Add {excdesc} for zlib.error.

Use {methoddesc} where appropriate.
This commit is contained in:
Fred Drake 1998-04-03 06:49:26 +00:00
parent c3486318e0
commit 74810d5abb
2 changed files with 66 additions and 50 deletions

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@ -1,19 +1,25 @@
% XXX The module has been extended (by Jeremy) but this documentation hasn't been updated yet
% XXX The module has been extended (by Jeremy) but this documentation
% hasn't been updated yet
\section{Built-in Module \sectcode{zlib}}
\section{Built-in Module \module{zlib}}
\label{module-zlib}
\bimodindex{zlib}
For applications that require data compression, the functions in this
module allow compression and decompression, using the zlib library,
which is based on GNU zip. The zlib library has its own home page at
\url{http://www.cdrom.com/pub/infozip/zlib/}.
Version 1.0.4 is the most recent version as of December, 1997; use a
later version if one is available.
which is based on the GNU \program{gzip} program. The zlib library
has its own home page at
\url{http://www.cdrom.com/pub/infozip/zlib/}. Version 1.0.4 is the
most recent version as of December, 1997; use a later version if one
is available.
The available exception and functions in this module are:
\begin{excdesc}{error}
Exception raised on compression and decompression errors.
\end{excdesc}
The available functions in this module are:
\setindexsubitem{(in module zlib)}
\begin{funcdesc}{adler32}{string\optional{, value}}
Computes a Adler-32 checksum of \var{string}. (An Adler-32
checksum is almost as reliable as a CRC32 but can be computed much
@ -30,7 +36,7 @@ Compresses the data in \var{string}, returning a string contained
compressed data. \var{level} is an integer from \code{1} to \code{9}
controlling the level of compression; \code{1} is fastest and produces
the least compression, \code{9} is slowest and produces the most. The
default value is \code{6}. Raises the \exception{zlib.error}
default value is \code{6}. Raises the \exception{error}
exception if any error occurs.
\end{funcdesc}
@ -43,17 +49,19 @@ exception if any error occurs.
\end{funcdesc}
\begin{funcdesc}{crc32}{string\optional{, value}}
Computes a CRC (Cyclic Redundancy Check) sum of \var{string}. If
\var{value} is present, it is used as the starting value of the
checksum; otherwise, a fixed default value is used. This allows
computing a running checksum over the concatenation of several
input strings. The algorithm is not cryptographically strong, and
should not be used for authentication or digital signatures.
Computes a CRC (Cyclic Redundancy Check)%
\index{Cyclic Redundancy Check}
checksum of \var{string}. If
\var{value} is present, it is used as the starting value of the
checksum; otherwise, a fixed default value is used. This allows
computing a running checksum over the concatenation of several
input strings. The algorithm is not cryptographically strong, and
should not be used for authentication or digital signatures.
\end{funcdesc}
\begin{funcdesc}{decompress}{string}
Decompresses the data in \var{string}, returning a string containing
the uncompressed data. Raises the \exception{zlib.error} exception if any
the uncompressed data. Raises the \exception{error} exception if any
error occurs.
\end{funcdesc}
@ -66,41 +74,41 @@ alone.
Compression objects support the following methods:
\begin{funcdesc}{compress}{string}
\begin{methoddesc}[Compress]{compress}{string}
Compress \var{string}, returning a string containing compressed data
for at least part of the data in \var{string}. This data should be
concatenated to the output produced by any preceding calls to the
\method{compress()} method. Some input may be kept in internal buffers
for later processing.
\end{funcdesc}
\end{methoddesc}
\begin{funcdesc}{flush}{}
\begin{methoddesc}[Compress]{flush}{}
All pending input is processed, and an string containing the remaining
compressed output is returned. After calling \method{flush()}, the
\method{compress()} method cannot be called again; the only realistic
action is to delete the object.
\end{funcdesc}
\end{methoddesc}
Decompression objects support the following methods:
\begin{funcdesc}{decompress}{string}
\begin{methoddesc}[Decompress]{decompress}{string}
Decompress \var{string}, returning a string containing the
uncompressed data corresponding to at least part of the data in
\var{string}. This data should be concatenated to the output produced
by any preceding calls to the
\method{decompress()} method. Some of the input data may be preserved
in internal buffers for later processing.
\end{funcdesc}
\end{methoddesc}
\begin{funcdesc}{flush}{}
\begin{methoddesc}[Decompress]{flush}{}
All pending input is processed, and a string containing the remaining
uncompressed output is returned. After calling \method{flush()}, the
\method{decompress()} method cannot be called again; the only realistic
action is to delete the object.
\end{funcdesc}
\end{methoddesc}
\begin{seealso}
\seemodule{gzip}{reading and writing \file{gzip}-format files}
\seemodule{gzip}{reading and writing \program{gzip}-format files}
\end{seealso}

