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- <?php
- namespace Michelf;
- class Markdown implements MarkdownInterface {
-
- const MARKDOWNLIB_VERSION = "1.4.1";
-
- public static function defaultTransform($text) {
-
-
-
-
-
- $parser_class = \get_called_class();
-
- static $parser_list;
- $parser =& $parser_list[$parser_class];
-
- if (!$parser)
- $parser = new $parser_class;
-
- return $parser->transform($text);
- }
-
-
- public $empty_element_suffix = " />";
- public $tab_width = 4;
-
-
- public $no_markup = false;
- public $no_entities = false;
-
-
- public $predef_urls = array();
- public $predef_titles = array();
-
- public $url_filter_func = null;
-
-
-
- protected $nested_brackets_depth = 6;
- protected $nested_brackets_re;
-
- protected $nested_url_parenthesis_depth = 4;
- protected $nested_url_parenthesis_re;
-
- protected $escape_chars = '\`*_{}[]()>#+-.!';
- protected $escape_chars_re;
- public function __construct() {
-
-
-
- $this->_initDetab();
- $this->prepareItalicsAndBold();
-
- $this->nested_brackets_re =
- str_repeat('(?>[^\[\]]+|\[', $this->nested_brackets_depth).
- str_repeat('\])*', $this->nested_brackets_depth);
-
- $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).']';
-
-
- asort($this->document_gamut);
- asort($this->block_gamut);
- asort($this->span_gamut);
- }
-
- protected $urls = array();
- protected $titles = array();
- protected $html_hashes = array();
-
-
- protected $in_anchor = false;
-
-
- protected function setup() {
-
-
-
-
-
- $this->urls = $this->predef_urls;
- $this->titles = $this->predef_titles;
- $this->html_hashes = array();
-
- $this->in_anchor = false;
- }
-
- protected function teardown() {
-
-
-
-
- $this->urls = array();
- $this->titles = array();
- $this->html_hashes = array();
- }
- public function transform($text) {
-
-
-
-
- $this->setup();
-
-
- $text = preg_replace('{^\xEF\xBB\xBF|\x1A}', '', $text);
-
-
- $text = preg_replace('{\r\n?}', "\n", $text);
-
- $text .= "\n\n";
-
- $text = $this->detab($text);
-
- $text = $this->hashHTMLBlocks($text);
-
-
-
-
- $text = preg_replace('/^[ ]+$/m', '', $text);
-
- foreach ($this->document_gamut as $method => $priority) {
- $text = $this->$method($text);
- }
-
- $this->teardown();
- return $text . "\n";
- }
-
- protected $document_gamut = array(
-
- "stripLinkDefinitions" => 20,
-
- "runBasicBlockGamut" => 30,
- );
- protected function stripLinkDefinitions($text) {
-
-
-
-
- $less_than_tab = $this->tab_width - 1;
-
- $text = preg_replace_callback('{
- ^[ ]{0,'.$less_than_tab.'}\[(.+)\][ ]?: # id = $1
- [ ]*
- \n? # maybe *one* newline
- [ ]*
- (?:
- <(.+?)> # url = $2
- |
- (\S+?) # url = $3
- )
- [ ]*
- \n? # maybe one newline
- [ ]*
- (?:
- (?<=\s) # lookbehind for whitespace
- ["(]
- (.*?) # title = $4
- [")]
- [ ]*
- )? # title is optional
- (?:\n+|\Z)
- }xm',
- array($this, '_stripLinkDefinitions_callback'),
- $text);
- return $text;
- }
- protected function _stripLinkDefinitions_callback($matches) {
- $link_id = strtolower($matches[1]);
- $url = $matches[2] == '' ? $matches[3] : $matches[2];
- $this->urls[$link_id] = $url;
- $this->titles[$link_id] =& $matches[4];
- return '';
- }
- protected function hashHTMLBlocks($text) {
- if ($this->no_markup) return $text;
- $less_than_tab = $this->tab_width - 1;
-
-
-
-
-
-
-
-
-
-
-
-
-
- $block_tags_a_re = 'ins|del';
- $block_tags_b_re = 'p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|address|'.
- 'script|noscript|style|form|fieldset|iframe|math|svg|'.
- 'article|section|nav|aside|hgroup|header|footer|'.
- 'figure';
-
- $nested_tags_level = 4;
- $attr = '
- (?> # optional tag attributes
- \s # starts with whitespace
- (?>
- [^>"/]+ # text outside quotes
- |
- /+(?!>) # slash not followed by ">"
- |
- "[^"]*" # text inside double quotes (tolerate ">")
- |
- \'[^\']*\' # text inside single quotes (tolerate ">")
- )*
- )?
- ';
- $content =
- str_repeat('
- (?>
- [^<]+ # content without tag
- |
- <\2 # nested opening tag
- '.$attr.' # attributes
- (?>
- />
- |
- >', $nested_tags_level).
- '.*?'.
- str_repeat('
- </\2\s*> # closing nested tag
- )
- |
- <(?!/\2\s*> # other tags with a different name
- )
- )*',
- $nested_tags_level);
- $content2 = str_replace('\2', '\3', $content);
-
-
-
-
-
-
-
-
-
-
-
- $text = preg_replace_callback('{(?>
- (?>
- (?<=\n) # Starting on its own line
- | # or
- \A\n? # the at beginning of the doc
- )
- ( # save in $1
- # Match from `\n<tag>` to `</tag>\n`, handling nested tags
- # in between.
-
- [ ]{0,'.$less_than_tab.'}
- <('.$block_tags_b_re.')# start tag = $2
- '.$attr.'> # attributes followed by > and \n
- '.$content.' # content, support nesting
- </\2> # the matching end tag
- [ ]* # trailing spaces/tabs
- (?=\n+|\Z) # followed by a newline or end of document
- | # Special version for tags of group a.
- [ ]{0,'.$less_than_tab.'}
- <('.$block_tags_a_re.')# start tag = $3
- '.$attr.'>[ ]*\n # attributes followed by >
- '.$content2.' # content, support nesting
- </\3> # the matching end tag
- [ ]* # trailing spaces/tabs
- (?=\n+|\Z) # followed by a newline or end of document
-
- | # Special case just for <hr />. It was easier to make a special
- # case than to make the other regex more complicated.
-
- [ ]{0,'.$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:
- <([?%]) # $2
- .*?
- \2>
- )
- [ ]*
- (?=\n{2,}|\Z) # followed by a blank line or end of document
-
- )
- )}Sxmi',
- array($this, '_hashHTMLBlocks_callback'),
- $text);
- return $text;
- }
- protected function _hashHTMLBlocks_callback($matches) {
- $text = $matches[1];
- $key = $this->hashBlock($text);
- return "\n\n$key\n\n";
- }
-
-
- protected function hashPart($text, $boundary = 'X') {
-
-
-
-
-
-
-
-
-
-
-
-
- $text = $this->unhash($text);
-
-
- static $i = 0;
- $key = "$boundary\x1A" . ++$i . $boundary;
- $this->html_hashes[$key] = $text;
- return $key;
- }
- protected function hashBlock($text) {
-
-
-
- return $this->hashPart($text, 'B');
- }
- protected $block_gamut = array(
-
-
-
-
- "doHeaders" => 10,
- "doHorizontalRules" => 20,
-
- "doLists" => 40,
- "doCodeBlocks" => 50,
- "doBlockQuotes" => 60,
- );
- protected function runBlockGamut($text) {
-
-
-
-
-
-
-
-
- $text = $this->hashHTMLBlocks($text);
-
- return $this->runBasicBlockGamut($text);
- }
-
- protected function runBasicBlockGamut($text) {
-
-
-
-
-
- foreach ($this->block_gamut as $method => $priority) {
- $text = $this->$method($text);
- }
-
-
- $text = $this->formParagraphs($text);
- return $text;
- }
-
-
- protected function doHorizontalRules($text) {
-
- return preg_replace(
- '{
- ^[ ]{0,3} # Leading space
- ([-*_]) # $1: First marker
- (?> # Repeated marker group
- [ ]{0,2} # Zero, one, or two spaces.
- \1 # Marker character
- ){2,} # Group repeated at least twice
- [ ]* # Tailing spaces
- $ # End of line.
