GNU bug report logs - #36459
27.0.50; octave-mode ElDoc support bug

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From: Mauro Aranda <maurooaranda <at> gmail.com>
To: Dmitry Gutov <dgutov <at> yandex.ru>
Cc: 36459 <at> debbugs.gnu.org, Leo Liu <sdl.web <at> gmail.com>
Subject: bug#36459: 27.0.50; octave-mode ElDoc support bug
Date: Wed, 31 Jul 2019 11:43:29 -0300

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My GNU Octave version is 4.0.0
In 4.0.x versions, the output of print_usage is like this:
 -- Mapping Function: abs (Z)

That's why the regexp works.  You can see an example in:
https://octave.org/doc/v4.0.0/Raising-Errors.html#Raising-Errors

Looking at the doc sources, it looks like the output was the same in GNU
Octave 3.

Now, after 4.0.x, namely 4.2.x, it seems that the output has changed to
what you see, and an example can be seen here:
https://octave.org/doc/v4.2.0/Raising-Errors.html#Raising-Errors

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