move exTpl to lib, re #4119

Merge request studip/studip!2963

1 files changed, 37 insertions, 0 deletions

diff --git a/lib/exTpl/ArrayNode.php b/lib/exTpl/ArrayNode.php
new file mode 100644
index 0000000..3981598
--- /dev/null
+++ b/lib/exTpl/ArrayNode.php
@@ -0,0 +1,37 @@
+<?php
+
+namespace exTpl;
+
+/**
+ * ArrayNode represents a sequence of arbitrary nodes.
+ */
+class ArrayNode implements Node
+{
+    protected array $nodes = [];
+
+    /**
+     * Adds a child node to this sequence node.
+     *
+     * @param Node $node child node to add
+     */
+    public function addChild(Node $node): void
+    {
+        $this->nodes[] = $node;
+    }
+
+    /**
+     * Returns a string representation of this node.
+     *
+     * @param Context $context symbol table
+     */
+    public function render(Context $context): string
+    {
+        $result = '';
+
+        foreach ($this->nodes as $node) {
+            $result .= $node->render($context);
+        }
+
+        return $result;
+    }
+}