diff options
Diffstat (limited to 'framework/3rdParty/Parsedown/Parsedown.php')
| -rwxr-xr-x | framework/3rdParty/Parsedown/Parsedown.php | 1135 |
1 files changed, 0 insertions, 1135 deletions
diff --git a/framework/3rdParty/Parsedown/Parsedown.php b/framework/3rdParty/Parsedown/Parsedown.php deleted file mode 100755 index ebc80974..00000000 --- a/framework/3rdParty/Parsedown/Parsedown.php +++ /dev/null @@ -1,1135 +0,0 @@ -<?php - -# -# -# Parsedown -# http://parsedown.org -# -# (c) Emanuil Rusev -# http://erusev.com -# -# For the full license information, view the LICENSE file that was distributed -# with this source code. -# -# - -class Parsedown -{ - # Multiton - - static function instance($name = 'default') - { - if (isset(self::$instances[$name])) - { - return self::$instances[$name]; - } - - $instance = new Parsedown(); - - self::$instances[$name] = $instance; - - return $instance; - } - - private static $instances = array(); - - # - # Setters - # - - # Enables GFM line breaks. - - function set_breaks_enabled($breaks_enabled) - { - $this->breaks_enabled = $breaks_enabled; - - return $this; - } - - private $breaks_enabled = false; - - # - # Synopsis - # - - # Markdown is intended to be easy-to-read by humans - those of us who read - # line by line, left to right, top to bottom. In order to take advantage of - # this, Parsedown tries to read in a similar way. It breaks texts into - # lines, it iterates through them and it looks at how they start and relate - # to each other. - - # - # Methods - # - - function parse($text) - { - # standardize line breaks - $text = str_replace("\r\n", "\n", $text); - $text = str_replace("\r", "\n", $text); - - # replace tabs with spaces - $text = str_replace("\t", ' ', $text); - - # remove surrounding line breaks - $text = trim($text, "\n"); - - # split text into lines - $lines = explode("\n", $text); - - # convert lines into html - $text = $this->parse_block_elements($lines); - - # remove trailing line breaks - $text = chop($text, "\n"); - - return $text; - } - - # - # Private - - private function parse_block_elements(array $lines, $context = '') - { - $blocks = array(); - - $block = array( - 'type' => '', - ); - - foreach ($lines as $line) - { - # context - - switch ($block['type']) - { - case 'fenced': - - if ( ! isset($block['closed'])) - { - if (preg_match('/^[ ]*'.$block['fence'][0].'{3,}[ ]*$/', $line)) - { - $block['closed'] = true; - } - else - { - if ($block['text'] !== '') - { - $block['text'] .= "\n"; - } - - $block['text'] .= $line; - } - - continue 2; - } - - break; - - case 'markup': - - if ( ! isset($block['closed'])) - { - if (strpos($line, $block['start']) !== false) # opening tag - { - $block['depth']++; - } - - if (strpos($line, $block['end']) !== false) # closing tag - { - if ($block['depth'] > 0) - { - $block['depth']--; - } - else - { - $block['closed'] = true; - } - } - - $block['text'] .= "\n".$line; - - continue 2; - } - - break; - } - - # ~ - - $indentation = 0; - - while(isset($line[$indentation]) and $line[$indentation] === ' ') - { - $indentation++; - } - - $outdented_line = $indentation > 0 ? ltrim($line) : $line; - - # blank - - if ($outdented_line === '') - { - $block['interrupted'] = true; - - continue; - } - - # context - - switch ($block['type']) - { - case 'quote': - - if ( ! isset($block['interrupted'])) - { - $line = preg_replace('/^[ ]*>[ ]?/', '', $line); - - $block['lines'] []= $line; - - continue 2; - } - - break; - - case 'li': - - if ($block['indentation'] === $indentation and preg_match('/^'.$block['marker'].'[ ]+(.*)/', $outdented_line, $matches)) - { - unset($block['last']); - - $blocks []= $block; - - $block['last'] = true; - $block['lines'] = array($matches[1]); - - unset($block['first']); - unset($block['interrupted']); - - continue 2; - } - - if ( ! isset($block['interrupted'])) - { - $line = preg_replace('/^[ ]{0,'.