From: Brent Goodrick <bgoodr@gmail.com>
To: Andreas Schwab <schwab@linux-m68k.org>
Cc: 23795-done@debbugs.gnu.org
Subject: bug#23795: 24.5; rx eval on variable gives symbol error
Date: Sat, 18 Jun 2016 09:21:03 -0700 [thread overview]
Message-ID: <CAJj=8EEFFdtTM=xiH-bdCmoPyPqeDS=GamnmHuj3QOXhirGYUA@mail.gmail.com> (raw)
In-Reply-To: <87lh228o7c.fsf@linux-m68k.org>
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Understood. Thanks Andreas.
On Sat, Jun 18, 2016 at 9:19 AM, Andreas Schwab <schwab@linux-m68k.org>
wrote:
> bgoodr@gmail.com writes:
>
> > Insert this into a .el file and load it in using emacs -Q:
> >
> > (let ((page-name "the page"))
> > (let ((regexp
> > ;; (concat "[[" page-name "]]")
> > (rx "[[" (eval page-name) "]]" )))
> > regexp
> > ))
>
> Since rx is a macro it cannot refer to runtime values. You need to use
> rx-to-string to construct the regexp at run time. Or just use concat as
> in the comment.
>
> Andreas.
>
> --
> Andreas Schwab, schwab@linux-m68k.org
> GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
> "And now for something completely different."
>
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prev parent reply other threads:[~2016-06-18 16:21 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-18 15:49 bug#23795: 24.5; rx eval on variable gives symbol error bgoodr
2016-06-18 16:13 ` Noam Postavsky
2016-06-18 16:15 ` Brent Goodrick
2016-06-18 16:19 ` Andreas Schwab
2016-06-18 16:21 ` Brent Goodrick [this message]
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