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From: Stefan Monnier <monnier@iro.umontreal.ca>
To: emacs-devel@gnu.org
Cc: "Štěpán Němec" <stepnem@gmail.com>
Subject: Re: master 188bd80: gnus-shorten-url: Improve and avoid args-out-of-range error
Date: Mon, 13 Apr 2020 12:51:58 -0400	[thread overview]
Message-ID: <jwvv9m3nxfa.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <20200413102417.445E520D0C@vcs0.savannah.gnu.org> ("閣?p疣 N?mec"'s message of "Mon, 13 Apr 2020 06:24:16 -0400 (EDT)")

> +;;;###autoload
> +(defun string-truncate-left (string length)
> +  "Truncate STRING to LENGTH, replacing initial surplus with \"...\"."
> +  (let ((strlen (length string)))
> +    (if (<= strlen length)
> +	string
> +      (setq length (max 0 (- length 3)))
> +      (concat "..." (substring string (max 0 (- strlen 1 length)))))))

This should of course rely on string-width rather than string-length,
but more importantly, it should obey `truncate-string-ellipsis` and
it should be "closer" to `truncate-string-to-width` (they should likely
be in the same file, and with similar sounding names).
Maybe it should even be merged with `truncate-string-to-width`.


        Stefan




       reply	other threads:[~2020-04-13 16:51 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20200413102415.23314.52412@vcs0.savannah.gnu.org>
     [not found] ` <20200413102417.445E520D0C@vcs0.savannah.gnu.org>
2020-04-13 16:51   ` Stefan Monnier [this message]
2020-04-14  9:26     ` master 188bd80: gnus-shorten-url: Improve and avoid args-out-of-range error Štěpán Němec
2020-04-14 11:55       ` Eli Zaretskii
2020-04-14 12:24         ` Štěpán Němec
2020-04-14 12:42           ` Eli Zaretskii
2020-04-14 13:48             ` Štěpán Němec
2020-04-14 17:51               ` Eli Zaretskii
2020-04-14 15:02             ` Stefan Monnier

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