From c80837a9e6a1d5049a03fbb608b2b650c1b0f92d Mon Sep 17 00:00:00 2001 From: Klaus Weidenbach Date: Sun, 18 Mar 2018 02:13:05 +0100 Subject: :arrow_up: Update libraries. michelf/php-markdown (1.7.0 => 1.8.0) ezyang/htmlpurifier (v4.9.3 => v4.10.0) commerceguys/intl (v0.7.4 => v0.7.5) sabre/http (4.2.3 => v4.2.4) sabre/vobject (4.1.3 => 4.1.5) --- vendor/michelf/php-markdown/Michelf/Markdown.php | 190 ++++++++++++----------- 1 file changed, 102 insertions(+), 88 deletions(-) (limited to 'vendor/michelf/php-markdown/Michelf/Markdown.php') diff --git a/vendor/michelf/php-markdown/Michelf/Markdown.php b/vendor/michelf/php-markdown/Michelf/Markdown.php index c3eaf4464..e4c2c2361 100644 --- a/vendor/michelf/php-markdown/Michelf/Markdown.php +++ b/vendor/michelf/php-markdown/Michelf/Markdown.php @@ -4,7 +4,7 @@ * * @package php-markdown * @author Michel Fortin - * @copyright 2004-2016 Michel Fortin + * @copyright 2004-2018 Michel Fortin * @copyright (Original Markdown) 2004-2006 John Gruber */ @@ -18,7 +18,7 @@ class Markdown implements MarkdownInterface { * Define the package version * @var string */ - const MARKDOWNLIB_VERSION = "1.7.0"; + const MARKDOWNLIB_VERSION = "1.8.0"; /** * Simple function interface - Initialize the parser and return the result @@ -61,14 +61,14 @@ class Markdown implements MarkdownInterface { * @var int */ public $tab_width = 4; - + /** * Change to `true` to disallow markup or entities. * @var boolean */ public $no_markup = false; public $no_entities = false; - + /** * Change to `true` to enable line breaks on \n without two trailling spaces @@ -94,7 +94,7 @@ class Markdown implements MarkdownInterface { * @var callable */ public $header_id_func = null; - + /** * Optional function for converting code block content to HTML * @var callable @@ -111,7 +111,7 @@ class Markdown implements MarkdownInterface { * Class attribute to toggle "enhanced ordered list" behaviour * setting this to true will allow ordered lists to start from the index * number that is defined first. - * + * * For example: * 2. List item two * 3. List item three @@ -155,17 +155,17 @@ class Markdown implements MarkdownInterface { public function __construct() { $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); @@ -180,13 +180,19 @@ class Markdown implements MarkdownInterface { protected $urls = array(); protected $titles = array(); protected $html_hashes = array(); - + /** * Status flag to avoid invalid nesting. * @var boolean */ protected $in_anchor = false; - + + /** + * Status flag to avoid invalid nesting. + * @var boolean + */ + protected $in_emphasis_processing = false; + /** * Called before the transformation process starts to setup parser states. * @return void @@ -197,8 +203,9 @@ class Markdown implements MarkdownInterface { $this->titles = $this->predef_titles; $this->html_hashes = array(); $this->in_anchor = false; + $this->in_emphasis_processing = false; } - + /** * Called after the transformation process to clear any variable which may * be taking up memory unnecessarly. @@ -221,7 +228,7 @@ class Markdown implements MarkdownInterface { */ public function transform($text) { $this->setup(); - + # Remove UTF-8 BOM and marker character in input, if present. $text = preg_replace('{^\xEF\xBB\xBF|\x1A}', '', $text); @@ -248,7 +255,7 @@ class Markdown implements MarkdownInterface { foreach ($this->document_gamut as $method => $priority) { $text = $this->$method($text); } - + $this->teardown(); return $text . "\n"; @@ -271,7 +278,7 @@ class Markdown implements MarkdownInterface { * @return string */ protected function stripLinkDefinitions($text) { - + $less_than_tab = $this->tab_width - 1; // Link defs are in the form: ^[id]: url "optional title" @@ -338,8 +345,8 @@ class Markdown implements MarkdownInterface { * for is 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; */ @@ -363,7 +370,7 @@ class Markdown implements MarkdownInterface { | \'[^\']*\' # text inside single quotes (tolerate ">") )* - )? + )? '; $content = str_repeat(' @@ -380,7 +387,7 @@ class Markdown implements MarkdownInterface { str_repeat(' # closing nested tag ) - | + | <(?!/\2\s*> # other tags with a different name ) )*', @@ -409,9 +416,9 @@ class Markdown implements MarkdownInterface { ) ( # save in $1 - # Match from `\n` to `\n`, handling nested tags + # Match from `\n` to `\n`, handling nested tags # in between. - + [ ]{0,'.$less_than_tab.'} <('.$block_tags_b_re.')# start tag = $2 '.$attr.'> # attributes followed by > and \n @@ -429,28 +436,28 @@ class Markdown implements MarkdownInterface { # the matching end tag [ ]* # trailing spaces/tabs (?=\n+|\Z) # followed by a newline or end of document - - | # Special case just for
. It was easier to make a special + + | # Special case just for
