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" date.vim
" @Author: Tom Link (mailto:micathom AT gmail com?subject=[vim])
" @Website: http://www.vim.org/account/profile.php?user_id=4037
" @License: GPL (see http://www.gnu.org/licenses/gpl.txt)
" @Created: 2010-03-25.
" @Last Change: 2016-06-06.
" @Revision: 41.0.34
if !exists('g:tlib#date#ShortDatePrefix') | let g:tlib#date#ShortDatePrefix = '20' | endif "{{{2
if !exists('g:tlib#date#TimeZoneShift') | let g:tlib#date#TimeZoneShift = 0 | endif "{{{2
let g:tlib#date#dayshift = 60 * 60 * 24
" let g:tlib#date#date_rx = '\<\(\d\{4}\)-\(\d\d\)-\(\d\d\)\%(\s\+\(\(\d\d\):\(\d\d\)\)\)\?\>'
let g:tlib#date#date_rx = '\<\(\d\{4}\)-\(\d\d\)-\(\d\d\)\>'
let g:tlib#date#date_format = '%Y-%m-%d'
function! tlib#date#IsDate(text) abort "{{{3
return a:text =~# '^'. g:tlib#date#date_rx .'$' &&
\ !empty(tlib#date#Parse(a:text, 0, 1))
endf
function! tlib#date#Format(...) abort "{{{3
let secs1970 = a:0 >= 1 ? a:1 : localtime()
return strftime(g:tlib#date#date_format, secs1970)
endf
" :display: tlib#date#DiffInDays(date1, ?date2=localtime(), ?allow_zero=0)
function! tlib#date#DiffInDays(date, ...)
let allow_zero = a:0 >= 2 ? a:2 : 0
let s0 = tlib#date#SecondsSince1970(a:date, 0, allow_zero)
let s1 = a:0 >= 1 ? tlib#date#SecondsSince1970(a:1, 0, allow_zero) : localtime()
let dd = (s0 - s1) / g:tlib#date#dayshift
" TLogVAR dd
return dd
endf
" :display: tlib#date#Parse(date, ?allow_zero=0, ?silent=0) "{{{3
function! tlib#date#Parse(date, ...) "{{{3
let min = a:0 >= 1 && a:1 ? 0 : 1
let silent = a:0 >= 2 ? a:2 : 0
" TLogVAR a:date, min
let m = matchlist(a:date, '^\(\d\{2}\|\d\{4}\)-\(\d\{1,2}\)-\(\d\{1,2}\)$')
if !empty(m)
let year = m[1]
let month = m[2]
let days = m[3]
else
let m = matchlist(a:date, '^\(\d\+\)/\(\d\{1,2}\)/\(\d\{1,2}\)$')
if !empty(m)
let year = m[1]
let month = m[3]
let days = m[2]
else
let m = matchlist(a:date, '^\(\d\{1,2}\)\.\s*\(\d\{1,2}\)\.\s*\(\d\d\{2}\|\d\{4}\)$')
if !empty(m)
let year = m[3]
let month = m[2]
let days = m[1]
endif
endif
endif
if empty(m) || year == '' || month == '' || days == '' ||
\ month < min || month > 12 || days < min || days > 31
if !silent
echoerr 'TLib: Invalid date: '. a:date
endif
return []
endif
if strlen(year) == 2
let year = g:tlib#date#ShortDatePrefix . year
endif
return [0 + year, 0 + month, 0 + days]
endf
" tlib#date#SecondsSince1970(date, ?daysshift=0, ?allow_zero=0)
function! tlib#date#SecondsSince1970(date, ...) "{{{3
let allow_zero = a:0 >= 2 ? a:2 : 0
" TLogVAR a:date, allow_zero
let date = tlib#date#Parse(a:date, allow_zero)
if empty(date)
return 0
endif
let [year, month, days] = date
if a:0 >= 1 && a:1 > 0
let days = days + a:1
end
let days_passed = days
let i = 1970
while i < year
let days_passed = days_passed + 365
if i % 4 == 0 || i == 2000
let days_passed = days_passed + 1
endif
let i = i + 1
endwh
let i = 1
while i < month
if i == 1
let days_passed = days_passed + 31
elseif i == 2
let days_passed = days_passed + 28
if year % 4 == 0 || year == 2000
let days_passed = days_passed + 1
endif
elseif i == 3
let days_passed = days_passed + 31
elseif i == 4
let days_passed = days_passed + 30
elseif i == 5
let days_passed = days_passed + 31
elseif i == 6
let days_passed = days_passed + 30
elseif i == 7
let days_passed = days_passed + 31
elseif i == 8
let days_passed = days_passed + 31
elseif i == 9
let days_passed = days_passed + 30
elseif i == 10
let days_passed = days_passed + 31
elseif i == 11
let days_passed = days_passed + 30
endif
let i = i + 1
endwh
let seconds = (days_passed - 1) * 24 * 60 * 60
let seconds = seconds + (strftime('%H') + g:tlib#date#TimeZoneShift) * 60 * 60
let seconds = seconds + strftime('%M') * 60
let seconds = seconds + strftime('%S')
return seconds
endf
function! tlib#date#Shift(date, shift) abort "{{{3
let n = str2nr(matchstr(a:shift, '\d\+'))
let ml = matchlist(a:date, g:tlib#date#date_rx)
" TLogVAR a:date, a:shift, n, ml
if a:shift =~ 'd$'
let date = tlib#date#AddDays(a:date, n)
elseif a:shift =~ 'b$'
let n1 = n
let secs = tlib#date#SecondsSince1970(a:date)
while n1 > 0
let n1 -= 1
let secs += g:tlib#date#dayshift
let uday = strftime('%u', secs)
if uday == 6
let secs += g:tlib#date#dayshift * 2
elseif uday == 7
let secs += g:tlib#date#dayshift
endif
endwh
let date = tlib#date#Format(secs)
elseif a:shift =~ 'w$'
let date = tlib#date#AddDays(a:date, n * 7)
elseif a:shift =~ 'm$'
let d = str2nr(ml[3])
let ms = str2nr(ml[2]) + n
let m = (ms - 1) % 12 + 1
let yr = str2nr(ml[1]) + (ms - 1) / 12
let date = printf('%04d-%02d-%02d', yr, m, d)
" TLogVAR d, ms, m, yr, date
elseif a:shift =~ 'y$'
let yr = str2nr(ml[1]) + n
let date = substitute(a:date, '^\d\{4}', yr, '')
else
throw 'tlib#date#Shift: Unsupported arguments: '. string(a:shift)
endif
" if !empty(ml[4]) && date !~ '\s'. ml[4] .'$'
" let date .= ' '. ml[4]
" endif
" TLogVAR date
return date
endf
function! tlib#date#AddDays(date, n) abort "{{{3
let secs = tlib#date#SecondsSince1970(a:date) + g:tlib#date#dayshift * a:n
" TLogVAR secs
let date = tlib#date#Format(secs)
return date
endf
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