X-Git-Url: https://scripts.mit.edu/gitweb/autoinstalls/wordpress.git/blobdiff_plain/874d2a2f468a0d1e69aab49b1fe2d9d79d3e1142..5d244c8fd9a27c9f89dd08da2af6fbc67d4fce63:/wp-includes/formatting.php

diff --git a/wp-includes/formatting.php b/wp-includes/formatting.php
index e79043bc..7bd354af 100644
--- a/wp-includes/formatting.php
+++ b/wp-includes/formatting.php
@@ -11,13 +11,13 @@
  * Replaces common plain text characters into formatted entities
  *
  * As an example,
- * <code>
- * 'cause today's effort makes it worth tomorrow's "holiday"...
- * </code>
+ *
+ *     'cause today's effort makes it worth tomorrow's "holiday" ...
+ *
  * Becomes:
- * <code>
- * &#8217;cause today&#8217;s effort makes it worth tomorrow&#8217;s &#8220;holiday&#8221;&#8230;
- * </code>
+ *
+ *     &#8217;cause today&#8217;s effort makes it worth tomorrow&#8217;s &#8220;holiday&#8221; &#8230;
+ *
  * Code within certain html blocks are skipped.
  *
  * @since 0.71
@@ -215,26 +215,30 @@ function wptexturize($text, $reset = false) {
 		.     '-(?!->)' // Dash not followed by end of comment.
 		.     '[^\-]*+' // Consume non-dashes.
 		. ')*+'         // Loop possessively.
-		. '-->';        // End of comment.
-
-	$regex =  '/('			// Capture the entire match.
-		.	'<'		// Find start of element.
-		.	'(?(?=!--)'	// Is this a comment?
-		.		$comment_regex	// Find end of comment
-		.	'|'
-		.		'[^>]+>'	// Find end of element
-		.	')'
+		. '(?:-->)?';   // End of comment. If not found, match all input.
+
+	$shortcode_regex =
+		  '\['              // Find start of shortcode.
+		. '[\/\[]?'         // Shortcodes may begin with [/ or [[
+		. $tagregexp        // Only match registered shortcodes, because performance.
+		. '(?:'
+		.     '[^\[\]<>]+'  // Shortcodes do not contain other shortcodes. Quantifier critical.
 		. '|'
-		.	'\['		// Find start of shortcode.
-		.	'[\/\[]?'	// Shortcodes may begin with [/ or [[
-		.	$tagregexp	// Only match registered shortcodes, because performance.
-		.	'(?:'
-		.		'[^\[\]<>]+'	// Shortcodes do not contain other shortcodes. Quantifier critical.
-		.	'|'
-		.		'<[^\[\]>]*>' 	// HTML elements permitted. Prevents matching ] before >.
-		.	')*+'		// Possessive critical.
-		.	'\]'		// Find end of shortcode.
-		.	'\]?'		// Shortcodes may end with ]]
+		.     '<[^\[\]>]*>' // HTML elements permitted. Prevents matching ] before >.
+		. ')*+'             // Possessive critical.
+		. '\]'              // Find end of shortcode.
+		. '\]?';            // Shortcodes may end with ]]
+
+	$regex =
+		  '/('                   // Capture the entire match.
+		.     '<'                // Find start of element.
+		.     '(?(?=!--)'        // Is this a comment?
+		.         $comment_regex // Find end of comment.
+		.     '|'
+		.         '[^>]+>'       // Find end of element.
+		.     ')'
+		. '|'
+		.     $shortcode_regex   // Find shortcodes.
 		. ')/s';
 
 	$textarr = preg_split( $regex, $text, -1, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY );
@@ -242,30 +246,31 @@ function wptexturize($text, $reset = false) {
 	foreach ( $textarr as &$curl ) {
 		// Only call _wptexturize_pushpop_element if $curl is a delimiter.
 		$first = $curl[0];
-		if ( '<' === $first && '>' === substr( $curl, -1 ) ) {
-			// This is an HTML delimiter.
+		if ( '<' === $first && '<!--' === substr( $curl, 0, 4 ) ) {
+			// This is an HTML comment delimeter.
 
-			if ( '<!--' !== substr( $curl, 0, 4 ) ) {
-				_wptexturize_pushpop_element( $curl, $no_texturize_tags_stack, $no_texturize_tags );
-			}
+			continue;
+
+		} elseif ( '<' === $first && '>' === substr( $curl, -1 ) ) {
+			// This is an HTML element delimiter.
+
+			_wptexturize_pushpop_element( $curl, $no_texturize_tags_stack, $no_texturize_tags );
 
 		} elseif ( '' === trim( $curl ) ) {
 			// This is a newline between delimiters.  Performance improves when we check this.
 
 			continue;
 
-		} elseif ( '[' === $first && 1 === preg_match( '/^\[\/?' . $tagregexp . '(?:[^\[\]<>]+|<[^\[\]>]*>)*+\]$/', $curl ) ) {
+		} elseif ( '[' === $first && 1 === preg_match( '/^' . $shortcode_regex . '$/', $curl ) ) {
 			// This is a shortcode delimiter.
 
