Ticket #30856: 30856.1.diff

wp-includes/formatting.php

@@ -264 +264 @@
                 } elseif ( '[' === $first && 1 === preg_match( '/^' . $shortcode_regex . '$/', $curl ) ) {
                         // This is a shortcode delimiter.
 
+                        // Replace any curly quotes with straight quotes in shortcodes
+                        $quote_search = array( '=“', '=”', '=‘', '=’', '“ ', '“]', '” ', '”]', '‘ ', '‘]', '’ ', '’]' );
+                        $quote_replace = array( '="', '="', '=\'', '=\'', '" ', '"]', '" ', '"]', '\' ', '\']', '\' ', '\']' );
+                        // Test it to be smart. Don't want to break the shortcode.      
+                        $test_curl = str_replace( $quote_search, $quote_replace, $curl );
+                        $test_atts = str_replace( array( '[', ']' ), '', $test_curl ); 
+                        $test_atts = shortcode_parse_atts( $test_atts );
+                        // Programmed to bail on clearing curly quotes if the shortcode's attributes have a $key of 1 or greater.
+                        // $key of value 0 is the name of the shortcode. 
+                        // All other $key values should be a string.
+                        $bail = false;
+                        foreach ($test_atts as $key => $value) {
+                                if ( is_int( $key ) && $key > 0 ) {
+                                        $bail = true;
+                                        break;
+                                }
+                        }
+                        if ( !$bail ) {
+                                $curl = $test_curl;
+                        }
+
                         if ( '[[' !== substr( $curl, 0, 2 ) && ']]' !== substr( $curl, -2 ) ) {
                                 // Looks like a normal shortcode.
                                 _wptexturize_pushpop_element( $curl, $no_texturize_shortcodes_stack, $no_texturize_shortcodes );