- }mx',
- "\n".$this->hashBlock("<hr$this->empty_element_suffix")."\n",
- $text);
- }
- protected $span_gamut = array(
-
-
-
-
-
-
- "parseSpan" => -30,
-
-
- "doImages" => 10,
- "doAnchors" => 20,
-
-
-
-
- "doAutoLinks" => 30,
- "encodeAmpsAndAngles" => 40,
- "doItalicsAndBold" => 50,
- "doHardBreaks" => 60,
- );
- protected function runSpanGamut($text) {
-
-
-
- foreach ($this->span_gamut as $method => $priority) {
- $text = $this->$method($text);
- }
- return $text;
- }
-
-
- protected function doHardBreaks($text) {
-
- return preg_replace_callback('/ {2,}\n/',
- array($this, '_doHardBreaks_callback'), $text);
- }
- protected function _doHardBreaks_callback($matches) {
- return $this->hashPart("<br$this->empty_element_suffix\n");
- }
- protected function doAnchors($text) {
-
-
-
- if ($this->in_anchor) return $text;
- $this->in_anchor = true;
-
-
-
-
- $text = preg_replace_callback('{
- ( # wrap whole match in $1
- \[
- ('.$this->nested_brackets_re.') # link text = $2
- \]
- [ ]? # one optional space
- (?:\n[ ]*)? # one optional newline followed by spaces
- \[
- (.*?) # id = $3
- \]
- )
- }xs',
- array($this, '_doAnchors_reference_callback'), $text);
-
-
-
- $text = preg_replace_callback('{
- ( # wrap whole match in $1
- \[
- ('.$this->nested_brackets_re.') # link text = $2
- \]
- \( # literal paren
- [ \n]*
- (?:
- <(.+?)> # href = $3
- |
- ('.$this->nested_url_parenthesis_re.') # href = $4
- )
- [ \n]*
- ( # $5
- ([\'"]) # quote char = $6
- (.*?) # Title = $7
- \6 # matching quote
- [ \n]* # ignore any spaces/tabs between closing quote and )
- )? # title is optional
- \)
- )
- }xs',
- array($this, '_doAnchors_inline_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 $text;
- }
- protected function _doAnchors_reference_callback($matches) {
- $whole_match = $matches[1];
- $link_text = $matches[2];
- $link_id =& $matches[3];
- if ($link_id == "") {
-
- $link_id = $link_text;
- }
-
-
- $link_id = strtolower($link_id);
- $link_id = preg_replace('{[ ]?\n}', ' ', $link_id);
- if (isset($this->urls[$link_id])) {
- $url = $this->urls[$link_id];
- $url = $this->encodeURLAttribute($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);
- }
- else {
- $result = $whole_match;
- }
- return $result;
- }
- protected function _doAnchors_inline_callback($matches) {
- $whole_match = $matches[1];
- $link_text = $this->runSpanGamut($matches[2]);
- $url = $matches[3] == '' ? $matches[4] : $matches[3];
- $title =& $matches[7];
-
-
- $unhashed = $this->unhash($url);
- if ($unhashed != $url)
- $url = preg_replace('/^<(.*)>$/', '\1', $unhashed);
- $url = $this->encodeURLAttribute($url);
- $result = "<a href=\"$url\"";
- if (isset($title)) {
- $title = $this->encodeAttribute($title);
- $result .= " title=\"$title\"";
- }
-
- $link_text = $this->runSpanGamut($link_text);
- $result .= ">$link_text</a>";
- return $this->hashPart($result);
- }
- protected function doImages($text) {
-
-
-
-
-
-
- $text = preg_replace_callback('{
- ( # wrap whole match in $1
- !\[
- ('.$this->nested_brackets_re.') # alt text = $2
- \]
- [ ]? # one optional space
- (?:\n[ ]*)? # one optional newline followed by spaces
- \[
- (.*?) # id = $3
- \]
- )
- }xs',
- array($this, '_doImages_reference_callback'), $text);
-
-
-
-
- $text = preg_replace_callback('{
- ( # wrap whole match in $1
- !\[
- ('.$this->nested_brackets_re.') # alt text = $2
- \]
- \s? # One optional whitespace character
- \( # literal paren
- [ \n]*
- (?:
- <(\S*)> # src url = $3
- |
- ('.$this->nested_url_parenthesis_re.') # src url = $4
- )
- [ \n]*
- ( # $5
- ([\'"]) # quote char = $6
- (.*?) # title = $7
- \6 # matching quote
- [ \n]*
- )? # title is optional
- \)
- )
- }xs',
- array($this, '_doImages_inline_callback'), $text);
- return $text;
- }
- protected function _doImages_reference_callback($matches) {
- $whole_match = $matches[1];
- $alt_text = $matches[2];
- $link_id = strtolower($matches[3]);
- if ($link_id == "") {
- $link_id = strtolower($alt_text);
- }
- $alt_text = $this->encodeAttribute($alt_text);
- if (isset($this->urls[$link_id])) {
- $url = $this->encodeURLAttribute($this->urls[$link_id]);
- $result = "<img src=\"$url\" alt=\"$alt_text\"";
- if (isset($this->titles[$link_id])) {
- $title = $this->titles[$link_id];
- $title = $this->encodeAttribute($title);
- $result .= " title=\"$title\"";
- }
- $result .= $this->empty_element_suffix;
- $result = $this->hashPart($result);
- }
- else {
-
- $result = $whole_match;
- }
- return $result;
- }
- protected function _doImages_inline_callback($matches) {
- $whole_match = $matches[1];
- $alt_text = $matches[2];
- $url = $matches[3] == '' ? $matches[4] : $matches[3];
- $title =& $matches[7];
- $alt_text = $this->encodeAttribute($alt_text);
- $url = $this->encodeURLAttribute($url);
- $result = "<img src=\"$url\" alt=\"$alt_text\"";
- if (isset($title)) {
- $title = $this->encodeAttribute($title);
- $result .= " title=\"$title\"";
- }
- $result .= $this->empty_element_suffix;
- return $this->hashPart($result);
- }
- protected function doHeaders($text) {
-
-
-
-
-
-
-
- $text = preg_replace_callback('{ ^(.+?)[ ]*\n(=+|-+)[ ]*\n+ }mx',
- array($this, '_doHeaders_callback_setext'), $text);
-
-
-
-
-
-
-
- $text = preg_replace_callback('{
- ^(\#{1,6}) # $1 = string of #\'s
- [ ]*
- (.+?) # $2 = Header text
- [ ]*
- \#* # optional closing #\'s (not counted)
- \n+
- }xm',
- array($this, '_doHeaders_callback_atx'), $text);
- return $text;
- }
- protected function _doHeaders_callback_setext($matches) {
-
- 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";
- }
- protected function _doHeaders_callback_atx($matches) {
- $level = strlen($matches[1]);
- $block = "<h$level>".$this->runSpanGamut($matches[2])."</h$level>";
- return "\n" . $this->hashBlock($block) . "\n\n";
- }
- protected function doLists($text) {
-
-
-
- $less_than_tab = $this->tab_width - 1;
-
- $marker_ul_re = '[*+-]';
- $marker_ol_re = '\d+[\.]';
- $markers_relist = array(
- $marker_ul_re => $marker_ol_re,
- $marker_ol_re => $marker_ul_re,
- );
- foreach ($markers_relist as $marker_re => $other_marker_re) {
-
- $whole_list_re = '
- ( # $1 = whole list
- ( # $2
- ([ ]{0,'.$less_than_tab.'}) # $3 = number of spaces
- ('.$marker_re.') # $4 = first list item marker
- [ ]+
- )
- (?s:.+?)
- ( # $5
- \z
- |
- \n{2,}
- (?=\S)
- (?! # Negative lookahead for another list item marker
- [ ]*
- '.$marker_re.'[ ]+
- )
- |
- (?= # Lookahead for another kind of list
- \n
- \3 # Must have the same indentation
- '.$other_marker_re.'[ ]+
- )
- )
- )
- ';
-
-
-
-
- if ($this->list_level) {
- $text = preg_replace_callback('{
- ^
- '.$whole_list_re.'
- }mx',
- array($this, '_doLists_callback'), $text);
- }
- else {
- $text = preg_replace_callback('{
- (?:(?<=\n)\n|\A\n?) # Must eat the newline
- '.$whole_list_re.'
- }mx',
- array($this, '_doLists_callback'), $text);
- }
- }
- return $text;
- }
- protected function _doLists_callback($matches) {
-
- $marker_ul_re = '[*+-]';
- $marker_ol_re = '\d+[\.]';
- $marker_any_re = "(?:$marker_ul_re|$marker_ol_re)";
-
- $list = $matches[1];
- $list_type = preg_match("/$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";
- }
- protected $list_level = 0;
- protected function processListItems($list_str, $marker_any_re) {
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
- $this->list_level++;
-
- $list_str = preg_replace("/\n{2,}\\z/", "\n", $list_str);
- $list_str = preg_replace_callback('{
- (\n)? # leading line = $1
- (^[ ]*) # leading whitespace = $2
- ('.$marker_any_re.' # list marker and space = $3
- (?:[ ]+|(?=\n)) # space only required if item is not empty
- )
- ((?s:.*?)) # list item text = $4
- (?:(\n+(?=\n))|\n) # tailing blank line = $5
- (?= \n* (\z | \2 ('.$marker_any_re.') (?:[ ]+|(?=\n))))
- }xm',
- array($this, '_processListItems_callback'), $list_str);
- $this->list_level--;
- return $list_str;
- }
- protected function _processListItems_callback($matches) {
- $item = $matches[4];
- $leading_line =& $matches[1];
- $leading_space =& $matches[2];
- $marker_space = $matches[3];
- $tailing_blank_line =& $matches[5];
- if ($leading_line || $tailing_blank_line ||
- preg_match('/\n{2,}/', $item))
- {
-
- $item = $leading_space . str_repeat(' ', strlen($marker_space)) . $item;
- $item = $this->runBlockGamut($this->outdent($item)."\n");
- }
- else {
-
- $item = $this->doLists($this->outdent($item));
- $item = preg_replace('/\n+$/', '', $item);
- $item = $this->runSpanGamut($item);
- }
- return "<li>" . $item . "</li>\n";
- }
- protected function doCodeBlocks($text) {
-
-
-
- $text = preg_replace_callback('{
- (?:\n\n|\A\n?)