. 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,'.$less_than_tab.'} (?s: ) [ ]* (?=\n{2,}|\Z) # followed by a blank line or end of document - + | # PHP and ASP-style processor instructions (hashBlock($text); return "\n\n$key\n\n"; } - + /** - * 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. * @@ -498,7 +505,7 @@ class Markdown implements MarkdownInterface { // 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; @@ -531,10 +538,10 @@ class Markdown implements MarkdownInterface { /** * 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. * * @param string $text @@ -546,7 +553,7 @@ class Markdown implements MarkdownInterface { } /** - * Run block gamut tranformations, without hashing HTML blocks. This is + * Run block gamut tranformations, without hashing HTML blocks. This is * useful when HTML blocks are known to be already hashed, like in the first * whole-document pass. * @@ -554,11 +561,11 @@ class Markdown implements MarkdownInterface { * @return string */ protected function runBasicBlockGamut($text) { - + foreach ($this->block_gamut as $method => $priority) { $text = $this->$method($text); } - + // Finally form paragraph and restore hashed blocks. $text = $this->formParagraphs($text); @@ -582,7 +589,7 @@ class Markdown implements MarkdownInterface { [ ]* # Tailing spaces $ # End of line. }mx', - "\n".$this->hashBlock("empty_element_suffix")."\n", + "\n".$this->hashBlock("empty_element_suffix")."\n", $text ); } @@ -629,10 +636,10 @@ class Markdown implements MarkdownInterface { */ protected function doHardBreaks($text) { if ($this->hard_wrap) { - return preg_replace_callback('/ *\n/', + return preg_replace_callback('/ *\n/', array($this, '_doHardBreaks_callback'), $text); } else { - return preg_replace_callback('/ {2,}\n/', + return preg_replace_callback('/ {2,}\n/', array($this, '_doHardBreaks_callback'), $text); } } @@ -656,7 +663,7 @@ class Markdown implements MarkdownInterface { return $text; } $this->in_anchor = true; - + // First, handle reference-style links: [link text] [id] $text = preg_replace_callback('{ ( # wrap whole match in $1 @@ -729,7 +736,7 @@ class Markdown implements MarkdownInterface { // 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}', ' ', $link_id); @@ -737,14 +744,14 @@ class Markdown implements MarkdownInterface { if (isset($this->urls[$link_id])) { $url = $this->urls[$link_id]; $url = $this->encodeURLAttribute($url); - + $result = "titles[$link_id] ) ) { $title = $this->titles[$link_id]; $title = $this->encodeAttribute($title); $result .= " title=\"$title\""; } - + $link_text = $this->runSpanGamut($link_text); $result .= ">$link_text"; $result = $this->hashPart($result); @@ -779,7 +786,7 @@ class Markdown implements MarkdownInterface { $title = $this->encodeAttribute($title); $result .= " title=\"$title\""; } - + $link_text = $this->runSpanGamut($link_text); $result .= ">$link_text"; @@ -807,7 +814,7 @@ class Markdown implements MarkdownInterface { \] ) - }xs', + }xs', array($this, '_doImages_reference_callback'), $text); // Next, handle inline images: ![alt text](url "optional title") @@ -906,7 +913,7 @@ class Markdown implements MarkdownInterface { * Setext-style headers: * Header 1 * ======== - * + * * Header 2 * -------- */ @@ -944,7 +951,7 @@ class Markdown implements MarkdownInterface { if ($matches[2] == '-' && preg_match('{^-(?: |$)}', $matches[1])) { return $matches[0]; } - + $level = $matches[2]{0} == '=' ? 1 : 2; // ID attribute generation @@ -977,7 +984,7 @@ class Markdown implements MarkdownInterface { * @param string $headerValue * @return string */ - protected function _generateIdFromHeaderValue($headerValue) { + protected function _generateIdFromHeaderValue($headerValue) { if (!is_callable($this->header_id_func)) { return ""; } @@ -1035,10 +1042,10 @@ class Markdown implements MarkdownInterface { ) ) '; // 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('{ ^ @@ -1132,7 +1139,7 @@ class Markdown implements MarkdownInterface { * 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: @@ -1166,7 +1173,7 @@ class Markdown implements MarkdownInterface { $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 @@ -1273,7 +1280,7 @@ class Markdown implements MarkdownInterface { * @var array */ protected $em_strong_prepared_relist; - + /** * Prepare regular expressions for searching emphasis tokens in any * context. @@ -1289,7 +1296,7 @@ class Markdown implements MarkdownInterface { } $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"] = $token_re; @@ -1303,24 +1310,29 @@ class Markdown implements MarkdownInterface { * @return string */ protected function doItalicsAndBold($text) { + if ($this->in_emphasis_processing) { + return $text; // avoid reentrency + } + $this->in_emphasis_processing = true; + $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 search 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. @@ -1330,7 +1342,7 @@ class Markdown implements MarkdownInterface { } break; } - + $token_len = strlen($token); if ($tree_char_em) { // Reached closing marker while inside a three-char emphasis. @@ -1369,7 +1381,7 @@ class Markdown implements MarkdownInterface { $$tag = ''; // $$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$em"; @@ -1383,6 +1395,7 @@ class Markdown implements MarkdownInterface { if (strlen($token_stack[0]) == 1) { $text_stack[1] .= array_shift($token_stack); $text_stack[0] .= array_shift($text_stack); + $em = ''; } // Closing strong marker: array_shift($token_stack); @@ -1417,6 +1430,7 @@ class Markdown implements MarkdownInterface { } } } + $this->in_emphasis_processing = false; return $text_stack[0]; } @@ -1453,9 +1467,9 @@ class Markdown implements MarkdownInterface { $bq = $this->runBlockGamut($bq); // recurse $bq = preg_replace('/^/m', " ", $bq); - // These leading spaces cause problem with 
 content, 
+		// These leading spaces cause problem with 
 content,
 		// so we need to fix that:
-		$bq = preg_replace_callback('{(\s*
.+?
)}sx', 
+		$bq = preg_replace_callback('{(\s*
.+?
)}sx',
 			array($this, '_doBlockQuotes_callback2'), $bq);
 
