diff options
Diffstat (limited to 'library/markdown.php')
| -rw-r--r--[-rwxr-xr-x] | library/markdown.php | 884 |
1 files changed, 387 insertions, 497 deletions
diff --git a/library/markdown.php b/library/markdown.php index 343153186..f548fc26c 100755..100644 --- a/library/markdown.php +++ b/library/markdown.php @@ -3,17 +3,17 @@ # Markdown Extra - A text-to-HTML conversion tool for web writers # # PHP Markdown & Extra -# Copyright (c) 2004-2008 Michel Fortin -# <http://www.michelf.com/projects/php-markdown/> +# Copyright (c) 2004-2012 Michel Fortin +# <http://michelf.com/projects/php-markdown/> # # Original Markdown -# Copyright (c) 2004-2006 John Gruber +# Copyright (c) 2004-2006 John Gruber # <http://daringfireball.net/projects/markdown/> # -define( 'MARKDOWN_VERSION', "1.0.1m" ); # Sat 21 Jun 2008 -define( 'MARKDOWNEXTRA_VERSION', "1.2.3" ); # Wed 31 Dec 2008 +define( 'MARKDOWN_VERSION', "1.0.1o" ); # Sun 8 Jan 2012 +define( 'MARKDOWNEXTRA_VERSION', "1.2.5" ); # Sun 8 Jan 2012 # @@ -34,17 +34,6 @@ define( 'MARKDOWNEXTRA_VERSION', "1.2.3" ); # Wed 31 Dec 2008 @define( 'MARKDOWN_FN_LINK_CLASS', "" ); @define( 'MARKDOWN_FN_BACKLINK_CLASS', "" ); -# Enables special handling for links pointing outside of the current domain. -@define( 'MARKDOWN_EL_ENABLE', true); # Use this feature at all? -@define( 'MARKDOWN_EL_LOCAL_DOMAIN', null); # Leave as null to autodetect -@define( 'MARKDOWN_EL_NEW_WINDOW', true); # Open link in a new browser? -@define( 'MARKDOWN_EL_CSS_CLASS', 'external'); # Leave as null for no class - -# Enables header auto-self-linking. -@define( 'MARKDOWN_HA_ENABLE', true ); # Use this feature at all? -@define( 'MARKDOWN_HA_CLASS', 'hidden-selflink' ); # Leave as null for no class -@define( 'MARKDOWN_HA_TEXT', '←' ); # The text to use as the link - # # WordPress settings: @@ -80,17 +69,17 @@ function Markdown($text) { /* Plugin Name: Markdown Extra -Plugin URI: http://www.michelf.com/projects/php-markdown/ -Description: <a href="http://daringfireball.net/projects/markdown/syntax">Markdown syntax</a> allows you to write using an easy-to-read, easy-to-write plain text format. Based on the original Perl version by <a href="http://daringfireball.net/">John Gruber</a>. <a href="http://www.michelf.com/projects/php-markdown/">More...</a> -Version: 1.2.2 +Plugin URI: http://michelf.com/projects/php-markdown/ +Description: <a href="http://daringfireball.net/projects/markdown/syntax">Markdown syntax</a> allows you to write using an easy-to-read, easy-to-write plain text format. Based on the original Perl version by <a href="http://daringfireball.net/">John Gruber</a>. <a href="http://michelf.com/projects/php-markdown/">More...</a> +Version: 1.2.5 Author: Michel Fortin -Author URI: http://www.michelf.com/ +Author URI: http://michelf.com/ */ if (isset($wp_version)) { # More details about how it works here: - # <http://www.michelf.com/weblog/2005/wordpress-text-flow-vs-markdown/> - + # <http://michelf.com/weblog/2005/wordpress-text-flow-vs-markdown/> + # Post content and excerpts # - Remove WordPress paragraph generator. # - Run Markdown on excerpt, then remove all tags. @@ -105,13 +94,13 @@ if (isset($wp_version)) { add_filter('get_the_excerpt', 'trim', 7); add_filter('the_excerpt', 'mdwp_add_p'); add_filter('the_excerpt_rss', 'mdwp_strip_p'); - + remove_filter('content_save_pre', 'balanceTags', 50); remove_filter('excerpt_save_pre', 'balanceTags', 50); add_filter('the_content', 'balanceTags', 50); add_filter('get_the_excerpt', 'balanceTags', 9); } - + # Add a footnote id prefix to posts when inside a loop. function mdwp_MarkdownPost($text) { static $parser; @@ -126,7 +115,7 @@ if (isset($wp_version)) { } return $parser->transform($text); } - + # Comments # - Remove WordPress paragraph generator. # - Remove WordPress auto-link generator. @@ -141,7 +130,7 @@ if (isset($wp_version)) { add_filter('get_comment_text', 'Markdown', 6); add_filter('get_comment_excerpt', 'Markdown', 6); add_filter('get_comment_excerpt', 'mdwp_strip_p', 7); - + global $mdwp_hidden_tags, $mdwp_placeholders; $mdwp_hidden_tags = explode(' ', '<p> </p> <pre> </pre> <ol> </ol> <ul> </ul> <li> </li>'); @@ -149,7 +138,7 @@ if (isset($wp_version)) { 'pEj07ZbbBZ U1kqgh4w4p pre2zmeN6K QTi31t9pre ol0MP1jzJR '. 'ML5IjmbRol ulANi1NsGY J7zRLJqPul liA8ctl16T K9nhooUHli')); } - + function mdwp_add_p($text) { if (!preg_match('{^$|^<(p|ul|ol|dl|pre|blockquote)>}i', $text)) { $text = '<p>'.$text.'</p>'; @@ -157,7 +146,7 @@ if (isset($wp_version)) { } return $text; } - + function mdwp_strip_p($t) { return preg_replace('{</?p>}i', '', $t); } function mdwp_hide_tags($text) { @@ -182,7 +171,7 @@ function identify_modifier_markdown() { 'authors' => 'Michel Fortin and John Gruber', 'licence' => 'GPL', 'version' => MARKDOWNEXTRA_VERSION, - 'help' => '<a href="http://daringfireball.net/projects/markdown/syntax">Markdown syntax</a> allows you to write using an easy-to-read, easy-to-write plain text format. Based on the original Perl version by <a href="http://daringfireball.net/">John Gruber</a>. <a href="http://www.michelf.com/projects/php-markdown/">More...</a>', + 'help' => '<a href="http://daringfireball.net/projects/markdown/syntax">Markdown syntax</a> allows you to write using an easy-to-read, easy-to-write plain text format. Based on the original Perl version by <a href="http://daringfireball.net/">John Gruber</a>. <a href="http://michelf.com/projects/php-markdown/">More...</a>', ); } @@ -229,7 +218,7 @@ class Markdown_Parser { # Needed to insert a maximum bracked depth while converting to PHP. var $nested_brackets_depth = 6; var $nested_brackets_re; - + var $nested_url_parenthesis_depth = 4; var $nested_url_parenthesis_re; @@ -240,11 +229,11 @@ class Markdown_Parser { # Change to ">" for HTML output. var $empty_element_suffix = MARKDOWN_EMPTY_ELEMENT_SUFFIX; var $tab_width = MARKDOWN_TAB_WIDTH; - + # Change to `true` to disallow markup or entities. var $no_markup = false; var $no_entities = false; - + # Predefined urls and titles for reference links and images. var $predef_urls = array(); var $predef_titles = array(); @@ -256,17 +245,17 @@ class Markdown_Parser { # $this->_initDetab(); $this->prepareItalicsAndBold(); - - $this->nested_brackets_re = + + $this->nested_brackets_re = str_repeat('(?>[^\[\]]+|\[', $this->nested_brackets_depth). str_repeat('\])*', $this->nested_brackets_depth); - - $this->nested_url_parenthesis_re = + + $this->nested_url_parenthesis_re = str_repeat('(?>[^()\s]+|\(', $this->nested_url_parenthesis_depth). str_repeat('(?>\)))*', $this->nested_url_parenthesis_depth); - + $this->escape_chars_re = '['.preg_quote($this->escape_chars).']'; - + # Sort document, block, and span gamut in ascendent priority order. asort($this->document_gamut); asort($this->block_gamut); @@ -278,27 +267,27 @@ class Markdown_Parser { var $urls = array(); var $titles = array(); var $html_hashes = array(); - + # Status flag to avoid invalid nesting. var $in_anchor = false; - - + + function setup() { # - # Called before the transformation process starts to setup parser + # Called before the transformation process starts to setup parser # states. # # Clear global hashes. $this->urls = $this->predef_urls; $this->titles = $this->predef_titles; $this->html_hashes = array(); - + $in_anchor = false; } - + function teardown() { # - # Called after the transformation process to clear any variable + # Called after the transformation process to clear any variable # which may be taking up memory unnecessarly. # $this->urls = array(); @@ -313,7 +302,7 @@ class Markdown_Parser { # and pass it through the document gamut. # $this->setup(); - + # Remove UTF-8 BOM and marker character in input, if present. $text = preg_replace('{^\xEF\xBB\xBF|\x1A}', '', $text); @@ -340,16 +329,16 @@ class Markdown_Parser { foreach ($this->document_gamut as $method => $priority) { $text = $this->$method($text); } - + $this->teardown(); return $text . "\n"; } - + var $document_gamut = array( # Strip link definitions, store in hashes. "stripLinkDefinitions" => 20, - + "runBasicBlockGamut" => 30, ); @@ -367,14 +356,18 @@ class Markdown_Parser { [ ]* \n? # maybe *one* newline [ ]* - <?