- ( # $1 = the code block -- one or more lines, starting with a space/tab
- (?>
- [ ]{'.$this->tab_width.'} # Lines must start with a tab or a tab-width of spaces
- .*\n+
- )+
- )
- ((?=^[ ]{0,'.$this->tab_width.'}\S)|\Z) # Lookahead for non-space at line-start, or end of doc
- }xm',
- array($this, '_doCodeBlocks_callback'), $text);
- return $text;
- }
- protected function _doCodeBlocks_callback($matches) {
- $codeblock = $matches[1];
- $codeblock = $this->outdent($codeblock);
- $codeblock = htmlspecialchars($codeblock, ENT_NOQUOTES);
-
- $codeblock = preg_replace('/\A\n+|\n+\z/', '', $codeblock);
- $codeblock = "<pre><code>$codeblock\n</code></pre>";
- return "\n\n".$this->hashBlock($codeblock)."\n\n";
- }
- protected function makeCodeSpan($code) {
-
-
-
- $code = htmlspecialchars(trim($code), ENT_NOQUOTES);
- return $this->hashPart("<code>$code</code>");
- }
- protected $em_relist = array(
- '' => '(?:(?<!\*)\*(?!\*)|(?<!_)_(?!_))(?![\.,:;]?\s)',
- '*' => '(?<![\s*])\*(?!\*)',
- '_' => '(?<![\s_])_(?!_)',
- );
- protected $strong_relist = array(
- '' => '(?:(?<!\*)\*\*(?!\*)|(?<!_)__(?!_))(?![\.,:;]?\s)',
- '**' => '(?<![\s*])\*\*(?!\*)',
- '__' => '(?<![\s_])__(?!_)',
- );
- protected $em_strong_relist = array(
- '' => '(?:(?<!\*)\*\*\*(?!\*)|(?<!_)___(?!_))(?![\.,:;]?\s)',
- '***' => '(?<![\s*])\*\*\*(?!\*)',
- '___' => '(?<![\s_])___(?!_)',
- );
- protected $em_strong_prepared_relist;
-
- protected function prepareItalicsAndBold() {
-
-
-
-
- foreach ($this->em_relist as $em => $em_re) {
- foreach ($this->strong_relist as $strong => $strong_re) {
-
- $token_relist = array();
- if (isset($this->em_strong_relist["$em$strong"])) {
- $token_relist[] = $this->em_strong_relist["$em$strong"];
- }
- $token_relist[] = $em_re;
- $token_relist[] = $strong_re;
-
-
- $token_re = '{('. implode('|', $token_relist) .')}';
- $this->em_strong_prepared_relist["$em$strong"] = $token_re;
- }
- }
- }
-
- protected function doItalicsAndBold($text) {
- $token_stack = array('');
- $text_stack = array('');
- $em = '';
- $strong = '';
- $tree_char_em = false;
-
- while (1) {
-
-
-
-
- $token_re = $this->em_strong_prepared_relist["$em$strong"];
-
-
-
-
-
- $parts = preg_split($token_re, $text, 2, PREG_SPLIT_DELIM_CAPTURE);
- $text_stack[0] .= $parts[0];
- $token =& $parts[1];
- $text =& $parts[2];
-
- if (empty($token)) {
-
-
- while ($token_stack[0]) {
- $text_stack[1] .= array_shift($token_stack);
- $text_stack[0] .= array_shift($text_stack);
- }
- break;
- }
-
- $token_len = strlen($token);
- if ($tree_char_em) {
-
- if ($token_len == 3) {
-
- array_shift($token_stack);
- $span = array_shift($text_stack);
- $span = $this->runSpanGamut($span);
- $span = "<strong><em>$span</em></strong>";
- $text_stack[0] .= $this->hashPart($span);
- $em = '';
- $strong = '';
- } else {
-
-
- $token_stack[0] = str_repeat($token{0}, 3-$token_len);
- $tag = $token_len == 2 ? "strong" : "em";
- $span = $text_stack[0];
- $span = $this->runSpanGamut($span);
- $span = "<$tag>$span</$tag>";
- $text_stack[0] = $this->hashPart($span);
- $$tag = '';
- }
- $tree_char_em = false;
- } else if ($token_len == 3) {
- if ($em) {
-
-
- for ($i = 0; $i < 2; ++$i) {
- $shifted_token = array_shift($token_stack);
- $tag = strlen($shifted_token) == 2 ? "strong" : "em";
- $span = array_shift($text_stack);
- $span = $this->runSpanGamut($span);
- $span = "<$tag>$span</$tag>";
- $text_stack[0] .= $this->hashPart($span);
- $$tag = '';
- }
- } else {
-
-
- $em = $token{0};
- $strong = "$em$em";
- array_unshift($token_stack, $token);
- array_unshift($text_stack, '');
- $tree_char_em = true;
- }
- } else if ($token_len == 2) {
- if ($strong) {
-
- if (strlen($token_stack[0]) == 1) {
- $text_stack[1] .= array_shift($token_stack);
- $text_stack[0] .= array_shift($text_stack);
- }
-
- array_shift($token_stack);
- $span = array_shift($text_stack);
- $span = $this->runSpanGamut($span);
- $span = "<strong>$span</strong>";
- $text_stack[0] .= $this->hashPart($span);
- $strong = '';
- } else {
- array_unshift($token_stack, $token);
- array_unshift($text_stack, '');
- $strong = $token;
- }
- } else {
-
- if ($em) {
- if (strlen($token_stack[0]) == 1) {
-
- array_shift($token_stack);
- $span = array_shift($text_stack);
- $span = $this->runSpanGamut($span);
- $span = "<em>$span</em>";
- $text_stack[0] .= $this->hashPart($span);
- $em = '';
- } else {
- $text_stack[0] .= $token;
- }
- } else {
- array_unshift($token_stack, $token);
- array_unshift($text_stack, '');
- $em = $token;
- }
- }
- }
- return $text_stack[0];
- }
- protected function doBlockQuotes($text) {
- $text = preg_replace_callback('/
- ( # Wrap whole match in $1
- (?>
- ^[ ]*>[ ]? # ">" at the start of a line
- .+\n # rest of the first line
- (.+\n)* # subsequent consecutive lines
- \n* # blanks
- )+
- )
- /xm',
- array($this, '_doBlockQuotes_callback'), $text);
- return $text;
- }
- protected function _doBlockQuotes_callback($matches) {
- $bq = $matches[1];
-
- $bq = preg_replace('/^[ ]*>[ ]?|^[ ]+$/m', '', $bq);
- $bq = $this->runBlockGamut($bq);
- $bq = preg_replace('/^/m', " ", $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";
- }
- protected function _doBlockQuotes_callback2($matches) {
- $pre = $matches[1];
- $pre = preg_replace('/^ /m', '', $pre);
- return $pre;
- }
- protected function formParagraphs($text) {
-
-
-
-
-
- $text = preg_replace('/\A\n+|\n+\z/', '', $text);
- $grafs = preg_split('/\n{2,}/', $text, -1, PREG_SPLIT_NO_EMPTY);
-
-
-
- foreach ($grafs as $key => $value) {
- if (!preg_match('/^B\x1A[0-9]+B$/', $value)) {
-
- $value = $this->runSpanGamut($value);
- $value = preg_replace('/^([ ]*)/', "<p>", $value);
- $value .= "</p>";
- $grafs[$key] = $this->unhash($value);
- }
- else {
-
-
- $graf = $value;
- $block = $this->html_hashes[$graf];
- $graf = $block;
- $grafs[$key] = $graf;
- }
- }
- return implode("\n\n", $grafs);
- }
- protected function encodeAttribute($text) {
-
-
-
-
- $text = $this->encodeAmpsAndAngles($text);
- $text = str_replace('"', '"', $text);
- return $text;
- }
- protected function encodeURLAttribute($url, &$text = null) {
-
-
-
-
-
-
- if ($this->url_filter_func)
- $url = call_user_func($this->url_filter_func, $url);
- if (preg_match('{^mailto:}i', $url))
- $url = $this->encodeEntityObfuscatedAttribute($url, $text, 7);
- else if (preg_match('{^tel:}i', $url))
- {
- $url = $this->encodeAttribute($url);
- $text = substr($url, 4);
- }
- else
- {
- $url = $this->encodeAttribute($url);
- $text = $url;
- }
- return $url;
- }
-
-
- protected function encodeAmpsAndAngles($text) {
-
-
-
-
-
- if ($this->no_entities) {
- $text = str_replace('&', '&', $text);
- } else {
-
-
- $text = preg_replace('/&(?!#?[xX]?(?:[0-9a-fA-F]+|\w+);)/',
- '&', $text);
- }
-
- $text = str_replace('<', '<', $text);
- return $text;
- }
- protected function doAutoLinks($text) {
- $text = preg_replace_callback('{<((https?|ftp|dict|tel):[^\'">\s]+)>}i',
- array($this, '_doAutoLinks_url_callback'), $text);
-
- $text = preg_replace_callback('{
- <
- (?:mailto:)?
