neovim: port colorscheme to Lua

3 files changed, 270 insertions, 268 deletions

diff --git a/.config/nvim/colors/ocean.lua b/.config/nvim/colors/ocean.lua
new file mode 100644
index 0000000..55b3ccb
--- /dev/null
+++ b/.config/nvim/colors/ocean.lua
@@ -0,0 +1,265 @@
+vim.cmd('hi clear')
+vim.g.colors_name = 'ocean'
+
+
+
+-- Color palette {{{1
+
+local palette
+if vim.o.background == 'dark' then
+   palette = {
+      NONE      = 'NONE',
+      fg        = '#b1b1c8',
+      bg        = '#101020',
+      blue      = '#6e6eff',
+      blue_bg   = '#202050',
+      blue2     = '#70b0ff',
+      comment   = '#8686bf',
+      cursor    = '#5b5bb6',
+      gray      = '#353535',
+      gray2     = '#202020',
+      green     = '#c4e088',
+      green_bg  = '#204020',
+      orange    = '#deab52',
+      orange2   = '#ff7100',
+      red       = '#a65f49',
+      red_bg    = '#402020',
+      selection = '#303060',
+      yellow    = '#a68f49',
+      yellow2   = '#a89562',
+      yellow3   = '#5c5241',
+   }
+else
+   palette = {
+      NONE      = 'NONE',
+      fg        = '#203050',
+      bg        = '#f5f5ff',
+      blue      = '#6e6eff',
+      blue_bg   = '#202050',
+      blue2     = '#6f8fff',
+      comment   = '#a0a0e0',
+      cursor    = '#5b5bb6',
+      gray      = '#bebebe',
+      gray2     = '#171717',
+      green     = '#6f9226',
+      green_bg  = '#204020',
+      orange    = '#e79230',
+      orange2   = '#ff7100',
+      red       = '#d77253',
+      red_bg    = '#402020',
+      selection = '#f0f0d0',
+      yellow    = '#cba224',
+      yellow2   = '#af8e29',
+      yellow3   = '#c6b683',
+   }
+end
+
+
+
+-- Semantic highlight group {{{1
+
+local function hl(group_name, guifg, guibg, attr)
+   vim.cmd(('hi! ocean%s guifg=%s guibg=%s gui=%s cterm=%s'):format(
+      group_name,
+      palette[guifg],
+      palette[guibg],
+      attr,
+      attr)
+   )
+end
+
+
+
+hl('AnalysisError',            'red',     'NONE',        'underline')
+hl('AnalysisWarning',          'yellow2', 'NONE',        'underline')
+hl('Cursor',                   'fg',      'cursor',      'NONE')
+hl('DecorationBold',           'NONE',    'NONE',        'bold')
+hl('DecorationUnderlined',     'NONE',    'NONE',        'underline')
+hl('DiffAdd',                  'NONE',    'blue_bg',     'NONE')
+hl('DiffChange',               'NONE',    'green_bg',    'NONE')
+hl('DiffDelete',               'NONE',    'red_bg',      'NONE')
+hl('DiffText',                 'NONE',    'green_bg',    'underline')
+hl('Error',                    'red',     'NONE',        'NONE')
+hl('Hidden',                   'bg',      'bg',          'NONE')
+hl('Normal',                   'fg',      'bg',          'NONE')
+hl('Prompt',                   'comment', 'NONE',        'bold')
+hl('Search',                   'bg',      'yellow3',     'NONE')
+hl('Special',                  'red',     'NONE',        'NONE')
+hl('SpecialKey',               'gray',    'NONE',        'NONE')
+hl('SyntaxComment',            'comment', 'NONE',        'NONE')
+hl('SyntaxCommentSpecial',     'fg',      'NONE',        'bold')
+hl('SyntaxConstant',           'red',     'NONE',        'NONE')
+hl('SyntaxIdentifier',         'green',   'NONE',        'NONE')
+hl('SyntaxStatement',          'blue',    'NONE',        'bold')
+hl('SyntaxStatement2',         'blue',    'NONE',        'NONE')
+hl('SyntaxString',             'yellow',  'NONE',        'NONE')
+hl('SyntaxType',               'blue2',   'NONE',        'NONE')
