Re: Languages with optional spaces

From	"Ev. Drikos" <drikosev@gmail.com>
Newsgroups	comp.compilers
Subject	Re: Languages with optional spaces
Date	2020-03-12 17:45 +0200
Organization	Aioe.org NNTP Server
Message-ID	<20-03-012@comp.compilers> (permalink)
References	<20-02-015@comp.compilers> <20-02-016@comp.compilers>

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On 21/02/2020 08:38, Jerry wrote:
> class Lexer:
>      """
>      Lexer emulates quirky Applesoft tokenizer as closely as possible.
>
>      Thus, it diverges from what a normal lexer would do.  In
>      particular, spaces are completely insignificant, except within
>      strings, except if it finds "AT" followed by a space and then an
>      "N" appears.  That is parsed as "AT N", not "ATN".  Fun?;)
>      """

Hello,

Lacking any Python skills, I can't test the lexer but if this comment is
accurate, then any spaces in literals should normally be ignored.

The AppleSoft II manual in page 69 at www.classiccmp.org/cini/pdf/Apple/
implies that spaces are also important in literals after first position,
similar comment in the Basic dialect supported by the Compukit UK101 at
http://uk101.sourceforge.net/docs/index.html

Rather than critique, it's a detail I'm interested in, see next question.

Ev. Drikos

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Languages with optional spaces Maury Markowitz <maury.markowitz@gmail.com> - 2020-02-19 07:35 -0800
  Re: Languages with optional spaces Jerry <awanderin@gmail.com> - 2020-02-20 23:38 -0700
    Re: Languages with optional spaces Maury Markowitz <maury.markowitz@gmail.com> - 2020-02-25 06:13 -0800
      Re: Languages with optional spaces awanderin <awanderin@gmail.com> - 2020-02-26 10:03 -0700
    Re: Languages with optional spaces "Ev. Drikos" <drikosev@gmail.com> - 2020-03-12 17:45 +0200
  Re: Languages with optional spaces "Ev. Drikos" <drikosev@gmail.com> - 2020-02-23 12:33 +0200
    Re: Languages with optional spaces Martin Ward <martin@gkc.org.uk> - 2020-02-25 17:00 +0000
      Re: Languages with optional spaces "Ev. Drikos" <drikosev@gmail.com> - 2020-02-28 13:34 +0200
    Re: Languages with optional spaces Christopher F Clark <christopher.f.clark@compiler-resources.com> - 2020-02-29 11:48 +0200
      Re: Languages with optional spaces "Ev. Drikos" <drikosev@gmail.com> - 2020-02-29 21:38 +0200
        Re: Languages with optional spaces Christopher F Clark <christopher.f.clark@compiler-resources.com> - 2020-03-01 10:07 +0200
        Re: Languages with optional spaces "Ev. Drikos" <drikosev@gmail.com> - 2020-03-01 19:41 +0200
          Re: Languages with optional spaces Christopher F Clark <christopher.f.clark@compiler-resources.com> - 2020-03-02 08:33 +0200
            Re: Languages with optional spaces "Ev. Drikos" <drikosev@gmail.com> - 2020-03-02 20:04 +0200
      Re: Languages with optional spaces Hans-Peter Diettrich <DrDiettrich1@netscape.net> - 2020-03-01 00:28 +0100
  Re: Languages with optional spaces Maury Markowitz <maury.markowitz@gmail.com> - 2020-02-25 06:11 -0800
  Re: Languages with optional spaces Kaz Kylheku <493-878-3164@kylheku.com> - 2020-02-26 08:06 +0000
  Re: Languages with optional spaces and tools Hans-Peter Diettrich <DrDiettrich1@netscape.net> - 2020-02-28 20:16 +0100
  Re: Languages with optional spaces gah4@u.washington.edu - 2020-03-02 21:12 -0800
  Re: Languages with optional spaces Gene <gene.ressler@gmail.com> - 2020-04-14 10:08 -0700
  Re: Languages with optional spaces mertesthomas@gmail.com - 2020-04-19 04:04 -0700
  Re: Languages with optional spaces aston.goldsmith@gmail.com - 2020-05-05 13:05 -0700

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