first commit

wp-content/plugins/sitepress-multilingual-cms/classes/utilities/class-wpml-string-functions.php

@@ -0,0 +1,30 @@
+<?php
+
+class WPML_String_Functions {
+
+	public static function is_css_color( $string ) {
+		return (bool) preg_match( '/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})$/im', $string );
+	}
+
+	public static function is_css_length( $string ) {
+		$parts = explode( ' ', $string );
+		foreach ( $parts as $part ) {
+			if ( ! (bool) preg_match( '/^[+-]?[0-9]+.?([0-9]+)?(px|em|ex|ch|rem|vw|vh|vmin|vmax|%|in|cm|mm|pt|pc)$/im', $part ) &&
+			   '0' !== $part ) {
+				return false;
+			}
+		}
+
+		return true;
+	}
+
+	public static function is_numeric( $string ) {
+		return (bool) is_numeric( $string );
+	}
+
+	public static function is_not_translatable( $string ) {
+		return self::is_css_color( $string ) ||
+			   self::is_css_length( $string ) ||
+			   self::is_numeric( $string );
+	}
+}