Initial checkin

core/template/src/ParseTree/Template.php

@@ -0,0 +1,172 @@
+<?php
+
+namespace Smarty\ParseTree;
+
+/**
+ * Smarty Internal Plugin Templateparser Parse Tree
+ * These are classes to build parse tree in the template parser
+ *
+
+
+ * @author     Thue Kristensen
+ * @author     Uwe Tews
+ */
+
+/**
+ * Template element
+ *
+
+
+ * @ignore
+ */
+class Template extends Base
+{
+    /**
+     * Array of template elements
+     *
+     * @var array
+     */
+    public $subtrees = array();
+
+    /**
+     * Create root of parse tree for template elements
+     */
+    public function __construct()
+    {
+    }
+
+    /**
+     * Append buffer to subtree
+     *
+     * @param \Smarty\Parser\TemplateParser $parser
+     * @param Base $subtree
+     */
+    public function append_subtree(\Smarty\Parser\TemplateParser $parser, Base $subtree)
+    {
+        if (!empty($subtree->subtrees)) {
+            $this->subtrees = array_merge($this->subtrees, $subtree->subtrees);
+        } else {
+            if ($subtree->data !== '') {
+                $this->subtrees[] = $subtree;
+            }
+        }
+    }
+
+    /**
+     * Append array to subtree
+     *
+     * @param \Smarty\Parser\TemplateParser $parser
+     * @param Base[] $array
+     */
+    public function append_array(\Smarty\Parser\TemplateParser $parser, $array = array())
+    {
+        if (!empty($array)) {
+            $this->subtrees = array_merge($this->subtrees, (array)$array);
+        }
+    }
+
+    /**
+     * Prepend array to subtree
+     *
+     * @param \Smarty\Parser\TemplateParser $parser
+     * @param Base[] $array
+     */
+    public function prepend_array(\Smarty\Parser\TemplateParser $parser, $array = array())
+    {
+        if (!empty($array)) {
+            $this->subtrees = array_merge((array)$array, $this->subtrees);
+        }
+    }
+
+    /**
+     * Sanitize and merge subtree buffers together
+     *
+     * @param \Smarty\Parser\TemplateParser $parser
+     *
+     * @return string template code content
+     */
+    public function to_smarty_php(\Smarty\Parser\TemplateParser $parser)
+    {
+        $code = '';
+
+        foreach ($this->getChunkedSubtrees() as $chunk) {
+            $text = '';
+            switch ($chunk['mode']) {
+                case 'textstripped':
+                    foreach ($chunk['subtrees'] as $subtree) {
+                        $text .= $subtree->to_smarty_php($parser);
+                    }
+                    $code .= preg_replace(
+                        '/((<%)|(%>)|(<\?php)|(<\?)|(\?>)|(<\/?script))/',
+                        "<?php echo '\$1'; ?>\n",
+                        $parser->compiler->processText($text)
+                    );
+                    break;
+                case 'text':
+                    foreach ($chunk['subtrees'] as $subtree) {
+                        $text .= $subtree->to_smarty_php($parser);
+                    }
+                    $code .= preg_replace(
+                        '/((<%)|(%>)|(<\?php)|(<\?)|(\?>)|(<\/?script))/',
+                        "<?php echo '\$1'; ?>\n",
+                        $text
+                    );
+                    break;
+                case 'tag':
+                    foreach ($chunk['subtrees'] as $subtree) {
+                        $text = $parser->compiler->appendCode($text, (string) $subtree->to_smarty_php($parser));
+                    }
+                    $code .= $text;
+                    break;
+                default:
+                    foreach ($chunk['subtrees'] as $subtree) {
+                        $text = $subtree->to_smarty_php($parser);
+                    }
+                    $code .= $text;
+
+            }
+        }
+        return $code;
+    }
+
+    private function getChunkedSubtrees() {
+        $chunks = array();
+        $currentMode = null;
+        $currentChunk = array();
+        for ($key = 0, $cnt = count($this->subtrees); $key < $cnt; $key++) {
+
+            if ($this->subtrees[ $key ]->data === '' && in_array($currentMode, array('textstripped', 'text', 'tag'))) {
+                continue;
+            }
+
+            if ($this->subtrees[ $key ] instanceof Text
+                && $this->subtrees[ $key ]->isToBeStripped()) {
+                $newMode = 'textstripped';
+            } elseif ($this->subtrees[ $key ] instanceof Text) {
+                $newMode = 'text';
+            } elseif ($this->subtrees[ $key ] instanceof Tag) {
+                $newMode = 'tag';
+            } else {
+                $newMode = 'other';
+            }
+
+            if ($newMode == $currentMode) {
+                $currentChunk[] = $this->subtrees[ $key ];
+            } else {
+                $chunks[] = array(
+                    'mode' => $currentMode,
+                    'subtrees' => $currentChunk
+                );
+                $currentMode = $newMode;
+                $currentChunk = array($this->subtrees[ $key ]);
+            }
+        }
+        if ($currentMode && $currentChunk) {
+            $chunks[] = array(
+                'mode' => $currentMode,
+                'subtrees' => $currentChunk
+            );
+        }
+        return $chunks;
+    }
+}