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.
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.
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.
Best regards,
Tony.
--
Brady's First Law of Problem Solving:
When confronted by a difficult problem, you can solve it more
easily by reducing it to the question, "How would the Lone Ranger have
handled this?"
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