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Groups > comp.lang.forth > #34776
| From | Wolf Wejgaard <wolf@holonforth.com> |
|---|---|
| Newsgroups | comp.lang.forth |
| Subject | Re: TclForth Notes: Always Compiling, Forth without STATE |
| Date | 2014-12-04 16:54 +0100 |
| Organization | Aioe.org NNTP Server |
| Message-ID | <m5q03s$ldc$1@speranza.aioe.org> (permalink) |
| References | <m130qf$lb2$1@speranza.aioe.org> <m13lv0$dod$1@speranza.aioe.org> <D5qsmPs$dkB@7fun.de> |
On 2014-11-30 21:20:00 +0000, Joachim Merkel said:
> ...
>
> Trying with TclForth V052:
>
> ok> Compiler [ appendcode \[
> ok> Compiler ] appendcode "\] "
> ok> : test { -- } [ 1 2 + . ] ." We gaan naar Rome" ;
> ok> test
> 3 ? invalid command name ""
> ok>
Yes, it doesn't work as intended. I found the true solution later (see below).
The TclForth command line also handles compiling words, example:
ok> 8 1 do I . loop
1 2 3 4 5 6 7 ok>
ok>
TclForth does not interpret the line word by word but compiles the full
command line
and then executes it. The result is the same.
One question remained, which I tried to solve in the previous post: If
the interpreter
compiles the full line, how can it handle the immediate execution of a
part enclosed
in [ ] brackets for a result that is needed for compiling the rest of the line?
Solution: Compile and execute the bracketed part.
Let me illustrate with examples from the TclForth console:
ok> 1 [ 2 ] 3
(2 1 3) ok>
ok> "first" . "second" . [ "third" . ] "fourth" .
third first second fourth ok>
ok>
During compilation the immediate part is separately compiled and
executed, and removed
from the script, which is then further compiled and and executed.
TclForth thus works without a STATE variable, which makes me wonder if
this is a
general solution for a Forth system. After all, classical Forth takes
great care in
handling and discussing words that depend on a STATE. So far TclForth
does fine
without.
----------
I have moved the TclForth systems to GitHub for better version control
and change
management, and eventual cooperation.
https://github.com/wolfwejgaard/tclforth
The current version 0.56 includes the compiler update described above.
-----------
> BTW. I like HolonU and it's intensively in use here understanding
> my old PowerBasic-programs again after fine-grain modularizing them.
> Nice Work indeed, I'm very thankful you've shared your work.
:) - Welcome to the club!
>
> Now I puzzle about tcl/tk over a year and try to understand
> TclForth too. I'm not going to be a script-kid, but deeper
> understanding of this stuff seems valuable to me and makes fun.
What fascinates me: Forth is usually built on a very low or less low
level language,
mostly assembler or C. You have to create all the useful high-level
stuff yourself,
although there is by now a large body of solutions to draw on.
Now, if instead you base your Forth on a rich mature interpreter
language like Tcl as
your native language, you have all the features of classical Forth -
and much more -
available with a small grab down for whatever you need. Moreover, with
Tcl you also
get an inner interpreter ready made for Forth.
And you get a fresh view on classical Forth in comparison. I think it's
worth it.
The price is some knowledge of Tcl - instead of assembler and C and C
libraries which
you can duly ignore.
Wolf
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TclForth Notes: Always Compiling, Forth without STATE Wolf Wejgaard <wolf@holonforth.com> - 2014-10-08 11:40 +0200
Re: TclForth Notes: Always Compiling, Forth without STATE albert@spenarnc.xs4all.nl (Albert van der Horst) - 2014-10-08 11:53 +0000
Re: TclForth Notes: Always Compiling, Forth without STATE Wolf Wejgaard <wolf@holonforth.com> - 2014-10-08 17:41 +0200
Re: TclForth Notes: Always Compiling, Forth without STATE Joachim Merkel <jm@7fun.de> - 2014-11-30 22:20 +0100
Re: TclForth Notes: Always Compiling, Forth without STATE Wolf Wejgaard <wolf@holonforth.com> - 2014-12-04 16:54 +0100
Re: TclForth Notes: Always Compiling, Forth without STATE m.a.m.hendrix@tue.nl - 2014-12-05 00:05 -0800
Re: TclForth Notes: Always Compiling, Forth without STATE "Elizabeth D. Rather" <erather@forth.com> - 2014-12-04 22:47 -1000
Re: TclForth Notes: Always Compiling, Forth without STATE Bernd Paysan <bernd.paysan@gmx.de> - 2014-12-05 19:04 +0100
