init

vendor/cebe/markdown/Markdown.php

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+<?php
+/**
+ * @copyright Copyright (c) 2014 Carsten Brandt
+ * @license https://github.com/cebe/markdown/blob/master/LICENSE
+ * @link https://github.com/cebe/markdown#readme
+ */
+
+namespace cebe\markdown;
+
+/**
+ * Markdown parser for the [initial markdown spec](http://daringfireball.net/projects/markdown/syntax).
+ *
+ * @author Carsten Brandt <mail@cebe.cc>
+ */
+class Markdown extends Parser
+{
+	// include block element parsing using traits
+	use block\CodeTrait;
+	use block\HeadlineTrait;
+	use block\HtmlTrait {
+		parseInlineHtml as private;
+	}
+	use block\ListTrait {
+		// Check Ul List before headline
+		identifyUl as protected identifyBUl;
+		consumeUl as protected consumeBUl;
+	}
+	use block\QuoteTrait;
+	use block\RuleTrait {
+		// Check Hr before checking lists
+		identifyHr as protected identifyAHr;
+		consumeHr as protected consumeAHr;
+	}
+
+	// include inline element parsing using traits
+	use inline\CodeTrait;
+	use inline\EmphStrongTrait;
+	use inline\LinkTrait;
+
+	/**
+	 * @var boolean whether to format markup according to HTML5 spec.
+	 * Defaults to `false` which means that markup is formatted as HTML4.
+	 */
+	public $html5 = false;
+
+	/**
+	 * @var array these are "escapeable" characters. When using one of these prefixed with a
+	 * backslash, the character will be outputted without the backslash and is not interpreted
+	 * as markdown.
+	 */
+	protected $escapeCharacters = [
+		'\\', // backslash
+		'`', // backtick
+		'*', // asterisk
+		'_', // underscore
+		'{', '}', // curly braces
+		'[', ']', // square brackets
+		'(', ')', // parentheses
+		'#', // hash mark
+		'+', // plus sign
+		'-', // minus sign (hyphen)
+		'.', // dot
+		'!', // exclamation mark
+		'<', '>',
+	];
+
+
+	/**
+	 * @inheritDoc
+	 */
+	protected function prepare()
+	{
+		// reset references
+		$this->references = [];
+	}
+
+	/**
+	 * Consume lines for a paragraph
+	 *
+	 * Allow headlines and code to break paragraphs
+	 */
+	protected function consumeParagraph($lines, $current)
+	{
+		// consume until newline
+		$content = [];
+		for ($i = $current, $count = count($lines); $i < $count; $i++) {
+			$line = $lines[$i];
+
+			// a list may break a paragraph when it is inside of a list
+			if (isset($this->context[1]) && $this->context[1] === 'list' && !ctype_alpha($line[0]) && (
+				$this->identifyUl($line, $lines, $i) || $this->identifyOl($line, $lines, $i))) {
+				break;
+			}
+
+			if ($line === '' || ltrim($line) === '' || $this->identifyHeadline($line, $lines, $i)) {
+				break;
+			} elseif ($line[0] === "\t" || $line[0] === " " && strncmp($line, '    ', 4) === 0) {
+				// possible beginning of a code block
+				// but check for continued inline HTML
+				// e.g. <img src="file.jpg"
+				//           alt="some alt aligned with src attribute" title="some text" />
+				if (preg_match('~<\w+([^>]+)$~s', implode("\n", $content))) {
+					$content[] = $line;
+				} else {
+					break;
+				}
+			} else {
+				$content[] = $line;
+			}
+		}
+		$block = [
+			'paragraph',
+			'content' => $this->parseInline(implode("\n", $content)),
+		];
+		return [$block, --$i];
+	}
+
+
+	/**
+	 * @inheritdocs
+	 *
+	 * Parses a newline indicated by two spaces on the end of a markdown line.
+	 */
+	protected function renderText($text)
+	{
+		return str_replace("  \n", $this->html5 ? "<br>\n" : "<br />\n", $text[1]);
+	}
+}