version 1.10, 1996/01/25 16:45:57
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version 1.25, 2003/01/20 17:07:38
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\ WORDINFO.FS V1.0 17may93jaw |
\ WORDINFO.FS V1.0 17may93jaw |
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\ Copyright (C) 1995 Free Software Foundation, Inc. |
\ Copyright (C) 1995,1996,1998,2000 Free Software Foundation, Inc. |
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\ This file is part of Gforth. |
\ This file is part of Gforth. |
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\ You should have received a copy of the GNU General Public License |
\ You should have received a copy of the GNU General Public License |
\ along with this program; if not, write to the Free Software |
\ along with this program; if not, write to the Free Software |
\ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
\ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. |
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\ 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 |
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INCLUDE look.fs |
require look.fs |
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\ 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 |
Line 31 INCLUDE look.fs
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Line 31 INCLUDE look.fs
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\ the old alias? did not work and it is not used, so I changed |
\ the old alias? did not work and it is not used, so I changed |
\ it in many respects - anton |
\ it in many respects - anton |
: alias? ( nfa1 -- nfa2|0 ) |
: alias? ( nfa1 -- nfa2|0 ) |
\ if nfa1 is an alias, nfa2 is the name of the original word |
\ if nfa1 is an alias, nfa2 is the name of the original word. |
cell+ dup c@ $80 and 0= |
\ if the original word has no name, return 0. |
IF |
dup cell+ @ alias-mask and 0= |
(name>) @ >name ( use look instead? ) |
IF ( nfa1 ) |
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((name>)) @ >name |
ELSE |
ELSE |
drop 0 |
drop 0 |
THEN ; |
THEN ; |
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: var? ( nfa -- flag ) |
: var? ( nfa -- flag ) |
cell+ (name>) >code-address dovar: = ; |
((name>)) >code-address dovar: = ; |
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: con? ( nfa -- flag ) |
: con? ( nfa -- flag ) |
cell+ (name>) >code-address docon: = ; |
((name>)) >code-address docon: = ; |
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: user? ( nfa -- flag ) |
: user? ( nfa -- flag ) |
cell+ (name>) >code-address douser: = ; |
((name>)) >code-address douser: = ; |
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: does? ( nfa -- flag ) |
: does? ( nfa -- flag ) |
\ !! does not work on all installations |
((name>)) |
cell+ (name>) |
>does-code 0<> ; |
>code-address ['] spaces >code-address = ; |
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: defered? ( nfa -- flag ) |
: defered? ( nfa -- flag ) |
cell+ (name>) >code-address dodefer: = ; |
((name>)) >code-address dodefer: = ; |
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: colon? ( nfa -- flag ) |
: colon? ( nfa -- flag ) |
cell+ (name>) >code-address docol: = ; |
((name>)) >code-address docol: = ; |
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\ the above words could be factored with create-does>, but this would |
\ the above words could be factored with create-does>, but this would |
\ probably make this file incompatible with cross. |
\ probably make this file incompatible with cross. |
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\ VALUE VCheck |
[IFDEF] forthstart |
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: xtprim? ( xt -- flag ) |
\ : value? ( nfa -- flag ) |
in-dictionary? 0= ; \ !! does not work for CODE words |
\ dup does? |
[ELSE] |
\ IF here @ ['] VCheck cell+ @ = |
: xtprim? ( xt -- flag ) |
\ dup IF swap (name>) >body @ here ! ELSE nip THEN |
dup >body swap >code-address = ; \ !! works only for indirect threaded code |
\ ELSE drop false THEN ; |
\ !! does not work for primitives |
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[THEN] |
: prim? ( nfa -- flag ) |
: prim? ( nfa -- flag ) |
name> |
name>int xtprim? ; |
forthstart u< ; |
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\ None nestable IDs: |
\ None nestable IDs: |
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