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Docs: Improve inline comments per the documentation standards.

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Includes minor code layout fixes for better readability.

See #48303.

git-svn-id: https://develop.svn.wordpress.org/trunk@47122 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Sergey Biryukov
2020-01-29 00:43:23 +00:00
parent bd2cd572aa
commit cfc3b57488
810 changed files with 9893 additions and 8384 deletions
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src/wp-includes/shortcodes.php
+35 -33
View File
@@ -217,7 +217,7 @@ function do_shortcode( $content, $ignore_html = false ) {
$pattern = get_shortcode_regex( $tagnames );
$content = preg_replace_callback( "/$pattern/", 'do_shortcode_tag', $content );
// Always restore square braces so we don't break things like <!--[if IE ]>
// Always restore square braces so we don't break things like <!--[if IE ]>.
$content = unescape_invalid_shortcodes( $content );
return $content;
@@ -254,39 +254,39 @@ function get_shortcode_regex( $tagnames = null ) {
}
$tagregexp = join( '|', array_map( 'preg_quote', $tagnames ) );
// WARNING! Do not change this regex without changing do_shortcode_tag() and strip_shortcode_tag()
// WARNING! Do not change this regex without changing do_shortcode_tag() and strip_shortcode_tag().
// Also, see shortcode_unautop() and shortcode.js.
// phpcs:disable Squiz.Strings.ConcatenationSpacing.PaddingFound -- don't remove regex indentation
return
'\\[' // Opening bracket
. '(\\[?)' // 1: Optional second opening bracket for escaping shortcodes: [[tag]]
. "($tagregexp)" // 2: Shortcode name
. '(?![\\w-])' // Not followed by word character or hyphen
. '(' // 3: Unroll the loop: Inside the opening shortcode tag
. '[^\\]\\/]*' // Not a closing bracket or forward slash
'\\[' // Opening bracket.
. '(\\[?)' // 1: Optional second opening bracket for escaping shortcodes: [[tag]].
. "($tagregexp)" // 2: Shortcode name.
. '(?![\\w-])' // Not followed by word character or hyphen.
. '(' // 3: Unroll the loop: Inside the opening shortcode tag.
. '[^\\]\\/]*' // Not a closing bracket or forward slash.
. '(?:'
. '\\/(?!\\])' // A forward slash not followed by a closing bracket
. '[^\\]\\/]*' // Not a closing bracket or forward slash
. '\\/(?!\\])' // A forward slash not followed by a closing bracket.
. '[^\\]\\/]*' // Not a closing bracket or forward slash.
. ')*?'
. ')'
. '(?:'
. '(\\/)' // 4: Self closing tag ...
. '\\]' // ... and closing bracket
. '(\\/)' // 4: Self closing tag...
. '\\]' // ...and closing bracket.
. '|'
. '\\]' // Closing bracket
. '\\]' // Closing bracket.
. '(?:'
. '(' // 5: Unroll the loop: Optionally, anything between the opening and closing shortcode tags
. '[^\\[]*+' // Not an opening bracket
. '(' // 5: Unroll the loop: Optionally, anything between the opening and closing shortcode tags.
. '[^\\[]*+' // Not an opening bracket.
. '(?:'
. '\\[(?!\\/\\2\\])' // An opening bracket not followed by the closing shortcode tag
. '[^\\[]*+' // Not an opening bracket
. '\\[(?!\\/\\2\\])' // An opening bracket not followed by the closing shortcode tag.
. '[^\\[]*+' // Not an opening bracket.
. ')*+'
. ')'
. '\\[\\/\\2\\]' // Closing shortcode tag
. '\\[\\/\\2\\]' // Closing shortcode tag.
. ')?'
. ')'
. '(\\]?)'; // 6: Optional second closing brocket for escaping shortcodes: [[tag]]
. '(\\]?)'; // 6: Optional second closing brocket for escaping shortcodes: [[tag]].
// phpcs:enable
}
@@ -306,7 +306,7 @@ function get_shortcode_regex( $tagnames = null ) {
function do_shortcode_tag( $m ) {
global $shortcode_tags;
// allow [[foo]] syntax for escaping a tag