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@ -1,19 +1,25 @@
% XXX The module has been extended (by Jeremy) but this documentation hasn't been updated yet
% XXX The module has been extended (by Jeremy) but this documentation
% hasn't been updated yet
\section{Built-in Module \sectcode{zlib}}
\section{Built-in Module \module{zlib}}
\label{module-zlib}
\bimodindex{zlib}
For applications that require data compression, the functions in this
module allow compression and decompression, using the zlib library,
which is based on GNU zip. The zlib library has its own home page at
\url{http://www.cdrom.com/pub/infozip/zlib/}.
Version 1.0.4 is the most recent version as of December, 1997; use a
later version if one is available.
which is based on the GNU \program{gzip} program. The zlib library
has its own home page at
\url{http://www.cdrom.com/pub/infozip/zlib/}. Version 1.0.4 is the
most recent version as of December, 1997; use a later version if one
is available.
The available exception and functions in this module are:
\begin{excdesc}{error}
Exception raised on compression and decompression errors.
\end{excdesc}
The available functions in this module are:
\setindexsubitem{(in module zlib)}
\begin{funcdesc}{adler32}{string\optional{, value}}
Computes a Adler-32 checksum of \var{string}. (An Adler-32
checksum is almost as reliable as a CRC32 but can be computed much
@ -30,7 +36,7 @@ Compresses the data in \var{string}, returning a string contained
compressed data. \var{level} is an integer from \code{1} to \code{9}
controlling the level of compression; \code{1} is fastest and produces
the least compression, \code{9} is slowest and produces the most. The
default value is \code{6}. Raises the \exception{zlib.error}
default value is \code{6}. Raises the \exception{error}
exception if any error occurs.
\end{funcdesc}
@ -43,17 +49,19 @@ exception if any error occurs.
\end{funcdesc}
\begin{funcdesc}{crc32}{string\optional{, value}}
Computes a CRC (Cyclic Redundancy Check) sum of \var{string}. If
\var{value} is present, it is used as the starting value of the
checksum; otherwise, a fixed default value is used. This allows
computing a running checksum over the concatenation of several
input strings. The algorithm is not cryptographically strong, and
should not be used for authentication or digital signatures.
Computes a CRC (Cyclic Redundancy Check)%
\index{Cyclic Redundancy Check}
checksum of \var{string}. If
\var{value} is present, it is used as the starting value of the
checksum; otherwise, a fixed default value is used. This allows
computing a running checksum over the concatenation of several
input strings. The algorithm is not cryptographically strong, and
should not be used for authentication or digital signatures.
\end{funcdesc}
\begin{funcdesc}{decompress}{string}
Decompresses the data in \var{string}, returning a string containing
the uncompressed data. Raises the \exception{zlib.error} exception if any
the uncompressed data. Raises the \exception{error} exception if any
error occurs.
\end{funcdesc}
@ -66,41 +74,41 @@ alone.
Compression objects support the following methods:
\begin{funcdesc}{compress}{string}
\begin{methoddesc}[Compress]{compress}{string}
Compress \var{string}, returning a string containing compressed data
for at least part of the data in \var{string}. This data should be
concatenated to the output produced by any preceding calls to the
\method{compress()} method. Some input may be kept in internal buffers
for later processing.
\end{funcdesc}
\end{methoddesc}
\begin{funcdesc}{flush}{}
\begin{methoddesc}[Compress]{flush}{}
All pending input is processed, and an string containing the remaining
compressed output is returned. After calling \method{flush()}, the
\method{compress()} method cannot be called again; the only realistic
action is to delete the object.
\end{funcdesc}
\end{methoddesc}
Decompression objects support the following methods:
\begin{funcdesc}{decompress}{string}
\begin{methoddesc}[Decompress]{decompress}{string}
Decompress \var{string}, returning a string containing the
uncompressed data corresponding to at least part of the data in
\var{string}. This data should be concatenated to the output produced
by any preceding calls to the
\method{decompress()} method. Some of the input data may be preserved
in internal buffers for later processing.
\end{funcdesc}
\end{methoddesc}
\begin{funcdesc}{flush}{}
\begin{methoddesc}[Decompress]{flush}{}
All pending input is processed, and a string containing the remaining
uncompressed output is returned. After calling \method{flush()}, the
\method{decompress()} method cannot be called again; the only realistic
action is to delete the object.
\end{funcdesc}
\end{methoddesc}
\begin{seealso}
\seemodule{gzip}{reading and writing \file{gzip}-format files}
\seemodule{gzip}{reading and writing \program{gzip}-format files}
\end{seealso}