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bug#22303: 24.5; toggle-truncate-lines not mentioned in docstring for tr
bug#22303: 24.5; toggle-truncate-lines not mentioned in docstring for truncate-lines nor in elisp manual
Mon, 04 Jan 2016 19:11:31 +0200
> From: phs <address@hidden>
> Date: Mon, 4 Jan 2016 10:30:17 +0100
> In general, changing the value of `truncate-lines' should be done via
> `toggle-truncate-lines' not by `(setq truncate-lines ..)'
> However the documentation string for `truncate-lines' does not mention
> the existence of `toggle-truncate-lines', nor is it mentioned in the
> elisp manual (section "37.3 Truncation").
> It seems that modifying `truncate-lines' with just `(setq ..)' may
> suffer from redisplay problems, see
> http://emacs.stackexchange.com/questions/19228 for a way to trip the
> problem from emacs -Q.
Thanks for pointing this out.
The answers on stackexchange are incorrect: there's nothing wrong with
setting 'truncate-lines' directly. The situation described there
revealed a bug, which I just fixed for the next release.
I see no need to change the documentation in this regard.