 		return "\n" . $this->hashBlock("
\n$bq\n
") . "\n\n";
@@ -1525,7 +1539,7 @@ class Markdown implements MarkdownInterface {
 //					// 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);
@@ -1582,9 +1596,9 @@ class Markdown implements MarkdownInterface {
 
 		return $url;
 	}
-	
+
 	/**
-	 * 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.
 	 * @param  string $text
@@ -1596,7 +1610,7 @@ class Markdown implements MarkdownInterface {
 		} else {
 			// Ampersand-encoding based entirely on Nat Irons's Amputator
 			// MT plugin: 
-			$text = preg_replace('/&(?!#?[xX]?(?:[0-9a-fA-F]+|\w+);)/', 
+			$text = preg_replace('/&(?!#?[xX]?(?:[0-9a-fA-F]+|\w+);)/',
 								'&', $text);
 		}
 		// Encode remaining <'s
@@ -1724,7 +1738,7 @@ class Markdown implements MarkdownInterface {
 	 */
 	protected function parseSpan($str) {
 		$output = '';
-		
+
 		$span_re = '{
 				(
 					\\\\'.$this->escape_chars_re.'
@@ -1752,16 +1766,16 @@ class Markdown implements MarkdownInterface {
 				}xs';
 
 		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]);
@@ -1770,7 +1784,7 @@ class Markdown implements MarkdownInterface {
 				break;
 			}
 		}
-		
+
 		return $output;
 	}
 
@@ -1787,7 +1801,7 @@ class Markdown implements MarkdownInterface {
 				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];
@@ -1823,11 +1837,11 @@ class Markdown implements MarkdownInterface {
 	 * For each line we separate the line in blocks delemited by tab characters.
 	 * Then we reconstruct every line by adding the  appropriate number of space
 	 * between each blocks.
-	 * 
+	 *
 	 * @param  string $text
 	 * @return string
 	 */
-	protected function detab($text) {	
+	protected function detab($text) {
 		$text = preg_replace_callback('/^.*\t.*$/m',
 			array($this, '_detab_callback'), $text);
 
@@ -1842,7 +1856,7 @@ class Markdown implements MarkdownInterface {
 	protected function _detab_callback($matches) {
 		$line = $matches[0];
 		$strlen = $this->utf8_strlen; // strlen function for UTF-8.
-		
+
 		// Split in blocks.
 		$blocks = explode("\t", $line);
 		// Add each blocks to the line.
@@ -1850,7 +1864,7 @@ class Markdown implements MarkdownInterface {
 		unset($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;
 		}
@@ -1859,20 +1873,20 @@ class Markdown implements MarkdownInterface {
 
 	/**
 	 * 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.
 	 * @return void
 	 */
 	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);');
+		$this->utf8_strlen = function($text) {
+			return preg_match_all('/[\x00-\xBF]|[\xC0-\xFF][\x80-\xBF]*/', $text, $m);
+		};
 	}
 
 	/**
@@ -1881,7 +1895,7 @@ class Markdown implements MarkdownInterface {
 	 * @return string
 	 */
 	protected function unhash($text) {
-		return preg_replace_callback('/(.)\x1A[0-9]+\1/', 
+		return preg_replace_callback('/(.)\x1A[0-9]+\1/',
 			array($this, '_unhash_callback'), $text);
 	}
 
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