#Parsedown - version fonction #http://parsedown.org/ <?php # # # Parsedown # http://parsedown.org # # (c) Emanuil Rusev # http://erusev.com # #This version is not the original: it's a class to function conversion by Bronco (http:www.warriordudimanche.net) #Thanks a lot to Emanuil Rusev for this script ! It saved me lots of time ! ;-) global $escape_sequence_map; function parse($text) { # removes UTF-8 BOM and marker characters $text = preg_replace('{^\xEF\xBB\xBF|\x1A}', '', $text); # removes \r characters $text = str_replace("\r\n", "\n", $text); $text = str_replace("\r", "\n", $text); # replaces tabs with spaces $text = str_replace("\t", ' ', $text); # encodes escape sequences if (strpos($text, '\\') !== FALSE) { $escape_sequences = array('\\\\', '\`', '\*', '\_', '\{', '\}', '\[', '\]', '\(', '\)', '\>', '\#', '\+', '\-', '\.', '\!'); foreach ($escape_sequences as $index => $escape_sequence) { if (strpos($text, $escape_sequence) !== FALSE) { $code = "\x1A".'\\'.$index.';'; $text = str_replace($escape_sequence, $code, $text); $escape_sequence_map[$code] = $escape_sequence; } } } # ~ $text = preg_replace('/\n\s*\n/', "\n\n", $text); $text = trim($text, "\n"); $lines = explode("\n", $text); $text = parse_block_elements($lines); # decodes escape sequences if (!empty($escape_sequence_map)){ foreach ($escape_sequence_map as $code => $escape_sequence) { $text = str_replace($code, $escape_sequence[1], $text); } } $text = rtrim($text, "\n"); return $text; } function parse_block_elements(array $lines, $context = '') { $elements = array(); $element = array('type' => '',); foreach ($lines as $line) { # markup (open) if ($element['type'] === 'markup' and ! isset($element['closed'])) { if (preg_match('{<'.$element['subtype'].'>$}', $line)) # opening tag { $element['depth']++; } if (preg_match('{</'.$element['subtype'].'>$}', $line)) # closing tag { $element['depth'] > 0 ? $element['depth']-- : $element['closed'] = true; } $element['text'] .= "\n".$line; continue; } # * if ($line === '') { $element['interrupted'] = true; continue; } # blockquote (existing) if ($element['type'] === 'blockquote' and ! isset($element['interrupted'])) { $line = preg_replace('/^[ ]*>[ ]?/', '', $line); $element['lines'] []= $line; continue; } # list (existing) if ($element['type'] === 'li') { if (preg_match('/^([ ]{0,3})(\d+[.]|[*+-])[ ](.*)/', $line, $matches)) { if ($element['indentation'] !== $matches[1]) { $element['lines'] []= $line; } else { unset($element['last']); $elements []= $element; $element = array( 'type' => 'li', 'indentation' => $matches[1], 'last' => true, 'lines' => array( preg_replace('/^[ ]{0,4}/', '', $matches[3]), ), ); } continue; } if (isset($element['interrupted'])) { if ($line[0] === ' ') { $element['lines'] []= ''; $line = preg_replace('/^[ ]{0,4}/', '', $line); $element['lines'] []= $line; continue; } } else { $line = preg_replace('/^[ ]{0,4}/', '', $line); $element['lines'] []= $line; continue; } } # paragraph if ($line[0] >= 'a' or $line[0] >= 'A' and $line[0] <= 'Z') { goto paragraph; } # code block if ($line[0] === ' ' and preg_match('/^[ ]{4}(.*)/', $line, $matches)) { if (trim($line) === ''){continue;} if ($element['type'] === 'code') { if (isset($element['interrupted'])) { $element['text'] .= "\n"; unset ($element['interrupted']); } $element['text'] .= "\n".$matches[1]; } else { $elements []= $element; $element = array( 'type' => 'code', 'text' => $matches[1], ); } continue; } # setext heading (---) if ($line[0] === '-' and $element['type'] === 'p' and ! isset($element['interrupted']) and preg_match('/^[-]+[ ]*$/', $line)) { $element['type'] = 'h.'; $element['level'] = 2; continue; } # atx heading (#) if ($line[0] === '#' and preg_match('/^(#{1,6})[ ]*(.