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89 lines
3.4 KiB
TeX
89 lines
3.4 KiB
TeX
\section{\module{mimify} ---
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MIME processing of mail messages}
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\declaremodule{standard}{mimify}
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\modulesynopsis{Mimification and unmimification of mail messages.}
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The mimify module defines two functions to convert mail messages to
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and from MIME format. The mail message can be either a simple message
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or a so-called multipart message. Each part is treated separately.
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Mimifying (a part of) a message entails encoding the message as
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quoted-printable if it contains any characters that cannot be
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represented using 7-bit \ASCII. Unmimifying (a part of) a message
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entails undoing the quoted-printable encoding. Mimify and unmimify
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are especially useful when a message has to be edited before being
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sent. Typical use would be:
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\begin{verbatim}
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unmimify message
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edit message
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mimify message
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send message
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\end{verbatim}
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The modules defines the following user-callable functions and
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user-settable variables:
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\begin{funcdesc}{mimify}{infile, outfile}
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Copy the message in \var{infile} to \var{outfile}, converting parts to
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quoted-printable and adding MIME mail headers when necessary.
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\var{infile} and \var{outfile} can be file objects (actually, any
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object that has a \method{readline()} method (for \var{infile}) or a
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\method{write()} method (for \var{outfile})) or strings naming the files.
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If \var{infile} and \var{outfile} are both strings, they may have the
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same value.
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\end{funcdesc}
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\begin{funcdesc}{unmimify}{infile, outfile\optional{, decode_base64}}
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Copy the message in \var{infile} to \var{outfile}, decoding all
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quoted-printable parts. \var{infile} and \var{outfile} can be file
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objects (actually, any object that has a \method{readline()} method (for
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\var{infile}) or a \method{write()} method (for \var{outfile})) or strings
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naming the files. If \var{infile} and \var{outfile} are both strings,
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they may have the same value.
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If the \var{decode_base64} argument is provided and tests true, any
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parts that are coded in the base64 encoding are decoded as well.
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\end{funcdesc}
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\begin{funcdesc}{mime_decode_header}{line}
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Return a decoded version of the encoded header line in \var{line}.
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\end{funcdesc}
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\begin{funcdesc}{mime_encode_header}{line}
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Return a MIME-encoded version of the header line in \var{line}.
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\end{funcdesc}
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\begin{datadesc}{MAXLEN}
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By default, a part will be encoded as quoted-printable when it
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contains any non-\ASCII{} characters (characters with the 8th bit
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set), or if there are any lines longer than \constant{MAXLEN} characters
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(default value 200).
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\end{datadesc}
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\begin{datadesc}{CHARSET}
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When not specified in the mail headers, a character set must be filled
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in. The string used is stored in \constant{CHARSET}, and the default
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value is ISO-8859-1 (also known as Latin1 (latin-one)).
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\end{datadesc}
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This module can also be used from the command line. Usage is as
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follows:
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\begin{verbatim}
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mimify.py -e [-l length] [infile [outfile]]
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mimify.py -d [-b] [infile [outfile]]
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\end{verbatim}
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to encode (mimify) and decode (unmimify) respectively. \var{infile}
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defaults to standard input, \var{outfile} defaults to standard output.
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The same file can be specified for input and output.
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If the \strong{-l} option is given when encoding, if there are any lines
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longer than the specified \var{length}, the containing part will be
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encoded.
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If the \strong{-b} option is given when decoding, any base64 parts will
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be decoded as well.
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\begin{seealso}
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\seemodule{quopri}{Encode and decode MIME quoted-printable files.}
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\end{seealso}
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