- (
- (?:
- [-!#$%&\'*+/=?^_`.{|}~\w\x80-\xFF]+
- |
- ".*?"
- )
- \@
- (?:
- [-a-z0-9\x80-\xFF]+(\.[-a-z0-9\x80-\xFF]+)*\.[a-z]+
- |
- \[[\d.a-fA-F:]+\] # IPv4 & IPv6
- )
- )
- >
- }xi',
- array($this, '_doAutoLinks_email_callback'), $text);
- return $text;
- }
- protected function _doAutoLinks_url_callback($matches) {
- $url = $this->encodeURLAttribute($matches[1], $text);
- $link = "<a href=\"$url\">$text</a>";
- return $this->hashPart($link);
- }
- protected function _doAutoLinks_email_callback($matches) {
- $addr = $matches[1];
- $url = $this->encodeURLAttribute("mailto:$addr", $text);
- $link = "<a href=\"$url\">$text</a>";
- return $this->hashPart($link);
- }
- protected function encodeEntityObfuscatedAttribute($text, &$tail = null, $head_length = 0) {
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
- if ($text == "") return $tail = "";
- $chars = preg_split('/(?<!^)(?!$)/', $text);
- $seed = (int)abs(crc32($text) / strlen($text));
- foreach ($chars as $key => $char) {
- $ord = ord($char);
-
- if ($ord < 128) {
- $r = ($seed * (1 + $key)) % 100;
-
-
-
- if ($r > 90 && strpos('@"&>', $char) === false) ;
- else if ($r < 45) $chars[$key] = '&#x'.dechex($ord).';';
- else $chars[$key] = '&#'.$ord.';';
- }
- }
- $text = implode('', $chars);
- $tail = $head_length ? implode('', array_slice($chars, $head_length)) : $text;
- return $text;
- }
- protected function parseSpan($str) {
-
-
-
-
- $output = '';
-
- $span_re = '{
- (
- \\\\'.$this->escape_chars_re.'
- |
- (?<![`\\\\])
- `+ # code span marker
- '.( $this->no_markup ? '' : '
- |
- <!-- .*? --> # comment
- |
- <\?.*?\?> | <%.*?%> # processing instruction
- |
- <[!$]?[-a-zA-Z0-9:_]+ # regular tags
- (?>
- \s
- (?>[^"\'>]+|"[^"]*"|\'[^\']*\')*
- )?
- >
- |
- <[-a-zA-Z0-9:_]+\s*/> # xml-style empty tag
- |
- </[-a-zA-Z0-9:_]+\s*> # closing tag
- ').'
- )
- }xs';
- while (1) {
-
-
-
-
-
- $parts = preg_split($span_re, $str, 2, PREG_SPLIT_DELIM_CAPTURE);
-
-
- if ($parts[0] != "") {
- $output .= $parts[0];
- }
-
-
- if (isset($parts[1])) {
- $output .= $this->handleSpanToken($parts[1], $parts[2]);
- $str = $parts[2];
- }
- else {
- break;
- }
- }
-
- return $output;
- }
-
-
- protected function handleSpanToken($token, &$str) {
-
-
-
-
- switch ($token{0}) {
- case "\\":
- return $this->hashPart("&#". ord($token{1}). ";");
- case "`":
-
- if (preg_match('/^(.*?[^`])'.preg_quote($token).'(?!`)(.*)$/sm',
- $str, $matches))
- {
- $str = $matches[2];
- $codespan = $this->makeCodeSpan($matches[1]);
- return $this->hashPart($codespan);
- }
- return $token;
- default:
- return $this->hashPart($token);
- }
- }
- protected function outdent($text) {
-
-
-
- return preg_replace('/^(\t|[ ]{1,'.$this->tab_width.'})/m', '', $text);
- }
-
-
- protected $utf8_strlen = 'mb_strlen';
-
- protected function detab($text) {
-
-
-
-
-
-
-
- $text = preg_replace_callback('/^.*\t.*$/m',
- array($this, '_detab_callback'), $text);
- return $text;
- }
- protected function _detab_callback($matches) {
- $line = $matches[0];
- $strlen = $this->utf8_strlen;
-
-
- $blocks = explode("\t", $line);
-
- $line = $blocks[0];
- unset($blocks[0]);
- foreach ($blocks as $block) {
-
- $amount = $this->tab_width -
- $strlen($line, 'UTF-8') % $this->tab_width;
- $line .= str_repeat(" ", $amount) . $block;
- }
- return $line;
- }
- protected function _initDetab() {
-
-
-
-
-
-
- if (function_exists($this->utf8_strlen)) return;
- $this->utf8_strlen = create_function('$text', 'return preg_match_all(
- "/[\\\\x00-\\\\xBF]|[\\\\xC0-\\\\xFF][\\\\x80-\\\\xBF]*/",
- $text, $m);');
- }
- protected function unhash($text) {
-
-
-
- return preg_replace_callback('/(.)\x1A[0-9]+\1/',
- array($this, '_unhash_callback'), $text);
- }
- protected function _unhash_callback($matches) {
- return $this->html_hashes[$matches[0]];
- }
- }
- abstract class _MarkdownExtra_TmpImpl extends \Michelf\Markdown {
-
-
- public $fn_id_prefix = "";
-
-
- public $fn_link_title = "";
- public $fn_backlink_title = "";
-
-
- public $fn_link_class = "footnote-ref";
- public $fn_backlink_class = "footnote-backref";
-
-
-
- public $table_align_class_tmpl = '';
-
- public $code_class_prefix = "";
-
-
- public $code_attr_on_pre = false;
-
-
- public $predef_abbr = array();
-
- public function __construct() {
-
-
-
-
-
- $this->escape_chars .= ':|';
-
-
-
- $this->document_gamut += array(
- "doFencedCodeBlocks" => 5,
- "stripFootnotes" => 15,
- "stripAbbreviations" => 25,
- "appendFootnotes" => 50,
- );
- $this->block_gamut += array(
- "doFencedCodeBlocks" => 5,
- "doTables" => 15,
- "doDefLists" => 45,
- );
- $this->span_gamut += array(
- "doFootnotes" => 5,
- "doAbbreviations" => 70,
- );
-
- parent::__construct();
- }
-
-
-
- protected $footnotes = array();
- protected $footnotes_ordered = array();
- protected $footnotes_ref_count = array();
- protected $footnotes_numbers = array();
- protected $abbr_desciptions = array();
- protected $abbr_word_re = '';
-
-
- protected $footnote_counter = 1;
-
-
- protected function setup() {
-
-
-
- parent::setup();
-
- $this->footnotes = array();
- $this->footnotes_ordered = array();
- $this->footnotes_ref_count = array();
- $this->footnotes_numbers = 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 .= '|';
- $this->abbr_word_re .= preg_quote($abbr_word);
- $this->abbr_desciptions[$abbr_word] = trim($abbr_desc);
- }
- }
-
- protected function teardown() {
-
-
-
- $this->footnotes = array();
- $this->footnotes_ordered = array();
- $this->footnotes_ref_count = array();
- $this->footnotes_numbers = array();
- $this->abbr_desciptions = array();
- $this->abbr_word_re = '';
-
- parent::teardown();
- }
-
-
-
-
- protected $id_class_attr_catch_re = '\{((?:[ ]*[#.a-z][-_:a-zA-Z0-9=]+){1,})[ ]*\}';
-
- protected $id_class_attr_nocatch_re = '\{(?:[ ]*[#.a-z][-_:a-zA-Z0-9=]+){1,}[ ]*\}';
- protected function doExtraAttributes($tag_name, $attr) {
-
-
-
-
-
-
- if (empty($attr)) return "";
-
-
- preg_match_all('/[#.a-z][-_:a-zA-Z0-9=]+/', $attr, $matches);
- $elements = $matches[0];
-
- $classes = array();
- $attributes = array();
- $id = false;
- foreach ($elements as $element) {
- if ($element{0} == '.') {
- $classes[] = substr($element, 1);
- } else if ($element{0} == '#') {
- if ($id === false) $id = substr($element, 1);
- } else if (strpos($element, '=') > 0) {
- $parts = explode('=', $element, 2);
- $attributes[] = $parts[0] . '="' . $parts[1] . '"';
- }
- }
-
- $attr_str = "";
- if (!empty($id)) {
- $attr_str .= ' id="'.$id.'"';
- }
- if (!empty($classes)) {
- $attr_str .= ' class="'.implode(" ", $classes).'"';
- }
- if (!$this->no_markup && !empty($attributes)) {
- $attr_str .= ' '.implode(" ", $attributes);
- }
- return $attr_str;
- }
- protected function stripLinkDefinitions($text) {
-
-
-
-
- $less_than_tab = $this->tab_width - 1;
-
- $text = preg_replace_callback('{
- ^[ ]{0,'.$less_than_tab.'}\[(.+)\][ ]?: # id = $1
- [ ]*
- \n? # maybe *one* newline
- [ ]*
- (?:
- <(.+?)> # url = $2
- |
- (\S+?) # url = $3
- )
- [ ]*
- \n? # maybe one newline
- [ ]*
- (?:
- (?<=\s) # lookbehind for whitespace
- ["(]
- (.*?) # title = $4
- [")]
- [ ]*
- )? # title is optional
- (?:[ ]* '.$this->id_class_attr_catch_re.' )? # $5 = extra id & class attr
- (?:\n+|\Z)
- }xm',
- array($this, '_stripLinkDefinitions_callback'),
- $text);
- return $text;
- }
- protected function _stripLinkDefinitions_callback($matches) {
- $link_id = strtolower($matches[1]);
- $url = $matches[2] == '' ? $matches[3] : $matches[2];
- $this->urls[$link_id] = $url;
- $this->titles[$link_id] =& $matches[4];
- $this->ref_attr[$link_id] = $this->doExtraAttributes("", $dummy =& $matches[5]);
- return '';
- }
-
-
-
- protected $block_tags_re = 'p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|address|form|fieldset|iframe|hr|legend|article|section|nav|aside|hgroup|header|footer|figcaption|figure';
-
-
- protected $context_block_tags_re = 'script|noscript|style|ins|del|iframe|object|source|track|param|math|svg|canvas|audio|video';
-
-
- protected $contain_span_tags_re = 'p|h[1-6]|li|dd|dt|td|th|legend|address';
-
-
-
- protected $clean_tags_re = 'script|style|math|svg';
-
-
- protected $auto_close_tags_re = 'hr|img|param|source|track';
-
- protected function hashHTMLBlocks($text) {
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
- if ($this->no_markup) return $text;
-
-
-
- list($text, ) = $this->_hashHTMLBlocks_inMarkdown($text);
-
- return $text;
- }
- protected function _hashHTMLBlocks_inMarkdown($text, $indent = 0,
- $enclosing_tag_re = '', $span = false)
- {
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
- if ($text === '') return array('', '');
-
- $newline_before_re = '/(?:^\n?|\n\n)*$/';
- $newline_after_re =
- '{
- ^ # Start of text following the tag.
