Ticket #19100: 19100-clean.diff

wp-includes/formatting.php

@@ -2432 +2432 @@
 }
 
 /**
+ * Escape a color for use in css.
+ *
+ * @param string $color RGB color represented in hexidecimal notation.
+ * @return string The value of $color if it is a color represented in hexidecimal notation; The string 'transparent' otherwise.
+ *
+ * @since 3.4
+ */
+function esc_color( $color ) {
+        $color = esc_color_raw( $color );
+        if ( 'transparent' != $color )
+                $color = '#' . $color;
+        return $color;
+}
+
+/**
+ * Escape a color for database saves.
+ *
+ * @param string $color RGB color represented in hexidecimal notation.
+ * @return string The value of $color if it is a color represented in hexidecimal notation; The string 'transparent' otherwise.
+ *
+ * @since 3.4
+ */
+function esc_color_raw( $color ) {
+        $default = 'transparent';
+        $color = trim( $color );
+
+        if ( 0 === strpos( $color, '#' ) )
+                $color = substr( $color, 1 );
+
+        if ( 0 === strpos( $color, '%23' ) )
+                $color = substr( $color, 3 );
+
+        if ( ! ctype_xdigit( $color ) )
+                return $default;
+
+        if ( ! in_array( strlen( $color ), array( 3, 6 ) ) )
+                return $default;
+
+        return strtolower( $color );
+}
+
+/**
  * Escape a HTML tag name.
  *
  * @since 2.5.0