+hl('Title',                    'orange',  'NONE',        'NONE')
+hl('UiCompletion',             'fg',      'gray',        'NONE')
+hl('UiSelection',              'NONE',    'selection',   'NONE')
+hl('UiStatusLine',             'fg',      'gray',        'NONE')
+hl('UiStatusLineModeCommand',  'bg',      'blue',        'bold')
+hl('UiStatusLineModeInsert',   'bg',      'green',       'bold')
+hl('UiStatusLineModeNormal',   'bg',      'blue',        'bold')
+hl('UiStatusLineModeOperator', 'bg',      'blue',        'bold')
+hl('UiStatusLineModeOther',    'bg',      'blue',        'bold')
+hl('UiStatusLineModeReplace',  'bg',      'red',         'bold')
+hl('UiStatusLineModeTerminal', 'bg',      'blue',        'bold')
+hl('UiStatusLineModeVisual',   'bg',      'orange',      'bold')
+hl('UiStatusLineNC',           'comment', 'gray2',       'NONE')
+hl('UiTabLine',                'fg',      'gray',        'NONE')
+hl('UiTabLineNC',              'comment', 'bg',          'NONE')
+hl('UiTarget',                 'orange2', 'NONE',        'underline')
+hl('Warning',                  'yellow2', 'NONE',        'NONE')
+
+
+
+-- Highlight link {{{1
+
+local function link(from, to)
+   vim.cmd(('hi! link %s ocean%s'):format(from, to))
+end
+
+
+
+-- :sort /, \+/
+
+-- Vim builtins {{{2
+
+link('SpellBad',       'AnalysisError')
+link('SpellCap',       'AnalysisError')
+link('SpellLocal',     'AnalysisWarning')
+link('SpellRare',      'AnalysisWarning')
+link('Cursor',         'Cursor')
+link('CursorIM',       'Cursor')
+link('Underlined',     'DecorationUnderlined')
+link('DiffAdd',        'DiffAdd')
+link('DiffChange',     'DiffChange')
+link('DiffDelete',     'DiffDelete')
+link('DiffText',       'DiffText')
+link('Error',          'Error')
+link('ErrorMsg',       'Error')
+link('EndOfBuffer',    'Hidden')
+link('MatchParen',     'Hidden')
+link('CursorLineNr',   'Normal')
+link('Normal',         'Normal')
+link('MoreMsg',        'Prompt')
+link('Question',       'Prompt')
+link('IncSearch',      'Search')
+link('Search',         'Search')
+link('Special',        'Special')
+link('NonText',        'SpecialKey')
+link('SpecialKey',     'SpecialKey')
+link('Comment',        'SyntaxComment')
+link('Folded',         'SyntaxComment')
+link('ModeMsg',        'SyntaxComment')
+link('SpecialComment', 'SyntaxCommentSpecial')
+link('Todo',           'SyntaxCommentSpecial')
+link('Constant',       'SyntaxConstant')
+link('Identifier',     'SyntaxIdentifier')
+link('Statement',      'SyntaxStatement')
+link('Operator',       'SyntaxStatement2')
+link('PreProc',        'SyntaxStatement2')
+link('Character',      'SyntaxString')
+link('String',         'SyntaxString')
+link('Directory',      'SyntaxType')
+link('Type',           'SyntaxType')
+link('Title',          'Title')
+link('WildMenu',       'Title')
+link('PMenu',          'UiCompletion')
+link('PMenuSbar',      'UiCompletion')
+link('PMenuThumb',     'UiCompletion')
+link('CursorColumn',   'UiSelection')
+link('CursorLine',     'UiSelection')
+link('FoldColumn',     'UiSelection')
+link('LineNr',         'UiSelection')
+link('PMenuSel',       'UiSelection')
+link('SignColumn',     'UiSelection')
+link('Visual',         'UiSelection')
+link('ColorColumn',    'UiSelection')
+link('VertSplit',      'UiStatusLine')
+link('WarningMsg',     'Warning')
+
+
+-- 'statusline' and 'tabline' {{{2
+
+-- Cited from ':h hl-StatusLineNC':
+-- > Note: if this is equal to "StatusLine" Vim will use "^^^" in
+-- > the status line of the current window.
