REPLACA and its cousin REPLACD are part of the Common Lisp standard, but they are indeed something you should probably never see. Even for mapping across a stru

REPLACA and its cousin REPLACD are part of the Common Lisp standard, but they are indeed something you should probably never see. Even for mapping across a structure or something I'd prefer to write my own inline function. They along with TERPRI (newline) are the ugliest function names of CL.