Differential D20977 Diff 49988 src/infrastructure/markup/syntax/engine/PhutilDefaultSyntaxHighlighterEngine.php

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src/infrastructure/markup/syntax/engine/PhutilDefaultSyntaxHighlighterEngine.php

This file was added.

				<?php

				final class PhutilDefaultSyntaxHighlighterEngine
				extends PhutilSyntaxHighlighterEngine {

				private $config = array();

				public function setConfig($key, $value) {
				$this->config[$key] = $value;
				return $this;
				}

				public function getLanguageFromFilename($filename) {
				static $default_map = array(
				// All files which have file extensions that we haven't already matched
				// map to their extensions.
				'@\\.([^./]+)$@' => 1,
				);

				$maps = array();
				if (!empty($this->config['filename.map'])) {
				$maps[] = $this->config['filename.map'];
				}
				$maps[] = $default_map;

				foreach ($maps as $map) {
				foreach ($map as $regexp => $lang) {
				$matches = null;
				if (preg_match($regexp, $filename, $matches)) {
				if (is_numeric($lang)) {
				return idx($matches, $lang);
				} else {
				return $lang;
				}
				}
				}
				}

				return null;
				}

				public function getHighlightFuture($language, $source) {
				if ($language === null) {
				$language = PhutilLanguageGuesser::guessLanguage($source);
				}

				$have_pygments = !empty($this->config['pygments.enabled']);

				if ($language == 'php' && PhutilXHPASTBinary::isAvailable()) {
				return id(new PhutilXHPASTSyntaxHighlighter())
				->getHighlightFuture($source);
				}

				if ($language == 'console') {
				return id(new PhutilConsoleSyntaxHighlighter())
				->getHighlightFuture($source);
				}

				if ($language == 'diviner' \|\| $language == 'remarkup') {
				return id(new PhutilDivinerSyntaxHighlighter())
				->getHighlightFuture($source);
				}

				if ($language == 'rainbow') {
				return id(new PhutilRainbowSyntaxHighlighter())
				->getHighlightFuture($source);
				}

				if ($language == 'php') {
				return id(new PhutilLexerSyntaxHighlighter())
				->setConfig('lexer', new PhutilPHPFragmentLexer())
				->setConfig('language', 'php')
				->getHighlightFuture($source);
				}

				if ($language == 'py' \|\| $language == 'python') {
				return id(new PhutilLexerSyntaxHighlighter())
				->setConfig('lexer', new PhutilPythonFragmentLexer())
				->setConfig('language', 'py')
				->getHighlightFuture($source);
				}

				if ($language == 'java') {
				return id(new PhutilLexerSyntaxHighlighter())
				->setConfig('lexer', new PhutilJavaFragmentLexer())
				->setConfig('language', 'java')
				->getHighlightFuture($source);
				}

				if ($language == 'json') {
				return id(new PhutilLexerSyntaxHighlighter())
				->setConfig('lexer', new PhutilJSONFragmentLexer())
				->getHighlightFuture($source);
				}

				if ($language == 'invisible') {
				return id(new PhutilInvisibleSyntaxHighlighter())
				->getHighlightFuture($source);
				}

				// Don't invoke Pygments for plain text, since it's expensive and has
				// no effect.
				if ($language !== 'text' && $language !== 'txt') {
				if ($have_pygments) {
				return id(new PhutilPygmentsSyntaxHighlighter())
				->setConfig('language', $language)
				->getHighlightFuture($source);
				}
				}

				return id(new PhutilDefaultSyntaxHighlighter())
				->getHighlightFuture($source);
				}

				}