(\S+?)>? # url = $2 + (?: + <(.+?)> # url = $2 + | + (\S+?) # url = $3 + ) [ ]* \n? # maybe one newline [ ]* (?: (?<=\s) # lookbehind for whitespace ["(] - (.*?) # title = $3 + (.*?) # title = $4 [")] [ ]* )? # title is optional @@ -386,8 +379,9 @@ class Markdown_Parser { } function _stripLinkDefinitions_callback($matches) { $link_id = strtolower($matches[1]); - $this->urls[$link_id] = $matches[2]; - $this->titles[$link_id] =& $matches[3]; + $url = $matches[2] == '' ? $matches[3] : $matches[2]; + $this->urls[$link_id] = $url; + $this->titles[$link_id] =& $matches[4]; return ''; # String that will replace the block } @@ -405,14 +399,14 @@ class Markdown_Parser { # hard-coded: # # * List "a" is made of tags which can be both inline or block-level. - # These will be treated block-level when the start tag is alone on - # its line, otherwise they're not matched here and will be taken as + # These will be treated block-level when the start tag is alone on + # its line, otherwise they're not matched here and will be taken as # inline later. # * List "b" is made of tags which are always block-level; # $block_tags_a_re = 'ins|del'; $block_tags_b_re = 'p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|address|'. - 'script|noscript|form|fieldset|iframe|math|textarea'; + 'script|noscript|form|fieldset|iframe|math'; # Regular expression for the content of a block tag. $nested_tags_level = 4; @@ -428,7 +422,7 @@ class Markdown_Parser { | \'[^\']*\' # text inside single quotes (tolerate ">") )* - )? + )? '; $content = str_repeat(' @@ -445,7 +439,7 @@ class Markdown_Parser { str_repeat(' </\2\s*> # closing nested tag ) - | + | <(?!/\2\s*> # other tags with a different name ) )*', @@ -471,9 +465,9 @@ class Markdown_Parser { ) ( # save in $1 - # Match from `\n<tag>` to `</tag>\n`, handling nested tags + # Match from `\n<tag>` to `</tag>\n`, handling nested tags # in between. - + [ ]{0,'.$less_than_tab.'} <('.$block_tags_b_re.')# start tag = $2 '.$attr.'> # attributes followed by > and \n @@ -491,28 +485,28 @@ class Markdown_Parser { </\3> # the matching end tag [ ]* # trailing spaces/tabs (?=\n+|\Z) # followed by a newline or end of document - - | # Special case just for <hr />. It was easier to make a special + + | # Special case just for <hr />. It was easier to make a special # case than to make the other regex more complicated. - + [ ]{0,'.$less_than_tab.'} <(hr) # start tag = $2 '.$attr.' # attributes /?> # the matching end tag [ ]* (?=\n{2,}|\Z) # followed by a blank line or end of document - + | # Special case for standalone HTML comments: - + [ ]{0,'.$less_than_tab.'} (?s: <!-- .*? --> ) [ ]* (?=\n{2,}|\Z) # followed by a blank line or end of document - + | # PHP and ASP-style processor instructions (<? and <%) - + [ ]{0,'.$less_than_tab.'} (?s: <([?%]) # $2 @@ -521,7 +515,7 @@ class Markdown_Parser { ) [ ]* (?=\n{2,}|\Z) # followed by a blank line or end of document - + ) )}Sxmi', array(&$this, '_hashHTMLBlocks_callback'), @@ -534,11 +528,11 @@ class Markdown_Parser { $key = $this->hashBlock($text); return "\n\n$key\n\n"; } - - + + function hashPart($text, $boundary = 'X') { # - # Called whenever a tag must be hashed when a function insert an atomic + # Called whenever a tag must be hashed when a function insert an atomic # element in the text stream. Passing $text to through this function gives # a unique text-token which will be reverted back when calling unhash. # @@ -550,7 +544,7 @@ class Markdown_Parser { # Swap back any tag hash found in $text so we do not have to `unhash` # multiple times at the end. $text = $this->unhash($text); - + # Then hash the block. static $i = 0; $key = "$boundary\x1A" . ++$i . $boundary; @@ -574,7 +568,7 @@ class Markdown_Parser { # "doHeaders" => 10, "doHorizontalRules" => 20, - + "doLists" => 40, "doCodeBlocks" => 50, "doBlockQuotes" => 60, @@ -584,33 +578,33 @@ class Markdown_Parser { # # Run block gamut tranformations. # - # We need to escape raw HTML in Markdown source before doing anything - # else. This need to be done for each block, and not only at the + # We need to escape raw HTML in Markdown source before doing anything + # else. This need to be done for each block, and not only at the # begining in the Markdown function since hashed blocks can be part of - # list items and could have been indented. Indented blocks would have + # list items and could have been indented. Indented blocks would have # been seen as a code block in a previous pass of hashHTMLBlocks. $text = $this->hashHTMLBlocks($text); - + return $this->runBasicBlockGamut($text); } - + function runBasicBlockGamut($text) { # - # Run block gamut tranformations, without hashing HTML blocks. This is + # Run block gamut tranformations, without hashing HTML blocks. This is # useful when HTML blocks are known to be already hashed, like in the first # whole-document pass. # foreach ($this->block_gamut as $method => $priority) { $text = $this->$method($text); } - + # Finally form paragraph and restore hashed blocks. $text = $this->formParagraphs($text); return $text; } - - + + function doHorizontalRules($text) { # Do Horizontal Rules: return preg_replace( @@ -624,7 +618,7 @@ class Markdown_Parser { [ ]* # Tailing spaces $ # End of line. }mx', - "\n".$this->hashBlock("<hr$this->empty_element_suffix")."\n", + "\n".$this->hashBlock("<hr$this->empty_element_suffix")."\n", $text); } @@ -642,7 +636,7 @@ class Markdown_Parser { # because ![foo][f] looks like an anchor. "doImages" => 10, "doAnchors" => 20, - + # Make links out of things like `<http://example.com/>` # Must come after doAnchors, because you can use < and > # delimiters in inline links like [this](<url>). @@ -663,11 +657,11 @@ class Markdown_Parser { return $text; } - - + + function doHardBreaks($text) { # Do hard breaks: - return preg_replace_callback('/ {2,}\n/', + return preg_replace_callback('/ {2,}\n/', array(&$this, '_doHardBreaks_callback'), $text); } function _doHardBreaks_callback($matches) { @@ -681,7 +675,7 @@ class Markdown_Parser { # if ($this->in_anchor) return $text; $this->in_anchor = true; - + # # First, handle reference-style links: [link text] [id] # @@ -710,37 +704,37 @@ class Markdown_Parser { ('.$this->nested_brackets_re.') # link text = $2 \] \( # literal paren - [ ]* + [ \n]* (?: - <(\S*)> # href = $3 + <(.+?)> # href = $3 | ('.$this->nested_url_parenthesis_re.') # href = $4 ) - [ ]* + [ \n]* ( # $5 ([\'"]) # quote char = $6 (.*?) # Title = $7 \6 # matching quote - [ ]* # ignore any spaces/tabs between closing quote and ) + [ \n]* # ignore any spaces/tabs between closing quote and ) )? # title is optional \) ) }xs', - array(&$this, '_DoAnchors_inline_callback'), $text); + array(&$this, '_doAnchors_inline_callback'), $text); # # Last, handle reference-style shortcuts: [link text] - # These must come last in case you've also got [link test][1] - # or [link test](/foo) + # These must come last in case you've also got [link text][1] + # or [link text](/foo) # -// $text = preg_replace_callback('{ -// ( # wrap whole match in $1 -// \[ -// ([^\[\]]+) # link text = $2; can\'t contain [ or ] -// \] -// ) -// }xs', -// array(&$this, '_doAnchors_reference_callback'), $text); + $text = preg_replace_callback('{ + ( # wrap whole match in $1 + \[ + ([^\[\]]+) # link text = $2; can\'t contain [ or ] + \] + ) + }xs', + array(&$this, '_doAnchors_reference_callback'), $text); $this->in_anchor = false; return $text; @@ -754,7 +748,7 @@ class Markdown_Parser { # for shortcut links like [this][] or [this]. $link_id = $link_text; } - + # lower-case and turn embedded newlines into spaces $link_id = strtolower($link_id); $link_id = preg_replace('{[ ]?