node
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*
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* {{ for <$var> as $name }}...{{ endfor }}
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* {{ for <$var> as $key=>$name }}...{{ endfor }}
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*/
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private function _replcb_for($args){
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$m = array_map('trim', explode(" as ", $args[2]));
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list($keyname, $varname) = explode("=>",$m[1]);
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if (is_null($varname)) { $varname=$keyname; $keyname=""; }
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if ($m[0]=="" || $varname=="" || is_null($varname)) die("template error: 'for ".$m[0]." as ".$varname."'") ;
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$vals = $this->r[$m[0]];
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$ret="";
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if (!is_array($vals)) return $ret;
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foreach ($vals as $k=>$v){
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$this->_push_stack();
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$r = $this->r;
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$r[$varname] = $v;
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if ($keyname!='') $r[$keyname] = $k;
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$ret .= $this->replace($args[3], $r);
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$this->_pop_stack();
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}
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return $ret;
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}
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/**
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* INC node
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*
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* {{ inc <templatefile> [with $var1=$var2] }}{{ endinc }}
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*/
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private function _replcb_inc($args){
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list($tplfile, $newctx) = array_map('trim', explode("with",$args[2]));
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$this->_push_stack();
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$r = $this->r;
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if (!is_null($newctx)) {
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list($a,$b) = array_map('trim', explode("=",$newctx));
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$r[$a] = $this->_get_var($b);
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}
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$this->nodes = Array();
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$tpl = load_view_file($tplfile);
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$ret = $this->replace($tpl, $r);
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$this->_pop_stack();
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return $ret;
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}
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private function _replcb_node($m) {
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$node = $this->nodes[$m[1]];
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if (method_exists($this, "_replcb_".$node[1])){
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return call_user_func(array($this, "_replcb_".$node[1]), $node);
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} else {
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return "";
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}
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}
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private function _replcb($m){
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$this->done = false;
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$this->nodes[] = (array) $m;
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return "||". (count($this->nodes)-1) ."||";
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}
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private function _build_nodes($s){
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$this->done = false;
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while (!$this->done){
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$this->done=true;
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$s = preg_replace_callback('|{{ *([a-z]*) *([^}]*)}}([^{]*){{ *end\1 *}}|', array($this, "_replcb"), $s);
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}
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krsort($this->nodes);
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return $s;
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}
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public function replace($s, $r) {
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$this->r = $r;
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$this->search = array();
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$this->replace = array();
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$this->_build_replace($r, "");
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#$s = str_replace(array("\n","\r"),array("§n§","§r§"),$s);
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$s = $this->_build_nodes($s);
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$s = preg_replace_callback('/\|\|([0-9]+)\|\|/', array($this, "_replcb_node"), $s);
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$s = str_replace($this->search,$this->replace,$s);
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return $s;
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}
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}
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$t = new Template;
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