+?)[ ]*#*$/', $line, $matches)) { $elements []= $element; $level = strlen($matches[1]); $element = array( 'type' => 'h.', 'text' => $matches[2], 'level' => $level, ); continue; } # setext heading (===) if ($line[0] === '=' and $element['type'] === 'p' and ! isset($element['interrupted']) and preg_match('/^[=]+[ ]*$/', $line)) { $element['type'] = 'h.'; $element['level'] = 1; continue; } $deindented_line = $line[0] !== ' ' ? $line : ltrim($line); if ($deindented_line === ''){continue;} # reference if ($deindented_line[0] === '[' and preg_match('/^\[(.+?)\]:[ ]*([^ ]+)/', $deindented_line, $matches)) { $label = strtolower($matches[1]); $url = trim($matches[2], '<>'); $reference_map[$label] = $url; continue; } # blockquote if ($deindented_line[0] === '>' and preg_match('/^>[ ]?(.*)/', $deindented_line, $matches)) { if ($element['type'] === 'blockquote') { if (isset($element['interrupted'])) { $element['lines'] []= ''; unset($element['interrupted']); } $element['lines'] []= $matches[1]; } else { $elements []= $element; $element = array( 'type' => 'blockquote', 'lines' => array( $matches[1], ), ); } continue; } # markup if ($deindented_line[0] === '<') { # self-closing tag if (preg_match('{^<.+?/>$}', $deindented_line)) { $elements []= $element; $element = array( 'type' => '', 'text' => $deindented_line, ); continue; } # opening tag if (preg_match('{^<(\w+)(?:[ ].*?)?>}', $deindented_line, $matches)) { $elements []= $element; $element = array( 'type' => 'markup', 'subtype' => strtolower($matches[1]), 'text' => $deindented_line, 'depth' => 0, ); preg_match('{</'.$matches[1].'>\s*$}', $deindented_line) and $element['closed'] = true; continue; } } # horizontal rule if (preg_match('/^([-*_])([ ]{0,2}\1){2,}[ ]*$/', $deindented_line)) { $elements []= $element; $element = array('type' => 'hr',); continue; } # list item if (preg_match('/^([ ]*)(\d+[.]|[*+-])[ ](.*)/', $line, $matches)) { $elements []= $element; $element = array( 'type' => 'li', 'ordered' => isset($matches[2][1]), 'indentation' => $matches[1], 'last' => true, 'lines' => array( preg_replace('/^[ ]{0,4}/', '', $matches[3]), ), ); continue; } paragraph: if ($element['type'] === 'p') { if (isset($element['interrupted'])) { $elements []= $element; $element['text'] = $line; unset($element['interrupted']); } else {$element['text'] .= "\n".$line;} } else { $elements []= $element; $element = array( 'type' => 'p', 'text' => $line, ); } } $elements []= $element; array_shift($elements); $markup = ''; foreach ($elements as $index => $element) { switch ($element['type']) { case 'p': $text = parse_span_elements($element['text']); $text = preg_replace('/[ ]{2}\n/', '<br />'."\n", $text); if ($context === 'li' and $index === 0) { if (isset($element['interrupted'])) { $markup .= "\n".'<p>'.$text.'</p>'."\n";} else {$markup .= $text;} } else{$markup .= '<p>'.$text.'</p>'."\n";} break; case 'blockquote': $text =parse_block_elements($element['lines']); $markup .= '<blockquote>'."\n".$text.'</blockquote>'."\n"; break; case 'code': $text = htmlentities($element['text'], ENT_NOQUOTES); strpos($text, "\x1A\\") !== FALSE and $text = strtr($text, $escape_sequence_map); $markup .= '<pre><code>'.$text.'</code></pre>'."\n"; break; case 'h.': $text = parse_span_elements($element['text']); $markup .= '<h'.$element['level'].'>'.$text.'</h'.$element['level'].'>'."\n"; break; case 'hr': $markup .= '<hr />'."\n"; break; case 'li': if (isset($element['ordered'])) # first { $list_type = $element['ordered'] ? 'ol' : 'ul'; $markup .