trimspaces – Trim spaces around an ar­gu­ment or within a macro

A very short pack­age that al­lows you to ex­pand­ably re­move spaces around a to­ken list (com­mands are pro­vided to re­move spaces be­fore, spaces af­ter, or both); or to re­move sur­round­ing spaces within a macro def­i­ni­tion, or to de­fine space-stripped macros.