On 01/08/10 16:06, Bram Moolenaar wrote:
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.
Well, previously (in the Ctrl-R case) I had done it, but the Russian
characters in my text quoted in your answer were totally garbled (wrong
Content-Type charset maybe?). You could have reused the same example
text, or any text with any combining character; I used the combining
acute accent U+0301; there are other combining codepoints in the same
Unicode block.
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?
Yes I do. This way I can easily correct an error if I notice that I have
put the accent on the wrong syllable, or the wrong diacritic on the
right letter.
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.
No, the tilde now works correctly, both in Normal mode (when toggling
one character at a time, with 'tildeop' at its default off setting), and
in linewise Visual mode (when toggling a full line in one operation).
The length of the Visual text operated upon is now also correct.
Best regards,
Tony.
--
"It took me fifteen years to discover that I had no talent for writing,
but I couldn't give up because by that time I was too famous."
-- Robert Benchly
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