Re: TclForth Notes: Always Compiling, Forth without STATE Wolf Wejgaard <wejgaard@gmail.com> - 2015-01-21 02:23 -0800
Re: TclForth Notes: Always Compiling, Forth without STATE Wolf Wejgaard <wolf@holonforth.com> - 2014-12-06 08:53 +0100
Re: TclForth Notes: Always Compiling, Forth without STATE mhx@iae.nl - 2014-12-06 00:21 -0800
Re: TclForth Notes: Always Compiling, Forth without STATE Andrew Haley <andrew29@littlepinkcloud.invalid> - 2014-12-05 03:16 -0600
Re: TclForth Notes: Always Compiling, Forth without STATE Wolf Wejgaard <wolf@holonforth.com> - 2014-12-06 09:31 +0100
Re: TclForth Notes: Always Compiling, Forth without STATE Andrew Haley <andrew29@littlepinkcloud.invalid> - 2014-12-06 04:16 -0600
Re: TclForth Notes: Always Compiling, Forth without STATE albert@spenarnc.xs4all.nl (Albert van der Horst) - 2014-12-06 10:40 +0000
Re: TclForth Notes: Always Compiling, Forth without STATE anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2014-12-06 12:42 +0000
Re: TclForth Notes: Always Compiling, Forth without STATE Wolf Wejgaard <wejgaard@gmail.com> - 2015-01-21 02:26 -0800
Re: TclForth Notes: Always Compiling, Forth without STATE Joachim Merkel <jm412@gmx.de> - 2014-12-06 18:11 +0100
Re: TclForth Notes: Always Compiling, Forth without STATE Joachim Merkel <jm@g7up.de> - 2014-12-06 18:25 +0100
Re: TclForth Notes: Always Compiling, Forth without STATE Joachim Merkel <jm@7up.de> - 2014-12-06 18:42 +0100
Re: TclForth Notes: Always Compiling, Forth without STATE mix <mix@test.net> - 2014-12-15 18:55 +0000
Re: TclForth Notes: Always Compiling, Forth without STATE Coos Haak <chforth@hccnet.nl> - 2014-12-16 01:27 +0100
Re: TclForth Notes: Always Compiling, Forth without STATE Coos Haak <chforth@hccnet.nl> - 2014-12-16 01:50 +0100
Re: TclForth Notes: Always Compiling, Forth without STATE mix <mix@test.net> - 2014-12-16 05:04 +0000
Re: TclForth Notes: Always Compiling, Forth without STATE Andrew Haley <andrew29@littlepinkcloud.invalid> - 2014-12-16 04:08 -0600
Re: TclForth Notes: Always Compiling, Forth without STATE mix <mix@test.net> - 2014-12-16 23:32 +0000
Re: TclForth Notes: Always Compiling, Forth without STATE "Elizabeth D. Rather" <erather@forth.com> - 2014-12-16 14:45 -1000
Re: TclForth Notes: Always Compiling, Forth without STATE mix <mix@test.net> - 2014-12-17 06:01 +0000
Re: TclForth Notes: Always Compiling, Forth without STATE "Elizabeth D. Rather" <erather@forth.com> - 2014-12-16 22:21 -1000
Re: TclForth Notes: Always Compiling, Forth without STATE Andrew Haley <andrew29@littlepinkcloud.invalid> - 2014-12-17 02:24 -0600
Re: TclForth Notes: Always Compiling, Forth without STATE "Elizabeth D. Rather" <erather@forth.com> - 2014-12-16 23:07 -1000
Re: TclForth Notes: Always Compiling, Forth without STATE Andrew Haley <andrew29@littlepinkcloud.invalid> - 2014-12-17 08:21 -0600
Re: TclForth Notes: Always Compiling, Forth without STATE "Elizabeth D. Rather" <erather@forth.com> - 2014-12-17 08:57 -1000
Re: TclForth Notes: Always Compiling, Forth without STATE JennyB <jennybrien@googlemail.com> - 2014-12-17 04:52 -0800
Re: TclForth Notes: Always Compiling, Forth without STATE anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2014-12-17 09:58 +0000
Re: TclForth Notes: Always Compiling, Forth without STATE mix <mix@test.net> - 2014-12-18 04:11 +0000
Re: TclForth Notes: Always Compiling, Forth without STATE mix <mix@test.net> - 2014-12-18 04:16 +0000
Re: TclForth Notes: Always Compiling, Forth without STATE Andrew Haley <andrew29@littlepinkcloud.invalid> - 2014-12-17 02:11 -0600
Re: TclForth Notes: Always Compiling, Forth without STATE stephen@mpeforth.com (Stephen Pelc) - 2014-12-17 13:17 +0000
Re: TclForth Notes: Always Compiling, Forth without STATE Mark Wills <markwills1970@gmail.com> - 2014-12-17 06:24 -0800
Re: TclForth Notes: Always Compiling, Forth without STATE Andrew Haley <andrew29@littlepinkcloud.invalid> - 2014-12-05 03:19 -0600
Re: TclForth Notes: Always Compiling, Forth without STATE Wolf Wejgaard <wolf@holonforth.com> - 2014-12-06 09:31 +0100
Re: TclForth Notes: Always Compiling, Forth without STATE Andrew Haley <andrew29@littlepinkcloud.invalid> - 2014-12-06 04:19 -0600
Re: TclForth Notes: Always Compiling, Forth without STATE rickman <gnuarm@gmail.com> - 2014-12-08 01:14 -0500
Re: TclForth Notes: Always Compiling, Forth without STATE the_gavino_himself <visphatesjava@gmail.com> - 2014-12-17 05:42 -0800
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