mirror of
https://github.com/SpaceVim/SpaceVim.git
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76 lines
2.1 KiB
VimL
Vendored
76 lines
2.1 KiB
VimL
Vendored
" =============================================================================
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" Filename: autoload/calendar/day/gregorian.vim
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" Author: itchyny
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" License: MIT License
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" Last Change: 2017/05/07 22:04:31.
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" =============================================================================
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let s:save_cpo = &cpo
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set cpo&vim
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function! s:div(x, y) abort
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return a:x/a:y-((a:x<0)&&(a:x%a:y))
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endfunction
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function! calendar#day#gregorian#new(y, m, d) abort
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return s:constructor.new(a:y, a:m, a:d)
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endfunction
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function! calendar#day#gregorian#new_mjd(mjd) abort
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return s:constructor.new_mjd(a:mjd)
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endfunction
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function! calendar#day#gregorian#today() abort
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return s:constructor.new_mjd(calendar#day#today_mjd())
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endfunction
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let s:self = {}
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function! s:self.new(y, m, d) dict abort
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let y = a:y - (a:m < 3)
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let mjd = s:div(y*1461,4)+s:div(y,400)-s:div(y,100)+((a:m+12*(a:m<3)-3)*153+2)/5+a:d-678882
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return extend(self.new_mjd(mjd), { '_ymd': [a:y, a:m, a:d] })
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endfunction
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function! s:self.new_mjd(mjd) dict abort
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return s:constructor.new_mjd(a:mjd)
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endfunction
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let s:_ = {}
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let s:days = { '1': 31, '2': 28, '3': 31, '4': 30, '5': 31, '6': 30, '7': 31, '8': 31, '9': 30, '10': 31, '11': 30, '12': 31 }
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function! s:self.get_ymd() dict abort
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if has_key(self, 'ymd') | return self.ymd | endif
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let _ = self.mjd
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if has_key(s:_, _) | return s:_[_] | endif
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if has_key(s:_, _ - 1) && s:_[_ - 1][2] < s:days[s:_[_ - 1][1]]
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let p = s:_[_ - 1]
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let s:_[_] = [p[0], p[1], p[2] + 1]
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return s:_[_]
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endif
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let a = _ + 2432045
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let b = s:div(4 * a + 3, 146097)
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let c = a - s:div(146097 * b, 4)
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let d = (4 * c + 3) / 1461
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let e = c - (1461 * d) / 4
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let m = (5 * e + 2) / 153
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let day = e - (153 * m + 2) / 5 + 1
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let month = m + 3 - 12 * (m / 10)
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let year = 100 * b + d - 4800 + m / 10
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let self.ymd = [year, month, day]
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let s:_[_] = self.ymd
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return self.ymd
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endfunction
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function! s:self.is_gregorian() dict abort
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return 1
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endfunction
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function! s:self.get_calendar() dict abort
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return 'gregorian'
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endfunction
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let s:constructor = calendar#constructor#day#new(s:self)
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let &cpo = s:save_cpo
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unlet s:save_cpo
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