+link('StatusLine',             'UiStatusLine')
+link('StatusLineNC',           'UiStatusLineNC')
+link('statusLineModeNormal',   'UiStatusLineModeNormal')
+link('statusLineModeInsert',   'UiStatusLineModeInsert')
+link('statusLineModeVisual',   'UiStatusLineModeVisual')
+link('statusLineModeOperator', 'UiStatusLineModeOperator')
+link('statusLineModeReplace',  'UiStatusLineModeReplace')
+link('statusLineModeCommand',  'UiStatusLineModeCommand')
+link('statusLineModeTerminal', 'UiStatusLineModeTerminal')
+link('statusLineModeOther',    'UiStatusLineModeOther')
+
+
+link('TabLineSel',  'UiTabLine')
+link('TabLine',     'UiTabLineNC')
+link('TabLineFill', 'Hidden')
+
+
+-- Third-party plugins {{{2
+
+link('YankRoundRegion', 'UiSelection')
+
+link('OperatorSandwichAdd',    'UiSelection')
+link('OperatorSandwichBuns',   'UiSelection')
+link('OperatorSandwichChange', 'UiSelection')
+link('OperatorSandwichDelete', 'UiSelection')
+
+link('HopNextKey', 'UiTarget')
+link('HopNextKey1', 'UiTarget')
+link('HopNextKey2', 'UiTarget')
+
+
+-- File types {{{2
+
+-- c {{{3
+
+link('cOctalZero', 'Constant')
+
+-- cpp {{{3
+
+link('cppRawStringDelimiter', 'SyntaxString')
+
+-- html {{{3
+
+link('htmlEndTag',  'SyntaxStatement2')
+link('htmlTag',     'SyntaxStatement2')
+link('htmlTagName', 'SyntaxStatement2')
+
+-- php {{{3
+
+link('phpParent',          'Normal')
+link('phpOperator',        'Normal')
+link('phpRelation',        'Normal')
+link('phpDocTags',         'SyntaxCommentSpecial')
+link('phpSpecialFunction', 'SyntaxIdentifier')
+
+-- ruby {{{3
+
+link('rubyDataDirective',   'SyntaxStatement2')
+link('rubyStringDelimiter', 'SyntaxString')
+
+-- sh {{{3
+
+link('shQuote',       'SyntaxString')
+link('shDerefSimple', 'SyntaxIdentifier')
+link('shDerefVar',    'SyntaxIdentifier')
+
+
+
+
+
+-- Utilities {{{1
+
+vim.cmd([[
+command! -bar
+   \ OceanGetHighlightGroupName
+   \ echo synIDattr(synID(line('.'), col('.'), v:false), 'name')
+]])
diff --git a/.config/nvim/colors/ocean.vim b/.config/nvim/colors/ocean.vim
deleted file mode 100644
index 3158b7e..0000000
--- a/.config/nvim/colors/ocean.vim
+++ /dev/null
@@ -1,263 +0,0 @@
-scriptencoding utf-8
-
-
-hi clear
-let g:colors_name = 'ocean'
-
-
-
-" Color palette {{{1
-
-if &background ==# 'dark'
-    let s:palette = {
-        \ 'NONE':      'NONE',
-        \ 'fg':        '#b1b1c8',
-        \ 'bg':        '#101020',
-        \ 'blue':      '#6e6eff',
-        \ 'blue-bg':   '#202050',
-        \ 'blue2':     '#70b0ff',
-        \ 'comment':   '#8686bf',
-        \ 'cursor':    '#5b5bb6',
-        \ 'gray':      '#353535',
-        \ 'gray2':     '#202020',
-        \ 'green':     '#c4e088',
-        \ 'green-bg':  '#204020',
-        \ 'orange':    '#deab52',
-        \ 'orange2':   '#ff7100',
-        \ 'red':       '#a65f49',
-        \ 'red-bg':    '#402020',
-        \ 'selection': '#303060',
-        \ 'yellow':    '#a68f49',
-        \ 'yellow2':   '#a89562',
-        \ 'yellow3':   '#5c5241',
-        \ }
-else
-    let s:palette = {
-        \ 'NONE':      'NONE',
-        \ 'fg':        '#203050',
-        \ 'bg':        '#f5f5ff',
-        \ 'blue':      '#6e6eff',
-        \ 'blue-bg':   '#202050',