\n}', ' ', $link_id); @@ -762,14 +756,14 @@ class Markdown_Parser { if (isset($this->urls[$link_id])) { $url = $this->urls[$link_id]; $url = $this->encodeAttribute($url); - + $result = "<a href=\"$url\""; if ( isset( $this->titles[$link_id] ) ) { $title = $this->titles[$link_id]; $title = $this->encodeAttribute($title); $result .= " title=\"$title\""; } - + $link_text = $this->runSpanGamut($link_text); $result .= ">$link_text</a>"; $result = $this->hashPart($result); @@ -792,7 +786,7 @@ class Markdown_Parser { $title = $this->encodeAttribute($title); $result .= " title=\"$title\""; } - + $link_text = $this->runSpanGamut($link_text); $result .= ">$link_text</a>"; @@ -821,7 +815,7 @@ class Markdown_Parser { \] ) - }xs', + }xs', array(&$this, '_doImages_reference_callback'), $text); # @@ -835,18 +829,18 @@ class Markdown_Parser { \] \s? # One optional whitespace character \( # literal paren - [ ]* + [ \n]* (?: <(\S*)> # src url = $3 | ('.$this->nested_url_parenthesis_re.') # src url = $4 ) - [ ]* + [ \n]* ( # $5 ([\'"]) # quote char = $6 (.*?) # title = $7 \6 # matching quote - [ ]* + [ \n]* )? # title is optional \) ) @@ -906,7 +900,7 @@ class Markdown_Parser { # Setext-style headers: # Header 1 # ======== - # + # # Header 2 # -------- # @@ -936,7 +930,7 @@ class Markdown_Parser { # Terrible hack to check we haven't found an empty list item. if ($matches[2] == '-' && preg_match('{^-(?: |$)}', $matches[1])) return $matches[0]; - + $level = $matches[2]{0} == '=' ? 1 : 2; $block = "<h$level>".$this->runSpanGamut($matches[1])."</h$level>"; return "\n" . $this->hashBlock($block) . "\n\n"; @@ -956,22 +950,25 @@ class Markdown_Parser { # Re-usable patterns to match list item bullets and number markers: $marker_ul_re = '[*+-]'; - $marker_ol_re = '\d+[.]'; + $marker_ol_re = '\d+[\.]'; $marker_any_re = "(?:$marker_ul_re|$marker_ol_re)"; - $markers_relist = array($marker_ul_re, $marker_ol_re); + $markers_relist = array( + $marker_ul_re => $marker_ol_re, + $marker_ol_re => $marker_ul_re, + ); - foreach ($markers_relist as $marker_re) { + foreach ($markers_relist as $marker_re => $other_marker_re) { # Re-usable pattern to match any entirel ul or ol list: $whole_list_re = ' ( # $1 = whole list ( # $2 - [ ]{0,'.$less_than_tab.'} - ('.$marker_re.') # $3 = first list item marker + ([ ]{0,'.$less_than_tab.'}) # $3 = number of spaces + ('.$marker_re.') # $4 = first list item marker [ ]+ ) (?s:.+?) - ( # $4 + ( # $5 \z | \n{2,} @@ -980,13 +977,19 @@ class Markdown_Parser { [ ]* '.$marker_re.'[ ]+ ) + | + (?= # Lookahead for another kind of list + \n + \3 # Must have the same indentation + '.$other_marker_re.'[ ]+ + ) ) ) '; // mx - + # We use a different prefix before nested lists than top-level lists. # See extended comment in _ProcessListItems(). - + if ($this->list_level) { $text = preg_replace_callback('{ ^ @@ -1008,17 +1011,17 @@ class Markdown_Parser { function _doLists_callback($matches) { # Re-usable patterns to match list item bullets and number markers: $marker_ul_re = '[*+-]'; - $marker_ol_re = '\d+[.]'; + $marker_ol_re = '\d+[\.]'; $marker_any_re = "(?:$marker_ul_re|$marker_ol_re)"; - + $list = $matches[1]; - $list_type = preg_match("/$marker_ul_re/", $matches[3]) ? "ul" : "ol"; - + $list_type = preg_match("/$marker_ul_re/", $matches[4]) ? "ul" : "ol"; + $marker_any_re = ( $list_type == "ul" ? $marker_ul_re : $marker_ol_re ); - + $list .= "\n"; $result = $this->processListItems($list, $marker_any_re); - + $result = $this->hashBlock("<$list_type>\n" . $result . "</$list_type>"); return "\n". $result ."\n\n"; } @@ -1050,7 +1053,7 @@ class Markdown_Parser { # without resorting to mind-reading. Perhaps the solution is to # change the syntax rules such that sub-lists must start with a # starting cardinal number; e.g. "1." or "a.". - + $this->list_level++; # trim trailing blank lines: @@ -1078,7 +1081,7 @@ class Markdown_Parser { $marker_space = $matches[3]; $tailing_blank_line =& $matches[5]; - if ($leading_line || $tailing_blank_line || + if ($leading_line || $tailing_blank_line || preg_match('/\n{2,}/', $item)) { # Replace marker with the appropriate whitespace indentation @@ -1138,25 +1141,25 @@ class Markdown_Parser { var $em_relist = array( - '' => '(?:(?<!\*)\*(?!\*)|(?<!_)_(?!_))(?=\S)(?![.,:;]\s)', - '*' => '(?<=\S)(?<!\*)\*(?!\*)', - '_' => '(?<=\S)(?<!_)_(?!_)', + '' => '(?:(?<!\*)\*(?!\*)|(?<!_)_(?!_))(?=\S|$)(?![\.,:;]\s)', + '*' => '(?<=\S|^)(?<!\*)\*(?!\*)', + '_' => '(?<=\S|^)(?<!_)_(?!_)', ); var $strong_relist = array( - '' => '(?:(?<!\*)\*\*(?!\*)|(?<!_)__(?!_))(?=\S)(?![.,:;]\s)', - '**' => '(?<=\S)(?<!\*)\*\*(?!\*)', - '__' => '(?<=\S)(?<!_)__(?!_)', + '' => '(?:(?<!\*)\*\*(?!\*)|(?<!_)__(?!_))(?=\S|$)(?![\.,:;]\s)', + '**' => '(?<=\S|^)(?<!\*)\*\*(?!\*)', + '__' => '(?<=\S|^)(?<!_)__(?!_)', ); var $em_strong_relist = array( - '' => '(?:(?<!\*)\*\*\*(?!\*)|(?<!_)___(?!_))(?=\S)(?![.,:;]\s)', - '***' => '(?<=\S)(?<!\*)\*\*\*(?!\*)', - '___' => '(?<=\S)(?<!_)___(?!_)', + '' => '(?:(?<!\*)\*\*\*(?!\*)|(?<!_)___(?!_))(?=\S|$)(?![\.,:;]\s)', + '***' => '(?<=\S|^)(?<!\*)\*\*\*(?!\*)', + '___' => '(?<=\S|^)(?<!_)___(?!_)', ); var $em_strong_prepared_relist; - + function prepareItalicsAndBold() { # - # Prepare regular expressions for seraching emphasis tokens in any + # Prepare regular expressions for searching emphasis tokens in any # context. # foreach ($this->em_relist as $em => $em_re) { @@ -1168,37 +1171,37 @@ class Markdown_Parser { } $token_relist[] = $em_re; $token_relist[] = $strong_re; - + # Construct master expression from list. $token_re = '{('. implode('|', $token_relist) .')}'; $this->em_strong_prepared_relist["$em$strong"] = $token_re; } } } - + function doItalicsAndBold($text) { $token_stack = array(''); $text_stack = array(''); $em = ''; $strong = ''; $tree_char_em = false; - + while (1) { # # Get prepared regular expression for seraching emphasis tokens # in current context. # $token_re = $this->em_strong_prepared_relist["$em$strong"]; - + # - # Each loop iteration seach for the next emphasis token. + # Each loop iteration search for the next emphasis token. # Each token is then passed to handleSpanToken. # $parts = preg_split($token_re, $text, 2, PREG_SPLIT_DELIM_CAPTURE); $text_stack[0] .= $parts[0]; $token =& $parts[1]; $text =& $parts[2]; - + if (empty($token)) { # Reached end of text span: empty stack without emitting. # any more emphasis. @@ -1208,7 +1211,7 @@ class Markdown_Parser { } break; } - + $token_len = strlen($token); if ($tree_char_em) { # Reached closing marker while inside a three-char emphasis. @@ -1247,7 +1250,7 @@ class Markdown_Parser { $$tag = ''; # $$tag stands for $em or $strong } } else { - # Reached opening three-char emphasis marker. Push on token + # Reached opening three-char emphasis marker. Push on token # stack; will be handled by the special condition above. $em = $token{0}; $strong = "$em$em"; @@ -1321,10 +1324,10 @@ class Markdown_Parser { $bq = $this->runBlockGamut($bq); # recurse $bq = preg_replace('/^/m', " ", $bq); - # These leading spaces cause problem with <pre> content, + # These leading spaces cause problem with <pre> content, # so we need to fix that: - $bq = preg_replace_callback('{(\s*<pre>.+?</pre>)}sx', - array(&$this, '_DoBlockQuotes_callback2'), $bq); + $bq = preg_replace_callback('{(\s*<pre>.+?</pre>)}sx', + array(&$this, '_doBlockQuotes_callback2'), $bq); return "\n". $this->hashBlock("<blockquote>\n$bq\n</blockquote>")."