*'''[[string.usub]]'''(str, startpos, endpos) - This routine returns a substring of str. It is the Unicode version of string.sub. It accounts for multi-byte characters encoded in UTF-8. Caution: this is an expensive routine. It allocates a temporary memory buffer during its operation. | *'''[[string.usub]]'''(str, startpos, endpos) - This routine returns a substring of str. It is the Unicode version of string.sub. It accounts for multi-byte characters encoded in UTF-8. Caution: this is an expensive routine. It allocates a temporary memory buffer during its operation. |