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nix-config/.config/nvim/colors/znake.vim
Dave Gallant 8cffc0e4ae Switch vim colorscheme to gruvbox (#23)
2020-07-15 09:28:34 -04:00

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" znake - Full Colour and 256 Colour
" http://www.artathack.com
"
" Hex colour conversion functions borrowed from the theme "Desert256""
" Pretty much stolen from the Tomorrow theme https://github.com/chriskempson/tomorrow-theme
" Default GUI Colours
let s:white = "eaeaea"
let s:black = "000000"
let s:red = "da4939"
let s:darkred = "2a0014"
let s:orange = "ffc66d"
let s:brown = "cc7833"
let s:yellow = "ffc66d"
let s:green = "a5c261"
"let s:green = "87af00"
let s:darkgreen = "519f50"
let s:blue = "6d9cbe"
let s:purple = "c397d8"
let s:instance = "D0D0FF"
let s:middlegrey = "4d5057"
let s:pink = "ff0080"
let s:darkpink = "6f0037"
let s:grey1 = "535353"
let s:grey2 = "191919"
let s:grey3 = "868686"
let s:darkgrey = "0b0b0b"
let s:comment = "2a5680"
let s:linenr = "333333"
let s:linecolumn = "230012"
let s:diffgreen = "033108"
let s:diffred = "5e0a06"
let s:diffchange = "19344e"
let s:difftext = "5b3616"
let s:wikired = "ff6666"
let s:wikiorange = "ff8000"
let s:wikiyellow = "ffff66"
let s:wikiaqua = "66ffcc"
let s:wikigreen = "008040"
let s:wikiblue = "66ccff"
set background=dark
hi clear
syntax reset
let g:colors_name = "znake"
if has("gui_running") || &t_Co == 88 || &t_Co == 256
" Returns an approximate grey index for the given grey level
fun <SID>grey_number(x)
if &t_Co == 88
if a:x < 23
return 0
elseif a:x < 69
return 1
elseif a:x < 103
return 2
elseif a:x < 127
return 3
elseif a:x < 150
return 4
elseif a:x < 173
return 5
elseif a:x < 196
return 6
elseif a:x < 219
return 7
elseif a:x < 243
return 8
else
return 9
endif
else
if a:x < 14
return 0
else
let l:n = (a:x - 8) / 10
let l:m = (a:x - 8) % 10
if l:m < 5
return l:n
else
return l:n + 1
endif
endif
endif
endfun
" Returns the actual grey level represented by the grey index
fun <SID>grey_level(n)
if &t_Co == 88
if a:n == 0
return 0
elseif a:n == 1
return 46
elseif a:n == 2
return 92
elseif a:n == 3
return 115
elseif a:n == 4
return 139
elseif a:n == 5
return 162
elseif a:n == 6
return 185
elseif a:n == 7
return 208
elseif a:n == 8
return 231
else
return 255
endif
else
if a:n == 0
return 0
else
return 8 + (a:n * 10)
endif
endif
endfun
" Returns the palette index for the given grey index
fun <SID>grey_colour(n)
if &t_Co == 88
if a:n == 0
return 16
elseif a:n == 9
return 79
else
return 79 + a:n
endif
else
if a:n == 0
return 16
elseif a:n == 25
return 231
else
return 231 + a:n
endif
endif
endfun
" Returns an approximate colour index for the given colour level
fun <SID>rgb_number(x)
if &t_Co == 88
if a:x < 69
return 0
elseif a:x < 172
return 1
elseif a:x < 230
return 2
else
return 3
endif
else
if a:x < 75
return 0
else
let l:n = (a:x - 55) / 40
let l:m = (a:x - 55) % 40
if l:m < 20
return l:n
else
return l:n + 1
endif
endif
endif
endfun
" Returns the actual colour level for the given colour index
fun <SID>rgb_level(n)
if &t_Co == 88
if a:n == 0
return 0
elseif a:n == 1
return 139
elseif a:n == 2
return 205
else
return 255
endif
else
if a:n == 0
return 0
else
return 55 + (a:n * 40)
endif
endif
endfun
" Returns the palette index for the given R/G/B colour indices
fun <SID>rgb_colour(x, y, z)
if &t_Co == 88
return 16 + (a:x * 16) + (a:y * 4) + a:z
else
return 16 + (a:x * 36) + (a:y * 6) + a:z
endif
endfun
" Returns the palette index to approximate the given R/G/B colour levels
fun <SID>colour(r, g, b)
