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[yaffs-website] / 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];
+                       if (!empty($line) && ltrim($line) !== '' &&
+                               !($line[0] === "\t" || $line[0] === " " && strncmp($line, '    ', 4) === 0) &&
+                               !$this->identifyHeadline($line, $lines, $i))
+                       {
+                               $content[] = $line;
+                       } else {
+                               break;
+                       }
+               }
+               $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]);
+       }
+}