first commit

2018-08-01 16:00:05 +02:00
commit 944fd76206
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+<?php
+/**
+ * @package    Grav.Common.Twig
+ *
+ * @copyright  Copyright (C) 2015 - 2018 Trilby Media, LLC. All rights reserved.
+ * @license    MIT License; see LICENSE file for details.
+ */
+
+namespace Grav\Common\Twig\TokenParser;
+
+use Grav\Common\Twig\Node\TwigNodeStyle;
+
+/**
+ * Adds a style to the document.
+ *
+ * {% style 'theme://css/foo.css' priority: 20 %}
+
+ * {% style priority: 20 with { media: 'screen' } %}
+ *     a { color: red; }
+ * {% endstyle %}
+ */
+class TwigTokenParserStyle extends \Twig_TokenParser
+{
+    /**
+     * Parses a token and returns a node.
+     *
+     * @param \Twig_Token $token A Twig_Token instance
+     *
+     * @return \Twig_NodeInterface A Twig_NodeInterface instance
+     */
+    public function parse(\Twig_Token $token)
+    {
+        $lineno = $token->getLine();
+        $stream = $this->parser->getStream();
+
+        list ($file, $group, $priority, $attributes) = $this->parseArguments($token);
+
+        $content = null;
+        if (!$file) {
+            $content = $this->parser->subparse([$this, 'decideBlockEnd'], true);
+            $stream->expect(\Twig_Token::BLOCK_END_TYPE);
+        }
+
+        return new TwigNodeStyle($content, $file, $group, $priority, $attributes, $lineno, $this->getTag());
+    }
+
+    /**
+     * @param \Twig_Token $token
+     * @return array
+     */
+    protected function parseArguments(\Twig_Token $token)
+    {
+        $stream = $this->parser->getStream();
+
+        $file = null;
+        if (!$stream->test(\Twig_Token::NAME_TYPE) && !$stream->test(\Twig_Token::OPERATOR_TYPE) && !$stream->test(\Twig_Token::BLOCK_END_TYPE)) {
+            $file = $this->parser->getExpressionParser()->parseExpression();
+        }
+
+        $group = null;
+        if ($stream->nextIf(\Twig_Token::OPERATOR_TYPE, 'in')) {
+            $group = $this->parser->getExpressionParser()->parseExpression();
+        }
+
+        $priority = null;
+        if ($stream->nextIf(\Twig_Token::NAME_TYPE, 'priority')) {
+            $stream->expect(\Twig_Token::PUNCTUATION_TYPE, ':');
+            $priority = $this->parser->getExpressionParser()->parseExpression();
+        }
+
+        $attributes = null;
+        if ($stream->nextIf(\Twig_Token::NAME_TYPE, 'with')) {
+            $attributes = $this->parser->getExpressionParser()->parseExpression();
+        }
+
+        $stream->expect(\Twig_Token::BLOCK_END_TYPE);
+
+        return [$file, $group, $priority, $attributes];
+    }
+
+    /**
+     * @param \Twig_Token $token
+     * @return bool
+     */
+    public function decideBlockEnd(\Twig_Token $token)
+    {
+        return $token->test('endstyle');
+    }
+
+    /**
+     * Gets the tag name associated with this token parser.
+     *
+     * @return string The tag name
+     */
+    public function getTag()
+    {
+        return 'style';
+    }
+}