X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=include%2Ftemplate_processor.php;h=46252c355f54b5509ab34a8f2e2fec7925fbaae2;hb=912e008ded3d439f7779310eb422e4b871a9b63d;hp=d1ff3998f0c84f0cf70a37a2d564a559da68e8f7;hpb=e472d79b1e64c91dd3e19227151bdf82eb209192;p=friendica.git

diff --git a/include/template_processor.php b/include/template_processor.php
index d1ff3998f0..46252c355f 100644
--- a/include/template_processor.php
+++ b/include/template_processor.php
@@ -1,4 +1,5 @@
 <?php
+	define ("KEY_NOT_EXISTS", '^R_key_not_Exists^');
 
 	class Template {
 		var $r;
@@ -7,32 +8,43 @@
 		var $stack = array();
 		var $nodes = array();
 		var $done = false;
+		var $d = false;
+		var $lang = null;
+		var $debug=false;
 		
-		private function _build_replace($r, $prefix){
-	
-			if(is_array($r) && count($r)) {
-				foreach ($r as $k => $v ) {
-					if (is_array($v))
-						$this->_build_replace($v, "$prefix$k.");
-					
-					$this->search[] =  $prefix . $k;
-					$this->replace[] = $v;
-				}
+		private function _preg_error(){
+			
+			switch(preg_last_error()){
+			    case PREG_INTERNAL_ERROR: echo('PREG_INTERNAL_ERROR'); break;
+			    case PREG_BACKTRACK_LIMIT_ERROR: echo('PREG_BACKTRACK_LIMIT_ERROR'); break;
+			    case PREG_RECURSION_LIMIT_ERROR: echo('PREG_RECURSION_LIMIT_ERROR'); break;
+			    case PREG_BAD_UTF8_ERROR: echo('PREG_BAD_UTF8_ERROR'); break;
+// This is only valid for php > 5.3, not certain how to code around it for unit tests
+//			    case PREG_BAD_UTF8_OFFSET_ERROR: echo('PREG_BAD_UTF8_OFFSET_ERROR'); break;
+			    default:
+					//die("Unknown preg error.");
+					return;
 			}
-		} 
+			echo "<hr><pre>";
+			debug_print_backtrace();
+			die();
+		}
+		
 		
 		private function _push_stack(){
-			$this->stack[] = array($this->r, $this->search, $this->replace, $this->nodes);
+			$this->stack[] = array($this->r, $this->nodes);
 		}
 		private function _pop_stack(){
-			list($this->r, $this->search, $this->replace, $this->nodes) = array_pop($this->stack);
+			list($this->r, $this->nodes) = array_pop($this->stack);
+			
 		}
 		
-		private function _get_var($name){
-			$keys = array_map('trim',explode(".",$name));			
+		private function _get_var($name, $retNoKey=false){
+			$keys = array_map('trim',explode(".",$name));
+			if ($retNoKey && !array_key_exists($keys[0], $this->r)) return KEY_NOT_EXISTS;
 			$val = $this->r;
 			foreach($keys as $k) {
-				$val = $val[$k];
+				$val = (isset($val[$k]) ? $val[$k] : null);
 			}
 			return $val;
 		}
@@ -40,11 +52,26 @@
 		/**
 		 * IF node
 		 * 
-		 * {{ if <$var> }}...{{ endif }}
+		 * {{ if <$var> }}...[{{ else }} ...] {{ endif }}
+		 * {{ if <$var>==<val|$var> }}...[{{ else }} ...]{{ endif }}
+		 * {{ if <$var>!=<val|$var> }}...[{{ else }} ...]{{ endif }}
 		 */
 		private function _replcb_if($args){
-			$val = $this->_get_var($args[2]);
-			return ($val?$args[3]:"");
+			if (strpos($args[2],"==")>0){
+				list($a,$b) = array_map("trim",explode("==",$args[2]));
+				$a = $this->_get_var($a);
+				if ($b[0]=="$") $b =  $this->_get_var($b);
+				$val = ($a == $b);
+			} else if (strpos($args[2],"!=")>0){
+				list($a,$b) = explode("!=",$args[2]);
+				$a = $this->_get_var($a);
+				if ($b[0]=="$") $b =  $this->_get_var($b);
+				$val = ($a != $b);
+			} else {
+				$val = $this->_get_var($args[2]);
+			}
+			$x = preg_split("|{{ *else *}}|", $args[3]);
+			return ( $val ? $x[0] : (isset($x[1]) ? $x[1] : ""));
 		}
 		
