Tony Mechelynck wrote:
> Using latest Vim 7.3c, compiled 2010-07-31 21:22:42 +0200 immediately
> after pulling.
>
> Hitting ~ (tilde) on a letter + combining character gives faulty result.
>
>
> Reproducible: Always.
>
>
> Steps to reproduce(1):
> 1. Type text in some case-sensitive script (not Hebrew or Arabic) with
> some combining characters in it (e.g. Russian with combining acute
> accent(s)).
> 2. In Normal mode, move the cursor over a letter with combining accent
> and hit ~ (tilde).
>
> Expected result:
> The letter should change case and keep its combining accent.
>
> Actual result:
> The accented letter is replaced by both its upper- and lower-case
> variants, without the accent.
I'll fix this. Note that for the example it's very useful to give the
actual text to reproduce it on.
> Steps to reproduce(2)
> 1. Like before, type text with some combining characters in it.
> 2. Select a section of text (I used V for single-line linewise-visual).
> 3. Hit the tilde.
>
> Expected result:
> The text should change case, with the combining characters remaining
> where they belong.
>
> Actual result:
> - Accented characters become doubled, losing their accent.
> - At the end of the selection, the last characters (as many as there
> were accents) are not case-toggled.
I can't reproduce doubling the characters. Do you have 'delcombine' set
perhaps?
> Additional info:
> I haven't tested what happens with _several_ combining characters on a
> single letter (e.g. non-precomposed Classical Greek with breathing,
> accent and/or iota-subscript/adscript on the same vowel), or with
> spacing and combining characters of different byte-length (Cyrillic
> letters and combining-acute are all two bytes per codepoint in UTF-8).
> Neither did I check that ~ in case-neutral text with combining
> characters (such as vocalised Semitic text) is a no-op.
I have fixed one problem. Please check if you can still reproduce the
others. If so, please include the text.
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