version 1.2, 1994/05/18 17:30:03
|
version 1.14, 1997/07/06 14:29:34
|
Line 1
|
Line 1
|
\ WORDINFO.FS V1.0 17may93jaw |
\ WORDINFO.FS V1.0 17may93jaw |
|
|
|
\ Copyright (C) 1995 Free Software Foundation, Inc. |
|
|
|
\ This file is part of Gforth. |
|
|
|
\ Gforth is free software; you can redistribute it and/or |
|
\ modify it under the terms of the GNU General Public License |
|
\ as published by the Free Software Foundation; either version 2 |
|
\ of the License, or (at your option) any later version. |
|
|
|
\ This program is distributed in the hope that it will be useful, |
|
\ but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
\ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
|
\ GNU General Public License for more details. |
|
|
|
\ You should have received a copy of the GNU General Public License |
|
\ along with this program; if not, write to the Free Software |
|
\ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
|
|
\ May be cross-compiled |
\ May be cross-compiled |
\ If you want check values then exclude comments, |
\ If you want check values then exclude comments, |
\ but keep in mind that this can't be cross-compiled |
\ but keep in mind that this can't be cross-compiled |
|
|
INCLUDE look.fs |
\ INCLUDE look.fs |
|
|
\ Wordinfo is a tool that checks a nfa |
\ Wordinfo is a tool that checks a nfa |
\ and finds out what wordtype we have |
\ and finds out what wordtype we have |
\ it is used in SEE.FS |
\ it is used in SEE.FS |
|
|
: alias? ( nfa -- flag ) |
\ the old alias? did not work and it is not used, so I changed |
dup name> look |
\ it in many respects - anton |
0= ABORT" WINFO: CFA not found" |
: alias? ( nfa1 -- nfa2|0 ) |
cell+ |
\ if nfa1 is an alias, nfa2 is the name of the original word |
2dup <> |
dup cell+ c@ alias-mask and 0= |
IF nip dup 1 cells - here ! |
IF ( nfa1 ) |
count $1f and here cell+ place true |
((name>)) @ >name ( use look instead? ) |
ELSE 2drop false THEN ; |
ELSE |
|
drop 0 |
|
THEN ; |
|
|
: var? ( nfa -- flag ) |
: var? ( nfa -- flag ) |
(name>) |
((name>)) >code-address dovar: = ; |
>code-address ['] leavings >code-address = ; |
|
|
|
: con? ( nfa -- flag ) |
: con? ( nfa -- flag ) |
(name>) |
((name>)) >code-address docon: = ; |
>code-address ['] bl >code-address = ; |
|
|
: user? ( nfa -- flag ) |
|
((name>)) >code-address douser: = ; |
|
|
: does? ( nfa -- flag ) |
: does? ( nfa -- flag ) |
dup (name>) |
((name>)) |
>code-address ['] source >code-address = |
>does-code 0<> ; |
dup IF swap (name>) cell+ @ here ! ELSE nip THEN ; |
|
|
|
: defered? ( nfa -- flag ) |
: defered? ( nfa -- flag ) |
dup does? |
((name>)) >code-address dodefer: = ; |
IF here @ ['] source cell+ @ = |
|
dup IF swap (name>) >body @ here ! ELSE nip THEN |
|
ELSE drop false THEN ; |
|
|
|
: colon? ( nfa -- flag ) |
: colon? ( nfa -- flag ) |
(name>) |
((name>)) >code-address docol: = ; |
>code-address ['] does? >code-address = ; |
|
|
|
\ VALUE VCheck |
|
|
|
\ : value? ( nfa -- flag ) |
\ the above words could be factored with create-does>, but this would |
\ dup does? |
\ probably make this file incompatible with cross. |
\ IF here @ ['] VCheck cell+ @ = |
|
\ dup IF swap (name>) >body @ here ! ELSE nip THEN |
|
\ ELSE drop false THEN ; |
|
|
|
|
[IFDEF] forthstart |
|
: xtprim? ( xt -- flag ) |
|
forthstart u< ; |
|
[ELSE] |
|
: xtprim? ( xt -- flag ) |
|
dup >body swap >code-address = ; |
|
[THEN] |
: prim? ( nfa -- flag ) |
: prim? ( nfa -- flag ) |
name> |
name>int xtprim? ; |
forthstart u< ; |
|
|
|
\ None nestable IDs: |
\ None nestable IDs: |
|
|
Line 66 INCLUDE look.fs
|
Line 83 INCLUDE look.fs
|
5 CONSTANT Doe# \ Does part |
5 CONSTANT Doe# \ Does part |
6 CONSTANT Def# \ Defer |
6 CONSTANT Def# \ Defer |
7 CONSTANT Col# \ Colon def |
7 CONSTANT Col# \ Colon def |
|
8 CONSTANT Use# \ User variable |
|
|
\ Nobody knows: |
\ Nobody knows: |
|
|
8 CONSTANT Ali# \ Alias |
9 CONSTANT Ali# \ Alias |
|
|
9 CONSTANT Str# \ Structure words |
10 CONSTANT Str# \ Structure words |
|
|
10 CONSTANT Com# \ Compiler directives : ; POSTPONE |
11 CONSTANT Com# \ Compiler directives : ; POSTPONE |
|
|
CREATE InfoTable |
CREATE InfoTable |
' Alias? A, Ali# , |
' Prim? A, Pri# , |
' Con? A, Con# , |
' Alias? A, Ali# , |
' Var? A, Var# , |
' Con? A, Con# , |
\ ' Value? A, Val# , |
' Var? A, Var# , |
|
\ ' Value? A, Val# , |
' Defered? A, Def# , |
' Defered? A, Def# , |
' Does? A, Doe# , |
' Does? A, Doe# , |
' Colon? A, Col# , |
' Colon? A, Col# , |
' Prim? A, Pri# , |
' User? A, Use# , |
0 , |
0 , |
|
|
: WordInfo ( nfa --- code ) |
: WordInfo ( nfa --- code ) |