Hayaki Saito wrote:
> This patch detects East Asian ambiguous width (UAX #11) state of
> terminals at the start-up time.
> It makes Vim automatically set "ambiwidth" option to "double" when it
> is running inside some CJK terminals,
> This feature works only when Vim is compiled with +multi_byte and
> +termresponse feature, and termcap option t_u7 should be set to
> "\e[6n".
>
> I tested it on the following terminals.
>
> - xterm with "-cjk" option
> - gnome-terminal(VTE) with environment "VTE_CJK_WIDTH=1"
> - mlterm with "--ac=2" option
> - MinTTY with CJK font environment
> - GNU Screen version 4.01.00devel with "cjkwidth" command and let
> &t_u7="\e[6n"'
> - TeraTerm
> - RLogin
> - Poderosa
> - iTerm2 with "Treat ambiguous-width characters as double width" option
> - Terminal.app(OSX 10.8) with CJK width option
>
> if $TERM is 'screen', termcap option t_u7 is empty by default.
> So we need to add the following code in vimrc for testing it.
>
> if !has('gui_running') && has('vim_starting') && exists('+t_u7') && $TERM =~
> 'screen'
> let &t_u7 = "\e[6n"
> endif
Thanks! I'll add it to the todo list.
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