<?php
-
+
class Template {
- var $s;
var $r;
var $search;
var $replace;
+ var $stack = array();
+ var $nodes = array();
+ var $done = false;
+ var $d = false;
+ var $lang = null;
+ var $debug=false;
+
+ private function _preg_error(){
+ switch(preg_last_error()){
+ case PREG_INTERNAL_ERROR: echo('PREG_INTERNAL_ERROR'); break;
+ case PREG_BACKTRACK_LIMIT_ERROR: echo('PREG_BACKTRACK_LIMIT_ERROR'); break;
+ case PREG_RECURSION_LIMIT_ERROR: echo('PREG_RECURSION_LIMIT_ERROR'); break;
+ case PREG_BAD_UTF8_ERROR: echo('PREG_BAD_UTF8_ERROR'); break;
+ case PREG_BAD_UTF8_OFFSET_ERROR: echo('PREG_BAD_UTF8_OFFSET_ERROR'); break;
+ default:
+ //die("Unknown preg error.");
+ return;
+ }
+ echo "<hr><pre>";
+ debug_print_backtrace();
+ die();
+ }
private function _build_replace($r, $prefix){
if(is_array($r) && count($r)) {
foreach ($r as $k => $v ) {
- if (is_array($v))
+ if (is_array($v)) {
$this->_build_replace($v, "$prefix$k.");
-
- $this->search[] = $prefix . $k;
- $this->replace[] = $v;
+ } else {
+ $this->search[] = $prefix . $k;
+ $this->replace[] = $v;
+ }
}
}
}
- private function _replcb_if($m){
- //echo "<pre>"; var_dump($m);
- $keys = explode(".",$m[1]);
+ private function _push_stack(){
+ $this->stack[] = array($this->r, $this->search, $this->replace, $this->nodes);
+ }
+ private function _pop_stack(){
+ list($this->r, $this->search, $this->replace, $this->nodes) = array_pop($this->stack);
+
+ }
+
+ private function _get_var($name){
+ $keys = array_map('trim',explode(".",$name));
$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 <$var>==<val|$var> }}...[{{ else }} ...]{{ endif }}
+ * {{ if <$var>!=<val|$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;
+ $ret .= $this->replace($args[3], $r);
+ $this->_pop_stack();
+ }
+ return $ret;
+ }
+
+ /**
+ * INC node
+ *
+ * {{ inc <templatefile> [with $var1=$var2] }}{{ endinc }}
+ */
+ private function _replcb_inc($args){
+ list($tplfile, $newctx) = array_map('trim', explode("with",$args[2]));
+ $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 $s;
+ }
+
+ /*
+ private function _str_replace($str){
+ #$this->search,$this->replace,
+ $searchs = $this->search;
+ foreach($searchs as $search){
+ $search = "|".preg_quote($search)."(\|[a-zA-Z0-9_]*)*|";
+ $m = array();
+ if (preg_match_all($search, $str,$m)){
+ foreach ($m[0] as $match){
+ $toks = explode("|",$match);
+ $val = $this->_get_var($toks[0]);
+ for($k=1; $k<count($toks); $k++){
+ $func = $toks[$k];
+ if (function_exists($func)) $val = $func($val);
+ }
+ if (count($toks)>1){
+ $str = str_replace( $match, $val, $str);
+ }
+ }
+ }
+
+ }
+ return str_replace($this->search,$this->replace, $str);
+ }*/
+
+
public function replace($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 = str_replace(array("\n","\r"),array("§n§","§r§"),$s);
+ $s = $this->_build_nodes($s);
+
+ $s = preg_replace_callback('/\|\|([0-9]+)\|\|/', array($this, "_replcb_node"), $s);
+ if ($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 = $this->_str_replace($s);
+ $s = str_replace($this->search, $this->replace, $s);
+ }
+ return template_unescape($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);
+
+
+
+}
projects / friendica.git / blobdiff