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Subject: bug#60196: 29.0.60; re-builder should read all forms for the rx syntax
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Date: Fri, 30 Dec 2022 13:28:14 +0100
To: Kai Ma <justksqsf@HIDDEN>
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The handling of rx input in re-builder is indeed unsatisfactory. We =
could adopt your proposed solution:
> Ideally, re-builder should allow users to simply write
>=20
> "<i>" (group (*? anychar)) "</i>"
which would be a definite improvement. We could also accept a Lisp =
expression that is evaluated, so that you'd write
(rx "<i>" (group (*? anychar)) "</i>")
On the surface this looks more verbose, but since re-builder itself =
would provide the `(rx )` boilerplate, there wouldn't actually be any =
more typing. The main advantage would be that regexps could be built up =
from smaller pieces:
(rx-let ((spaces (* " "))
(identifier (: alpha (* alnum))))
(rx identifier spaces "->" spaces identifier))
Either would be a definite improvement to the current rather strange =
re-builder behaviour with respect to rx input. Any preference?
bug-gnu-emacs@HIDDEN:bug#60196; Package emacs.
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From: Kai Ma <justksqsf@HIDDEN>
To: bug-gnu-emacs@HIDDEN
Subject: 29.0.60; re-builder should read all forms for the rx syntax
Date: Mon, 19 Dec 2022 17:02:27 +0800
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Severity: wishlist
re-builder (rx syntax) currently cannot read multiple forms. This
results in suboptimal user experience. For example, even though
(rx "<i>" (group (*? anychar)) "</i>")
is perfectly fine, but in re-builder, one has to write it as follows:
'(and "<i>" (group (*? anychar)) "</i>")
Ideally, re-builder should allow users to simply write
"<i>" (group (*? anychar)) "</i>"
(The relevant function seems to be 'reb-cook-regexp'.)
Kai
Kai Ma <justksqsf@HIDDEN>:bug-gnu-emacs@HIDDEN.
Full text available.bug-gnu-emacs@HIDDEN:bug#60196; Package emacs.
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