" Get the closest grey
let l:gx = <SID>grey_number(a:r)
let l:gy = <SID>grey_number(a:g)
let l:gz = <SID>grey_number(a:b)
" Get the closest colour
let l:x = <SID>rgb_number(a:r)
let l:y = <SID>rgb_number(a:g)
let l:z = <SID>rgb_number(a:b)
if l:gx == l:gy && l:gy == l:gz
" There are two possibilities
let l:dgr = <SID>grey_level(l:gx) - a:r
let l:dgg = <SID>grey_level(l:gy) - a:g
let l:dgb = <SID>grey_level(l:gz) - a:b
let l:dgrey = (l:dgr * l:dgr) + (l:dgg * l:dgg) + (l:dgb * l:dgb)
let l:dr = <SID>rgb_level(l:gx) - a:r
let l:dg = <SID>rgb_level(l:gy) - a:g
let l:db = <SID>rgb_level(l:gz) - a:b
let l:drgb = (l:dr * l:dr) + (l:dg * l:dg) + (l:db * l:db)
if l:dgrey < l:drgb
" Use the grey
return <SID>grey_colour(l:gx)
else
" Use the colour
return <SID>rgb_colour(l:x, l:y, l:z)
endif
else
" Only one possibility
return <SID>rgb_colour(l:x, l:y, l:z)
endif
endfun
" Returns the palette index to approximate the 'rrggbb' hex string
fun <SID>rgb(rgb)
let l:r = ("0x" . strpart(a:rgb, 0, 2)) + 0
let l:g = ("0x" . strpart(a:rgb, 2, 2)) + 0
let l:b = ("0x" . strpart(a:rgb, 4, 2)) + 0
return <SID>colour(l:r, l:g, l:b)
endfun
" Sets the highlighting for the given group
fun <SID>X(group, fg, bg, attr)
if a:fg != ""
exec "hi " . a:group . " guifg=#" . a:fg . " ctermfg=" . <SID>rgb(a:fg)
endif
if a:bg != ""
exec "hi " . a:group . " guibg=#" . a:bg . " ctermbg=" . <SID>rgb(a:bg)
endif
if a:attr != ""
exec "hi " . a:group . " gui=" . a:attr . " cterm=" . a:attr
endif
endfun
" Vim Highlighting
call <SID>X("Normal", s:white, s:black, "")
call <SID>X("darkgreyNr", s:grey1, "", "")
call <SID>X("NonText", s:darkred, "", "")
call <SID>X("SpecialKey", s:darkred, "", "")
call <SID>X("Search", s:black, s:blue, "")
call <SID>X("Tabdarkgrey", s:white, s:black, "reverse")
call <SID>X("Statusdarkgrey", s:grey2, s:yellow, "reverse")
call <SID>X("StatusdarkgreyNC", s:grey2, s:grey3, "reverse")
call <SID>X("VertSplit", s:middlegrey, s:middlegrey, "none")
call <SID>X("Visual", "", s:darkpink, "")
"call <SID>X("Visual", "", s:black, "reverse")
call <SID>X("Directory", s:blue, "", "")
call <SID>X("ModeMsg", s:green, "", "")
call <SID>X("MoreMsg", s:green, "", "")
call <SID>X("Question", s:green, "", "")
call <SID>X("WarningMsg", s:red, "", "")
call <SID>X("MatchParen", "", s:black, "reverse")
call <SID>X("Folded", s:comment, s:black, "")
call <SID>X("FoldColumn", "", s:black, "")
if version >= 700
call <SID>X("Cursor", "", s:pink, "none")
call <SID>X("LineNr", s:linenr, "", "none")
call <SID>X("Cursordarkgrey", "", s:darkred, "none")
call <SID>X("CursorColumn", "", s:darkred, "none")
call <SID>X("CursorLine", "", s:linecolumn, "none")
call <SID>X("CursorLineNr", s:pink, "", "none")
call <SID>X("PMenu", s:white, s:darkred, "none")
call <SID>X("PMenuSel", s:white, s:darkred, "reverse")
end
if version >= 703
call <SID>X("ColorColumn", "", s:darkgrey, "none")
end
call <SID>X("DiffAdd", "", s:diffgreen, "")
call <SID>X("DiffChange", "",s:diffchange, "")
call <SID>X("DiffText", "", s:difftext, "")
call <SID>X("DiffDelete", s:diffred, s:diffred, "")
" Standard Highlighting
call <SID>X("Comment", s:comment, "", "")
call <SID>X("Todo", s:comment, s:black, "")
call <SID>X("Title", s:white, "", "")
call <SID>X("Identifier", s:blue, "", "none")
call <SID>X("Statement", s:white, "", "")
call <SID>X("Repeat", s:white, "", "")
call <SID>X("Number", s:yellow, "", "")
call <SID>X("Structure", s:red, "", "")
call <SID>X("Function", s:orange, "", "")
call <SID>X("Constant", s:blue, "", "")
call <SID>X("String", s:green, "", "")