$block['baseline'].'}/', '', $line); - - $block['lines'] []= $line; - - continue 2; - } - elseif ($line[0] === ' ') - { - $block['lines'] []= ''; - - $line = preg_replace('/^[ ]{0,'.$block['baseline'].'}/', '', $line); - - $block['lines'] []= $line; - - unset($block['interrupted']); - - continue 2; - } - - break; - } - - # indentation sensitive types - - switch ($line[0]) - { - case ' ': - - # code - - if ($indentation >= 4) - { - $code_line = substr($line, 4); - - if ($block['type'] === 'code') - { - if (isset($block['interrupted'])) - { - $block['text'] .= "\n"; - - unset($block['interrupted']); - } - - $block['text'] .= "\n".$code_line; - } - else - { - $blocks []= $block; - - $block = array( - 'type' => 'code', - 'text' => $code_line, - ); - } - - continue 2; - } - - break; - - case '#': - - # atx heading (#) - - if (isset($line[1])) - { - $blocks []= $block; - - $level = 1; - - while (isset($line[$level]) and $line[$level] === '#') - { - $level++; - } - - $block = array( - 'type' => 'heading', - 'text' => trim($line, '# '), - 'level' => $level, - ); - - continue 2; - } - - break; - - case '-': - case '=': - - # setext heading (===) - - if ($block['type'] === 'paragraph' and isset($block['interrupted']) === false) - { - $chopped_line = chop($line); - - $i = 1; - - while (isset($chopped_line[$i])) - { - if ($chopped_line[$i] !== $line[0]) - { - break 2; - } - - $i++; - } - - $block['type'] = 'heading'; - - $block['level'] = $line[0] === '-' ? 2 : 1; - - continue 2; - } - - break; - } - - # indentation insensitive types - - switch ($outdented_line[0]) - { - case '<': - - $position = strpos($outdented_line, '>'); - - if ($position > 1) - { - $substring = substr($outdented_line, 1, $position - 1); - - $substring = chop($substring); - - if (substr($substring, -1) === '/') - { - $is_self_closing = true; - - $substring = substr($substring, 0, -1); - } - - $position = strpos($substring, ' '); - - if ($position) - { - $name = substr($substring, 0, $position); - } - else - { - $name = $substring; - } - - if ( ! ctype_alpha($name)) - { - break; - } - - if (in_array($name, self::$text_level_elements)) - { - break; - } - - $blocks []= $block; - - if (isset($is_self_closing)) - { - $block = array( - 'type' => 'self-closing tag', - 'text' => $outdented_line, - ); - - unset($is_self_closing); - - continue 2; - } - - $block = array( - 'type' => 'markup', - 'text' => $outdented_line, - 'start' => '<'.$name.'>', - 'end' => '</'.$name.'>', - 'depth' => 0, - ); - - if (strpos($outdented_line, $block['end'])) - { - $block['closed'] = true; - } - - continue 2; - } - - break; - - case '>': - - # quote - - if (preg_match('/^>[ ]?(.*)/', $outdented_line, $matches)) - { - $blocks []= $block; - - $block = array( - 'type' => 'quote', - 'lines' => array( - $matches[1], - ), - ); - - continue 2; - } - - break; - - case '[': - - # reference - - $position = strpos($outdented_line, ']:'); - - if ($position) - { - $reference = array(); - - $label = substr($outdented_line, 1, $position - 1); - $label = strtolower($label); - - $substring = substr($outdented_line, $position + 2); - $substring = trim($substring); - - if ($substring === '') - { - break; - } - - if ($substring[0] === '<') - { - $position = strpos($substring, '>'); - - if ($position === false) - { - break; - } - - $reference['»'] = substr($substring, 1, $position - 1); - - $substring = substr($substring, $position + 1); - } - else - { - $position = strpos($substring, ' '); - - if ($position === false) - { - $reference['»'] = $substring; - - $substring = false; - } - else - { - $reference['»'] = substr($substring, 0, $position); - - $substring = substr($substring, $position + 1); - } - } - - if ($substring !