196 lines
6.1 KiB
VimL
196 lines
6.1 KiB
VimL
" date.vim
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" @Author: Tom Link (mailto:micathom AT gmail com?subject=[vim])
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" @Website: http://www.vim.org/account/profile.php?user_id=4037
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" @License: GPL (see http://www.gnu.org/licenses/gpl.txt)
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" @Created: 2010-03-25.
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" @Last Change: 2017-09-06.
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" @Revision: 44.0.34
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if !exists('g:tlib#date#ShortDatePrefix') | let g:tlib#date#ShortDatePrefix = '20' | endif "{{{2
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if !exists('g:tlib#date#TimeZoneShift') | let g:tlib#date#TimeZoneShift = 0 | endif "{{{2
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let g:tlib#date#dayshift = 60 * 60 * 24
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" let g:tlib#date#date_rx = '\<\(\d\{4}\)-\(\d\d\)-\(\d\d\)\%(\s\+\(\(\d\d\):\(\d\d\)\)\)\?\>'
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let g:tlib#date#date_rx = '\<\(\d\{4}\)-\(\d\d\)-\(\d\d\)\>'
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let g:tlib#date#date_format = '%Y-%m-%d'
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function! tlib#date#IsDate(text) abort "{{{3
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return a:text =~# '^'. g:tlib#date#date_rx .'$' &&
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\ !empty(tlib#date#Parse(a:text, 0, 1))
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endf
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function! tlib#date#Format(...) abort "{{{3
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let secs1970 = a:0 >= 1 ? a:1 : localtime()
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return strftime(g:tlib#date#date_format, secs1970)
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endf
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" :display: tlib#date#DiffInDays(date1, ?date2=localtime(), ?allow_zero=0)
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function! tlib#date#DiffInDays(date, ...)
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let allow_zero = a:0 >= 2 ? a:2 : 0
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let s0 = tlib#date#SecondsSince1970(a:date, 0, allow_zero)
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let s1 = a:0 >= 1 ? tlib#date#SecondsSince1970(a:1, 0, allow_zero) : localtime()
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let dd = (s0 - s1) / g:tlib#date#dayshift
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" TLogVAR dd
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return dd
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endf
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" :display: tlib#date#Parse(date, ?allow_zero=0, ?silent=0) "{{{3
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function! tlib#date#Parse(date, ...) "{{{3
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let min = a:0 >= 1 && a:1 ? 0 : 1
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let silent = a:0 >= 2 ? a:2 : 0
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Tlibtype 'tlib', a:date, min, silent
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let m = matchlist(a:date, '^\(\d\{2}\|\d\{4}\)-\(\d\{1,2}\)-\(\d\{1,2}\)$')
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Tlibtype 'tlib', m
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let year = ''
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let month = ''
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let days = ''
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if !empty(m)
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let year = m[1]
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let month = m[2]
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let days = m[3]
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else
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let m = matchlist(a:date, '^\(\d\+\)/\(\d\{1,2}\)/\(\d\{1,2}\)$')
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if !empty(m)
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let year = m[1]
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let month = m[3]
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let days = m[2]
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else
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let m = matchlist(a:date, '^\(\d\{1,2}\)\.\s*\(\d\{1,2}\)\.\s*\(\d\d\{2}\|\d\{4}\)$')
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if !empty(m)
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let year = m[3]
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let month = m[2]
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let days = m[1]
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endif
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endif
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endif
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Tlibtype 'tlib', year, month, days
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if empty(m) || year == '' || month == '' || days == '' ||
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\ month < min || month > 12 || days < min || days > 31
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if !silent
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echoerr 'TLib: Invalid date: '. a:date
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endif
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return []
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endif
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if strlen(year) == 2
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let year = g:tlib#date#ShortDatePrefix . year
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Tlibtype 'tlib', year
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endif
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return [0 + year, 0 + month, 0 + days]
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endf
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" tlib#date#SecondsSince1970(date, ?daysshift=0, ?allow_zero=0)
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function! tlib#date#SecondsSince1970(date, ...) "{{{3
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let allow_zero = a:0 >= 2 ? a:2 : 0
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" TLogVAR a:date, allow_zero
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let date = tlib#date#Parse(a:date, allow_zero)
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if empty(date)
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return 0
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endif
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let [year, month, days] = date
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if a:0 >= 1 && a:1 > 0
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let days = days + a:1
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end
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let days_passed = days
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let i = 1970
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while i < year
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let days_passed = days_passed + 365
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if i % 4 == 0 || i == 2000
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let days_passed = days_passed + 1
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endif
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let i = i + 1
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endwh
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let i = 1
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while i < month
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if i == 1
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let days_passed = days_passed + 31
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elseif i == 2
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let days_passed = days_passed + 28
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if year % 4 == 0 || year == 2000
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let days_passed = days_passed + 1
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endif
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elseif i == 3
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let days_passed = days_passed + 31
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elseif i == 4
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let days_passed = days_passed + 30
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elseif i == 5
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let days_passed = days_passed + 31
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elseif i == 6
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let days_passed = days_passed + 30
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elseif i == 7
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let days_passed = days_passed + 31
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elseif i == 8
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let days_passed = days_passed + 31
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elseif i == 9
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let days_passed = days_passed + 30
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elseif i == 10
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let days_passed = days_passed + 31
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elseif i == 11
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let days_passed = days_passed + 30
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endif
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let i = i + 1
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endwh
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let seconds = (days_passed - 1) * 24 * 60 * 60
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let seconds = seconds + (strftime('%H') + g:tlib#date#TimeZoneShift) * 60 * 60
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let seconds = seconds + strftime('%M') * 60
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let seconds = seconds + strftime('%S')
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return seconds
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endf
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function! tlib#date#Shift(date, shift) abort "{{{3
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let n = str2nr(matchstr(a:shift, '\d\+'))
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let ml = matchlist(a:date, g:tlib#date#date_rx)
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" TLogVAR a:date, a:shift, n, ml
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if a:shift =~ 'd$'
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let date = tlib#date#AddDays(a:date, n)
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elseif a:shift =~ 'b$'
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let n1 = n
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let secs = tlib#date#SecondsSince1970(a:date)
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while n1 > 0
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let n1 -= 1
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let secs += g:tlib#date#dayshift
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let uday = strftime('%u', secs)
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if uday == 6
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let secs += g:tlib#date#dayshift * 2
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elseif uday == 7
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let secs += g:tlib#date#dayshift
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endif
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endwh
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let date = tlib#date#Format(secs)
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elseif a:shift =~ 'w$'
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let date = tlib#date#AddDays(a:date, n * 7)
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elseif a:shift =~ 'm$'
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let d = str2nr(ml[3])
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let ms = str2nr(ml[2]) + n
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let m = (ms - 1) % 12 + 1
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let yr = str2nr(ml[1]) + (ms - 1) / 12
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let date = printf('%04d-%02d-%02d', yr, m, d)
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" TLogVAR d, ms, m, yr, date
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elseif a:shift =~ 'y$'
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let yr = str2nr(ml[1]) + n
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let date = substitute(a:date, '^\d\{4}', yr, '')
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else
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throw 'tlib#date#Shift: Unsupported arguments: '. string(a:shift)
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endif
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" if !empty(ml[4]) && date !~ '\s'. ml[4] .'$'
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" let date .= ' '. ml[4]
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" endif
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" TLogVAR date
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return date
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endf
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function! tlib#date#AddDays(date, n) abort "{{{3
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let secs = tlib#date#SecondsSince1970(a:date) + g:tlib#date#dayshift * a:n
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" TLogVAR secs
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let date = tlib#date#Format(secs)
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return date
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endf
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