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airline
highlighter.vim
Change from vim-powerline to vim-airline with powerlineish theme.
David Blume
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83d6ad7
at 2018-04-26 21:10:19
highlighter.vim
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" MIT License. Copyright (c) 2013-2018 Bailey Ling et al. " vim: et ts=2 sts=2 sw=2 scriptencoding utf-8 let s:is_win32term = (has('win32') || has('win64')) && \ !has('gui_running') && \ (empty($CONEMUBUILD) || &term !=? 'xterm') && \ !(exists("+termguicolors") && &termguicolors) let s:separators = {} let s:accents = {} let s:hl_groups = {} function! s:gui2cui(rgb, fallback) if a:rgb == '' return a:fallback elseif match(a:rgb, '^\%(NONE\|[fb]g\)$') > -1 return a:rgb endif let rgb = map(split(a:rgb[1:], '..\zs'), '0 + ("0x".v:val)') return airline#msdos#round_msdos_colors(rgb) endfunction function! s:get_syn(group, what) if !exists("g:airline_gui_mode") let g:airline_gui_mode = airline#init#gui_mode() endif let color = '' if hlexists(a:group) let color = synIDattr(synIDtrans(hlID(a:group)), a:what, g:airline_gui_mode) endif if empty(color) || color == -1 " should always exists let color = synIDattr(synIDtrans(hlID('Normal')), a:what, g:airline_gui_mode) " however, just in case if empty(color) || color == -1 let color = 'NONE' endif endif return color endfunction function! s:get_array(fg, bg, opts) let opts=empty(a:opts) ? '' : join(a:opts, ',') return g:airline_gui_mode ==# 'gui' \ ? [ a:fg, a:bg, '', '', opts ] \ : [ '', '', a:fg, a:bg, opts ] endfunction function! airline#highlighter#reset_hlcache() let s:hl_groups = {} endfunction function! airline#highlighter#get_highlight(group, ...) if get(g:, 'airline_highlighting_cache', 0) && has_key(s:hl_groups, a:group) return s:hl_groups[a:group] else let fg = s:get_syn(a:group, 'fg') let bg = s:get_syn(a:group, 'bg') let reverse = g:airline_gui_mode ==# 'gui' \ ? synIDattr(synIDtrans(hlID(a:group)), 'reverse', 'gui') \ : synIDattr(synIDtrans(hlID(a:group)), 'reverse', 'cterm') \|| synIDattr(synIDtrans(hlID(a:group)), 'reverse', 'term') let bold = synIDattr(synIDtrans(hlID(a:group)), 'bold') let opts = a:000 if bold let opts = ['bold'] endif let res = reverse ? s:get_array(bg, fg, opts) : s:get_array(fg, bg, opts) endif let s:hl_groups[a:group] = res return res endfunction function! airline#highlighter#get_highlight2(fg, bg, ...) let fg = s:get_syn(a:fg[0], a:fg[1]) let bg = s:get_syn(a:bg[0], a:bg[1]) return s:get_array(fg, bg, a:000) endfunction function! s:hl_group_exists(group) if !hlexists(a:group) return 0 elseif empty(synIDattr(hlID(a:group), 'fg')) return 0 endif return 1 endfunction function! airline#highlighter#exec(group, colors) if pumvisible() return endif let colors = a:colors if s:is_win32term let colors[2] = s:gui2cui(get(colors, 0, ''), get(colors, 2, '')) let colors[3] = s:gui2cui(get(colors, 1, ''), get(colors, 3, '')) endif let old_hi = airline#highlighter#get_highlight(a:group) if len(colors) == 4 call add(colors, '') endif if g:airline_gui_mode ==# 'gui' let new_hi = [colors[0], colors[1], '', '', colors[4]] else let new_hi = ['', '', printf("%s", colors[2]), printf("%s", colors[3]), colors[4]] endif let colors = s:CheckDefined(colors) if old_hi != new_hi || !s:hl_group_exists(a:group) let cmd = printf('hi %s %s %s %s %s %s %s %s', \ a:group, s:Get(colors, 0, 'guifg='), s:Get(colors, 1, 'guibg='), \ s:Get(colors, 2, 'ctermfg='), s:Get(colors, 3, 'ctermbg='), \ s:Get(colors, 4, 'gui='), s:Get(colors, 4, 'cterm='), \ s:Get(colors, 4, 'term=')) exe cmd if has_key(s:hl_groups, a:group) let s:hl_groups[a:group] = colors endif endif endfunction function! s:CheckDefined(colors) " Checks, whether the definition of the colors is valid and is not empty or NONE " e.g. if the colors would expand to this: " hi airline_c ctermfg=NONE ctermbg=NONE " that means to clear that highlighting group, therefore, fallback to Normal " highlighting group for the cterm values " This only works, if the Normal highlighting group is actually defined, so " return early, if it has been cleared if !exists("g:airline#highlighter#normal_fg_hi") let g:airline#highlighter#normal_fg_hi = synIDattr(synIDtrans(hlID('Normal')), 'fg', 'cterm') endif if empty(g:airline#highlighter#normal_fg_hi) || g:airline#highlighter#normal_fg_hi < 0 return a:colors endif for val in a:colors if !empty(val) && val !