-        \ 'blue2':     '#6f8fff',
-        \ 'comment':   '#a0a0e0',
-        \ 'cursor':    '#5b5bb6',
-        \ 'gray':      '#bebebe',
-        \ 'gray2':     '#171717',
-        \ 'green':     '#6f9226',
-        \ 'green-bg':  '#204020',
-        \ 'orange':    '#e79230',
-        \ 'orange2':   '#ff7100',
-        \ 'red':       '#d77253',
-        \ 'red-bg':    '#402020',
-        \ 'selection': '#f0f0d0',
-        \ 'yellow':    '#cba224',
-        \ 'yellow2':   '#af8e29',
-        \ 'yellow3':   '#c6b683',
-        \ }
-endif
-
-
-
-" Semantic highlight group {{{1
-
-function! s:hl(group_name, guifg, guibg, attr) abort
-    execute printf('hi! ocean%s guifg=%s guibg=%s gui=%s cterm=%s',
-       \ a:group_name,
-       \ s:palette[a:guifg],
-       \ s:palette[a:guibg],
-       \ a:attr,
-       \ a:attr)
-endfunction
-
-
-call s:hl('AnalysisError',            'red',     'NONE',        'underline')
-call s:hl('AnalysisWarning',          'yellow2', 'NONE',        'underline')
-call s:hl('Cursor',                   'fg',      'cursor',      'NONE')
-call s:hl('DecorationBold',           'NONE',    'NONE',        'bold')
-call s:hl('DecorationUnderlined',     'NONE',    'NONE',        'underline')
-call s:hl('DiffAdd',                  'NONE',    'blue-bg',     'NONE')
-call s:hl('DiffChange',               'NONE',    'green-bg',    'NONE')
-call s:hl('DiffDelete',               'NONE',    'red-bg',      'NONE')
-call s:hl('DiffText',                 'NONE',    'green-bg',    'underline')
-call s:hl('Error',                    'red',     'NONE',        'NONE')
-call s:hl('Hidden',                   'bg',      'bg',          'NONE')
-call s:hl('Normal',                   'fg',      'bg',          'NONE')
-call s:hl('Prompt',                   'comment', 'NONE',        'bold')
-call s:hl('Search',                   'bg',      'yellow3',     'NONE')
-call s:hl('Special',                  'red',     'NONE',        'NONE')
-call s:hl('SpecialKey',               'gray',    'NONE',        'NONE')
-call s:hl('SyntaxComment',            'comment', 'NONE',        'NONE')
-call s:hl('SyntaxCommentSpecial',     'fg',      'NONE',        'bold')
-call s:hl('SyntaxConstant',           'red',     'NONE',        'NONE')
-call s:hl('SyntaxIdentifier',         'green',   'NONE',        'NONE')
-call s:hl('SyntaxStatement',          'blue',    'NONE',        'bold')
-call s:hl('SyntaxStatement2',         'blue',    'NONE',        'NONE')
-call s:hl('SyntaxString',             'yellow',  'NONE',        'NONE')
-call s:hl('SyntaxType',               'blue2',   'NONE',        'NONE')
-call s:hl('Title',                    'orange',  'NONE',        'NONE')
-call s:hl('UiCompletion',             'fg',      'gray',        'NONE')
-call s:hl('UiSelection',              'NONE',    'selection',   'NONE')
-call s:hl('UiStatusLine',             'fg',      'gray',        'NONE')
-call s:hl('UiStatusLineModeCommand',  'bg',      'blue',        'bold')
-call s:hl('UiStatusLineModeInsert',   'bg',      'green',       'bold')
-call s:hl('UiStatusLineModeNormal',   'bg',      'blue',        'bold')
-call s:hl('UiStatusLineModeOperator', 'bg',      'blue',        'bold')
