version 1.6, 1994/11/29 16:22:51
|
version 1.16, 1998/05/15 21:24:39
|
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 ) |
cell+ (name>) |
((name>)) >code-address dovar: = ; |
>code-address ['] udp >code-address = ; |
|
|
|
: con? ( nfa -- flag ) |
: con? ( nfa -- flag ) |
cell+ (name>) |
((name>)) >code-address docon: = ; |
>code-address ['] bl >code-address = ; |
|
|
|
: user? ( nfa -- flag ) |
: user? ( nfa -- flag ) |
cell+ (name>) |
((name>)) >code-address douser: = ; |
>code-address ['] s0 >code-address = ; |
|
|
|
: does? ( nfa -- flag ) |
: does? ( nfa -- flag ) |
cell+ (name>) |
((name>)) |
>code-address ['] bits >code-address = ; |
>does-code 0<> ; |
|
|
: defered? ( nfa -- flag ) |
: defered? ( nfa -- flag ) |
cell+ (name>) |
((name>)) >code-address dodefer: = ; |
>code-address ['] source >code-address = ; |
|
|
|
: colon? ( nfa -- flag ) |
: colon? ( nfa -- flag ) |
cell+ (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 ) |
|
dictionary-end forthstart within ; \ !! does not work for CODE words |
|
[ELSE] |
|
: xtprim? ( xt -- flag ) |
|
dup >body swap >code-address = ; \ !! works only for indirect threaded code |
|
\ !! does not work for primitives |
|
[THEN] |
: prim? ( nfa -- flag ) |
: prim? ( nfa -- flag ) |
name> |
name>int xtprim? ; |
forthstart u< ; |
|
|
|
\ None nestable IDs: |
\ None nestable IDs: |
|
|