\n\n"; } @@ -1386,7 +1389,7 @@ class Markdown_Parser { // # We can't call Markdown(), because that resets the hash; // # that initialization code should be pulled into its own sub, though. // $div_content = $this->hashHTMLBlocks($div_content); -// +// // # Run document gamut methods on the content. // foreach ($this->document_gamut as $method => $priority) { // $div_content = $this->$method($div_content); @@ -1414,11 +1417,11 @@ class Markdown_Parser { $text = str_replace('"', '"', $text); return $text; } - - + + function encodeAmpsAndAngles($text) { # - # Smart processing for ampersands and angle brackets that need to + # Smart processing for ampersands and angle brackets that need to # be encoded. Valid character entities are left alone unless the # no-entities mode is set. # @@ -1427,7 +1430,7 @@ class Markdown_Parser { } else { # Ampersand-encoding based entirely on Nat Irons's Amputator # MT plugin: <http://bumppo.net/projects/amputator/> - $text = preg_replace('/&(?!#?[xX]?(?:[0-9a-fA-F]+|\w+);)/', + $text = preg_replace('/&(?!#?[xX]?(?:[0-9a-fA-F]+|\w+);)/', '&', $text);; } # Encode remaining <'s @@ -1438,7 +1441,7 @@ class Markdown_Parser { function doAutoLinks($text) { - $text = preg_replace_callback('{<((https?|ftp|dict):[^\'">\s]+)>}i', + $text = preg_replace_callback('{<((https?|ftp|dict):[^\'">\s]+)>}i', array(&$this, '_doAutoLinks_url_callback'), $text); # Email addresses: <address@domain.foo> @@ -1446,9 +1449,17 @@ class Markdown_Parser { < (?:mailto:)? ( - [-.\w\x80-\xFF]+ + (?: + [-!#$%&\'*+/=?^_`.{|}~\w\x80-\xFF]+ + | + ".*?" + ) \@ - [-a-z0-9\x80-\xFF]+(\.[-a-z0-9\x80-\xFF]+)*\.[a-z]+ + (?: + [-a-z0-9\x80-\xFF]+(\.[-a-z0-9\x80-\xFF]+)*\.[a-z]+ + | + \[[\d.a-fA-F:]+\] # IPv4 & IPv6 + ) ) > }xi', @@ -1487,7 +1498,7 @@ class Markdown_Parser { $addr = "mailto:" . $addr; $chars = preg_split('/(?<!^)(?!$)/', $addr); $seed = (int)abs(crc32($addr) / strlen($addr)); # Deterministic seed. - + foreach ($chars as $key => $char) { $ord = ord($char); # Ignore non-ascii chars. @@ -1500,7 +1511,7 @@ class Markdown_Parser { else $chars[$key] = '&#'.$ord.';'; } } - + $addr = implode('', $chars); $text = implode('', array_slice($chars, 7)); # text without `mailto:` $addr = "<a href=\"$addr\">$text</a>"; @@ -1515,7 +1526,7 @@ class Markdown_Parser { # escaped characters and handling code spans. # $output = ''; - + $span_re = '{ ( \\\\'.$this->escape_chars_re.' @@ -1540,17 +1551,17 @@ class Markdown_Parser { while (1) { # - # Each loop iteration seach for either the next tag, the next - # openning code span marker, or the next escaped character. + # Each loop iteration seach for either the next tag, the next + # openning code span marker, or the next escaped character. # Each token is then passed to handleSpanToken. # $parts = preg_split($span_re, $str, 2, PREG_SPLIT_DELIM_CAPTURE); - + # Create token from text preceding tag. if ($parts[0] != "") { $output .= $parts[0]; } - + # Check if we reach the end. if (isset($parts[1])) { $output .= $this->handleSpanToken($parts[1], $parts[2]); @@ -1560,14 +1571,14 @@ class Markdown_Parser { break; } } - + return $output; } - - + + function handleSpanToken($token, &$str) { # - # Handle $token provided by parseSpan by determining its nature and + # Handle $token provided by parseSpan by determining its nature and # returning the corresponding value that should replace it. # switch ($token{0}) { @@ -1575,7 +1586,7 @@ class Markdown_Parser { return $this->hashPart("&#". ord($token{1}). ";"); case "`": # Search for end marker in remaining text. - if (preg_match('/^(.*?[^`])'.preg_quote($token).'(?!`)(.*)$/sm', + if (preg_match('/^(.*?[^`])'.preg_quote($token).'(?!`)(.*)$/sm', $str, $matches)) { $str = $matches[2]; @@ -1597,18 +1608,18 @@ class Markdown_Parser { } - # String length function for detab. `_initDetab` will create a function to + # String length function for detab. `_initDetab` will create a function to # hanlde UTF-8 if the default function does not exist. var $utf8_strlen = 'mb_strlen'; - + function detab($text) { # # Replace tabs with the appropriate amount of space. # # For each line we separate the line in blocks delemited by - # tab characters. Then we reconstruct every line by adding the + # tab characters. Then we reconstruct every line by adding the # appropriate number of space between each blocks. - + $text = preg_replace_callback('/^.*\t.*$/m', array(&$this, '_detab_callback'), $text); @@ -1617,7 +1628,7 @@ class Markdown_Parser { function _detab_callback($matches) { $line = $matches[0]; $strlen = $this->utf8_strlen; # strlen function for UTF-8. - + # Split in blocks. $blocks = explode("\t", $line); # Add each blocks to the line. @@ -1625,7 +1636,7 @@ class Markdown_Parser { unset($blocks[0]); # Do not add first block twice. foreach ($blocks as $block) { # Calculate amount of space, insert spaces, insert block. - $amount = $this->tab_width - + $amount = $this->tab_width - $strlen($line, 'UTF-8') % $this->tab_width; $line .= str_repeat(" ", $amount) . $block; } @@ -1634,13 +1645,13 @@ class Markdown_Parser { function _initDetab() { # # Check for the availability of the function in the `utf8_strlen` property - # (initially `mb_strlen`). If the function is not available, create a + # (initially `mb_strlen`). If the function is not available, create a # function that will loosely count the number of UTF-8 characters with a # regular expression. # if (function_exists($this->utf8_strlen)) return; $this->utf8_strlen = create_function('$text', 'return preg_match_all( - "/[\\\\x00-\\\\xBF]|[\\\\xC0-\\\\xFF][\\\\x80-\\\\xBF]*/", + "/[\\\\x00-\\\\xBF]|[\\\\xC0-\\\\xFF][\\\\x80-\\\\xBF]*/", $text, $m);'); } @@ -1649,7 +1660,7 @@ class Markdown_Parser { # # Swap back in all the tags hashed by _HashHTMLBlocks. # - return preg_replace_callback('/(.)\x1A[0-9]+\1/', + return preg_replace_callback('/(.)\x1A[0-9]+\1/', array(&$this, '_unhash_callback'), $text); } function _unhash_callback($matches) { @@ -1667,24 +1678,15 @@ class MarkdownExtra_Parser extends Markdown_Parser { # Prefix for footnote ids. var $fn_id_prefix = ""; - + # Optional title attribute for footnote links and backlinks. var $fn_link_title = MARKDOWN_FN_LINK_TITLE; var $fn_backlink_title = MARKDOWN_FN_BACKLINK_TITLE; - + # Optional class attribute for footnote links and backlinks. var $fn_link_class = MARKDOWN_FN_LINK_CLASS; var $fn_backlink_class = MARKDOWN_FN_BACKLINK_CLASS; - - var $el_enable = MARKDOWN_EL_ENABLE; - var $el_local_domain = MARKDOWN_EL_LOCAL_DOMAIN; - var $el_new_window = MARKDOWN_EL_NEW_WINDOW; - var $el_css_class = MARKDOWN_EL_CSS_CLASS; - - var $ha_enable = MARKDOWN_HA_ENABLE; - var $ha_class = MARKDOWN_HA_CLASS; - var $ha_text = MARKDOWN_HA_TEXT; - + # Predefined abbreviations. var $predef_abbr = array(); @@ -1693,15 +1695,11 @@ class MarkdownExtra_Parser extends Markdown_Parser { # # Constructor function. Initialize the parser object. # - # Add extra escapable characters before parent constructor + # Add extra escapable characters before parent constructor # initialize the table. $this->escape_chars .= ':|'; - - if ($this->el_local_domain === null) { - $this->el_local_domain = $_SERVER['SERVER_NAME']; - } - - # Insert extra document, block, and span transformations. + + # Insert extra document, block, and span transformations. # Parent constructor will do the sorting. $this->document_gamut += array( "doFencedCodeBlocks" => 5, @@ -1718,33 +1716,33 @@ class MarkdownExtra_Parser extends Markdown_Parser { "doFootnotes" => 5, "doAbbreviations" => 70, ); - + parent::Markdown_Parser(); } - - + + # Extra variables used during extra transformations. var $footnotes = array(); var $footnotes_ordered = array(); var $abbr_desciptions = array(); var $abbr_word_re = ''; - + # Give the current footnote number. var $footnote_counter = 1; - - + + function setup() { # # Setting up Extra-specific variables. # parent::setup(); - + $this->footnotes = array(); $this->footnotes_ordered = array(); $this->abbr_desciptions = array(); $this->abbr_word_re = ''; $this->footnote_counter = 1; - + foreach ($this->predef_abbr as $abbr_word => $abbr_desc) { if ($this->abbr_word_re) $this->abbr_word_re .