Re: syntax complexity

From	Hans-Peter Diettrich <DrDiettrich1@netscape.net>
Newsgroups	comp.compilers
Subject	Re: syntax complexity
Date	2023-02-16 12:03 +0100
Organization	Compilers Central
Message-ID	<23-02-047@comp.compilers> (permalink)
References	<23-02-045@comp.compilers>

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On 2/16/23 12:08 AM, gah4 wrote:
> I started this in another thread, but I think it deserves its own.
>
> The question is, how does one measure syntax complexity,

In the original thread I was missing more specific distinctions:
- tools: flex/bison, ANTLR, CoCo/R...
- parser types: LL, LR, LF, LALR...
-   or(?): recursive-descent, shift-reduce...
- grammar syntax: BNF, EBNF...
- grammar types: context-free, -sensitive...

> with the
> specific case of Fortran vs. PL/I. (And ignoring syntax vs. semantics,
> for now.)
[...]

On that aspect I can not contribute anything, sorry :-(


> One complication I see, is that syntax complexity as seen by people,
> might be different from it as seen by programs.

How do programs recognize syntax complexity?
Number of rules and exceptions?

DoDi

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syntax complexity gah4 <gah4@u.washington.edu> - 2023-02-15 15:08 -0800
  Re: syntax complexity Thomas Koenig <tkoenig@netcologne.de> - 2023-02-16 06:32 +0000
  Re: syntax complexity Hans-Peter Diettrich <DrDiettrich1@netscape.net> - 2023-02-16 12:03 +0100
    Re: syntax complexity gah4 <gah4@u.washington.edu> - 2023-02-16 11:33 -0800
      Re: syntax complexity gah4 <gah4@u.washington.edu> - 2023-02-16 16:08 -0800
      Re: syntax complexity Roger L Costello <costello@mitre.org> - 2023-02-20 15:09 +0000
        Re: syntax complexity gah4 <gah4@u.washington.edu> - 2023-02-20 09:57 -0800
          Re: syntax complexity anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2023-02-21 08:14 +0000
            Re: syntax complexity anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2023-02-21 18:39 +0000
              Re: ireegular expressions, syntax complexity anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2023-02-22 10:55 +0000
            Re: irregular expressions, syntax complexity arnold@freefriends.org (Aharon Robbins) - 2023-02-22 08:53 +0000
            Re: irregular expressions, syntax complexity Kaz Kylheku <864-117-4973@kylheku.com> - 2023-02-23 00:34 +0000
        Re: syntax complexity George Neuner <gneuner2@comcast.net> - 2023-02-20 13:49 -0500
      syntax complexity Christopher F Clark <christopher.f.clark@compiler-resources.com> - 2023-02-21 20:54 +0200

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