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\section{\module{unicodedata} ---
Unicode Database}
\declaremodule{standard}{unicodedata}
\modulesynopsis{Access the Unicode Database.}
\moduleauthor{Marc-Andre Lemburg}{mal@lemburg.com}
\sectionauthor{Marc-Andre Lemburg}{mal@lemburg.com}
\index{Unicode}
\index{character}
\indexii{Unicode}{database}
This module provides access to the Unicode Character Database which
defines character properties for all Unicode characters. The data in
this database is based on the \file{UnicodeData.txt} file version
3.0.0 which is publically available from \url{ftp://ftp.unicode.org/}.
The module uses the same names and symbols as defined by the
UnicodeData File Format 3.0.0 (see
\url{http://www.unicode.org/Public/UNIDATA/UnicodeData.html}). It
defines the following functions:
\begin{funcdesc}{decimal}{unichr\optional{, default}}
Returns the decimal value assigned to the Unicode character
\var{unichr} as integer. If no such value is defined,
\var{default} is returned, or, if not given,
\exception{ValueError} is raised.
\end{funcdesc}
\begin{funcdesc}{digit}{unichr\optional{, default}}
Returns the digit value assigned to the Unicode character
\var{unichr} as integer. If no such value is defined,
\var{default} is returned, or, if not given,
\exception{ValueError} is raised.
\end{funcdesc}
\begin{funcdesc}{numeric}{unichr\optional{, default}}
Returns the numeric value assigned to the Unicode character
\var{unichr} as float. If no such value is defined, \var{default} is
returned, or, if not given, \exception{ValueError} is raised.
\end{funcdesc}
\begin{funcdesc}{category}{unichr}
Returns the general category assigned to the Unicode character
\var{unichr} as string.
\end{funcdesc}
\begin{funcdesc}{bidirectional}{unichr}
Returns the bidirectional category assigned to the Unicode character
\var{unichr} as string. If no such value is defined, an empty string
is returned.
\end{funcdesc}
\begin{funcdesc}{combining}{unichr}
Returns the canonical combining class assigned to the Unicode
character \var{unichr} as integer. Returns \code{0} if no combining
class is defined.
\end{funcdesc}
\begin{funcdesc}{mirrored}{unichr}
Returns the mirrored property of assigned to the Unicode character
\var{unichr} as integer. Returns \code{1} if the character has been
identified as a ``mirrored'' character in bidirectional text,
\code{0} otherwise.
\end{funcdesc}
\begin{funcdesc}{decomposition}{unichr}
Returns the character decomposition mapping assigned to the Unicode
character \var{unichr} as string. An empty string is returned in case
no such mapping is defined.
\end{funcdesc}
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