= '|'; @@ -1752,7 +1750,7 @@ class MarkdownExtra_Parser extends Markdown_Parser { $this->abbr_desciptions[$abbr_word] = trim($abbr_desc); } } - + function teardown() { # # Clearing Extra-specific variables. @@ -1761,29 +1759,29 @@ class MarkdownExtra_Parser extends Markdown_Parser { $this->footnotes_ordered = array(); $this->abbr_desciptions = array(); $this->abbr_word_re = ''; - + parent::teardown(); } - - + + ### HTML Block Parser ### - + # Tags that are always treated as block tags: var $block_tags_re = 'p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|address|form|fieldset|iframe|hr|legend'; - + # Tags treated as block tags only if the opening tag is alone on it's line: var $context_block_tags_re = 'script|noscript|math|ins|del'; - + # Tags where markdown="1" default to span mode: var $contain_span_tags_re = 'p|h[1-6]|li|dd|dt|td|th|legend|address'; - - # Tags which must not have their contents modified, no matter where + + # Tags which must not have their contents modified, no matter where # they appear: var $clean_tags_re = 'script|math'; - + # Tags that do not need to be closed. var $auto_close_tags_re = 'hr|img'; - + function hashHTMLBlocks($text) { # @@ -1796,7 +1794,7 @@ class MarkdownExtra_Parser extends Markdown_Parser { # hard-coded. # # This works by calling _HashHTMLBlocks_InMarkdown, which then calls - # _HashHTMLBlocks_InHTML when it encounter block tags. When the markdown="1" + # _HashHTMLBlocks_InHTML when it encounter block tags. When the markdown="1" # attribute is found whitin a tag, _HashHTMLBlocks_InHTML calls back # _HashHTMLBlocks_InMarkdown to handle the Markdown syntax within the tag. # These two functions are calling each other. It's recursive! @@ -1805,17 +1803,17 @@ class MarkdownExtra_Parser extends Markdown_Parser { # Call the HTML-in-Markdown hasher. # list($text, ) = $this->_hashHTMLBlocks_inMarkdown($text); - + return $text; } - function _hashHTMLBlocks_inMarkdown($text, $indent = 0, + function _hashHTMLBlocks_inMarkdown($text, $indent = 0, $enclosing_tag_re = '', $span = false) { # # Parse markdown text, calling _HashHTMLBlocks_InHTML for block tags. # - # * $indent is the number of space to be ignored when checking for code - # blocks. This is important because if we don't take the indent into + # * $indent is the number of space to be ignored when checking for code + # blocks. This is important because if we don't take the indent into # account, something like this (which looks right) won't work as expected: # # <div> @@ -1827,11 +1825,11 @@ class MarkdownExtra_Parser extends Markdown_Parser { # If you don't like this, just don't indent the tag on which # you apply the markdown="1" attribute. # - # * If $enclosing_tag_re is not empty, stops at the first unmatched closing + # * If $enclosing_tag_re is not empty, stops at the first unmatched closing # tag with that name. Nested tags supported. # - # * If $span is true, text inside must treated as span. So any double - # newline will be replaced by a single newline so that it does not create + # * If $span is true, text inside must treated as span. So any double + # newline will be replaced by a single newline so that it does not create # paragraphs. # # Returns an array of that form: ( processed text , remaining text ) @@ -1840,13 +1838,13 @@ class MarkdownExtra_Parser extends Markdown_Parser { # Regex to check for the presense of newlines around a block tag. $newline_before_re = '/(?:^\n?|\n\n)*$/'; - $newline_after_re = + $newline_after_re = '{ ^ # Start of text following the tag. (?>[ ]*<!--.*?-->)? # Optional comment. [ ]*\n # Must be followed by newline. }xs'; - + # Regex to match any tag. $block_tag_re = '{ @@ -1879,7 +1877,7 @@ class MarkdownExtra_Parser extends Markdown_Parser { '. ( !$span ? ' # If not in span. | # Indented code block - (?> ^[ ]*\n? | \n[ ]*\n ) + (?: ^[ ]*\n | ^ | \n[ ]*\n ) [ ]{'.($indent+4).'}[^\n]* \n (?> (?: [ ]{'.($indent+4).'}[^\n]* | [ ]* ) \n @@ -1887,12 +1885,12 @@ class MarkdownExtra_Parser extends Markdown_Parser { | # Fenced code block marker (?> ^ | \n ) - [ ]{'.($indent).'}~~~+[ ]*\n + [ ]{0,'.($indent).'}~~~+[ ]*\n ' : '' ). ' # End (if not is span). ) }xs'; - + $depth = 0; # Current depth inside the tag tree. $parsed = ""; # Parsed text that will be returned. @@ -1904,32 +1902,32 @@ class MarkdownExtra_Parser extends Markdown_Parser { # # Split the text using the first $tag_match pattern found. # Text before pattern will be first in the array, text after - # pattern will be at the end, and between will be any catches made + # pattern will be at the end, and between will be any catches made # by the pattern. # - $parts = preg_split($block_tag_re, $text, 2, + $parts = preg_split($block_tag_re, $text, 2, PREG_SPLIT_DELIM_CAPTURE); - - # If in Markdown span mode, add a empty-string span-level hash + + # If in Markdown span mode, add a empty-string span-level hash # after each newline to prevent triggering any block element. if ($span) { $void = $this->hashPart("", ':'); $newline = "$void\n"; $parts[0] = $void . str_replace("\n", $newline, $parts[0]) . $void; } - + $parsed .= $parts[0]; # Text before current tag. - + # If end of $text has been reached. Stop loop. if (count($parts) < 3) { $text = ""; break; } - + $tag = $parts[1]; # Tag to handle. $text = $parts[2]; # Remaining text after current tag. $tag_re = preg_quote($tag); # For use in a regular expression. - + # # Check for: Code span marker # @@ -1949,33 +1947,34 @@ class MarkdownExtra_Parser extends Markdown_Parser { } } # - # Check for: Indented code block or fenced code block marker. + # Check for: Fenced code block marker. # - else if ($tag{0} == "\n" || $tag{0} == "~") { - if ($tag{1} == "\n" || $tag{1} == " ") { - # Indented code block: pass it unchanged, will be handled - # later. - $parsed .= $tag; + else if (preg_match('{^\n?[ ]{0,'.($indent+3).'}~}', $tag)) { + # Fenced code block marker: find matching end marker. + $tag_re = preg_quote(trim($tag)); + if (preg_match('{^(?>.*\n)+?[ ]{0,'.($indent).'}'.$tag_re.'[ ]*\n}', $text, + $matches)) + { + # End marker found: pass text unchanged until marker. + $parsed .= $tag . $matches[0]; + $text = substr($text, strlen($matches[0])); } else { - # Fenced code block marker: find matching end marker. - $tag_re = preg_quote(trim($tag)); - if (preg_match('{^(?>.*\n)+?'.$tag_re.' *\n}', $text, - $matches)) - { - # End marker found: pass text unchanged until marker. - $parsed .= $tag . $matches[0]; - $text = substr($text, strlen($matches[0])); - } - else { - # No end marker: just skip it. - $parsed .= $tag; - } + # No end marker: just skip it. + $parsed .= $tag; } } # + # Check for: Indented code block. + # + else if ($tag{0} == "\n" || $tag{0} == " ") { + # Indented code block: pass it unchanged, will be handled + # later. + $parsed .= $tag; + } + # # Check for: Opening Block level tag or - # Opening Context Block tag (like ins and del) + # Opening Context Block tag (like ins and del) # used as a block tag (tag is alone on it's line). # else if (preg_match('{^<(?:'.$this->block_tags_re.')\b}', $tag) || @@ -1985,9 +1984,9 @@ class MarkdownExtra_Parser extends Markdown_Parser { ) { # Need to parse tag and following text using the HTML parser. - list($block_text, $text) = + list($block_text, $text) = $this->_hashHTMLBlocks_inHTML($tag . $text, "hashBlock", true); - + # Make sure it stays outside of any paragraph by adding newlines. $parsed .