=# 'NONE' return a:colors endif endfor " this adds the bold attribute to the term argument of the :hi command, " but at least this makes sure, the group will be defined let fg = g:airline#highlighter#normal_fg_hi let bg = synIDattr(synIDtrans(hlID('Normal')), 'bg', 'cterm') if bg < 0 " in case there is no background color defined for Normal let bg = a:colors[3] endif return a:colors[0:1] + [fg, bg] + [a:colors[4]] endfunction function! s:Get(dict, key, prefix) let res=get(a:dict, a:key, '') if res is '' return '' else return a:prefix. res endif endfunction function! s:exec_separator(dict, from, to, inverse, suffix) if pumvisible() return endif let l:from = airline#themes#get_highlight(a:from.a:suffix) let l:to = airline#themes#get_highlight(a:to.a:suffix) let group = a:from.'_to_'.a:to.a:suffix if a:inverse let colors = [ l:from[1], l:to[1], l:from[3], l:to[3] ] else let colors = [ l:to[1], l:from[1], l:to[3], l:from[3] ] endif let a:dict[group] = colors call airline#highlighter#exec(group, colors) endfunction function! airline#highlighter#load_theme() if pumvisible() return endif for winnr in filter(range(1, winnr('$')), 'v:val != winnr()') call airline#highlighter#highlight_modified_inactive(winbufnr(winnr)) endfor call airline#highlighter#highlight(['inactive']) if getbufvar( bufnr('%'), '&modified' ) call airline#highlighter#highlight(['normal', 'modified']) else call airline#highlighter#highlight(['normal']) endif endfunction function! airline#highlighter#add_separator(from, to, inverse) let s:separators[a:from.a:to] = [a:from, a:to, a:inverse] call <sid>exec_separator({}, a:from, a:to, a:inverse, '') endfunction function! airline#highlighter#add_accent(accent) let s:accents[a:accent] = 1 endfunction function! airline#highlighter#highlight_modified_inactive(bufnr) if getbufvar(a:bufnr, '&modified') let colors = exists('g:airline#themes#{g:airline_theme}#palette.inactive_modified.airline_c') \ ? g:airline#themes#{g:airline_theme}#palette.inactive_modified.airline_c : [] else let colors = exists('g:airline#themes#{g:airline_theme}#palette.inactive.airline_c') \ ? g:airline#themes#{g:airline_theme}#palette.inactive.airline_c : [] endif if !empty(colors) call airline#highlighter#exec('airline_c'.(a:bufnr).'_inactive', colors) endif endfunction function! airline#highlighter#highlight(modes, ...) let bufnr = a:0 ? a:1 : '' let p = g:airline#themes#{g:airline_theme}#palette " draw the base mode, followed by any overrides let mapped = map(a:modes, 'v:val == a:modes[0] ? v:val : a:modes[0]."_".v:val') let suffix = a:modes[0] == 'inactive' ? '_inactive' : '' for mode in mapped if mode == 'inactive' && winnr('$') == 1 " there exist no inactive windows, don't need to create all those " highlighting groups continue endif if exists('g:airline#themes#{g:airline_theme}#palette[mode]') let dict = g:airline#themes#{g:airline_theme}#palette[mode] for kvp in items(dict) let mode_colors = kvp[1] let name = kvp[0] if name is# 'airline_c' && !empty(bufnr) && suffix is# '_inactive' let name = 'airline_c'.bufnr endif call airline#highlighter#exec(name.suffix, mode_colors) for accent in keys(s:accents) if !has_key(p.accents, accent) continue endif let colors = copy(mode_colors) if p.accents[accent][0] != '' let colors[0] = p.accents[accent][0] endif if p.accents[accent][2] != '' let colors[2] = p.accents[accent][2] endif if len(colors) >= 5 let colors[4] = get(p.accents[accent], 4, '') else call add(colors, get(p.accents[accent], 4, '')) endif call airline#highlighter#exec(name.suffix.'_'.accent, colors) endfor endfor " TODO: optimize this for sep in items(s:separators) call <sid>exec_separator(dict, sep[1][0], sep[1][1], sep[1][2], suffix) endfor endif endfor endfunction