-call s:hl('UiStatusLineModeOther',    'bg',      'blue',        'bold')
-call s:hl('UiStatusLineModeReplace',  'bg',      'red',         'bold')
-call s:hl('UiStatusLineModeTerminal', 'bg',      'blue',        'bold')
-call s:hl('UiStatusLineModeVisual',   'bg',      'orange',      'bold')
-call s:hl('UiStatusLineNC',           'comment', 'gray2',       'NONE')
-call s:hl('UiTabLine',                'fg',      'gray',        'NONE')
-call s:hl('UiTabLineNC',              'comment', 'bg',          'NONE')
-call s:hl('UiTarget',                 'orange2', 'NONE',        'underline')
-call s:hl('Warning',                  'yellow2', 'NONE',        'NONE')
-
-delfunction! s:hl
-
-
-
-" Highlight link {{{1
-
-" :sort /hi! link \w\+ \+/
-
-" Vim builtins {{{2
-
-hi! link SpellBad       oceanAnalysisError
-hi! link SpellCap       oceanAnalysisError
-hi! link SpellLocal     oceanAnalysisWarning
-hi! link SpellRare      oceanAnalysisWarning
-hi! link Cursor         oceanCursor
-hi! link CursorIM       oceanCursor
-hi! link Underlined     oceanDecorationUnderlined
-hi! link DiffAdd        oceanDiffAdd
-hi! link DiffChange     oceanDiffChange
-hi! link DiffDelete     oceanDiffDelete
-hi! link DiffText       oceanDiffText
-hi! link Error          oceanError
-hi! link ErrorMsg       oceanError
-hi! link EndOfBuffer    oceanHidden
-hi! link MatchParen     oceanHidden
-hi! link CursorLineNr   oceanNormal
-hi! link Normal         oceanNormal
-hi! link PMenu          oceanUiCompletion
-hi! link PMenuSbar      oceanUiCompletion
-hi! link PMenuThumb     oceanUiCompletion
-hi! link MoreMsg        oceanPrompt
-hi! link Question       oceanPrompt
-hi! link IncSearch      oceanSearch
-hi! link Search         oceanSearch
-hi! link CursorColumn   oceanUiSelection
-hi! link CursorLine     oceanUiSelection
-hi! link FoldColumn     oceanUiSelection
-hi! link LineNr         oceanUiSelection
-hi! link PMenuSel       oceanUiSelection
-hi! link SignColumn     oceanUiSelection
-hi! link Visual         oceanUiSelection
-hi! link Special        oceanSpecial
-hi! link NonText        oceanSpecialKey
-hi! link SpecialKey     oceanSpecialKey
-hi! link VertSplit      oceanUiStatusLine
-hi! link Comment        oceanSyntaxComment
-hi! link Folded         oceanSyntaxComment
-hi! link ModeMsg        oceanSyntaxComment
-hi! link SpecialComment oceanSyntaxCommentSpecial
-hi! link Todo           oceanSyntaxCommentSpecial
-hi! link Constant       oceanSyntaxConstant
-hi! link Identifier     oceanSyntaxIdentifier
-hi! link Statement      oceanSyntaxStatement
-hi! link Operator       oceanSyntaxStatement2
-hi! link PreProc        oceanSyntaxStatement2
-hi! link Character      oceanSyntaxString
-hi! link String         oceanSyntaxString
-hi! link Directory      oceanSyntaxType
-hi! link Type           oceanSyntaxType
-hi! link Title          oceanTitle
-hi! link WildMenu       oceanTitle
-hi! link ColorColumn    oceanUiSelection
-hi! link WarningMsg     oceanWarning
-
-
-" 'statusline' and 'tabline' {{{2
-
-" Cited from ':h hl-StatusLineNC':
-" > Note: if this is equal to "StatusLine" Vim will use "^^^" in
-" > the status line of the current window.