// Allow [[foo]] syntax for escaping a tag.
if ( $m[1] == '[' && $m[6] == ']' ) {
return substr( $m[0], 1, -1 );
}
@@ -396,14 +396,14 @@ function do_shortcodes_in_html_tags( $content, $ignore_html, $tagnames ) {
if ( $noopen || $noclose ) {
// This element does not contain shortcodes.
if ( $noopen xor $noclose ) {
// Need to encode stray [ or ] chars.
// Need to encode stray '[' or ']' chars.
$element = strtr( $element, $trans );
}
continue;
}
if ( $ignore_html || '<!--' === substr( $element, 0, 4 ) || '<![CDATA[' === substr( $element, 0, 9 ) ) {
// Encode all [ and ] chars.
// Encode all '[' and ']' chars.
$element = strtr( $element, $trans );
continue;
}
@@ -415,12 +415,12 @@ function do_shortcodes_in_html_tags( $content, $ignore_html, $tagnames ) {
$element = preg_replace_callback( "/$pattern/", 'do_shortcode_tag', $element );
}
// Looks like we found some crazy unfiltered HTML. Skipping it for sanity.
// Looks like we found some crazy unfiltered HTML. Skipping it for sanity.
$element = strtr( $element, $trans );
continue;
}
// Get element name
// Get element name.
$front = array_shift( $attributes );
$back = array_pop( $attributes );
$matches = array();
@@ -432,18 +432,20 @@ function do_shortcodes_in_html_tags( $content, $ignore_html, $tagnames ) {
$open = strpos( $attr, '[' );
$close = strpos( $attr, ']' );
if ( false === $open || false === $close ) {
continue; // Go to next attribute. Square braces will be escaped at end of loop.
continue; // Go to next attribute. Square braces will be escaped at end of loop.
}
$double = strpos( $attr, '"' );
$single = strpos( $attr, "'" );
if ( ( false === $single || $open < $single ) && ( false === $double || $open < $double ) ) {
// $attr like '[shortcode]' or 'name = [shortcode]' implies unfiltered_html.
// In this specific situation we assume KSES did not run because the input
// was written by an administrator, so we should avoid changing the output
// and we do not need to run KSES here.
/*
* $attr like '[shortcode]' or 'name = [shortcode]' implies unfiltered_html.
* In this specific situation we assume KSES did not run because the input
* was written by an administrator, so we should avoid changing the output
* and we do not need to run KSES here.
*/
$attr = preg_replace_callback( "/$pattern/", 'do_shortcode_tag', $attr );
} else {
// $attr like 'name = "[shortcode]"' or "name = '[shortcode]'"
// $attr like 'name = "[shortcode]"' or "name = '[shortcode]'".
// We do not know if $content was unfiltered. Assume KSES ran before shortcodes.
$count = 0;
$new_attr = preg_replace_callback( "/$pattern/", 'do_shortcode_tag', $attr, -1, $count );
@@ -459,7 +461,7 @@ function do_shortcodes_in_html_tags( $content, $ignore_html, $tagnames ) {
}
$element = $front . implode( '', $attributes ) . $back;
// Now encode any remaining [ or ] chars.
// Now encode any remaining '[' or ']' chars.
$element = strtr( $element, $trans );
}
@@ -646,7 +648,7 @@ function strip_shortcodes( $content ) {
$pattern = get_shortcode_regex( $tagnames );
$content = preg_replace_callback( "/$pattern/", 'strip_shortcode_tag', $content );
// Always restore square braces so we don't break things like <!--[if IE ]>
// Always restore square braces so we don't break things like <!--[if IE ]>.
$content = unescape_invalid_shortcodes( $content );
return $content;
@@ -661,7 +663,7 @@ function strip_shortcodes( $content ) {
* @return string|false The content stripped of the tag, otherwise false.
*/
function strip_shortcode_tag( $m ) {
// allow [[foo]] syntax for escaping a tag
// Allow [[foo]] syntax for escaping a tag.
if ( $m[1] == '[' && $m[6] == ']' ) {
return substr( $m[0], 1, -1 );
}