ZyX wrote:
> Consider the following script:
>
> echo strwidth(nr2char(0x1F48E))
>
> . It should display “2” because 0x1F48E is a fullwidth ruby symbol.
> But Vim actually displays “1”. This causes rendering bugs at least in
> terminal because unlike Vim terminal (Konsole) knows that ruby symbol
> occupies two display cells. Problem can be observed with the following
> script:
>
> vim -u NONE -i NONE -N --cmd 'set encoding=utf-8' -c 'call setline(".",
> ["(" . nr2char(0xFF21) . ")", "(" . nr2char(0x1F48E) . ")"])' -c 'normal! G$'
>
> . Display bug:
> http://img-fotki.yandex.ru/get/15583/9151298.5/0_af494_e6a1fc7e_orig.png:
>
> (Ａ)
> (█☐)
>
> (where third character on second line character is the inversed
> version of the first one: black box with white frame) with cursor on
> the third character on the second line in place of
>
> (Ａ)
> (Ž)
>
> with cursor on the last parenthesis. Vim version is 7.4.540 (from
> https://bitbucket.org/ZyX_I/vim/changeset/b96a442ce32c1747da2b07ca3410217ba2f38d8d).
Are these new Unicode characters? Then we need to update the tables in
mbyte.c. See the comment in utf_char2cells(). Or is this another
problem?
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