Makussu/jdhao-nvim-config
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refactor: load colorschemes randomly

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In Emacs, there is `seq-random-elt` which randomly selects an element from
a sequence. We mimic it here in Neovim.

Ref: https://www.gnu.org/software/emacs/manual/html_node/elisp/Sequence-Functions.html.
This commit is contained in:
jdhao 2021-10-15 23:20:35 +08:00
parent b4f58504a7
commit 421111f474
2 changed files with 19 additions and 4 deletions
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7
autoload/utils.vim
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@ -49,6 +49,13 @@ function! utils#RandInt(Low, High) abort
return v:lua.math.random(a:Low, a:High) return v:lua.math.random(a:Low, a:High)
endfunction endfunction
" Selection a random element from a sequence/list
function! utils#RandElement(seq) abort
let l:idx = utils#RandInt(0, len(a:seq)-1)
return a:seq[l:idx]
endfunction
" Custom fold expr, adapted from https://vi.stackexchange.com/a/9094/15292 " Custom fold expr, adapted from https://vi.stackexchange.com/a/9094/15292
function! utils#VimFolds(lnum) abort function! utils#VimFolds(lnum) abort
" get content of current line and the line below " get content of current line and the line below

16
core/ui.vim
View File

@ -76,14 +76,22 @@ function! s:my_theme_dict.everforest() dict abort
colorscheme everforest colorscheme everforest
endfunction endfunction
let s:candidate_theme = ['gruvbox8', 'deus', 'solarized8', 'onedark', function! s:my_theme_dict.nightfox() dict abort
\ 'edge', 'sonokai', 'gruvbox_material', 'nord', 'doom_one', 'everforest'] packadd! nightfox
let s:idx = utils#RandInt(0, len(s:candidate_theme)-1)
let s:theme = s:candidate_theme[s:idx]
colorscheme nordfox
endfunction
let s:candidate_theme = ['gruvbox8', 'deus', 'solarized8', 'onedark',
\ 'edge', 'sonokai', 'gruvbox_material', 'nord', 'doom_one', 'everforest',
\ 'nightfox']
let s:theme = utils#RandElement(s:candidate_theme)
let s:colorscheme_func = printf('s:my_theme_dict.%s()', s:theme) let s:colorscheme_func = printf('s:my_theme_dict.%s()', s:theme)
if has_key(s:my_theme_dict, s:theme) if has_key(s:my_theme_dict, s:theme)
execute 'call ' . s:colorscheme_func execute 'call ' . s:colorscheme_func
echomsg "Currently loaded theme:" s:theme
else else
let s:msg = "Invalid colorscheme function: " . s:colorscheme_func let s:msg = "Invalid colorscheme function: " . s:colorscheme_func
call v:lua.vim.notify(s:msg, 'error', {'title': 'nvim-config', 'timeout': 2500}) call v:lua.vim.notify(s:msg, 'error', {'title': 'nvim-config', 'timeout': 2500})