- (?>[ ]*<!--.*?-->)? # Optional comment.
- [ ]*\n # Must be followed by newline.
- }xs';
-
-
- $block_tag_re =
- '{
- ( # $2: Capture whole tag.
- </? # Any opening or closing tag.
- (?> # Tag name.
- '.$this->block_tags_re.' |
- '.$this->context_block_tags_re.' |
- '.$this->clean_tags_re.' |
- (?!\s)'.$enclosing_tag_re.'
- )
- (?:
- (?=[\s"\'/a-zA-Z0-9]) # Allowed characters after tag name.
- (?>
- ".*?" | # Double quotes (can contain `>`)
- \'.*?\' | # Single quotes (can contain `>`)
- .+? # Anything but quotes and `>`.
- )*?
- )?
- > # End of tag.
- |
- <!-- .*? --> # HTML Comment
- |
- <\?.*?\?> | <%.*?%> # Processing instruction
- |
- <!\[CDATA\[.*?\]\]> # CData Block
- '. ( !$span ? ' # If not in span.
- |
- # Indented code block
- (?: ^[ ]*\n | ^ | \n[ ]*\n )
- [ ]{'.($indent+4).'}[^\n]* \n
- (?>
- (?: [ ]{'.($indent+4).'}[^\n]* | [ ]* ) \n
- )*
- |
- # Fenced code block marker
- (?<= ^ | \n )
- [ ]{0,'.($indent+3).'}(?:~{3,}|`{3,})
- [ ]*
- (?:
- \.?[-_:a-zA-Z0-9]+ # standalone class name
- |
- '.$this->id_class_attr_nocatch_re.' # extra attributes
- )?
- [ ]*
- (?= \n )
- ' : '' ). ' # End (if not is span).
- |
- # Code span marker
- # Note, this regex needs to go after backtick fenced
- # code blocks but it should also be kept outside of the
- # "if not in span" condition adding backticks to the parser
- `+
- )
- }xs';
-
- $depth = 0;
- $parsed = "";
-
-
-
-
- do {
-
-
-
-
-
-
- $parts = preg_split($block_tag_re, $text, 2,
- PREG_SPLIT_DELIM_CAPTURE);
-
-
-
- if ($span) {
- $void = $this->hashPart("", ':');
- $newline = "$void\n";
- $parts[0] = $void . str_replace("\n", $newline, $parts[0]) . $void;
- }
-
- $parsed .= $parts[0];
-
-
- if (count($parts) < 3) {
- $text = "";
- break;
- }
-
- $tag = $parts[1];
- $text = $parts[2];
- $tag_re = preg_quote($tag);
-
-
-
-
-
-
- if (preg_match('{^\n?([ ]{0,'.($indent+3).'})(~{3,}|`{3,})[ ]*(?:\.?[-_:a-zA-Z0-9]+|'.$this->id_class_attr_nocatch_re.')?[ ]*\n?$}', $tag, $capture)) {
-
- $fence_indent = strlen($capture[1]);
- $fence_re = $capture[2];
- if (preg_match('{^(?>.*\n)*?[ ]{'.($fence_indent).'}'.$fence_re.'[ ]*(?:\n|$)}', $text,
- $matches))
- {
-
- $parsed .= $tag . $matches[0];
- $text = substr($text, strlen($matches[0]));
- }
- else {
-
- $parsed .= $tag;
- }
- }
-
-
-
- else if ($tag{0} == "\n" || $tag{0} == " ") {
-
-
- $parsed .= $tag;
- }
-
-
-
-
- else if ($tag{0} == "`") {
-
- $tag_re = preg_quote($tag);
- if (preg_match('{^(?>.+?|\n(?!\n))*?(?<!`)'.$tag_re.'(?!`)}',
- $text, $matches))
- {
-
- $parsed .= $tag . $matches[0];
- $text = substr($text, strlen($matches[0]));
- }
- else {
-
- $parsed .= $tag;
- }
- }
-
-
-
-
-
- else if (preg_match('{^<(?:'.$this->block_tags_re.')\b}', $tag) ||
- ( preg_match('{^<(?:'.$this->context_block_tags_re.')\b}', $tag) &&
- preg_match($newline_before_re, $parsed) &&
- preg_match($newline_after_re, $text) )
- )
- {
-
- list($block_text, $text) =
- $this->_hashHTMLBlocks_inHTML($tag . $text, "hashBlock", true);
-
-
- $parsed .= "\n\n$block_text\n\n";
- }
-
-
-
-
- else if (preg_match('{^<(?:'.$this->clean_tags_re.')\b}', $tag) ||
- $tag{1} == '!' || $tag{1} == '?')
- {
-
-
- list($block_text, $text) =
- $this->_hashHTMLBlocks_inHTML($tag . $text, "hashClean", false);
-
- $parsed .= $block_text;
- }
-
-
-
- else if ($enclosing_tag_re !== '' &&
-
- preg_match('{^</?(?:'.$enclosing_tag_re.')\b}', $tag))
- {
-
-
-
- if ($tag{1} == '/') $depth--;
- else if ($tag{strlen($tag)-2} != '/') $depth++;
- if ($depth < 0) {
-
-
-
-
- $text = $tag . $text;
- break;
- }
-
- $parsed .= $tag;
- }
- else {
- $parsed .= $tag;
- }
- } while ($depth >= 0);
-
- return array($parsed, $text);
- }
- protected function _hashHTMLBlocks_inHTML($text, $hash_method, $md_attr) {
-
-
-
-
-
-
-
-
-
-
- if ($text === '') return array('', '');
-
-
- $markdown_attr_re = '
- {
- \s* # Eat whitespace before the `markdown` attribute
- markdown
- \s*=\s*
- (?>
- (["\']) # $1: quote delimiter
- (.*?) # $2: attribute value
- \1 # matching delimiter
- |
- ([^\s>]*) # $3: unquoted attribute value
- )
- () # $4: make $3 always defined (avoid warnings)
- }xs';
-
-
- $tag_re = '{
- ( # $2: Capture whole tag.
- </? # Any opening or closing tag.
- [\w:$]+ # Tag name.
- (?:
- (?=[\s"\'/a-zA-Z0-9]) # Allowed characters after tag name.
- (?>
- ".*?" | # Double quotes (can contain `>`)
- \'.*?\' | # Single quotes (can contain `>`)
- .+? # Anything but quotes and `>`.
- )*?
- )?
- > # End of tag.
