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" Tidy the whole buffer
function! html#Tidy() abort
let view = winsaveview()
%!tidy -quiet
call winrestview(view)
endfunction
let s:formats = {
\ 'human': '%a, %d %b %Y %T %Z',
\ 'machine': '%Y-%m-%dT%H:%M:%S.000Z',
\}
function! s:Timestamp(time) abort
if exists('$TZ')
let tz = $TZ
endif
let $TZ = 'UTC'
let time = localtime()
let timestamp = {}
for key in keys(s:formats)
let timestamp[key] = strftime(s:formats[key], time)
endfor
if exists('tz')
let $TZ = tz
endif
return timestamp
endfunction
let s:pattern = '\m\C'
\.'Last updated: '
\.'<time datetime="[^"]\+">'
\.'[^<]\+'
\.'</time>'
" Update a timestamp
function! html#TimestampUpdate() abort
if !&modified
return
endif
let lnum = search(s:pattern, 'nw')
if !lnum
return
endif
let timestamp = s:Timestamp(localtime())
let update = 'Last updated: '
\.'<time datetime="'.timestamp['machine'].'">'
\.timestamp['human']
\.'</time>'
let line = getline(lnum)
let line = substitute(line, s:pattern, update, '')
call setline(lnum, line)
endfunction
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