== false) - { - if ($substring[0] !== '"' and $substring[0] !== "'" and $substring[0] !== '(') - { - break; - } - - $last_char = substr($substring, -1); - - if ($last_char !== '"' and $last_char !== "'" and $last_char !== ')') - { - break; - } - - $reference['#'] = substr($substring, 1, -1); - } - - $this->reference_map[$label] = $reference; - - continue 2; - } - - break; - - case '`': - case '~': - - # fenced code block - - if (preg_match('/^([`]{3,}|[~]{3,})[ ]*(\S+)?[ ]*$/', $outdented_line, $matches)) - { - $blocks []= $block; - - $block = array( - 'type' => 'fenced', - 'text' => '', - 'fence' => $matches[1], - ); - - if (isset($matches[2])) - { - $block['language'] = $matches[2]; - } - - continue 2; - } - - break; - - case '*': - case '+': - case '-': - case '_': - - # hr - - if (preg_match('/^([-*_])([ ]{0,2}\1){2,}[ ]*$/', $outdented_line)) - { - $blocks []= $block; - - $block = array( - 'type' => 'rule', - ); - - continue 2; - } - - # li - - if (preg_match('/^([*+-][ ]+)(.*)/', $outdented_line, $matches)) - { - $blocks []= $block; - - $baseline = $indentation + strlen($matches[1]); - - $block = array( - 'type' => 'li', - 'indentation' => $indentation, - 'baseline' => $baseline, - 'marker' => '[*+-]', - 'first' => true, - 'last' => true, - 'lines' => array(), - ); - - $block['lines'] []= preg_replace('/^[ ]{0,4}/', '', $matches[2]); - - continue 2; - } - } - - # li - - if ($outdented_line[0] <= '9' and preg_match('/^(\d+[.][ ]+)(.*)/', $outdented_line, $matches)) - { - $blocks []= $block; - - $baseline = $indentation + strlen($matches[1]); - - $block = array( - 'type' => 'li', - 'indentation' => $indentation, - 'baseline' => $baseline, - 'marker' => '\d+[.]', - 'first' => true, - 'last' => true, - 'ordered' => true, - 'lines' => array(), - ); - - $block['lines'] []= preg_replace('/^[ ]{0,4}/', '', $matches[2]); - - continue; - } - - # paragraph - - if ($block['type'] === 'paragraph') - { - if (isset($block['interrupted'])) - { - $blocks []= $block; - - $block['text'] = $line; - - unset($block['interrupted']); - } - else - { - if ($this->breaks_enabled) - { - $block['text'] .= ' '; - } - - $block['text'] .= "\n".$line; - } - } - else - { - $blocks []= $block; - - $block = array( - 'type' => 'paragraph', - 'text' => $line, - ); - } - } - - $blocks []= $block; - - unset($blocks[0]); - - # $blocks » HTML - - $markup = ''; - - foreach ($blocks as $block) - { - switch ($block['type']) - { - case 'paragraph': - - $text = $this->parse_span_elements($block['text']); - - if ($context === 'li' and $markup === '') - { - if (isset($block['interrupted'])) - { - $markup .= "\n".'<p>'.$text.'</p>'."\n"; - } - else - { - $markup .= $text; - - if (isset($blocks[2])) - { - $markup .= "\n"; - } - } - } - else - { - $markup .= '<p>'.$text.'</p>'."\n"; - } - - break; - - case 'quote': - - $text = $this->parse_block_elements($block['lines']); - - $markup .= '<blockquote>'."\n".$text.'</blockquote>'."\n"; - - break; - - case 'code': - - $text = htmlspecialchars($block['text'], ENT_NOQUOTES, 'UTF-8'); - - $markup .= '<pre><code>'.$text.'</code></pre>'."\n"; - - break; - - case 'fenced': - - $text = htmlspecialchars($block['text'], ENT_NOQUOTES, 'UTF-8'); - - $markup .= '<pre><code'; - - if (isset($block['language'])) - { - $markup .= ' class="language-'.$block['language'].'"'; - } - - $markup .= '>'.$text.'</code></pre>'."\n"; - - break; - - case 'heading': - - $text = $this->parse_span_elements($block['text']); - - $markup .= '<h'.$block['level'].'>'.$text.'</h'.$block['level'].'>'."\n"; - - break; - - case 'rule': - - $markup .= '<hr />'."\n"; - - break; - - case 'li': - - if (isset($block['first'])) - { - $type = isset($block['ordered']) ? 'ol' : 'ul'; - - $markup .