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61 lines
2.7 KiB
TeX
61 lines
2.7 KiB
TeX
\section{\module{quopri} ---
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Encode and decode MIME quoted-printable data}
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\declaremodule{standard}{quopri}
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\modulesynopsis{Encode and decode files using the MIME
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quoted-printable encoding.}
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This module performs quoted-printable transport encoding and decoding,
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as defined in \rfc{1521}: ``MIME (Multipurpose Internet Mail
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Extensions) Part One: Mechanisms for Specifying and Describing the
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Format of Internet Message Bodies''. The quoted-printable encoding is
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designed for data where there are relatively few nonprintable
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characters; the base64 encoding scheme available via the
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\refmodule{base64} module is more compact if there are many such
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characters, as when sending a graphics file.
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\indexii{quoted-printable}{encoding}
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\index{MIME!quoted-printable encoding}
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\begin{funcdesc}{decode}{input, output\optional{,header}}
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Decode the contents of the \var{input} file and write the resulting
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decoded binary data to the \var{output} file.
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\var{input} and \var{output} must either be file objects or objects that
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mimic the file object interface. \var{input} will be read until
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\code{\var{input}.readline()} returns an empty string.
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If the optional argument \var{header} is present and true, underscore
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will be decoded as space. This is used to decode
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``Q''-encoded headers as described in \rfc{1522}: ``MIME (Multipurpose Internet Mail Extensions)
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Part Two: Message Header Extensions for Non-ASCII Text''.
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\end{funcdesc}
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\begin{funcdesc}{encode}{input, output, quotetabs}
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Encode the contents of the \var{input} file and write the resulting
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quoted-printable data to the \var{output} file.
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\var{input} and \var{output} must either be file objects or objects that
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mimic the file object interface. \var{input} will be read until
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\code{\var{input}.readline()} returns an empty string.
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\var{quotetabs} is a flag which controls whether to encode embedded
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spaces and tabs; when true it encodes such embedded whitespace, and
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when false it leaves them unencoded. Note that spaces and tabs
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appearing at the end of lines are always encoded, as per \rfc{1521}.
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\end{funcdesc}
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\begin{funcdesc}{decodestring}{s\optional{,header}}
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Like \function{decode()}, except that it accepts a source string and
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returns the corresponding decoded string.
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\end{funcdesc}
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\begin{funcdesc}{encodestring}{s\optional{, quotetabs}}
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Like \function{encode()}, except that it accepts a source string and
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returns the corresponding encoded string. \var{quotetabs} is optional
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(defaulting to 0), and is passed straight through to
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\function{encode()}.
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\end{funcdesc}
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\begin{seealso}
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\seemodule{mimify}{General utilities for processing of MIME messages.}
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\seemodule{base64}{Encode and decode MIME base64 data}
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\end{seealso}
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