Newsgroups: comp.lang.forth
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From: albert@spenarnc.xs4all.nl
Subject: Re: THROW codes and ambiguous conditions
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In article <101q6ik$10htc$1@dont-email.me>,  <sean@conman.org> wrote:
>It was thus said that the Great dxf <dxforth@gmail.com> once stated:
>>
>> Perhaps the TC went along with Mitch.  CATCH THROW was his idea and
>> here's a bunch of codes to go with it.  The extent to which a tiny forth
>> is going to use ANS is dubious.
>
>  What constitutes a "tiny Forth"?  Because I just implemented ANS Forth [1]
>for the 6809 [2], and I included CATCH and THROW.  It's almost 12K in size
>and for the wordsets it implements, it passes the ANS Forth test suite.  I
>implemented the EXCEPTION wordset because it seems a 2017 update mandated
>it's use.  While I'm not a fan of exceptions, it wasn't hard to implement
>and it seemed better thought out than SYNONYM [4].

Good work, 12K is justly considered tiny.
>
>  -spc
>
>[1]    I implemented CORE, CORE-EXT, DOUBLE, DOUBLE-EXT, EXCEPTION,
>       EXCEPTION-EXT, LOCAL, LOCAL-EXT, TOOLS, some of TOOLS-EXT [3],
>       SEARCH, SEARCH-EXT, STRING and STRING-EXT.
>
>[2]    https://github.com/spc476/ANS-Forth
>
>[3]    Words implemented from TOOLS-EXT: AHEAD, BYE, CS-PICK, CS_ROLL, N>R,
>       NAME>COMPILE, NAME>INTERPRET, NAME>STRING, NR>, STATE,
>       TRAVERSE-WORDLIST, [DEFINED], [ELSE], [IF], [THEN], [UNDEFINED].
>
>[4]    When reading about it [5], I decided I didn't want anything to do
>       with that quagmire of a word.
>
>[5]    https://forth-standard.org/standard/tools/SYNONYM

You have included a lot of words that I considered not needed for
a tiny Forth.
The first time I will ever need CS-PICK I will add it to the library.
It is not eligible for a kernel word.

Groetjes Albert
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