Diff for /gforth/look.fs between versions 1.9 and 1.14

version 1.9, 1997/08/31 19:31:29 version 1.14, 2000/09/23 15:06:01
Line 1 Line 1
 \ LOOK.FS      xt -> lfa                               22may93jaw  \ LOOK.FS      xt -> lfa                               22may93jaw
   
 \ Copyright (C) 1995 Free Software Foundation, Inc.  \ Copyright (C) 1995,1996,1997,2000 Free Software Foundation, Inc.
   
 \ This file is part of Gforth.  \ This file is part of Gforth.
   
Line 46  decimal Line 46  decimal
 [IFUNDEF] look  [IFUNDEF] look
 has? ec [IF]  has? ec [IF]
   
 has-rom   has? rom 
 [IF]  [IF]
 : look  : look
     dup [ unlock rom-dictionary area lock ]       dup [ unlock rom-dictionary area lock ] 
     literal literal within      literal literal within
     IF      IF
         >name dup ?? <>          >head-noprim dup ?? <>
     ELSE      ELSE
         forth-wordlist @ (look)          forth-wordlist @ (look)
     THEN ;      THEN ;
 [ELSE]  [ELSE]
 : look ( cfa -- lfa flag )  : look ( cfa -- lfa flag )
     >name dup ??? <> ;      >head-noprim dup ??? <> ;
 [THEN]  [THEN]
   
 [ELSE]  [ELSE]
   
 : PrimStart ['] true >name ;  : PrimStart ['] true >head-noprim ;
   
 : look ( cfa -- lfa flag )  : look ( cfa -- lfa flag )
     dup dictionary-end forthstart within      dup in-dictionary?
     IF      IF
         PrimStart (look)          >head-noprim dup ??? <>
     ELSE      ELSE
         >name dup ??? <>          PrimStart (look)
     THEN ;      THEN ;
   
 [THEN]  [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}

Removed from v.1.9  
changed lines
  Added in v.1.14


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