evolution-cms / evolution

        if (!$previous || !isset($previous[self::TOKEN_VALUE]) || $previous[self::TOKEN_VALUE] !== '.') {

            $upper = strtoupper($string);

            // Top Level Reserved Word

            if (preg_match('/^(' . self::$regex_reserved_toplevel . ')($|\s|' . self::$regex_boundaries . ')/', $upper,

                $matches)) {

                return array(

                    self::TOKEN_TYPE  => self::TOKEN_TYPE_RESERVED_TOPLEVEL,

                    self::TOKEN_VALUE => substr($string, 0, strlen($matches[1]))

                );

            }

            // Newline Reserved Word

            if (preg_match('/^(' . self::$regex_reserved_newline . ')($|\s|' . self::$regex_boundaries . ')/', $upper,

                $matches)) {

                );

            }

            // Newline Reserved Word

            if (preg_match('/^(' . self::$regex_reserved_newline . ')($|\s|' . self::$regex_boundaries . ')/', $upper,

                $matches)) {

                return array(

                    self::TOKEN_TYPE  => self::TOKEN_TYPE_RESERVED_NEWLINE,

                    self::TOKEN_VALUE => substr($string, 0, strlen($matches[1]))

                );

            }

            // Other Reserved Word

            if (preg_match('/^(' . self::$regex_reserved . ')($|\s|' . self::$regex_boundaries . ')/', $upper,

                $matches)) {

                );

            }

            // Other Reserved Word

            if (preg_match('/^(' . self::$regex_reserved . ')($|\s|' . self::$regex_boundaries . ')/', $upper,

                $matches)) {

                return array(

                    self::TOKEN_TYPE  => self::TOKEN_TYPE_RESERVED,

                    self::TOKEN_VALUE => substr($string, 0, strlen($matches[1]))

                );

            }

        }

        // A function must be suceeded by '('

        // this makes it so "count(" is considered a function, but "count" alone is not

        $upper = strtoupper($string);

        // function

        if (preg_match('/^(' . self::$regex_function . '[(]|\s|[)])/', $upper, $matches)) {

            return array(

                self::TOKEN_TYPE  => self::TOKEN_TYPE_RESERVED,

                self::TOKEN_VALUE => substr($string, 0, strlen($matches[1]) - 1)

            );

        }

        // Non reserved word

        preg_match('/^(.*?)($|\s|["\'`]|' . self::$regex_boundaries . ')/', $string, $matches);