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From: Eli Zaretskii <eliz@gnu.org>
To: "Štěpán Němec" <stepnem@gmail.com>
Cc: mattiase@acm.org, emacs-devel@gnu.org
Subject: Re: Regexp bytecode disassembler
Date: Sun, 22 Mar 2020 18:55:53 +0200	[thread overview]
Message-ID: <83imiwcorq.fsf@gnu.org> (raw)
In-Reply-To: <87sgi05u2w.fsf@gmail.com> (message from Štěpán Němec on Sun, 22 Mar 2020 15:43:03 +0100)

> From: Štěpán Němec <stepnem@gmail.com>
> Cc: mattiase@acm.org,  emacs-devel@gnu.org
> Date: Sun, 22 Mar 2020 15:43:03 +0100
> 
> IMHO the complexity of `pcase' is completely transparent in this case:

I disagree.  And please also consider the easiness (or lack thereof)
of changing the code, not just reading it.  pcase is far from being
simple, its syntax is tricky to understand fully.  it's no accident
that it took us 2-3 iterations and many discussions to converge on
what is now its documentation.  Just the volume of that documentation
should tell you how NOT transparent is its complexity.

> you can easily check the expansion e.g. with M-x
> pp-macroexpand-last-sexp

So you are saying that reading code should be accompanied by expanding
the macros it uses?  (Assuming the reader even knows about
pp-macroexpand-last-sexp.)  Seriously, I don't think this is something
I'd call "code that explains itself".  In any language.



  reply	other threads:[~2020-03-22 16:55 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-20 12:27 Regexp bytecode disassembler Mattias Engdegård
2020-03-20 12:58 ` Andreas Schwab
2020-03-20 14:34 ` Eli Zaretskii
2020-03-21 16:52   ` Mattias Engdegård
2020-03-21 19:19     ` Eli Zaretskii
2020-03-21 20:16       ` Štěpán Němec
2020-03-21 20:30         ` Eli Zaretskii
2020-03-21 20:40           ` Mattias Engdegård
2020-03-21 20:44           ` Štěpán Němec
2020-03-22 14:12             ` Eli Zaretskii
2020-03-22 14:43               ` Štěpán Němec
2020-03-22 16:55                 ` Eli Zaretskii [this message]
2020-03-22 17:16                   ` Štěpán Němec
2020-03-22 17:30                     ` Eli Zaretskii
2020-03-22 18:34                       ` Paul Eggert
2020-03-22 18:36                       ` Dmitry Gutov
2020-03-21 20:50           ` Dmitry Gutov
2020-03-21 23:58           ` Drew Adams
2020-03-22  0:02             ` Drew Adams
2020-03-21 20:37       ` Mattias Engdegård
2020-03-22  3:28         ` Eli Zaretskii
2020-03-22  9:23           ` Mattias Engdegård
2020-03-22 10:37             ` Eli Zaretskii
2020-03-22 15:24               ` Mattias Engdegård
2020-03-22 17:06                 ` Eli Zaretskii
2020-03-22 19:39                   ` Mattias Engdegård
2020-03-22 20:12                     ` Eli Zaretskii
2020-03-22 20:22                     ` Corwin Brust
2020-03-20 15:39 ` Pip Cet
2020-03-21 16:56   ` Mattias Engdegård

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