= "\n\n$block_text\n\n"; } @@ -2000,9 +1999,9 @@ class MarkdownExtra_Parser extends Markdown_Parser { { # Need to parse tag and following text using the HTML parser. # (don't check for markdown attribute) - list($block_text, $text) = + list($block_text, $text) = $this->_hashHTMLBlocks_inHTML($tag . $text, "hashClean", false); - + $parsed .= $block_text; } # @@ -2026,14 +2025,14 @@ class MarkdownExtra_Parser extends Markdown_Parser { $text = $tag . $text; break; } - + $parsed .= $tag; } else { $parsed .= $tag; } } while ($depth >= 0); - + return array($parsed, $text); } function _hashHTMLBlocks_inHTML($text, $hash_method, $md_attr) { @@ -2048,7 +2047,7 @@ class MarkdownExtra_Parser extends Markdown_Parser { # Returns an array of that form: ( processed text , remaining text ) # if ($text === '') return array('', ''); - + # Regex to match `markdown` attribute inside of a tag. $markdown_attr_re = ' { @@ -2056,15 +2055,15 @@ class MarkdownExtra_Parser extends Markdown_Parser { markdown \s*=\s* (?> - (["\']) # $1: quote delimiter + (["\']) # $1: quote delimiter (.*?) # $2: attribute value - \1 # matching delimiter + \1 # matching delimiter | ([^\s>]*) # $3: unquoted attribute value ) () # $4: make $3 always defined (avoid warnings) }xs'; - + # Regex to match any tag. $tag_re = '{ ( # $2: Capture hole tag. @@ -2087,9 +2086,9 @@ class MarkdownExtra_Parser extends Markdown_Parser { <!\[CDATA\[.*?\]\]> # CData Block ) }xs'; - + $original_text = $text; # Save original text in case of faliure. - + $depth = 0; # Current depth inside the tag tree. $block_text = ""; # Temporary text holder for current text. $parsed = ""; # Parsed text that will be returned. @@ -2108,25 +2107,25 @@ class MarkdownExtra_Parser extends Markdown_Parser { # # Split the text using the first $tag_match pattern found. # Text before pattern will be first in the array, text after - # pattern will be at the end, and between will be any catches made + # pattern will be at the end, and between will be any catches made # by the pattern. # $parts = preg_split($tag_re, $text, 2, PREG_SPLIT_DELIM_CAPTURE); - + if (count($parts) < 3) { # # End of $text reached with unbalenced tag(s). # In that case, we return original text unchanged and pass the - # first character as filtered to prevent an infinite loop in the + # first character as filtered to prevent an infinite loop in the # parent function. # return array($original_text{0}, substr($original_text, 1)); } - + $block_text .= $parts[0]; # Text before current tag. $tag = $parts[1]; # Tag to handle. $text = $parts[2]; # Remaining text after current tag. - + # # Check for: Auto-close tag (like <hr/>) # Comments and Processing Instructions. @@ -2146,22 +2145,22 @@ class MarkdownExtra_Parser extends Markdown_Parser { if ($tag{1} == '/') $depth--; else if ($tag{strlen($tag)-2} != '/') $depth++; } - + # # Check for `markdown="1"` attribute and handle it. # - if ($md_attr && + if ($md_attr && preg_match($markdown_attr_re, $tag, $attr_m) && preg_match('/^1|block|span$/', $attr_m[2] . $attr_m[3])) { # Remove `markdown` attribute from opening tag. $tag = preg_replace($markdown_attr_re, '', $tag); - + # Check if text inside this tag must be parsed in span mode. $this->mode = $attr_m[2] . $attr_m[3]; $span_mode = $this->mode == 'span' || $this->mode != 'block' && preg_match('{^<(?:'.$this->contain_span_tags_re.')\b}', $tag); - + # Calculate indent before tag. if (preg_match('/(?:^|\n)( *?)(?! ).*?$/', $block_text, $matches)) { $strlen = $this->utf8_strlen; @@ -2169,44 +2168,44 @@ class MarkdownExtra_Parser extends Markdown_Parser { } else { $indent = 0; } - + # End preceding block with this tag. $block_text .= $tag; $parsed .= $this->$hash_method($block_text); - + # Get enclosing tag name for the ParseMarkdown function. # (This pattern makes $tag_name_re safe without quoting.) preg_match('/^<([\w:$]*)\b/', $tag, $matches); $tag_name_re = $matches[1]; - + # Parse the content using the HTML-in-Markdown parser. list ($block_text, $text) - = $this->_hashHTMLBlocks_inMarkdown($text, $indent, + = $this->_hashHTMLBlocks_inMarkdown($text, $indent, $tag_name_re, $span_mode); - + # Outdent markdown text. if ($indent > 0) { - $block_text = preg_replace("/^[ ]{1,$indent}/m", "", + $block_text = preg_replace("/^[ ]{1,$indent}/m", "", $block_text); } - + # Append tag content to parsed text. if (!$span_mode) $parsed .= "\n\n$block_text\n\n"; else $parsed .= "$block_text"; - + # Start over a new block. $block_text = ""; } else $block_text .= $tag; } - + } while ($depth > 0); - + # # Hash last block text that wasn't processed inside the loop. # $parsed .= $this->$hash_method($block_text); - + return array($parsed, $text); } @@ -2214,87 +2213,12 @@ class MarkdownExtra_Parser extends Markdown_Parser { function hashClean($text) { # # Called whenever a tag must be hashed when a function insert a "clean" tag - # in $text, it pass through this function and is automaticaly escaped, + # in $text, it pass through this function and is automaticaly escaped, # blocking invalid nested overlap. # return $this->hashPart($text, 'C'); } - function _doAnchors_inline_callback($matches) { - // $whole_match = $matches[1]; - $link_text = $this->runSpanGamut($matches[2]); - $url = $matches[3] == '' ? $matches[4] : $matches[3]; - $title =& $matches[7]; - - $url = $this->encodeAttribute($url); - - $result = "<a href=\"$url\""; - if (isset($title)) { - $title = $this->encodeAttribute($title); - $result .= " title=\"$title\""; - } - - if ($this->el_enable && preg_match('/^https?\:\/\//', $url) && !preg_match('/^https?\:\/\/'.$this->el_local_domain.'/', $url)) { - if ($this->el_new_window) { - $result .= ' target="_blank"'; - } - - if ($this->el_css_class) { - $result .= ' class="'.$this->el_css_class.'"'; - } - } - - $link_text = $this->runSpanGamut($link_text); - $result .= ">$link_text</a>"; - - return $this->hashPart($result); - } - - function _doAnchors_reference_callback($matches) { - $whole_match = $matches[1]; - $link_text = $matches[2]; - $link_id =& $matches[3]; - $result = ''; - - if ($link_id == "") { - # for shortcut links like [this][] or [this]. - $link_id = $link_text; - } - - # lower-case and turn embedded newlines into spaces - $link_id = strtolower($link_id); - $link_id = preg_replace('{[ ]?\n}', ' ', $link_id); - - if (isset($this->urls[$link_id])) { - $url = $this->urls[$link_id]; - $url = $this->encodeAttribute($url); - - $result = "<a href=\"$url\""; - if ( isset( $this->titles[$link_id] ) ) { - $title = $this->titles[$link_id]; - $title = $this->encodeAttribute($title); - $result .= " title=\"$title\""; - } - - if ($this->el_enable && preg_match('/^https?\:\/\//', $url) && !preg_match('/^https?\:\/\/'.$this->el_local_domain.'/', $url)) { - if ($this->el_new_window) { - $result .= ' target="_blank"'; - } - - if ($this->el_css_class) { - $result .= ' class="'.$this->el_css_class.'"'; - } - } - - $link_text = $this->runSpanGamut($link_text); - $result .= ">$link_text</a>"; - $result = $this->hashPart($result); - } - else { - $result = $whole_match; - } - return $result; - } function doHeaders($text) { # @@ -2303,7 +2227,7 @@ class MarkdownExtra_Parser extends Markdown_Parser { # Setext-style headers: # Header 1 {#header1} # ======== - # + # # Header 2 {#header2} # -------- # @@ -2345,36 +2269,15 @@ class MarkdownExtra_Parser extends Markdown_Parser { return $matches[0]; $level = $matches[3]{0} == '=' ? 1 : 2; $attr = $this->_doHeaders_attr($id =& $matches[2]); - $body = $this->runSpanGamut($matches[1]); - $body = $this->_doHeaders_selflink($id, $body); - - $block = "<h$level$attr>$body</h$level>"; + $block = "<h$level$attr>".$this->runSpanGamut($matches[1])."