-hi! link StatusLine             oceanUiStatusLine
-hi! link StatusLineNC           oceanUiStatusLineNC
-hi! link statusLineModeNormal   oceanUiStatusLineModeNormal
-hi! link statusLineModeInsert   oceanUiStatusLineModeInsert
-hi! link statusLineModeVisual   oceanUiStatusLineModeVisual
-hi! link statusLineModeOperator oceanUiStatusLineModeOperator
-hi! link statusLineModeReplace  oceanUiStatusLineModeReplace
-hi! link statusLineModeCommand  oceanUiStatusLineModeCommand
-hi! link statusLineModeTerminal oceanUiStatusLineModeTerminal
-hi! link statusLineModeOther    oceanUiStatusLineModeOther
-
-
-hi! link TabLineSel  oceanUiTabLine
-hi! link TabLine     oceanUiTabLineNC
-hi! link TabLineFill oceanHidden
-
-
-" Third-party plugins {{{2
-
-hi! link YankRoundRegion oceanUiSelection
-
-hi! link OperatorSandwichAdd    oceanUiSelection
-hi! link OperatorSandwichBuns   oceanUiSelection
-hi! link OperatorSandwichChange oceanUiSelection
-hi! link OperatorSandwichDelete oceanUiSelection
-
-hi! link HopNextKey oceanUiTarget
-hi! link HopNextKey1 oceanUiTarget
-hi! link HopNextKey2 oceanUiTarget
-
-
-" File types {{{2
-
-" c {{{3
-
-hi! link cOctalZero oceanConstant
-
-" cpp {{{3
-
-hi! link cppRawStringDelimiter oceanSyntaxString
-
-" html {{{3
-
-hi! link htmlEndTag  oceanSyntaxStatement2
-hi! link htmlTag     oceanSyntaxStatement2
-hi! link htmlTagName oceanSyntaxStatement2
-
-" php {{{3
-
-hi! link phpParent          oceanNormal
-hi! link phpOperator        oceanNormal
-hi! link phpRelation        oceanNormal
-hi! link phpDocTags         oceanSyntaxCommentSpecial
-hi! link phpSpecialFunction oceanSyntaxIdentifier
-
-" ruby {{{3
-
-hi! link rubyDataDirective   oceanSyntaxStatement2
-hi! link rubyStringDelimiter oceanSyntaxString
-
-
-
-
-
-" sh {{{3
-
-hi! link shQuote oceanSyntaxString
-hi! link shDerefSimple oceanSyntaxIdentifier
-hi! link shDerefVar oceanSyntaxIdentifier
-
-
-
-
-
-" Utilities {{{1
-
-command! -bar
-    \ OceanGetHighlightGroupName
-    \ echo synIDattr(synID(line('.'), col('.'), v:false), 'name')
diff --git a/.config/nvim/init.lua b/.config/nvim/init.lua
index 6ec1ff1..135550f 100644
--- a/.config/nvim/init.lua
+++ b/.config/nvim/init.lua
@@ -1150,12 +1150,12 @@ command! -bar -range=%
 
 vim.cmd([[
 try
-    colorscheme ocean
+   colorscheme ocean
 catch
-    " Loading colorscheme failed.
-    " The color scheme, "desert", is one of the built-in ones. Probably, it
-    " will be loaded without any errors.
-    colorscheme desert
+   " Loading colorscheme failed.
+   " The color scheme, "desert", is one of the built-in ones. Probably, it
+   " will be loaded without any errors.
+   colorscheme desert
 endtry
 ]])