call <SID>X("Special", s:red, "", "")
call <SID>X("PreProc", s:brown, "", "")
call <SID>X("Operator", s:brown, "", "none")
call <SID>X("Type", s:blue, "", "none")
call <SID>X("Define", s:brown, "", "none")
call <SID>X("Include", s:blue, "", "")
call <SID>X("Ignore", "666666", "", "")
call <SID>X("Keyword", s:orange, "", "")
call <SID>X("Conditional", s:brown, "", "")
"call <SID>X("Keyword", s:red, s:black, "")
"call <SID>X("Conditional", s:white, "", "")
" Vim Highlighting
call <SID>X("vimCommand", s:white, "", "none")
" C Highlighting
call <SID>X("cType", s:yellow, "", "")
call <SID>X("cStorageClass", s:purple, "", "")
call <SID>X("cConditional", s:purple, "", "")
call <SID>X("cRepeat", s:purple, "", "")
" PHP Highlighting
call <SID>X("phpVarSelector", s:red, "", "")
call <SID>X("phpKeyword", s:purple, "", "")
call <SID>X("phpRepeat", s:purple, "", "")
call <SID>X("phpConditional", s:purple, "", "")
call <SID>X("phpStatement", s:purple, "", "")
call <SID>X("phpMemberSelector", s:white, "", "")
" CoffeeScript Highlighting
call <SID>X("coffeeInterpDelim", s:darkgreen, "", "")
call <SID>X("SignColumn", "", s:black, "")
" Ruby Highlighting
call <SID>X("rubySymbol", s:blue, "", "")
call <SID>X("rubyConstant", s:red, "", "")
call <SID>X("rubyKeyword", s:red, "", "")
call <SID>X("rubyBeginEnd", s:brown, "", "")
call <SID>X("rubyAttribute", s:brown, "", "")
call <SID>X("rubyControl", s:brown, "", "")
call <SID>X("rubyInclude", s:blue, "", "")
call <SID>X("rubyLocalVariableOrMethod", s:brown, "", "")
call <SID>X("rubyStringDelimiter", s:green, "", "")
call <SID>X("rubyInterpolation", s:darkgreen, "", "")
call <SID>X("rubyInterpolationDelimiter", s:darkgreen, "", "")
call <SID>X("rubyConditional", s:brown, "", "")
call <SID>X("rubyRepeat", s:brown, "", "")
call <SID>X("rubyBlockParameter", s:purple, "", "")
call <SID>X("rubyClass", s:brown, "", "")
call <SID>X("rubyClassVariable", s:red, "", "")
call <SID>X("rubyFunction", s:orange, "", "")
call <SID>X("rubyInstanceVariable", s:instance, "", "")
call <SID>X("railsClass", s:red, "", "")
"call <SID>X("rubyBlock", s:brown, "", "")
"call <SID>X("rubyDoBlock", s:brown, "", "")
" Python Highlighting
call <SID>X("pythonInclude", s:purple, "", "")
call <SID>X("pythonStatement", s:purple, "", "")
call <SID>X("pythonConditional", s:purple, "", "")
call <SID>X("pythonFunction", s:blue, "", "")
" JavaScript Highlighting
"call <SID>X("javaScriptBraces", s:white, "", "")
call <SID>X("javaScriptFunction", s:brown, "", "")
call <SID>X("javaScriptNumber", s:yellow, "", "")
call <SID>X("javaScriptThis", s:red, "", "")
" HTML Highlighting
call <SID>X("htmlTag", s:orange, "", "")
call <SID>X("htmlEndTag", s:orange, "", "")
call <SID>X("htmlTagName", s:orange, "", "")
call <SID>X("htmlArg", s:brown, "", "")
call <SID>X("htmlScriptTag", s:orange, "", "")
call <SID>X("htmlLink", s:blue, "", "")
"XML Highlighting
call <SID>X("xmlTag", s:orange, "", "")
call <SID>X("xmlEndTag", s:orange, "", "")
call <SID>X("VimwikiHeader1", s:wikired, "", "")
call <SID>X("VimwikiHeader2", s:wikiorange, "", "")
call <SID>X("VimwikiHeader3", s:wikiyellow, "", "")
call <SID>X("VimwikiHeader4", s:wikiaqua, "", "")
call <SID>X("VimwikiHeader5", s:wikigreen, "", "")
call <SID>X("VimwikiHeader6", s:wikiblue, "", "")
" Delete Functions
delf <SID>X
delf <SID>rgb
delf <SID>colour
delf <SID>rgb_colour
delf <SID>rgb_level
delf <SID>rgb_number
delf <SID>grey_colour
delf <SID>grey_level
delf <SID>grey_number
endif
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