= '<'.$list_type.'>'."\n"; } if (isset($element['interrupted']) and ! isset($element['last'])) { $element['lines'] []= ''; } $text = parse_block_elements($element['lines'], 'li'); $markup .= '<li>'.$text.'</li>'."\n"; isset($element['last']) and $markup .= '</'.$list_type.'>'."\n"; break; default: $markup .= $element['text']."\n"; } } return $markup; } function parse_span_elements($text) { $map = array(); $index = 0; # code span if (strpos($text, '`') !== FALSE and preg_match_all('/`(.+?)`/', $text, $matches, PREG_SET_ORDER)) { foreach ($matches as $matches) { $element_text = $matches[1]; $element_text = htmlentities($element_text, ENT_NOQUOTES); # decodes escape sequences $escape_sequence_map and strpos($element_text, "\x1A") !== FALSE and $element_text = strtr($element_text, $escape_sequence_map); # composes element $element = '<code>'.$element_text.'</code>'; # encodes element $code = "\x1A".'$'.$index; $text = str_replace($matches[0], $code, $text); $map[$code] = $element; $index ++; } } # inline link or image if (strpos($text, '](') !== FALSE and preg_match_all('/(!?)(\[((?:[^\[\]]|(?2))*)\])\((.*?)\)/', $text, $matches, PREG_SET_ORDER)) # inline { foreach ($matches as $matches) { $url = $matches[4]; strpos($url, '&') !== FALSE and $url = preg_replace('/&(?!#?\w+;)/', '&amp;', $url); if ($matches[1]) # image { $element = '<img alt="'.$matches[3].'" src="'.$url.'">'; } else { $element_text =parse_span_elements($matches[3]); $element = '<a href="'.$url.'">'.$element_text.'</a>'; } $code = "\x1A".'$'.$index; $text = str_replace($matches[0], $code, $text); $map[$code] = $element; $index ++; } } # reference link or image if (strpos($text, '[') !== FALSE and preg_match_all('/(!?)\[(.+?)\](?:\n?[ ]?\[(.*?)\])?/ms', $text, $matches, PREG_SET_ORDER)) { foreach ($matches as $matches) { $link_definition = isset($matches[3]) && $matches[3] ? $matches[3] : $matches[2]; # implicit $link_definition = strtolower($link_definition); if (isset($reference_map[$link_definition])) { $url = $reference_map[$link_definition]; strpos($url, '&') !== FALSE and $url = preg_replace('/&(?!#?\w+;)/', '&amp;', $url); if ($matches[1]) # image { $element = '<img alt="'.$matches[2].'" src="'.$url.'">'; } else # anchor { $element_text = parse_span_elements($matches[2]); $element = '<a href="'.$url.'">'.$element_text.'</a>'; } $code = "\x1A".'$'.$index; $text = str_replace($matches[0], $code, $text); $map[$code] = $element; $index ++; } } } # automatic link if (strpos($text, '<') !== FALSE and preg_match_all('/<((https?|ftp|dict):[^\^\s]+?)>/i', $text, $matches, PREG_SET_ORDER)) { foreach ($matches as $matches) { $url = $matches[1]; strpos($url, '&') !== FALSE and $url = preg_replace('/&(?!#?\w+;)/', '&amp;', $url); $element = '<a href=":href">:text</a>'; $element = str_replace(':text', $url, $element); $element = str_replace(':href', $url, $element); $code = "\x1A".'$'.$index; $text = str_replace($matches[0], $code, $text); $map[$code] = $element; $index ++; } } strpos($text, '&') !== FALSE and $text = preg_replace('/&(?!#?\w+;)/', '&amp;', $text); strpos($text, '<') !== FALSE and $text = preg_replace('/<(?!\/?\w.*?>)/', '&lt;', $text); if (strpos($text, '_') !== FALSE) { $text = preg_replace('/__(?=\S)(.+?)(?<=\S)__(?!_)/s', '<strong>$1</strong>', $text); $text = preg_replace('/_(?=\S)(.+?)(?<=\S)_/s', '<em>$1</em>', $text); } if (strpos($text, '*') !== FALSE) { $text = preg_replace('/\*\*(?=\S)(.+?)(?<=\S)\*\*(?!\*)/s', '<strong>$1</strong>', $text); $text = preg_replace('/\*(?=\S)(.+?)(?<=\S)\*/s', '<em>$1</em>', $text); } $text = strtr($text, $map); return $text; } ?>