Add a PHP renderer for doT templates ... does not handle all cases (far from it) but it's enought for COPS

2013-08-21 15:41:20 +02:00 · 2013-08-21 15:41:20 +02:00 · a2384ce7cc
parent 7e5841e265
commit a2384ce7cc
1 changed files with 96 additions and 0 deletions
--- a/resources/doT-php/doT.php
+++ b/resources/doT-php/doT.php
@ -0,0 +1,96 @@
+<?php
+/**
+ * PHP renderer for doT templating engine 
+ *
+ * @license    GPL 2 (http://www.gnu.org/licenses/gpl.html)
+ * @author     Sébastien Lucas <sebastien@slucas.fr>
+ */
+
+
+class doT {
+    public $functionBody;
+    private $functionCode;
+    private $def;
+    
+    private function resolveDefs ($block) {
+        return preg_replace_callback ("/\{\{#([\s\S]+?)\}\}/", function ($m) {
+            $d = $m[1];
+            $d = substr ($d, 4);
+            if (!array_key_exists ($d, $this->def)) {
+                return "";
+            }
+            if (preg_match ("/\{\{#([\s\S]+?)\}\}/", $this->def [$d])) {
+                return $this->resolveDefs ($this->def [$d], $this->def);
+            } else {
+                return $this->def [$d];
+            }
+        }, $block);
+    }
+    
+    private function handleDotNotation ($string) {
+        $out = preg_replace ("/(\w+)\.(.*?)([\s,\)])/", "\$$1[\"$2\"]$3", $string);
+        $out = preg_replace ("/(\w+)\.([\w\.]*?)$/", "\$$1[\"$2\"] ", $out);
+        $out = preg_replace ("/\./", '"]["', $out);
+        
+        // Special hideous case : shouldn't be committed
+        $out = preg_replace ("/^i /", ' $i ', $out);
+        return $out;
+    }
+    
+    public function template ($string, $def) {
+        $func = preg_replace ("/'|\\\/", "\\$&", $string);
+
+        // deps
+        if (empty ($def)) {
+            $func = preg_replace ("/\{\{#([\s\S]+?)\}\}/", "", $func);
+        } else {
+            $this->def = $def;
+            $func = $this->resolveDefs ($func);
+        }
+        // interpolate
+        $func = preg_replace_callback ("/\{\{=([\s\S]+?)\}\}/", function ($m) {
+            return "' . " . $this->handleDotNotation ($m[1]) . " . '";
+        }, $func);
+        // Conditional
+        $func = preg_replace_callback ("/\{\{\?(\?)?\s*([\s\S]*?)\s*\}\}/", function ($m) {
+            $elsecase = $m[1];
+            $code = $m[2];
+            if ($elsecase) {
+                if ($code) {
+                    return "';} else if (" . $this->handleDotNotation ($code) . ") { $" . "out.='";
+                } else {
+                    return "';} else { $" . "out.='";
+                }
+            } else {
+                if ($code) {
+                    return "'; if (" . $this->handleDotNotation ($code) . ") { $" . "out.='";
+                } else {
+                    return "';} $" . "out.='";
+                }
+            }
+        }, $func);
+        // Iterate
+        $func = preg_replace_callback ("/\{\{~\s*(?:\}\}|([\s\S]+?)\s*\:\s*([\w$]+)\s*(?:\:\s*([\w$]+))?\s*\}\})/", function ($m) {
+            if (count($m) > 1) {
+                $iterate = $m[1];
+                $vname = $m[2];
+                $iname = $m[3];
+                $iterate = $this->handleDotNotation ($iterate); 
+                return "'; for (\$$iname = 0; \$$iname < count($iterate); \$$iname++) { \$$vname = $iterate [\$$iname]; \$out.='";
+            } else {
+                return "';} $" . "out.='";
+            }
+        }, $func);
+        $func = '$out = \'' . $func . '\'; return $out;';
+        
+        $this->functionBody = $func;
+        
+        //$this->functionCode = create_function ('$it', $func);
+        return create_function ('$it', $func);
+    }
+    
+    public function execute ($data) {
+        return $this->functionCode ($data);
+    }
+
+}