Differential D20977 Diff 49988 src/infrastructure/markup/syntax/highlighter/PhutilLexerSyntaxHighlighter.php

Changeset View

Standalone View

				<?php

				final class PhutilLexerSyntaxHighlighter extends PhutilSyntaxHighlighter {

				private $config = array();

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

				public function getHighlightFuture($source) {
				$strip = false;
				$state = 'start';
				$lang = idx($this->config, 'language');

				if ($lang == 'php') {
				if (strpos($source, '<?') === false) {
				$state = 'php';
				}
				}

				$lexer = idx($this->config, 'lexer');
				$tokens = $lexer->getTokens($source, $state);
				$tokens = $lexer->mergeTokens($tokens);

				$result = array();
				foreach ($tokens as $token) {
				list($type, $value, $context) = $token;

				$data_name = null;
				switch ($type) {
				case 'nc':
				case 'nf':
				case 'na':
				$data_name = $value;
				break;
				}

				if (strpos($value, "\n") !== false) {
				$value = explode("\n", $value);
				} else {
				$value = array($value);
				}
				foreach ($value as $part) {
				if (strlen($part)) {
				if ($type) {
				$result[] = phutil_tag(
				'span',
				array(
				'class' => $type,
				'data-symbol-context' => $context,
				'data-symbol-name' => $data_name,
				),
				$part);
				} else {
				$result[] = $part;
				}
				}
				$result[] = "\n";
				}

				// Throw away the last "\n".
				array_pop($result);
				}

				$result = phutil_implode_html('', $result);

				return new ImmediateFuture($result);
				}

				}