</h$level>"; return "\n" . $this->hashBlock($block) . "\n\n"; } function _doHeaders_callback_atx($matches) { $level = strlen($matches[1]); $attr = $this->_doHeaders_attr($id =& $matches[3]); - $body = $this->runSpanGamut($matches[2]); - $body = $this->_doHeaders_selflink($id, $body); - - $block = "<h$level$attr>$body</h$level>"; + $block = "<h$level$attr>".$this->runSpanGamut($matches[2])."</h$level>"; return "\n" . $this->hashBlock($block) . "\n\n"; } - function _doHeaders_selflink($id, $body) { - if (!empty($id)) { - $link = '<a href="#'.$id.'"'; - - if ($this->ha_class) { - $link .= ' class="'.$this->ha_class.'"'; - } - - $link .= '>'.$this->ha_text.'</a>'; - - $body .= $link; - } - - return $body; - } function doTables($text) { @@ -2396,10 +2299,10 @@ class MarkdownExtra_Parser extends Markdown_Parser { [ ]{0,'.$less_than_tab.'} # Allowed whitespace. [|] # Optional leading pipe (present) (.+) \n # $1: Header row (at least one pipe) - + [ ]{0,'.$less_than_tab.'} # Allowed whitespace. [|] ([ ]*[-:]+[-| :]*) \n # $2: Header underline - + ( # $3: Cells (?> [ ]* # Allowed whitespace. @@ -2409,7 +2312,7 @@ class MarkdownExtra_Parser extends Markdown_Parser { (?=\n|\Z) # Stop at final double newline. }xm', array(&$this, '_doTable_leadingPipe_callback'), $text); - + # # Find tables without leading pipe. # @@ -2423,10 +2326,10 @@ class MarkdownExtra_Parser extends Markdown_Parser { ^ # Start of a line [ ]{0,'.$less_than_tab.'} # Allowed whitespace. (\S.*[|].*) \n # $1: Header row (at least one pipe) - + [ ]{0,'.$less_than_tab.'} # Allowed whitespace. ([-:]+[ ]*[|][-| :]*) \n # $2: Header underline - + ( # $3: Cells (?> .* [|] .* \n # Row content @@ -2442,10 +2345,10 @@ class MarkdownExtra_Parser extends Markdown_Parser { $head = $matches[1]; $underline = $matches[2]; $content = $matches[3]; - + # Remove leading pipe for each row. $content = preg_replace('/^ *[|]/m', '', $content); - + return $this->_doTable_callback(array($matches[0], $head, $underline, $content)); } function _doTable_callback($matches) { @@ -2457,7 +2360,7 @@ class MarkdownExtra_Parser extends Markdown_Parser { $head = preg_replace('/[|] *$/m', '', $head); $underline = preg_replace('/[|] *$/m', '', $underline); $content = preg_replace('/[|] *$/m', '', $content); - + # Reading alignement from header underline. $separators = preg_split('/ *[|] */', $underline); foreach ($separators as $n => $s) { @@ -2466,13 +2369,13 @@ class MarkdownExtra_Parser extends Markdown_Parser { else if (preg_match('/^ *:-+ *$/', $s)) $attr[$n] = ' align="left"'; else $attr[$n] = ''; } - - # Parsing span elements, including code spans, character escapes, + + # Parsing span elements, including code spans, character escapes, # and inline HTML tags, so that pipes inside those gets ignored. $head = $this->parseSpan($head); $headers = preg_split('/ *[|] */', $head); $col_count = count($headers); - + # Write column headers. $text = "<table>\n"; $text .= "<thead>\n"; @@ -2481,20 +2384,20 @@ class MarkdownExtra_Parser extends Markdown_Parser { $text .= " <th$attr[$n]>".$this->runSpanGamut(trim($header))."</th>\n"; $text .= "</tr>\n"; $text .= "</thead>\n"; - + # Split content by row. $rows = explode("\n", trim($content, "\n")); - + $text .= "<tbody>\n"; foreach ($rows as $row) { - # Parsing span elements, including code spans, character escapes, + # Parsing span elements, including code spans, character escapes, # and inline HTML tags, so that pipes inside those gets ignored. $row = $this->parseSpan($row); - + # Split row by cell. $row_cells = preg_split('/ *[|] */', $row, $col_count); $row_cells = array_pad($row_cells, $col_count, ''); - + $text .= "<tr>\n"; foreach ($row_cells as $n => $cell) $text .= " <td$attr[$n]>".$this->runSpanGamut(trim($cell))."</td>\n"; @@ -2502,11 +2405,11 @@ class MarkdownExtra_Parser extends Markdown_Parser { } $text .= "</tbody>\n"; $text .= "</table>"; - + return $this->hashBlock($text) . "\n"; } - + function doDefLists($text) { # # Form HTML definition lists. @@ -2552,7 +2455,7 @@ class MarkdownExtra_Parser extends Markdown_Parser { function _doDefLists_callback($matches) { # Re-usable patterns to match list item bullets and number markers: $list = $matches[1]; - + # Turn double returns into triple returns, so that we can make a # paragraph for the last item in a list, if necessary: $result = trim($this->processDefListItems($list)); @@ -2567,7 +2470,7 @@ class MarkdownExtra_Parser extends Markdown_Parser { # into individual term and definition list items. # $less_than_tab = $this->tab_width - 1; - + # trim trailing blank lines: $list_str = preg_replace("/\n{2,}\\z/", "\n", $list_str); @@ -2576,11 +2479,11 @@ class MarkdownExtra_Parser extends Markdown_Parser { (?>\A\n?|\n\n+) # leading line ( # definition terms = $1 [ ]{0,'.$less_than_tab.'} # leading whitespace - (?![:][ ]|[ ]) # negative lookahead for a definition + (?![:][ ]|[ ]) # negative lookahead for a definition # mark (colon) or more whitespace. - (?> \S.* \n)+? # actual term (not whitespace). - ) - (?=\n?[ ]{0,3}:[ ]) # lookahead for following line feed + (?> \S.* \n)+? # actual term (not whitespace). + ) + (?=\n?[ ]{0,3}:[ ]) # lookahead for following line feed # with a definition mark. }xm', array(&$this, '_processDefListItems_callback_dt'), $list_str); @@ -2596,33 +2499,20 @@ class MarkdownExtra_Parser extends Markdown_Parser { (?= \n+ # stop at next definition mark, (?: # next term or end of text [ ]{0,'.$less_than_tab.'} [:][ ] | - <dt | \z - ) - ) + <dt> | \z + ) + ) }xm', array(&$this, '_processDefListItems_callback_dd'), $list_str); return $list_str; } function _processDefListItems_callback_dt($matches) { - $anchor_regexp = '/\{\#([-_:a-zA-Z0-9]+)\}/'; $terms = explode("\n", trim($matches[1])); $text = ''; - $id = array(); - foreach ($terms as $term) { - $id = ''; - if (preg_match($anchor_regexp, $term, $id) > 0) { - $term = preg_replace($anchor_regexp, '', $term); - $id = ' id="'.trim($id[1]).'"'; - } - - if (count($id) === 0) { - $id = ''; - } - $term = $this->runSpanGamut(trim($term)); - $text .= "\n<dt$id>" . $term . "</dt>"; + $text .= "\n<dt>" . $term . "</dt>"; } return $text . "\n"; } @@ -2655,7 +2545,7 @@ class MarkdownExtra_Parser extends Markdown_Parser { # ~~~ # $less_than_tab = $this->tab_width; - + $text = preg_replace_callback('{ (?:\n|\A) # 1: Opening marker @@ -2663,7 +2553,7 @@ class MarkdownExtra_Parser extends Markdown_Parser { ~{3,} # Marker: three tilde or more. ) [ ]* \n # Whitespace and newline following marker. - + # 2: Content ( (?> @@ -2671,7 +2561,7 @@ class MarkdownExtra_Parser extends Markdown_Parser { .*\n+ )+ ) - + # Closing marker. \1 [ ]* \n }xm', @@ -2688,7 +2578,7 @@ class MarkdownExtra_Parser extends Markdown_Parser { return "\n\n".$this->hashBlock($codeblock)."\n\n"; } function _doFencedCodeBlocks_newlines($matches) { - return str_repeat("<br$this->empty_element_suffix", + return str_repeat("<br$this->empty_element_suffix", strlen($matches[0])); } @@ -2698,19 +2588,19 @@ class MarkdownExtra_Parser extends Markdown_Parser { # work in the middle of a word. # var $em_relist = array( - '' => '(?:(?<!\*)\*(?!\*)|(?<![a-zA-Z0-9_])_(?!_))(?=\S)(?![.,:;]\s)', - '*' => '(?<=\S)(?<!\*)\*(?!\*)', - '_' => '(?<=\S)(?<!_)_(?![a-zA-Z0-9_])', + '' => '(?:(?<!\*)\*(?!\*)|(?<![a-zA-Z0-9_])_(?!_))(?=\S|$)(?![\.,:;]\s)', + '*' => '(?<=\S|^)(?<!\*)\*(?!\*)', + '_' => '(?<=\S|^)(?<!_)_(?![a-zA-Z0-9_])', ); var $strong_relist = array( - '' => '(?:(?<!\*)\*\*(?!\*)|(?<![a-zA-Z0-9_])__(?!_))(?=\S)(?![.,:;]\s)', - '**' => '(?<=\S)(?<!\*)\*\*(?!\*)', - '__' => '(?<=\S)(?<!_)__(?![a-zA-Z0-9_])', + '' => '(?:(?<!\*)\*\*(?!\*)|(?<![a-zA-Z0-9_])__(?!_))(?=\S|$)(?![\.,:;]\s)', + '**' => '(?<=\S|^)(?<!\*)\*\*(?!\*)', + '__' => '(?<=\S|^)(?<!