--- gforth/look.fs 1997/08/31 19:31:29 1.9 +++ gforth/look.fs 2000/05/27 09:41:28 1.13 @@ -1,6 +1,6 @@ \ LOOK.FS xt -> lfa 22may93jaw -\ Copyright (C) 1995 Free Software Foundation, Inc. +\ Copyright (C) 1995,1996,1997 Free Software Foundation, Inc. \ This file is part of Gforth. @@ -46,32 +46,41 @@ decimal [IFUNDEF] look has? ec [IF] -has-rom +has? rom [IF] : look dup [ unlock rom-dictionary area lock ] literal literal within IF - >name dup ?? <> + >head-noprim dup ?? <> ELSE forth-wordlist @ (look) THEN ; [ELSE] : look ( cfa -- lfa flag ) - >name dup ??? <> ; + >head-noprim dup ??? <> ; [THEN] [ELSE] -: PrimStart ['] true >name ; +: PrimStart ['] true >head-noprim ; : look ( cfa -- lfa flag ) - dup dictionary-end forthstart within + dup in-dictionary? IF - PrimStart (look) + >head-noprim dup ??? <> ELSE - >name dup ??? <> + PrimStart (look) THEN ; [THEN] [THEN] + +: >head ( cfa -- nt|0 ) \ gforth to-head + \G tries to find the name token nt of the word represented by cfa; + \G returns 0 if it fails. This word is not absolutely reliable, + \G it may give false positives and produce wrong nts. + look and ; + +' >head ALIAS >name \ gforth to-name +\G old name of @code{>head}