= '<'.$type.'>'."\n"; - } - - if (isset($block['interrupted']) and ! isset($block['last'])) - { - $block['lines'] []= ''; - } - - $text = $this->parse_block_elements($block['lines'], 'li'); - - $markup .= '<li>'.$text.'</li>'."\n"; - - if (isset($block['last'])) - { - $type = isset($block['ordered']) ? 'ol' : 'ul'; - - $markup .= '</'.$type.'>'."\n"; - } - - break; - - case 'markup': - - $markup .= $block['text']."\n"; - - break; - - default: - - $markup .= $block['text']."\n"; - } - } - - return $markup; - } - - private function parse_span_elements($text, $markers = array(" \n", '![', '&', '*', '<', '[', '\\', '_', '`', 'http', '~~')) - { - if (isset($text[1]) === false or $markers === array()) - { - return $text; - } - - # ~ - - $markup = ''; - - while ($markers) - { - $closest_marker = null; - $closest_marker_index = 0; - $closest_marker_position = null; - - foreach ($markers as $index => $marker) - { - $marker_position = strpos($text, $marker); - - if ($marker_position === false) - { - unset($markers[$index]); - - continue; - } - - if ($closest_marker === null or $marker_position < $closest_marker_position) - { - $closest_marker = $marker; - $closest_marker_index = $index; - $closest_marker_position = $marker_position; - } - } - - # ~ - - if ($closest_marker === null or isset($text[$closest_marker_position + 1]) === false) - { - $markup .= $text; - - break; - } - else - { - $markup .= substr($text, 0, $closest_marker_position); - } - - $text = substr($text, $closest_marker_position); - - # ~ - - unset($markers[$closest_marker_index]); - - # ~ - - switch ($closest_marker) - { - case " \n": - - $markup .= '<br />'."\n"; - - $offset = 3; - - break; - - case '![': - case '[': - - if (strpos($text, ']') and preg_match('/\[((?:[^][]|(?R))*)\]/', $text, $matches)) - { - $element = array( - '!' => $text[0] === '!', - 'a' => $matches[1], - ); - - $offset = strlen($matches[0]); - - if ($element['!']) - { - $offset++; - } - - $remaining_text = substr($text, $offset); - - if ($remaining_text[0] === '(' and preg_match('/\([ ]*(.*?)(?:[ ]+[\'"](.+?)[\'"])?[ ]*\)/', $remaining_text, $matches)) - { - $element['»'] = $matches[1]; - - if (isset($matches[2])) - { - $element['#'] = $matches[2]; - } - - $offset += strlen($matches[0]); - } - elseif ($this->reference_map) - { - $reference = $element['a']; - - if (preg_match('/^\s*\[(.*?)\]/', $remaining_text, $matches)) - { - $reference = $matches[1] ? $matches[1] : $element['a']; - - $offset += strlen($matches[0]); - } - - $reference = strtolower($reference); - - if (isset($this->reference_map[$reference])) - { - $element['»'] = $this->reference_map[$reference]['»']; - - if (isset($this->reference_map[$reference]['#'])) - { - $element['#'] = $this->reference_map[$reference]['#']; - } - } - else - { - unset($element); - } - } - else - { - unset($element); - } - } - - if (isset($element)) - { - $element['»'] = str_replace('&', '&', $element['»']); - $element['»'] = str_replace('<', '<', $element['»']); - - if ($element['!']) - { - $markup .= '<img alt="'.$element['a'].'" src="'.$element['»'].'"'; - - if (isset($element['#'])) - { - $markup .= ' title="'.$element['#'].'"'; - } - - $markup .= ' />'; - } - else - { - $element['a'] = $this->parse_span_elements($element['a'], $markers); - - $markup .= '<a href="'.$element['»'].'"'; - - if (isset($element['#'])) - { - $markup .= ' title="'.$element['#'].'"'; - } - - $markup .= '>'.$element['a'].'</a>'; - } - - unset($element); - } - else - { - $markup .= $closest_marker; - - $offset = $closest_marker === '![' ? 2 : 1; - } - - break; - - case '&': - - if (preg_match('/^&#?\w+;/', $text, $matches)) - { - $markup .= $matches[0]; - - $offset = strlen($matches[0]); - } - else - { - $markup .