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" Flag a message as important
function! mail#FlagImportant() abort
call cursor(1, 1)
call search('^$')
-
call append(line('.'), 'X-Priority: 1')
call append(line('.'), 'Importance: High')
endfunction
" Flag a message as unimportant
function! mail#FlagUnimportant() abort
call cursor(1, 1)
call search('^$')
-
call append(line('.'), 'X-Priority: 5')
call append(line('.'), 'Importance: Low')
endfunction
" Move through quoted paragraphs like normal-mode `{` and `}`
function! mail#NewBlank(count, up, visual) abort
" Reselect visual selection
if a:visual
normal! gv
endif
" Flag for whether we've started a block
let l:block = 0
" Flag for the number of blocks passed
let l:blocks = 0
" Iterate through buffer lines
let l:num = line('.')
while a:up ? l:num > 1 : l:num < line('$')
" If the line is blank
if getline(l:num) =~# '^[ >]*$'
" If we'd moved through a non-blank block already, reset that flag and
" bump up the block count
if l:block
let l:block = 0
let l:blocks += 1
endif
" If we've hit the number of blocks, end the loop
if l:blocks == a:count
break
endif
" If the line is not blank, flag that we're going through a block
else
let l:block = 1
endif
" Move the line number or up or down depending on direction
let l:num += a:up ? -1 : 1
endwhile
" Move to line if nonzero and not equal to the current line
if l:num != line('.')
execute 'normal '.l:num.'G'
endif
endfunction
" Quick map to strip multiple blank lines in the entire buffer; this comes up
" a lot when replying to stripped HTML mail. This should really be a command,
" but I'll do that Later(TM).
function! mail#ContractMultipleBlankLines() abort
let l:deletions = []
let l:blank = 0
for l:num in range(1, line('$'))
if getline(l:num) !~# '^[> ]*$'
let l:blank = 0
elseif l:blank
let l:deletions += [l:num - 1]
else
let l:blank = 1
endif
endfor
for l:num in reverse(l:deletions)
execute l:num . 'delete'
endfor
endfunction
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