-			_wptexturize_pushpop_element( $curl, $no_texturize_shortcodes_stack, $no_texturize_shortcodes );
-
-		} elseif ( '[' === $first && 1 === preg_match( '/^\[[\/\[]?' . $tagregexp . '(?:[^\[\]<>]+|<[^\[\]>]*>)*+\]\]?$/', $curl ) ) {
-			// This is an escaped shortcode delimiter.
-
-			// Do not texturize.
-			// Do not push to the shortcodes stack.
-
-			continue;
+			if ( '[[' !== substr( $curl, 0, 2 ) && ']]' !== substr( $curl, -2 ) ) {
+				// Looks like a normal shortcode.
+				_wptexturize_pushpop_element( $curl, $no_texturize_shortcodes_stack, $no_texturize_shortcodes );
+			} else {
+				// Looks like an escaped shortcode.
+				continue;
+			}
 
 		} elseif ( empty( $no_texturize_shortcodes_stack ) && empty( $no_texturize_tags_stack ) ) {
 			// This is neither a delimiter, nor is this content inside of no_texturize pairs.  Do texturize.
@@ -283,9 +288,9 @@ function wptexturize($text, $reset = false) {
 			}
 
 			// 9x9 (times), but never 0x9999
-			if ( 1 === preg_match( '/(?<=\d)x-?\d/', $curl ) ) {
+			if ( 1 === preg_match( '/(?<=\d)x\d/', $curl ) ) {
 				// Searching for a digit is 10 times more expensive than for the x, so we avoid doing this one!
-				$curl = preg_replace( '/\b(\d(?(?<=0)[\d\.,]+|[\d\.,]*))x(-?\d[\d\.,]*)\b/', '$1&#215;$2', $curl );
+				$curl = preg_replace( '/\b(\d(?(?<=0)[\d\.,]+|[\d\.,]*))x(\d[\d\.,]*)\b/', '$1&#215;$2', $curl );
 			}
 		}
 	}
@@ -307,7 +312,7 @@ function wptexturize($text, $reset = false) {
  * @since 2.9.0
  * @access private
  *
- * @param string $text Text to check. Must be a tag like <html> or [shortcode].
+ * @param string $text Text to check. Must be a tag like `<html>` or `[shortcode]`.
  * @param array $stack List of open tag elements.
  * @param array $disabled_elements The tag names to match against. Spaces are not allowed in tag names.
  */
@@ -326,7 +331,7 @@ function _wptexturize_pushpop_element($text, &$stack, $disabled_elements) {
 
 	// Parse out the tag name.
 	$space = strpos( $text, ' ' );
-	if ( FALSE === $space ) {
+	if ( false === $space ) {
 		$space = -1;
 	} else {
 		$space -= $name_offset;
@@ -475,7 +480,7 @@ function _autop_newline_preservation_helper( $matches ) {
 /**
  * Don't auto-p wrap shortcodes that stand alone
  *
- * Ensures that shortcodes are not wrapped in <<p>>...<</p>>.
+ * Ensures that shortcodes are not wrapped in `<p>...</p>`.
  *
  * @since 2.9.0
  *
@@ -572,7 +577,7 @@ function seems_utf8($str) {
  * @access private
  *
  * @param string $string The text which is to be encoded.
- * @param mixed $quote_style Optional. Converts double quotes if set to ENT_COMPAT, both single and double if set to ENT_QUOTES or none if set to ENT_NOQUOTES. Also compatible with old values; converting single quotes if set to 'single', double if set to 'double' or both if otherwise set. Default is ENT_NOQUOTES.
+ * @param int $quote_style Optional. Converts double quotes if set to ENT_COMPAT, both single and double if set to ENT_QUOTES or none if set to ENT_NOQUOTES. Also compatible with old values; converting single quotes if set to 'single', double if set to 'double' or both if otherwise set. Default is ENT_NOQUOTES.
  * @param string $charset Optional. The character encoding of the string. Default is false.
  * @param boolean $double_encode Optional. Whether to encode existing html entities. Default is false.
  * @return string The encoded text with HTML entities.
@@ -1067,10 +1072,10 @@ function sanitize_file_name( $filename ) {
 	 */
 	$special_chars = apply_filters( 'sanitize_file_name_chars', $special_chars, $filename_raw );
 	$filename = preg_replace( "#\x{00a0}#siu", ' ', $filename );
-	$filename = str_replace($special_chars, '', $filename);
+	$filename = str_replace( $special_chars, '', $filename );
 	$filename = str_replace( array( '%20', '+' ), '-', $filename );
-	$filename = preg_replace('/[\s-]+/', '-', $filename);
-	$filename = trim($filename, '.-_');
+	$filename = preg_replace( '/[\r\n\t -]+/', '-', $filename );
+	$filename = trim( $filename, '.-_' );
 