- |
- <!-- .*? --> # HTML Comment
- |
- <\?.*?\?> | <%.*?%> # Processing instruction
- |
- <!\[CDATA\[.*?\]\]> # CData Block
- )
- }xs';
-
- $original_text = $text;
-
- $depth = 0;
- $block_text = "";
- $parsed = "";
-
-
-
-
- if (preg_match('/^<([\w:$]*)\b/', $text, $matches))
- $base_tag_name_re = $matches[1];
-
-
-
- do {
-
-
-
-
-
-
- $parts = preg_split($tag_re, $text, 2, PREG_SPLIT_DELIM_CAPTURE);
-
- if (count($parts) < 3) {
-
-
-
-
-
-
- return array($original_text{0}, substr($original_text, 1));
- }
-
- $block_text .= $parts[0];
- $tag = $parts[1];
- $text = $parts[2];
-
-
-
-
-
- if (preg_match('{^</?(?:'.$this->auto_close_tags_re.')\b}', $tag) ||
- $tag{1} == '!' || $tag{1} == '?')
- {
-
- $block_text .= $tag;
- }
- else {
-
-
-
-
- if (preg_match('{^</?'.$base_tag_name_re.'\b}', $tag)) {
- if ($tag{1} == '/') $depth--;
- else if ($tag{strlen($tag)-2} != '/') $depth++;
- }
-
-
-
-
- if ($md_attr &&
- preg_match($markdown_attr_re, $tag, $attr_m) &&
- preg_match('/^1|block|span$/', $attr_m[2] . $attr_m[3]))
- {
-
- $tag = preg_replace($markdown_attr_re, '', $tag);
-
-
- $this->mode = $attr_m[2] . $attr_m[3];
- $span_mode = $this->mode == 'span' || $this->mode != 'block' &&
- preg_match('{^<(?:'.$this->contain_span_tags_re.')\b}', $tag);
-
-
- if (preg_match('/(?:^|\n)( *?)(?! ).*?$/', $block_text, $matches)) {
- $strlen = $this->utf8_strlen;
- $indent = $strlen($matches[1], 'UTF-8');
- } else {
- $indent = 0;
- }
-
-
- $block_text .= $tag;
- $parsed .= $this->$hash_method($block_text);
-
-
-
- preg_match('/^<([\w:$]*)\b/', $tag, $matches);
- $tag_name_re = $matches[1];
-
-
- list ($block_text, $text)
- = $this->_hashHTMLBlocks_inMarkdown($text, $indent,
- $tag_name_re, $span_mode);
-
-
- if ($indent > 0) {
- $block_text = preg_replace("/^[ ]{1,$indent}/m", "",
- $block_text);
- }
-
-
- if (!$span_mode) $parsed .= "\n\n$block_text\n\n";
- else $parsed .= "$block_text";
-
-
- $block_text = "";
- }
- else $block_text .= $tag;
- }
-
- } while ($depth > 0);
-
-
-
-
- $parsed .= $this->$hash_method($block_text);
-
- return array($parsed, $text);
- }
- protected function hashClean($text) {
-
-
-
-
-
- return $this->hashPart($text, 'C');
- }
- protected function doAnchors($text) {
-
-
-
- if ($this->in_anchor) return $text;
- $this->in_anchor = true;
-
-
-
-
- $text = preg_replace_callback('{
- ( # wrap whole match in $1
- \[
- ('.$this->nested_brackets_re.') # link text = $2
- \]
- [ ]? # one optional space
- (?:\n[ ]*)? # one optional newline followed by spaces
- \[
- (.*?) # id = $3
- \]
- )
- }xs',
- array($this, '_doAnchors_reference_callback'), $text);
-
-
-
- $text = preg_replace_callback('{
- ( # wrap whole match in $1
- \[
- ('.$this->nested_brackets_re.') # link text = $2
- \]
- \( # literal paren
- [ \n]*
- (?:
- <(.+?)> # href = $3
- |
- ('.$this->nested_url_parenthesis_re.') # href = $4
- )
- [ \n]*
- ( # $5
- ([\'"]) # quote char = $6
- (.*?) # Title = $7
- \6 # matching quote
- [ \n]* # ignore any spaces/tabs between closing quote and )
- )? # title is optional
- \)
- (?:[ ]? '.$this->id_class_attr_catch_re.' )? # $8 = id/class attributes
- )
- }xs',
- array($this, '_doAnchors_inline_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 $text;
- }
- protected function _doAnchors_reference_callback($matches) {
- $whole_match = $matches[1];
- $link_text = $matches[2];
- $link_id =& $matches[3];
- if ($link_id == "") {
-
- $link_id = $link_text;
- }
-
-
- $link_id = strtolower($link_id);
- $link_id = preg_replace('{[ ]?\n}', ' ', $link_id);
- if (isset($this->urls[$link_id])) {
- $url = $this->urls[$link_id];
- $url = $this->encodeURLAttribute($url);
-
- $result = "<a href=\"$url\"";
- if ( isset( $this->titles[$link_id] ) ) {
- $title = $this->titles[$link_id];
- $title = $this->encodeAttribute($title);
- $result .= " title=\"$title\"";
- }
- if (isset($this->ref_attr[$link_id]))
- $result .= $this->ref_attr[$link_id];
-
- $link_text = $this->runSpanGamut($link_text);
- $result .= ">$link_text</a>";
- $result = $this->hashPart($result);
- }
- else {
- $result = $whole_match;
- }
- return $result;
- }
- protected function _doAnchors_inline_callback($matches) {
- $whole_match = $matches[1];
- $link_text = $this->runSpanGamut($matches[2]);
- $url = $matches[3] == '' ? $matches[4] : $matches[3];
- $title =& $matches[7];
- $attr = $this->doExtraAttributes("a", $dummy =& $matches[8]);
-
-
- $unhashed = $this->unhash($url);
- if ($unhashed != $url)
- $url = preg_replace('/^<(.*)>$/', '\1', $unhashed);
- $url = $this->encodeURLAttribute($url);
- $result = "<a href=\"$url\"";
- if (isset($title)) {
- $title = $this->encodeAttribute($title);
- $result .= " title=\"$title\"";
- }
- $result .= $attr;
-
- $link_text = $this->runSpanGamut($link_text);
- $result .= ">$link_text</a>";
- return $this->hashPart($result);
- }
- protected function doImages($text) {
-
-
-
-
-
-
- $text = preg_replace_callback('{
- ( # wrap whole match in $1
- !\[
- ('.$this->nested_brackets_re.') # alt text = $2
- \]
- [ ]? # one optional space
- (?:\n[ ]*)? # one optional newline followed by spaces
- \[
- (.*?) # id = $3
- \]
- )
- }xs',
- array($this, '_doImages_reference_callback'), $text);
-
-
-
-
- $text = preg_replace_callback('{
- ( # wrap whole match in $1
- !\[
- ('.$this->nested_brackets_re.') # alt text = $2
- \]
- \s? # One optional whitespace character
- \( # literal paren
- [ \n]*
- (?:
- <(\S*)> # src url = $3
- |
- ('.$this->nested_url_parenthesis_re.') # src url = $4
- )
- [ \n]*
- ( # $5
- ([\'"]) # quote char = $6
- (.*?) # title = $7
- \6 # matching quote
- [ \n]*
- )? # title is optional
- \)
- (?:[ ]? '.$this->id_class_attr_catch_re.' )? # $8 = id/class attributes
- )
- }xs',
- array($this, '_doImages_inline_callback'), $text);
- return $text;
- }
- protected function _doImages_reference_callback($matches) {
- $whole_match = $matches[1];
- $alt_text = $matches[2];
- $link_id = strtolower($matches[3]);
- if ($link_id == "") {
- $link_id = strtolower($alt_text);
- }
- $alt_text = $this->encodeAttribute($alt_text);
- if (isset($this->urls[$link_id])) {
- $url = $this->encodeURLAttribute($this->urls[$link_id]);
- $result = "<img src=\"$url\" alt=\"$alt_text\"";
- if (isset($this->titles[$link_id])) {
- $title = $this->titles[$link_id];
- $title = $this->encodeAttribute($title);
- $result .= " title=\"$title\"";
- }
- if (isset($this->ref_attr[$link_id]))
- $result .= $this->ref_attr[$link_id];
- $result .= $this->empty_element_suffix;
- $result = $this->hashPart($result);
- }
- else {
-
- $result = $whole_match;
- }
- return $result;
- }
- protected function _doImages_inline_callback($matches) {
- $whole_match = $matches[1];
- $alt_text = $matches[2];
- $url = $matches[3] == '' ? $matches[4] : $matches[3];
- $title =& $matches[7];
- $attr = $this->doExtraAttributes("img", $dummy =& $matches[8]);
- $alt_text = $this->encodeAttribute($alt_text);
- $url = $this->encodeURLAttribute($url);
- $result = "<img src=\"$url\" alt=\"$alt_text\"";
- if (isset($title)) {
- $title = $this->encodeAttribute($title);
- $result .= " title=\"$title\"";
- }
- $result .= $attr;
- $result .= $this->empty_element_suffix;
- return $this->hashPart($result);
- }
- protected function doHeaders($text) {
-
-
-
-
-
-
-
-
-
-
- $text = preg_replace_callback(
- '{
- (^.+?) # $1: Header text
- (?:[ ]+ '.$this->id_class_attr_catch_re.' )? # $3 = id/class attributes
- [ ]*\n(=+|-+)[ ]*\n+ # $3: Header footer
- }mx',
- array($this, '_doHeaders_callback_setext'), $text);
-
-
-
-
-
-
-
- $text = preg_replace_callback('{
- ^(\#{1,6}) # $1 = string of #\'s
- [ ]*
- (.+?) # $2 = Header text
- [ ]*
- \#* # optional closing #\'s (not counted)
- (?:[ ]+ '.$this->id_class_attr_catch_re.' )? # $3 = id/class attributes
- [ ]*
- \n+
- }xm',
- array($this, '_doHeaders_callback_atx'), $text);
- return $text;
- }
- protected function _doHeaders_callback_setext($matches) {
- if ($matches[3] == '-' && preg_match('{^- }', $matches[1]))
- return $matches[0];
- $level = $matches[3]{0} == '=' ? 1 : 2;
- $attr = $this->doExtraAttributes("h$level", $dummy =& $matches[2]);
- $block = "<h$level$attr>".$this->runSpanGamut($matches[1])."</h$level>";
- return "\n" . $this->hashBlock($block) . "\n\n";
- }
- protected function _doHeaders_callback_atx($matches) {
- $level = strlen($matches[1]);
- $attr = $this->doExtraAttributes("h$level", $dummy =& $matches[3]);
- $block = "<h$level$attr>".$this->runSpanGamut($matches[2])."</h$level>";
- return "\n" . $this->hashBlock($block) . "\n\n";
- }
- protected function doTables($text) {
-
-
-
- $less_than_tab = $this->tab_width - 1;
-
-
-
-
-
-
-
-
- $text = preg_replace_callback('
- {
- ^ # Start of a line
- [ ]{0,'.$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
-
- ( # $3: Cells
- (?>
- [ ]* # Allowed whitespace.
