Changeset 28708

Timestamp:

06/09/2014 07:29:55 PM (10 years ago)

Author:

wonderboymusic

Message:

Add a function: wp_spaces_regexp(). It is not used yet.

This function is required by a bunch of patches by miqrogroove. Needs filter docs.

Props miqrogroove.
See #27588.

File:

• trunk/src/wp-includes/formatting.php (modified) (1 diff)

trunk/src/wp-includes/formatting.php

@@ -3845 +3845 @@
     return false;
 }
+
+/**
+ * Returns the regexp for common whitespace characters.
+ *
+ * By default, spaces include new lines, tabs, nbsp entities, and the UTF-8 nbsp.
+ * This is designed to replace the PCRE \s sequence.  In ticket #22692, that
+ * sequence was found to be unreliable due to random inclusion of the A0 byte.
+ *
+ * @since 4.0.0
+ *
+ * @return string The spaces regexp.
+ */
+function wp_spaces_regexp() {
+    static $spaces;
+
+    if ( empty( $spaces ) ) {
+        $spaces = apply_filters( 'wp_spaces_regexp', '[\r\n\t ]|\xC2\xA0| ' );
+    }
+
+    return $spaces;
+}