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" Add a field to a header, regardless of whether a field by the same name is
" already present
function! mail#header#field#Add(header, name, body) abort
let new = {
\ 'name': a:name,
\ 'body': a:body,
\}
call add(a:header['fields'], new)
endfunction
" Set a field in a header, replacing the first one with the same name (if
" any), and and removing any others
"
function! mail#header#field#Set(header, name, body) abort
let fields = []
let new = {
\ 'name': a:name,
\ 'body': a:body,
\}
for field in a:header['fields']
if field['name'] ==? a:name
if exists('new')
let field = new | unlet new
else
continue
endif
endif
call add(fields, field)
endfor
if exists('new')
call add(fields, new) | unlet new
endif
let a:header['fields'] = fields
endfunction
" Remove a header field
function! mail#header#field#Clear(header, name) abort
let fields = []
for field in a:header['fields']
if field['name'] !=? a:name
call add(fields, field)
endif
endfor
let a:header['fields'] = fields
endfunction
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