- [|] .* \n # Row content.
- )*
- )
- (?=\n|\Z) # Stop at final double newline.
- }xm',
- array($this, '_doTable_leadingPipe_callback'), $text);
-
-
-
-
-
-
-
-
-
- $text = preg_replace_callback('
- {
- ^ # Start of a line
- [ ]{0,'.$less_than_tab.'} # Allowed whitespace.
- (\S.*[|].*) \n # $1: Header row (at least one pipe)
-
- [ ]{0,'.$less_than_tab.'} # Allowed whitespace.
- ([-:]+[ ]*[|][-| :]*) \n # $2: Header underline
-
- ( # $3: Cells
- (?>
- .* [|] .* \n # Row content
- )*
- )
- (?=\n|\Z) # Stop at final double newline.
- }xm',
- array($this, '_DoTable_callback'), $text);
- return $text;
- }
- protected function _doTable_leadingPipe_callback($matches) {
- $head = $matches[1];
- $underline = $matches[2];
- $content = $matches[3];
-
-
- $content = preg_replace('/^ *[|]/m', '', $content);
-
- return $this->_doTable_callback(array($matches[0], $head, $underline, $content));
- }
- protected function _doTable_makeAlignAttr($alignname)
- {
- if (empty($this->table_align_class_tmpl))
- return " align=\"$alignname\"";
- $classname = str_replace('%%', $alignname, $this->table_align_class_tmpl);
- return " class=\"$classname\"";
- }
- protected function _doTable_callback($matches) {
- $head = $matches[1];
- $underline = $matches[2];
- $content = $matches[3];
-
- $head = preg_replace('/[|] *$/m', '', $head);
- $underline = preg_replace('/[|] *$/m', '', $underline);
- $content = preg_replace('/[|] *$/m', '', $content);
-
-
- $separators = preg_split('/ *[|] */', $underline);
- foreach ($separators as $n => $s) {
- if (preg_match('/^ *-+: *$/', $s))
- $attr[$n] = $this->_doTable_makeAlignAttr('right');
- else if (preg_match('/^ *:-+: *$/', $s))
- $attr[$n] = $this->_doTable_makeAlignAttr('center');
- else if (preg_match('/^ *:-+ *$/', $s))
- $attr[$n] = $this->_doTable_makeAlignAttr('left');
- else
- $attr[$n] = '';
- }
-
-
-
- $head = $this->parseSpan($head);
- $headers = preg_split('/ *[|] */', $head);
- $col_count = count($headers);
- $attr = array_pad($attr, $col_count, '');
-
-
- $text = "<table>\n";
- $text .= "<thead>\n";
- $text .= "<tr>\n";
- foreach ($headers as $n => $header)
- $text .= " <th$attr[$n]>".$this->runSpanGamut(trim($header))."</th>\n";
- $text .= "</tr>\n";
- $text .= "</thead>\n";
-
-
- $rows = explode("\n", trim($content, "\n"));
-
- $text .= "<tbody>\n";
- foreach ($rows as $row) {
-
-
- $row = $this->parseSpan($row);
-
-
- $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";
- $text .= "</tr>\n";
- }
- $text .= "</tbody>\n";
- $text .= "</table>";
-
- return $this->hashBlock($text) . "\n";
- }
-
- protected function doDefLists($text) {
-
-
-
- $less_than_tab = $this->tab_width - 1;
-
- $whole_list_re = '(?>
- ( # $1 = whole list
- ( # $2
- [ ]{0,'.$less_than_tab.'}
- ((?>.*\S.*\n)+) # $3 = defined term
- \n?
- [ ]{0,'.$less_than_tab.'}:[ ]+ # colon starting definition
- )
- (?s:.+?)
- ( # $4
- \z
- |
- \n{2,}
- (?=\S)
- (?! # Negative lookahead for another term
- [ ]{0,'.$less_than_tab.'}
- (?: \S.*\n )+? # defined term
- \n?
- [ ]{0,'.$less_than_tab.'}:[ ]+ # colon starting definition
- )
- (?! # Negative lookahead for another definition
- [ ]{0,'.$less_than_tab.'}:[ ]+ # colon starting definition
- )
- )
- )
- )';
- $text = preg_replace_callback('{
- (?>\A\n?|(?<=\n\n))
- '.$whole_list_re.'
- }mx',
- array($this, '_doDefLists_callback'), $text);
- return $text;
- }
- protected function _doDefLists_callback($matches) {
-
- $list = $matches[1];
-
-
-
- $result = trim($this->processDefListItems($list));
- $result = "<dl>\n" . $result . "\n</dl>";
- return $this->hashBlock($result) . "\n\n";
- }
- protected function processDefListItems($list_str) {
-
-
-
-
- $less_than_tab = $this->tab_width - 1;
-
-
- $list_str = preg_replace("/\n{2,}\\z/", "\n", $list_str);
-
- $list_str = preg_replace_callback('{
- (?>\A\n?|\n\n+) # leading line
- ( # definition terms = $1
- [ ]{0,'.$less_than_tab.'} # leading whitespace
- (?!\:[ ]|[ ]) # negative lookahead for a definition
- # mark (colon) or more whitespace.
- (?> \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);
-
- $list_str = preg_replace_callback('{
- \n(\n+)? # leading line = $1
- ( # marker space = $2
- [ ]{0,'.$less_than_tab.'} # whitespace before colon
- \:[ ]+ # definition mark (colon)
- )
- ((?s:.+?)) # definition text = $3
- (?= \n+ # stop at next definition mark,
- (?: # next term or end of text
- [ ]{0,'.$less_than_tab.'} \:[ ] |
- <dt> | \z
- )
- )
- }xm',
- array($this, '_processDefListItems_callback_dd'), $list_str);
- return $list_str;
- }
- protected function _processDefListItems_callback_dt($matches) {
- $terms = explode("\n", trim($matches[1]));
- $text = '';
- foreach ($terms as $term) {
- $term = $this->runSpanGamut(trim($term));
- $text .= "\n<dt>" . $term . "</dt>";
- }
- return $text . "\n";
- }
- protected function _processDefListItems_callback_dd($matches) {
- $leading_line = $matches[1];
- $marker_space = $matches[2];
- $def = $matches[3];
- if ($leading_line || preg_match('/\n{2,}/', $def)) {
-
- $def = str_repeat(' ', strlen($marker_space)) . $def;
- $def = $this->runBlockGamut($this->outdent($def . "\n\n"));
- $def = "\n". $def ."\n";
- }
- else {
- $def = rtrim($def);
- $def = $this->runSpanGamut($this->outdent($def));
- }
- return "\n<dd>" . $def . "</dd>\n";
- }
- protected function doFencedCodeBlocks($text) {
-
-
-
-
-
-
-
- $less_than_tab = $this->tab_width;
-
- $text = preg_replace_callback('{
- (?:\n|\A)
- # 1: Opening marker
- (
- (?:~{3,}|`{3,}) # 3 or more tildes/backticks.
- )
- [ ]*
- (?:
- \.?([-_:a-zA-Z0-9]+) # 2: standalone class name
- |
- '.$this->id_class_attr_catch_re.' # 3: Extra attributes
- )?
- [ ]* \n # Whitespace and newline following marker.
