2015-05-25 6:37 GMT+03:00 Michael Darling <darlingm@gmail.com>:
> I'd like to have vim in graphical mode handle colors (default fg/bg color, syntax highlighting) handle it the same as in color terminal mode.
>
> What's the easiest way to do this? Is there an option, or do I need to change my local source?
>
> Where is the code that vim either grabs a cterm of gui color? I want to set it so in gui mode, it grabs the cterm color instead.
>
> I figure this would either be in src/syntax.c, or src/eval.c.
>
> src/syntax.c::highlight_has_attr() uses modec of 'g' for GUI, 'c' for cterm, 't' for (no color) term. But, it's just returning if the given attribute exists, so it's not what I'm looking for.
>
> src/syntax.c::highlight_color() is where I was sure I found what I needed. It also uses modec, and has code like if(modec == 'g') ... color = HL_TABLE()[id - 1].sg_gui_fg; ... if(modec == 'c') ... n = HL_TABLE()[id - 1].sg_cterm_fg - 1;
>
> But, I can make the first command in highlight_color() be "exit(0)" and vim works just fine in cli or graphical mode.
>
>
> Ultimately, with the same .vimrc in vim or "vim -g"/"gvim", I just want it to look the same. I'm fine losing the #xxxxxx color ability. 256 colors is fine for me.
>
>
> I've thought about changing the hard-coded and color/*.vim files, removing everything gui*= and duplicating the cterm*=. Perhaps that's an easier way to go than changing source. I figured there would be a "if gui use gui_fg, else if cterm use cterm_fg".
ctermfg=136
Vim in cterm mode emits escape sequences which are then parsed by a
terminal. Escape sequences specify color *number* (name is trunslated
to number using some C code), not color itself and Vim knows nothing
about which color terminal will actually display.
Color scheme authors expect terminals to display specific colors for
each of the color codes: upper 240 colors are somewhat standard, lower
16 are less standard (e.g. konsole may switch ten of them in
Appearence tab in terminal profile setting, usually all 16 are
customizable).
Also note that ctermfg=Red is ctermfg=9, guifg=Red translates given
color using system/toolkit-specific function: search for
gui_mch_get_color in vim sources.
Thus if you want to translate colorschemes you need to do two things:
0. Transform color names into cterm color codes.
1. Transform cterm color codes into hexadecimal colors.
Note: it is much easier to do this with the help of the vim itself:
launch vim in terminal, do :redir => colors | hi | redir END<CR> and
parse `colors` variable which unlike colorschemes has well-defined
format and does not have cterm color names.
>
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