X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=include%2Ftemplate_processor.php;h=46252c355f54b5509ab34a8f2e2fec7925fbaae2;hb=912e008ded3d439f7779310eb422e4b871a9b63d;hp=f6d0264df9abc8d0bf0b35de53791a3d3d3efc8a;hpb=0afef6b17e622d1fabd0f499ac206e8924278dfb;p=friendica.git
diff --git a/include/template_processor.php b/include/template_processor.php
index f6d0264df9..46252c355f 100644
--- a/include/template_processor.php
+++ b/include/template_processor.php
@@ -1,50 +1,230 @@
$v ) {
- if (is_array($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 "
";
+ debug_print_backtrace();
+ die();
+ }
+
+
+ private function _push_stack(){
+ $this->stack[] = array($this->r, $this->nodes);
+ }
+ private function _pop_stack(){
+ list($this->r, $this->nodes) = array_pop($this->stack);
+
+ }
- private function _replcb_if($m){
- //echo ""; var_dump($m);
- $keys = explode(".",$m[1]);
+ 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 $val;
+ }
+
+ /**
+ * IF node
+ *
+ * {{ if <$var> }}...[{{ else }} ...] {{ endif }}
+ * {{ if <$var>== }}...[{{ else }} ...]{{ endif }}
+ * {{ if <$var>!= }}...[{{ else }} ...]{{ endif }}
+ */
+ private function _replcb_if($args){
+ if (strpos($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]) ? $x[1] : ""));
+ }
+
+ /**
+ * FOR node
+ *
+ * {{ for <$var> as $name }}...{{ endfor }}
+ * {{ for <$var> as $key=>$name }}...{{ endfor }}
+ */
+ private function _replcb_for($args){
+ $m = array_map('trim', explode(" as ", $args[2]));
+ $x = explode("=>",$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 = $this->_get_var($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 === 0) ? '0' : $k);
+ $ret .= $this->replace($args[3], $r);
+ $this->_pop_stack();
+ }
+ return $ret;
+ }
+
+ /**
+ * INC node
+ *
+ * {{ inc [with $var1=$var2] }}{{ endinc }}
+ */
+ private function _replcb_inc($args){
+ if (strpos($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)) {
+ list($a,$b) = array_map('trim', explode("=",$newctx));
+ $r[$a] = $this->_get_var($b);
}
+ $this->nodes = Array();
+ $tpl = get_markup_template($tplfile);
+ $ret = $this->replace($tpl, $r);
+ $this->_pop_stack();
+ return $ret;
- //echo $val;
- return ($val?$m[2]:"");
+ }
+
+ private function _replcb_node($m) {
+ $node = $this->nodes[$m[1]];
+ if (method_exists($this, "_replcb_".$node[1])){
+ $s = call_user_func(array($this, "_replcb_".$node[1]), $node);
+ } else {
+ $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) ."||";
}
+ private function _build_nodes($s){
+ $this->done = false;
+ while (!$this->done){
+ $this->done=true;
+ $s = preg_replace_callback('|{{ *([a-z]*) *([^}]*)}}([^{]*({{ *else *}}[^{]*)?){{ *end\1 *}}|', array($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->s = $s;
$this->r = $r;
- $this->search = array();
- $this->replace = array();
-
- $this->_build_replace($r, "");
-
- $s = preg_replace_callback("|{{ *if *([^ }]*) *}}([^{]*){{ *endif *}}|", array($this, "_replcb_if"), $s);
+ $s = $this->_build_nodes($s);
+
+ $s = preg_replace_callback('/\|\|([0-9]+)\|\|/', array($this, "_replcb_node"), $s);
+ if ($s==Null) $this->_preg_error();
- return str_replace($this->search,$this->replace,$s);
+ // 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);
+
+
+
+}