_)__(?![a-zA-Z0-9_])', ); var $em_strong_relist = array( - '' => '(?:(?<!\*)\*\*\*(?!\*)|(?<![a-zA-Z0-9_])___(?!_))(?=\S)(?![.,:;]\s)', - '***' => '(?<=\S)(?<!\*)\*\*\*(?!\*)', - '___' => '(?<=\S)(?<!_)___(?![a-zA-Z0-9_])', + '' => '(?:(?<!\*)\*\*\*(?!\*)|(?<![a-zA-Z0-9_])___(?!_))(?=\S|$)(?![\.,:;]\s)', + '***' => '(?<=\S|^)(?<!\*)\*\*\*(?!\*)', + '___' => '(?<=\S|^)(?<!_)___(?![a-zA-Z0-9_])', ); @@ -2721,7 +2611,7 @@ class MarkdownExtra_Parser extends Markdown_Parser { # # Strip leading and trailing lines: $text = preg_replace('/\A\n+|\n+\z/', '', $text); - + $grafs = preg_split('/\n{2,}/', $text, -1, PREG_SPLIT_NO_EMPTY); # @@ -2729,29 +2619,29 @@ class MarkdownExtra_Parser extends Markdown_Parser { # foreach ($grafs as $key => $value) { $value = trim($this->runSpanGamut($value)); - + # Check if this should be enclosed in a paragraph. # Clean tag hashes & block tag hashes are left alone. $is_p = !preg_match('/^B\x1A[0-9]+B|^C\x1A[0-9]+C$/', $value); - + if ($is_p) { $value = "<p>$value</p>"; } $grafs[$key] = $value; } - - # Join grafs in one text, then unhash HTML tags. + + # Join grafs in one text, then unhash HTML tags. $text = implode("\n\n", $grafs); - + # Finish by removing any tag hashes still present in $text. $text = $this->unhash($text); - + return $text; } - - + + ### Footnotes - + function stripFootnotes($text) { # # Strips link definitions from text, stores the URLs and titles in @@ -2765,15 +2655,15 @@ class MarkdownExtra_Parser extends Markdown_Parser { [ ]* \n? # maybe *one* newline ( # text = $2 (no blank lines allowed) - (?: + (?: .+ # actual text | - \n # newlines but + \n # newlines but (?!\[\^.+?\]:\s)# negative lookahead for footnote marker. - (?!\n+[ ]{0,3}\S)# ensure line is not blank and followed + (?!\n+[ ]{0,3}\S)# ensure line is not blank and followed # by non-indented content )* - ) + ) }xm', array(&$this, '_stripFootnotes_callback'), $text); @@ -2788,7 +2678,7 @@ class MarkdownExtra_Parser extends Markdown_Parser { function doFootnotes($text) { # - # Replace footnote references in $text [^id] with a special text-token + # Replace footnote references in $text [^id] with a special text-token # which will be replaced by the actual footnote marker in appendFootnotes. # if (!$this->in_anchor) { @@ -2797,20 +2687,20 @@ class MarkdownExtra_Parser extends Markdown_Parser { return $text; } - + function appendFootnotes($text) { # # Append footnote list to text. # - $text = preg_replace_callback('{F\x1Afn:(.*?)\x1A:}', + $text = preg_replace_callback('{F\x1Afn:(.*?)\x1A:}', array(&$this, '_appendFootnotes_callback'), $text); - + if (!empty($this->footnotes_ordered)) { $text .= "\n\n"; $text .= "<div class=\"footnotes\">\n"; - $text .= "<hr". MARKDOWN_EMPTY_ELEMENT_SUFFIX ."\n"; + $text .= "<hr". $this->empty_element_suffix ."\n"; $text .= "<ol>\n\n"; - + $attr = " rev=\"footnote\""; if ($this->fn_backlink_class != "") { $class = $this->fn_backlink_class; @@ -2823,20 +2713,20 @@ class MarkdownExtra_Parser extends Markdown_Parser { $attr .= " title=\"$title\""; } $num = 0; - + while (!empty($this->footnotes_ordered)) { $footnote = reset($this->footnotes_ordered); $note_id = key($this->footnotes_ordered); unset($this->footnotes_ordered[$note_id]); - + $footnote .= "\n"; # Need to append newline before parsing. - $footnote = $this->runBlockGamut("$footnote\n"); - $footnote = preg_replace_callback('{F\x1Afn:(.*?)\x1A:}', + $footnote = $this->runBlockGamut("$footnote\n"); + $footnote = preg_replace_callback('{F\x1Afn:(.*?)\x1A:}', array(&$this, '_appendFootnotes_callback'), $footnote); - + $attr = str_replace("%%", ++$num, $attr); $note_id = $this->encodeAttribute($note_id); - + # Add backlink to last paragraph; create new paragraph if needed. $backlink = "<a href=\"#fnref:$note_id\"$attr>↩</a>"; if (preg_match('{</p>$}', $footnote)) { @@ -2844,12 +2734,12 @@ class MarkdownExtra_Parser extends Markdown_Parser { } else { $footnote .= "\n\n<p>$backlink</p>"; } - + $text .= "<li id=\"fn:$note_id\">\n"; $text .= $footnote . "\n"; $text .= "</li>\n\n"; } - + $text .= "</ol>\n"; $text .= "</div>"; } @@ -2857,14 +2747,14 @@ class MarkdownExtra_Parser extends Markdown_Parser { } function _appendFootnotes_callback($matches) { $node_id = $this->fn_id_prefix . $matches[1]; - + # Create footnote marker only if it has a corresponding footnote *and* # the footnote hasn't been used by another marker. if (isset($this->footnotes[$node_id])) { # Transfert footnote content to the ordered list. $this->footnotes_ordered[$node_id] = $this->footnotes[$node_id]; unset($this->footnotes[$node_id]); - + $num = $this->footnote_counter++; $attr = " rel=\"footnote\""; if ($this->fn_link_class != "") { @@ -2877,22 +2767,22 @@ class MarkdownExtra_Parser extends Markdown_Parser { $title = $this->encodeAttribute($title); $attr .= " title=\"$title\""; } - + $attr = str_replace("%%", $num, $attr); $node_id = $this->encodeAttribute($node_id); - + return "<sup id=\"fnref:$node_id\">". "<a href=\"#fn:$node_id\"$attr>$num</a>". "</sup>"; } - + return "[^".$matches[1]."]"; } - - + + ### Abbreviations ### - + function stripAbbreviations($text) { # # Strips abbreviations from text, stores titles in hash references. @@ -2902,7 +2792,7 @@ class MarkdownExtra_Parser extends Markdown_Parser { # Link defs are in the form: [id]*: url "optional title" $text = preg_replace_callback('{ ^[ ]{0,'.$less_than_tab.'}\*\[(.+?)\][ ]?: # abbr_id = $1 - (.*) # text = $2 (no blank lines allowed) + (.*) # text = $2 (no blank lines allowed) }xm', array(&$this, '_stripAbbreviations_callback'), $text); @@ -2917,20 +2807,20 @@ class MarkdownExtra_Parser extends Markdown_Parser { $this->abbr_desciptions[$abbr_word] = trim($abbr_desc); return ''; # String that will replace the block } - - + + function doAbbreviations($text) { # # Find defined abbreviations in text and wrap them in <abbr> elements. # if ($this->abbr_word_re) { - // cannot use the /x modifier because abbr_word_re may + // cannot use the /x modifier because abbr_word_re may // contain significant spaces: $text = preg_replace_callback('{'. '(?<![\w\x1A])'. '(?:'.$this->abbr_word_re.')'. '(?![\w\x1A])'. - '}', + '}', array(&$this, '_doAbbreviations_callback'), $text); } return $text; @@ -2961,9 +2851,9 @@ PHP Markdown Extra Description ----------- -This is a PHP port of the original Markdown formatter written in Perl -by John Gruber. This special "Extra" version of PHP Markdown features -further enhancements to the syntax for making additional constructs +This is a PHP port of the original Markdown formatter written in Perl +by John Gruber. This special "Extra" version of PHP Markdown features +further enhancements to the syntax for making additional constructs such as tables and definition list. Markdown is a text-to-HTML filter; it translates an easy-to-read / @@ -2993,7 +2883,7 @@ expected; (3) the output Markdown actually produced. Version History ---------------- +--------------- See the readme file for detailed release notes for this version. @@ -3001,14 +2891,14 @@ See the readme file for detailed release notes for this version. Copyright and License --------------------- -PHP Markdown & Extra -Copyright (c) 2004-2008 Michel Fortin -<http://www.michelf.com/> +PHP Markdown & Extra +Copyright (c) 2004-2009 Michel Fortin +<http://michelf.com/> All rights reserved. -Based on Markdown -Copyright (c) 2003-2006 John Gruber -<http://daringfireball.net/> +Based on Markdown +Copyright (c) 2003-2006 John Gruber +<http://daringfireball.net/> All rights reserved. Redistribution and use in source and binary forms, with or without @@ -3039,4 +2929,4 @@ negligence or otherwise) arising in any way out of the use of this software, even if advised of the possibility of such damage. */ -?> +?>
\ No newline at end of file |