 		/**
@@ -55,17 +82,23 @@
 		 */
 		private function _replcb_for($args){
 			$m = array_map('trim', explode(" as ", $args[2]));
-			list($keyname, $varname) = explode("=>",$m[1]);
-			if (is_null($varname)) { $varname=$keyname; $keyname=""; }
+			$x = explode("=>",$m[1]);
+			if (count($x) == 1) {
+				$varname = $x[0];
+				$keyname = "";
+			} else {
+				list($keyname, $varname) = $x;
+			}
 			if ($m[0]=="" || $varname=="" || is_null($varname)) die("template error: 'for ".$m[0]." as ".$varname."'") ;
-			$vals = $this->r[$m[0]];
+			//$vals = $this->r[$m[0]];
+			$vals = $this->_get_var($m[0]);
 			$ret="";
 			if (!is_array($vals)) return $ret; 
 			foreach ($vals as $k=>$v){
 				$this->_push_stack();
 				$r = $this->r;
 				$r[$varname] = $v;
-				if ($keyname!='') $r[$keyname] = $k;
+				if ($keyname!='') $r[$keyname] = (($k === 0) ? '0' : $k);
 				$ret .=  $this->replace($args[3], $r);
 				$this->_pop_stack();
 			}
@@ -78,7 +111,15 @@
 		 * {{ inc <templatefile> [with $var1=$var2] }}{{ endinc }}
 		 */
 		private function _replcb_inc($args){
-			list($tplfile, $newctx) = array_map('trim', explode("with",$args[2]));
+			if (strpos($args[2],"with")) {
+				list($tplfile, $newctx) = array_map('trim', explode("with",$args[2]));
+			} else {
+				$tplfile = trim($args[2]);
+				$newctx = null;
+			}
+			
+			if ($tplfile[0]=="$") $tplfile = $this->_get_var($tplfile);
+			
 			$this->_push_stack();
 			$r = $this->r;
 			if (!is_null($newctx)) {
@@ -86,7 +127,7 @@
 				$r[$a] = $this->_get_var($b); 
 			}
 			$this->nodes = Array();
-			$tpl = load_view_file($tplfile);
+			$tpl = get_markup_template($tplfile);
 			$ret = $this->replace($tpl, $r);
 			$this->_pop_stack();
 			return $ret;
@@ -96,13 +137,16 @@
 		private function _replcb_node($m) {
 			$node = $this->nodes[$m[1]];
 			if (method_exists($this, "_replcb_".$node[1])){
-				return call_user_func(array($this, "_replcb_".$node[1]),  $node);
+				$s = call_user_func(array($this, "_replcb_".$node[1]),  $node);
 			} else {
-				return "";
+				$s = "";
 			}
+			$s = preg_replace_callback('/\|\|([0-9]+)\|\|/', array($this, "_replcb_node"), $s);
+			return $s;
 		}
 						
 		private function _replcb($m){
+			//var_dump(array_map('htmlspecialchars', $m));
 			$this->done = false;	
 			$this->nodes[] = (array) $m;
 			return "||". (count($this->nodes)-1) ."||";
@@ -112,26 +156,75 @@
 			$this->done = false;
 			while (!$this->done){
 				$this->done=true;
-				$s = preg_replace_callback('|{{ *([a-z]*) *([^}]*)}}([^{]*){{ *end\1 *}}|', array($this, "_replcb"), $s);
+				$s = preg_replace_callback('|{{ *([a-z]*) *([^}]*)}}([^{]*({{ *else *}}[^{]*)?){{ *end\1 *}}|', array($this, "_replcb"), $s);
+				if ($s==Null) $this->_preg_error();
 			}
+			//({{ *else *}}[^{]*)?
 			krsort($this->nodes);
 			return $s;
 		}
 		
+
+		private function var_replace($s){
+			$m = array();
+			/** regexp:
+			 * \$ 						literal $
+			 * (\[)?					optional open square bracket
+			 * ([a-zA-Z0-9-_]+\.?)+		var name, followed by optional
+			 * 							dot, repeated at least 1 time
+			 * (?(1)\])					if there was opened square bracket
+			 * 							(subgrup 1), match close bracket
+			 */
+			if (preg_match_all('/\$(\[)?([a-zA-Z0-9-_]+\.?)+(?(1)\])/', $s,$m)){
+				
+				foreach($m[0] as $var){
+					$varn = str_replace(array("[","]"), array("",""), $var);
+					$val = $this->_get_var($varn, true);
+					if ($val!=KEY_NOT_EXISTS)
+						$s = str_replace($var, $val, $s);
+				}
+			}
+			
+			return $s;
+		}
+	
 		public function replace($s, $r) {
 			$this->r = $r;
-			$this->search = array();
-			$this->replace = array();
-	
-			$this->_build_replace($r, "");
 			
-			#$s = str_replace(array("\n","\r"),array("§n§","§r§"),$s);
 			$s = $this->_build_nodes($s);
+
 			$s = preg_replace_callback('/\|\|([0-9]+)\|\|/', array($this, "_replcb_node"), $s);
-			$s = str_replace($this->search,$this->replace,$s);
+			if ($s==Null) $this->_preg_error();
 			
+			// remove comments block
+			$s = preg_replace('/{#[^#]*#}/', "" , $s);
+			
+			// replace strings recursively (limit to 10 loops)
+			$os = ""; $count=0;
+			while($os!=$s && $count<10){
+				$os=$s; $count++;
+				$s = $this->var_replace($s);
+			}
 			return $s;
 		}
 	}
 	
 	$t = new Template;
+
+
+
+
+function template_escape($s) {
+
+	return str_replace(array('$','{{'),array('!_Doll^Ars1Az_!','!_DoubLe^BraceS4Rw_!'),$s);
+
+
+}
+
+function template_unescape($s) {
+
+	return str_replace(array('!_Doll^Ars1Az_!','!_DoubLe^BraceS4Rw_!'),array('$','{{'),$s);
+
+
+
+}