# The Mail class represents an internet mail message (as per RFC822, RFC2822)

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# with headers and a body.

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class Mail

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# Create a new Mail where +f+ is either a stream which responds to gets(),

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# or a path to a file. If +f+ is a path it will be opened.

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#

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# The whole message is read so it can be made available through the #header,

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# #[] and #body methods.

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#

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# The "From " line is ignored if the mail is in mbox format.

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def initialize(f)

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unless defined? f.gets

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f = open(f, "r")

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opened = true

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end

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@header = {}

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@body = []

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begin

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while line = f.gets()

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line.chop!

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next if /^From /=~line # skip From-line

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break if /^$/=~line # end of header

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if /^(\S+?):\s*(.*)/=~line

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(attr = $1).capitalize!

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@header[attr] = $2

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elsif attr

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line.sub!(/^\s*/, '')

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@header[attr] += "\n" + line

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end

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end

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return unless line

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while line = f.gets()

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break if /^From /=~line

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@body.push(line)

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end

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ensure

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f.close if opened

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end

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end

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# Return the headers as a Hash.

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def header

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return @header

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end

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# Return the message body as an Array of lines

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def body

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return @body

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end

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# Return the header corresponding to +field+.

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#

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# Matching is case-insensitive.

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def [](field)

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@header[field.capitalize]

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end

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end

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