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# The Mail class represents an internet mail message (as per RFC822, RFC2822)
# with headers and a body.
class Mail
# Create a new Mail where +f+ is either a stream which responds to gets(),
# or a path to a file. If +f+ is a path it will be opened.
#
# The whole message is read so it can be made available through the #header,
# #[] and #body methods.
#
# The "From " line is ignored if the mail is in mbox format.
def initialize(f)
unless defined? f.gets
f = open(f, "r")
opened = true
end
@header = {}
@body = []
begin
while line = f.gets()
line.chop!
next if /^From /=~line # skip From-line
break if /^$/=~line # end of header
if /^(\S+?):\s*(.*)/=~line
(attr = $1).capitalize!
@header[attr] = $2
elsif attr
line.sub!(/^\s*/, '')
@header[attr] += "\n" + line
end
end
return unless line
while line = f.gets()
break if /^From /=~line
@body.push(line)
end
ensure
f.close if opened
end
end
# Return the headers as a Hash.
def header
return @header
end
# Return the message body as an Array of lines
def body
return @body
end
# Return the header corresponding to +field+.
#
# Matching is case-insensitive.
def [](field)
@header[field.capitalize]
end
end
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