 	// Split the filename into a base and extension[s]
 	$parts = explode('.', $filename);
@@ -1229,7 +1234,6 @@ function sanitize_title( $title, $fallback_title = '', $context = 'save' ) {
  * Used for querying the database for a value from URL.
  *
  * @since 3.1.0
- * @uses sanitize_title()
  *
  * @param string $title The string to be sanitized.
  * @return string The sanitized string.
@@ -1305,21 +1309,23 @@ function sanitize_title_with_dashes( $title, $raw_title = '', $context = 'displa
 }
 
 /**
- * Ensures a string is a valid SQL order by clause.
+ * Ensures a string is a valid SQL 'order by' clause.
+ *
+ * Accepts one or more columns, with or without a sort order (ASC / DESC).
+ * e.g. 'column_1', 'column_1, column_2', 'column_1 ASC, column_2 DESC' etc.
  *
- * Accepts one or more columns, with or without ASC/DESC, and also accepts
- * RAND().
+ * Also accepts 'RAND()'.
  *
  * @since 2.5.1
  *
- * @param string $orderby Order by string to be checked.
- * @return string|bool Returns the order by clause if it is a match, false otherwise.
+ * @param string $orderby Order by clause to be validated.
+ * @return string|bool Returns $orderby if valid, false otherwise.
  */
-function sanitize_sql_orderby( $orderby ){
-	preg_match('/^\s*([a-z0-9_]+(\s+(ASC|DESC))?(\s*,\s*|\s*$))+|^\s*RAND\(\s*\)\s*$/i', $orderby, $obmatches);
-	if ( !$obmatches )
-		return false;
-	return $orderby;
+function sanitize_sql_orderby( $orderby ) {
+	if ( preg_match( '/^\s*(([a-z0-9_]+|`[a-z0-9_]+`)(\s+(ASC|DESC))?\s*(,\s*(?=[a-z0-9_`])|$))+$/i', $orderby ) || preg_match( '/^\s*RAND\(\s*\)\s*$/i', $orderby ) ) {
+		return $orderby;
+	}
+	return false;
 }
 