= '&'; - - $offset = 1; - } - - break; - - case '*': - case '_': - - if ($text[1] === $closest_marker and preg_match(self::$strong_regex[$closest_marker], $text, $matches)) - { - $markers[] = $closest_marker; - $matches[1] = $this->parse_span_elements($matches[1], $markers); - - $markup .= '<strong>'.$matches[1].'</strong>'; - } - elseif (preg_match(self::$em_regex[$closest_marker], $text, $matches)) - { - $markers[] = $closest_marker; - $matches[1] = $this->parse_span_elements($matches[1], $markers); - - $markup .= '<em>'.$matches[1].'</em>'; - } - - if (isset($matches) and $matches) - { - $offset = strlen($matches[0]); - } - else - { - $markup .= $closest_marker; - - $offset = 1; - } - - break; - - case '<': - - if (strpos($text, '>') !== false) - { - if ($text[1] === 'h' and preg_match('/^<(https?:[\/]{2}[^\s]+?)>/i', $text, $matches)) - { - $element_url = $matches[1]; - $element_url = str_replace('&', '&', $element_url); - $element_url = str_replace('<', '<', $element_url); - - $markup .= '<a href="'.$element_url.'">'.$element_url.'</a>'; - - $offset = strlen($matches[0]); - } - elseif (strpos($text, '@') > 1 and preg_match('/<(\S+?@\S+?)>/', $text, $matches)) - { - $markup .= '<a href="mailto:'.$matches[1].'">'.$matches[1].'</a>'; - - $offset = strlen($matches[0]); - } - elseif (preg_match('/^<\/?\w.*?>/', $text, $matches)) - { - $markup .= $matches[0]; - - $offset = strlen($matches[0]); - } - else - { - $markup .= '<'; - - $offset = 1; - } - } - else - { - $markup .= '<'; - - $offset = 1; - } - - break; - - case '\\': - - if (in_array($text[1], self::$special_characters)) - { - $markup .= $text[1]; - - $offset = 2; - } - else - { - $markup .= '\\'; - - $offset = 1; - } - - break; - - case '`': - - if (preg_match('/^(`+)[ ]*(.+?)[ ]*(?<!`)\1(?!`)/', $text, $matches)) - { - $element_text = $matches[2]; - $element_text = htmlspecialchars($element_text, ENT_NOQUOTES, 'UTF-8'); - - $markup .= '<code>'.$element_text.'</code>'; - - $offset = strlen($matches[0]); - } - else - { - $markup .= '`'; - - $offset = 1; - } - - break; - - case 'http': - - if (preg_match('/^https?:[\/]{2}[^\s]+\b\/*/ui', $text, $matches)) - { - $element_url = $matches[0]; - $element_url = str_replace('&', '&', $element_url); - $element_url = str_replace('<', '<', $element_url); - - $markup .= '<a href="'.$element_url.'">'.$element_url.'</a>'; - - $offset = strlen($matches[0]); - } - else - { - $markup .= 'http'; - - $offset = 4; - } - - break; - - case '~~': - - if (preg_match('/^~~(?=\S)(.+?)(?<=\S)~~/', $text, $matches)) - { - $matches[1] = $this->parse_span_elements($matches[1], $markers); - - $markup .= '<del>'.$matches[1].'</del>'; - - $offset = strlen($matches[0]); - } - else - { - $markup .= '~~'; - - $offset = 2; - } - - break; - } - - if (isset($offset)) - { - $text = substr($text, $offset); - } - - $markers[$closest_marker_index] = $closest_marker; - } - - return $markup; - } - - # - # Fields - # - - private $reference_map = array(); - - # - # Read-only - - private static $strong_regex = array( - '*' => '/^[*]{2}((?:[^*]|[*][^*]*[*])+?)[*]{2}(?![*])/s', - '_' => '/^__((?:[^_]|_[^_]*_)+?)__(?!_)/us', - ); - - private static $em_regex = array( - '*' => '/^[*]((?:[^*]|[*][*][^*]+?[*][*])+?)[*](?![*])/s', - '_' => '/^_((?:[^_]|__[^_]*__)+?)_(?!_)\b/us', - ); - - private static $special_characters = array( - '\\', '`', '*', '_', '{', '}', '[', ']', '(', ')', '>', '#', '+', '-', '.', '!', - ); - - private static $text_level_elements = array( - 'a', 'br', 'bdo', 'abbr', 'blink', 'nextid', 'acronym', 'basefont', - 'b', 'em', 'big', 'cite', 'small', 'spacer', 'listing', - 'i', 'rp', 'sub', 'code', 'strike', 'marquee', - 'q', 'rt', 'sup', 'font', 'strong', - 's', 'tt', 'var', 'mark', - 'u', 'xm', 'wbr', 'nobr', - 'ruby', - 'span', - 'time', - ); -} |