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bug#10494: 24.0.92; Syntax table and non-ASCII character interaction


From: npostavs
Subject: bug#10494: 24.0.92; Syntax table and non-ASCII character interaction
Date: Wed, 10 Aug 2016 20:29:05 -0400
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/25.1 (gnu/linux)

tags 10494 confirmed
found 10494 25.1
quit

I confirm this is still the case in 25.1-rc1.

Aaron Ecay <address@hidden> writes:
>
> This bug relates to setting a non-ASCII character punctuation character
> (U+2019, which is ’) to have word syntax, and using word-motion
> commands.  Here’s a recipe from emacs -Q:
>
> M-x text-mode
> don't
> C-a M-f
>   -> (as expected, the cursor moves to the end of the line)
> RET RET
> don M-x ucs-insert 2019 t

This should now use insert-char (C-x 8 RET) instead of ucs-insert.

>   -> (text in buffer: "don’t")
> C-a M-f
>   -> (cursor is on the quotation mark, as expected)
> M-: (modify-syntax-entry ?’ "w" text-mode-syntax-table)
> C-a M-f
>   -> (BUG: cursor is on quotation mark, which should count as part of the 
> word)
>
> If you re-run the experiment substituting - for ’ everywhere, there is a
> difference in behavior – the cursor moves to the end of the line after
> the call to modify-syntax-entry, as expected.  This leads me to think
> that the problem has to do with ’ being outside the ASCII charset.






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