 /**
@@ -1362,7 +1368,7 @@ function sanitize_html_class( $class, $fallback = '' ) {
 /**
  * Converts a number of characters from a string.
  *
- * Metadata tags <<title>> and <<category>> are removed, <<br>> and <<hr>> are
+ * Metadata tags `<title>` and `<category>` are removed, `<br>` and `<hr>` are
  * converted into correct XHTML and Unicode characters are converted to the
  * valid range.
  *
@@ -1931,19 +1937,17 @@ function make_clickable( $text ) {
  *
  * Input string must have no null characters (or eventual transformations on output chunks must not care about null characters)
  *
- * <code>
- * _split_str_by_whitespace( "1234 67890 1234 67890a cd 1234   890 123456789 1234567890a    45678   1 3 5 7 90 ", 10 ) ==
- * array (
- *   0 => '1234 67890 ',  // 11 characters: Perfect split
- *   1 => '1234 ',        //  5 characters: '1234 67890a' was too long
- *   2 => '67890a cd ',   // 10 characters: '67890a cd 1234' was too long
- *   3 => '1234   890 ',  // 11 characters: Perfect split
- *   4 => '123456789 ',   // 10 characters: '123456789 1234567890a' was too long
- *   5 => '1234567890a ', // 12 characters: Too long, but no inner whitespace on which to split
- *   6 => '   45678   ',  // 11 characters: Perfect split
- *   7 => '1 3 5 7 9',    //  9 characters: End of $string
- * );
- * </code>
+ *     _split_str_by_whitespace( "1234 67890 1234 67890a cd 1234   890 123456789 1234567890a    45678   1 3 5 7 90 ", 10 ) ==
+ *     array (
+ *         0 => '1234 67890 ',  // 11 characters: Perfect split
+ *         1 => '1234 ',        //  5 characters: '1234 67890a' was too long
+ *         2 => '67890a cd ',   // 10 characters: '67890a cd 1234' was too long
+ *         3 => '1234   890 ',  // 11 characters: Perfect split
+ *         4 => '123456789 ',   // 10 characters: '123456789 1234567890a' was too long
+ *         5 => '1234567890a ', // 12 characters: Too long, but no inner whitespace on which to split
+ *         6 => '   45678   ',  // 11 characters: Perfect split
+ *         7 => '1 3 5 7 90 ',  // 11 characters: End of $string
+ *     );
  *
  * @since 3.4.0
  * @access private
@@ -2017,7 +2021,7 @@ function wp_rel_nofollow_callback( $matches ) {
  *
  * Callback handler for {@link convert_smilies()}.
  * Looks up one smiley code in the $wpsmiliestrans global array and returns an
- * <img> string for that smiley.
+ * `<img>` string for that smiley.
  *
  * @global array $wpsmiliestrans
  * @since 2.8.0
@@ -2217,7 +2221,7 @@ function wp_iso_descrambler($string) {
  * @access private
  *
  * @param array $match The preg_replace_callback matches array
- * @return array Converted chars
+ * @return string Converted chars
  */
 function _wp_iso_convert( $match ) {
 	return chr( hexdec( strtolower( $match[1] ) ) );
@@ -2233,7 +2237,6 @@ function _wp_iso_convert( $match ) {
  *
  * @since 1.2.0
  *
- * @uses get_option() to retrieve the value of 'gmt_offset'.
  * @param string $string The date to be converted.
  * @param string $format The format string for the returned date (default is Y-m-d H:i:s)
  * @return string GMT version of the date provided.
@@ -3026,8 +3029,6 @@ function esc_sql( $data ) {
  * is applied to the returned cleaned URL.
  *
  * @since 2.8.0
- * @uses wp_kses_bad_protocol() To only permit protocols in the URL set
- *		via $protocols or the common ones set in the function.
  *
  * @param string $url The URL to be cleaned.
  * @param array $protocols Optional. An array of acceptable protocols.
@@ -3085,7 +3086,6 @@ function esc_url( $url, $protocols = null, $_context = 'display' ) {
  * Performs esc_url() for database usage.
  *
  * @since 2.8.0
- * @uses esc_url()
  *
  * @param string $url The URL to be cleaned.
  * @param array $protocols An array of acceptable protocols.
@@ -3242,12 +3242,13 @@ function tag_escape($tag_name) {
  * beginning, so it isn't a true relative link, but from the web root base.
  *
  * @since 2.1.0
+ * @since 4.1.0 Support was added for relative URLs.
  *
  * @param string $link Full URL path.
  * @return string Absolute path.
  */
 function wp_make_link_relative( $link ) {
-	return preg_replace( '|https?://[^/]+(/.*)|i', '$1', $link );
+	return preg_replace( '|^(https?:)?//[^/]+(/.*)|i', '$2', $link );
 }
 
 /**
@@ -3481,7 +3482,6 @@ function wp_parse_str( $string, &$array ) {
  *
  * KSES already converts lone greater than signs.
  *
- * @uses wp_pre_kses_less_than_callback in the callback function.
  * @since 2.3.0
  *
  * @param string $text Text to be converted.
@@ -3494,7 +3494,6 @@ function wp_pre_kses_less_than( $text ) {
 /**
  * Callback function used by preg_replace.
  *
- * @uses esc_html to format the $matches text.
  * @since 2.3.0
  *
  * @param array $matches Populated by matches to preg_replace.
@@ -3697,17 +3696,18 @@ function _links_add_base($m) {
 	return $m[1] . '=' . $m[2] .
 		( preg_match( '#^(\w{1,20}):#', $m[3], $protocol ) && in_array( $protocol[1], wp_allowed_protocols() ) ?
 			$m[3] :
-			path_join( $_links_add_base, $m[3] ) )
+			WP_HTTP::make_absolute_url( $m[3], $_links_add_base )
+		)
 		. $m[2];
 }
 
 /**
  * Adds a Target attribute to all links in passed content.
  *
- * This function by default only applies to <a> tags, however this can be
+ * This function by default only applies to `<a>` tags, however this can be
  * modified by the 3rd param.
  *
- * <b>NOTE:</b> Any current target attributed will be stripped and replaced.
+ * *NOTE:* Any current target attributed will be stripped and replaced.
  *
  * @since 2.7.0
  *
@@ -3758,7 +3758,7 @@ function normalize_whitespace( $str ) {
  * Properly strip all HTML tags including script and style
  *
  * This differs from strip_tags() because it removes the contents of
- * the <script> and <style> tags. E.g. strip_tags( '<script>something</script>' )
+ * the `<script>` and `<style>` tags. E.g. `strip_tags( '<script>something</script>' )`
  * will return 'something'. wp_strip_all_tags will return ''
  *
  * @since 2.9.0