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highlighter: use synIDtrans() in s:hl_group_exists (legacy vimscript)

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When checking the defined foreground color in the function that checks
whether a highlighting group exists, it should follow the syntax group
links and check the final color.
This commit is contained in:
Christian 2020-11-18 09:10:22 +01:00 committed by Christian Brabandt
parent 0238d386bb
commit 90de76359f
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1 changed files with 1 additions and 1 deletions
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autoload/airline/highlighter.vim
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@ -88,7 +88,7 @@ if !exists(":def") || (exists(":def") && get(g:, "airline_experimental", 0)==0)
function! s:hl_group_exists(group) abort " {{{2
if !hlexists(a:group)
return 0
elseif empty(synIDattr(hlID(a:group), 'fg'))
elseif empty(synIDattr(synIDtrans(hlID(a:group)), 'fg'))
return 0
endif
return 1