-
- # 4: Content
- (
- (?>
- (?!\1 [ ]* \n) # Not a closing marker.
- .*\n+
- )+
- )
-
- # Closing marker.
- \1 [ ]* (?= \n )
- }xm',
- array($this, '_doFencedCodeBlocks_callback'), $text);
- return $text;
- }
- protected function _doFencedCodeBlocks_callback($matches) {
- $classname =& $matches[2];
- $attrs =& $matches[3];
- $codeblock = $matches[4];
- $codeblock = htmlspecialchars($codeblock, ENT_NOQUOTES);
- $codeblock = preg_replace_callback('/^\n+/',
- array($this, '_doFencedCodeBlocks_newlines'), $codeblock);
- if ($classname != "") {
- if ($classname{0} == '.')
- $classname = substr($classname, 1);
- $attr_str = ' class="'.$this->code_class_prefix.$classname.'"';
- } else {
- $attr_str = $this->doExtraAttributes($this->code_attr_on_pre ? "pre" : "code", $attrs);
- }
- $pre_attr_str = $this->code_attr_on_pre ? $attr_str : '';
- $code_attr_str = $this->code_attr_on_pre ? '' : $attr_str;
- $codeblock = "<pre$pre_attr_str><code$code_attr_str>$codeblock</code></pre>";
-
- return "\n\n".$this->hashBlock($codeblock)."\n\n";
- }
- protected function _doFencedCodeBlocks_newlines($matches) {
- return str_repeat("<br$this->empty_element_suffix",
- strlen($matches[0]));
- }
-
-
-
-
- protected $em_relist = array(
- '' => '(?:(?<!\*)\*(?!\*)|(?<![a-zA-Z0-9_])_(?!_))(?![\.,:;]?\s)',
- '*' => '(?<![\s*])\*(?!\*)',
- '_' => '(?<![\s_])_(?![a-zA-Z0-9_])',
- );
- protected $strong_relist = array(
- '' => '(?:(?<!\*)\*\*(?!\*)|(?<![a-zA-Z0-9_])__(?!_))(?![\.,:;]?\s)',
- '**' => '(?<![\s*])\*\*(?!\*)',
- '__' => '(?<![\s_])__(?![a-zA-Z0-9_])',
- );
- protected $em_strong_relist = array(
- '' => '(?:(?<!\*)\*\*\*(?!\*)|(?<![a-zA-Z0-9_])___(?!_))(?![\.,:;]?\s)',
- '***' => '(?<![\s*])\*\*\*(?!\*)',
- '___' => '(?<![\s_])___(?![a-zA-Z0-9_])',
- );
- protected function formParagraphs($text) {
-
-
-
-
-
- $text = preg_replace('/\A\n+|\n+\z/', '', $text);
-
- $grafs = preg_split('/\n{2,}/', $text, -1, PREG_SPLIT_NO_EMPTY);
-
-
-
- foreach ($grafs as $key => $value) {
- $value = trim($this->runSpanGamut($value));
-
-
-
- $is_p = !preg_match('/^B\x1A[0-9]+B|^C\x1A[0-9]+C$/', $value);
-
- if ($is_p) {
- $value = "<p>$value</p>";
- }
- $grafs[$key] = $value;
- }
-
-
- $text = implode("\n\n", $grafs);
-
-
- $text = $this->unhash($text);
-
- return $text;
- }
-
-
-
-
- protected function stripFootnotes($text) {
-
-
-
-
- $less_than_tab = $this->tab_width - 1;
-
- $text = preg_replace_callback('{
- ^[ ]{0,'.$less_than_tab.'}\[\^(.+?)\][ ]?: # note_id = $1
- [ ]*
- \n? # maybe *one* newline
- ( # text = $2 (no blank lines allowed)
- (?:
- .+ # actual text
- |
- \n # newlines but
- (?!\[.+?\][ ]?:\s)# negative lookahead for footnote or link definition marker.
- (?!\n+[ ]{0,3}\S)# ensure line is not blank and followed
- # by non-indented content
- )*
- )
- }xm',
- array($this, '_stripFootnotes_callback'),
- $text);
- return $text;
- }
- protected function _stripFootnotes_callback($matches) {
- $note_id = $this->fn_id_prefix . $matches[1];
- $this->footnotes[$note_id] = $this->outdent($matches[2]);
- return '';
- }
- protected function doFootnotes($text) {
-
-
-
-
- if (!$this->in_anchor) {
- $text = preg_replace('{\[\^(.+?)\]}', "F\x1Afn:\\1\x1A:", $text);
- }
- return $text;
- }
-
- protected function appendFootnotes($text) {
-
-
-
- $text = preg_replace_callback('{F\x1Afn:(.*?)\x1A:}',
- array($this, '_appendFootnotes_callback'), $text);
-
- if (!empty($this->footnotes_ordered)) {
- $text .= "\n\n";
- $text .= "<div class=\"footnotes\">\n";
- $text .= "<hr". $this->empty_element_suffix ."\n";
- $text .= "<ol>\n\n";
- $attr = "";
- if ($this->fn_backlink_class != "") {
- $class = $this->fn_backlink_class;
- $class = $this->encodeAttribute($class);
- $attr .= " class=\"$class\"";
- }
- if ($this->fn_backlink_title != "") {
- $title = $this->fn_backlink_title;
- $title = $this->encodeAttribute($title);
- $attr .= " title=\"$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]);
- $ref_count = $this->footnotes_ref_count[$note_id];
- unset($this->footnotes_ref_count[$note_id]);
- unset($this->footnotes[$note_id]);
-
- $footnote .= "\n";
- $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);
-
- $backlink = "<a href=\"#fnref:$note_id\"$attr>↩</a>";
- for ($ref_num = 2; $ref_num <= $ref_count; ++$ref_num) {
- $backlink .= " <a href=\"#fnref$ref_num:$note_id\"$attr>↩</a>";
- }
-
- if (preg_match('{</p>$}', $footnote)) {
- $footnote = substr($footnote, 0, -4) . " $backlink</p>";
- } 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>";
- }
- return $text;
- }
- protected function _appendFootnotes_callback($matches) {
- $node_id = $this->fn_id_prefix . $matches[1];
-
-
-
- if (isset($this->footnotes[$node_id])) {
- $num =& $this->footnotes_numbers[$node_id];
- if (!isset($num)) {
-
-
- $this->footnotes_ordered[$node_id] = $this->footnotes[$node_id];
- $this->footnotes_ref_count[$node_id] = 1;
- $num = $this->footnote_counter++;
- $ref_count_mark = '';
- } else {
- $ref_count_mark = $this->footnotes_ref_count[$node_id] += 1;
- }
- $attr = "";
- if ($this->fn_link_class != "") {
- $class = $this->fn_link_class;
- $class = $this->encodeAttribute($class);
- $attr .= " class=\"$class\"";
- }
- if ($this->fn_link_title != "") {
- $title = $this->fn_link_title;
- $title = $this->encodeAttribute($title);
- $attr .= " title=\"$title\"";
- }
-
- $attr = str_replace("%%", $num, $attr);
- $node_id = $this->encodeAttribute($node_id);
-
- return
- "<sup id=\"fnref$ref_count_mark:$node_id\">".
- "<a href=\"#fn:$node_id\"$attr>$num</a>".
- "</sup>";
- }
-
- return "[^".$matches[1]."]";
- }
-
-
-
-
- protected function stripAbbreviations($text) {
-
-
-
- $less_than_tab = $this->tab_width - 1;
-
- $text = preg_replace_callback('{
- ^[ ]{0,'.$less_than_tab.'}\*\[(.+?)\][ ]?: # abbr_id = $1
- (.*) # text = $2 (no blank lines allowed)
- }xm',
- array($this, '_stripAbbreviations_callback'),
- $text);
- return $text;
- }
- protected function _stripAbbreviations_callback($matches) {
- $abbr_word = $matches[1];
- $abbr_desc = $matches[2];
- if ($this->abbr_word_re)
- $this->abbr_word_re .= '|';
- $this->abbr_word_re .= preg_quote($abbr_word);
- $this->abbr_desciptions[$abbr_word] = trim($abbr_desc);
- return '';
- }
-
-
- protected function doAbbreviations($text) {
-
-
-
- if ($this->abbr_word_re) {
-
-
- $text = preg_replace_callback('{'.
- '(?<![\w\x1A])'.
- '(?:'.$this->abbr_word_re.')'.
- '(?![\w\x1A])'.
- '}',
- array($this, '_doAbbreviations_callback'), $text);
- }
- return $text;
- }
- protected function _doAbbreviations_callback($matches) {
- $abbr = $matches[0];
- if (isset($this->abbr_desciptions[$abbr])) {
- $desc = $this->abbr_desciptions[$abbr];
- if (empty($desc)) {
- return $this->hashPart("<abbr>$abbr</abbr>");
- } else {
- $desc = $this->encodeAttribute($desc);
- return $this->hashPart("<abbr title=\"$desc\">$abbr</abbr>");
- }
- } else {
- return $matches[0];
- }
- }
- }
|