Re: Implementation of execute-parsing-file

From	anton@mips.complang.tuwien.ac.at (Anton Ertl)
Subject	Re: Implementation of execute-parsing-file
Newsgroups	comp.lang.forth
References	(4 earlier) <5bc30b9d-a4f0-4cec-9000-9a9709de9532@v8g2000yqb.googlegroups.com> <inhavt$era$2@dont-email.me> <47e2ba82-7653-46c9-85a6-73d31e715f8d@32g2000vbe.googlegroups.com> <4d9d8f99$0$11751$882e7ee2@usenet-news.net> <2995683f-b76e-4544-9cda-a2e6f7ad37a7@k30g2000yqb.googlegroups.com>
Organization	Institut fuer Computersprachen, Technische Universitaet Wien
Date	2011-04-07 16:32 +0000
Message-ID	<2011Apr7.183251@mips.complang.tuwien.ac.at> (permalink)

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BruceMcF <agila61@netscape.net> writes:
>On Apr 7, 6:19=A0am, Josh Grams <j...@qualdan.com> wrote:
>> Hrm. =A0I'd argue the other way on that. =A0It's *less* reliable, as it's
>> late binding, so if the evaluated string is defined in a different place
>> than where it's used, you have to worry about whether all the names have
>> the expected meaning.
>
>Its as late or early binding as you wish it to be, since it can of
>course be:
>   S" EXECUTE" INCLUDE-WITH foo.fs
>or
>   S" foo.fs" R/O OPEN-FILE THROW
>   S" EXECUTE" INCLUDE-FILE-WITH

That would late-bind EXECUTE.  There are workarounds for this kind of
misdesign (look at the standard implementation of EXECUTE-PARSING),
but it's better to avoid the misdesign than to work around it.

Also, with a string to EVALUATE the current input source would be the
string, not the FILE, and it would be very messy both in the
specification and in the implementation to let a parsing word in the
string parse the file.

- anton
-- 
M. Anton Ertl  http://www.complang.tuwien.ac.at/anton/home.html
comp.lang.forth FAQs: http://www.complang.tuwien.ac.at/forth/faq/toc.html
     New standard: http://www.forth200x.org/forth200x.html
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Implementation of execute-parsing-file Gerry Jackson <gerry@jackson9000.fsnet.co.uk> - 2011-04-05 10:50 +0100
  Re: Implementation of execute-parsing-file David Kuehling <dvdkhlng@gmx.de> - 2011-04-05 11:58 +0200
    Re: Implementation of execute-parsing-file Gerry Jackson <gerry@jackson9000.fsnet.co.uk> - 2011-04-05 12:26 +0100
      Re: Implementation of execute-parsing-file Josh Grams <josh@qualdan.com> - 2011-04-05 22:35 +0000
        Re: Implementation of execute-parsing-file BruceMcF <agila61@netscape.net> - 2011-04-05 18:31 -0700
          Re: Implementation of execute-parsing-file Gerry Jackson <gerry@jackson9000.fsnet.co.uk> - 2011-04-06 10:15 +0100
            Re: Implementation of execute-parsing-file BruceMcF <agila61@netscape.net> - 2011-04-06 09:04 -0700
              Re: Implementation of execute-parsing-file Josh Grams <josh@qualdan.com> - 2011-04-07 10:19 +0000
                Re: Implementation of execute-parsing-file BruceMcF <agila61@netscape.net> - 2011-04-07 07:54 -0700
                Re: Implementation of execute-parsing-file anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2011-04-07 16:32 +0000
                Re: Implementation of execute-parsing-file BruceMcF <agila61@netscape.net> - 2011-04-08 18:22 -0700
                Re: Implementation of execute-parsing-file anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2011-04-09 13:10 +0000
                Re: Implementation of execute-parsing-file BruceMcF <agila61@netscape.net> - 2011-04-09 12:43 -0700
                Re: Implementation of execute-parsing-file anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2011-04-10 13:22 +0000
                Re: Implementation of execute-parsing-file BruceMcF <agila61@netscape.net> - 2011-04-10 09:44 -0700
                Re: Implementation of execute-parsing-file anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2011-04-11 14:22 +0000
                Re: Implementation of execute-parsing-file BruceMcF <agila61@netscape.net> - 2011-04-11 08:37 -0700
                Re: Implementation of execute-parsing-file BruceMcF <agila61@netscape.net> - 2011-04-11 09:05 -0700
                Re: Implementation of execute-parsing-file anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2011-04-13 16:50 +0000
                Re: Implementation of execute-parsing-file BruceMcF <agila61@netscape.net> - 2011-04-13 12:37 -0700
                Re: Implementation of execute-parsing-file Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-04-10 02:55 -0500
                Re: Implementation of execute-parsing-file anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2011-04-10 13:11 +0000
                Re: Implementation of execute-parsing-file Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-04-10 09:27 -0500
                Re: Implementation of execute-parsing-file anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2011-04-11 14:11 +0000
                Re: Implementation of execute-parsing-file Doug Hoffman <glidedog@gmail.com> - 2011-04-07 11:46 -0400
                Re: Implementation of execute-parsing-file BruceMcF <agila61@netscape.net> - 2011-04-08 18:24 -0700
                Re: Implementation of execute-parsing-file Doug Hoffman <glidedog@gmail.com> - 2011-04-09 02:53 -0400
                Re: Implementation of execute-parsing-file BruceMcF <agila61@netscape.net> - 2011-04-09 13:01 -0700
            Re: Implementation of execute-parsing-file BruceMcF <agila61@netscape.net> - 2011-04-06 09:14 -0700
        Re: Implementation of execute-parsing-file Gerry Jackson <gerry@jackson9000.fsnet.co.uk> - 2011-04-06 10:15 +0100

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