unicode::ucd.3

视频监控网络部分的协议ddns,的模块的实现代码,请大家大胆指正.

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.\" ========================================================================
.\"
.IX Title "Unicode::UCD 3"
.TH Unicode::UCD 3 "2007-12-18" "perl v5.10.0" "Perl Programmers Reference Guide"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
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.SH "NAME"
Unicode::UCD \- Unicode character database
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 2
\&    use Unicode::UCD \*(Aqcharinfo\*(Aq;
\&    my $charinfo   = charinfo($codepoint);
\&
\&    use Unicode::UCD \*(Aqcharblock\*(Aq;
\&    my $charblock  = charblock($codepoint);
\&
\&    use Unicode::UCD \*(Aqcharscript\*(Aq;
\&    my $charscript = charscript($codepoint);
\&
\&    use Unicode::UCD \*(Aqcharblocks\*(Aq;
\&    my $charblocks = charblocks();
\&
\&    use Unicode::UCD \*(Aqcharscripts\*(Aq;
\&    my $charscripts = charscripts();
\&
\&    use Unicode::UCD qw(charscript charinrange);
\&    my $range = charscript($script);
\&    print "looks like $script\en" if charinrange($range, $codepoint);
\&
\&    use Unicode::UCD qw(general_categories bidi_types);
\&    my $categories = general_categories();
\&    my $types = bidi_types();
\&
\&    use Unicode::UCD \*(Aqcompexcl\*(Aq;
\&    my $compexcl = compexcl($codepoint);
\&
\&    use Unicode::UCD \*(Aqnamedseq\*(Aq;
\&    my $namedseq = namedseq($named_sequence_name);
\&
\&    my $unicode_version = Unicode::UCD::UnicodeVersion();
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
The Unicode::UCD module offers a simple interface to the Unicode
Character Database.
.Sh "charinfo"
.IX Subsection "charinfo"
.Vb 1
\&    use Unicode::UCD \*(Aqcharinfo\*(Aq;
\&
\&    my $charinfo = charinfo(0x41);
.Ve
.PP
\&\fIcharinfo()\fR returns a reference to a hash that has the following fields
as defined by the Unicode standard:
.PP
.Vb 1
\&    key
\&
\&    code             code point with at least four hexdigits
\&    name             name of the character IN UPPER CASE
\&    category         general category of the character
\&    combining        classes used in the Canonical Ordering Algorithm
\&    bidi             bidirectional type
\&    decomposition    character decomposition mapping
\&    decimal          if decimal digit this is the integer numeric value
\&    digit            if digit this is the numeric value
\&    numeric          if numeric is the integer or rational numeric value
\&    mirrored         if mirrored in bidirectional text
\&    unicode10        Unicode 1.0 name if existed and different
\&    comment          ISO 10646 comment field
\&    upper            uppercase equivalent mapping
\&    lower            lowercase equivalent mapping
\&    title            titlecase equivalent mapping
\&
\&    block            block the character belongs to (used in \ep{In...})
\&    script           script the character belongs to
.Ve
.PP
If no match is found, a reference to an empty hash is returned.
.PP
The \f(CW\*(C`block\*(C'\fR property is the same as returned by \fIcharinfo()\fR.  It is
not defined in the Unicode Character Database proper (Chapter 4 of the
Unicode 3.0 Standard, aka \s-1TUS3\s0) but instead in an auxiliary database
(Chapter 14 of \s-1TUS3\s0).  Similarly for the \f(CW\*(C`script\*(C'\fR property.
.PP
Note that you cannot do (de)composition and casing based solely on the
above \f(CW\*(C`decomposition\*(C'\fR and \f(CW\*(C`lower\*(C'\fR, \f(CW\*(C`upper\*(C'\fR, \f(CW\*(C`title\*(C'\fR, properties,
you will need also the \fIcompexcl()\fR, \fIcasefold()\fR, and \fIcasespec()\fR functions.
.Sh "charblock"
.IX Subsection "charblock"
.Vb 1
\&    use Unicode::UCD \*(Aqcharblock\*(Aq;
\&
\&    my $charblock = charblock(0x41);
\&    my $charblock = charblock(1234);
\&    my $charblock = charblock("0x263a");
\&    my $charblock = charblock("U+263a");
\&
\&    my $range     = charblock(\*(AqArmenian\*(Aq);
.Ve
.PP
With a \fBcode point argument\fR \fIcharblock()\fR returns the \fIblock\fR the character
belongs to, e.g.  \f(CW\*(C`Basic Latin\*(C'\fR.  Note that not all the character
positions within all blocks are defined.
.PP
See also \*(L"Blocks versus Scripts\*(R".
.PP
If supplied with an argument that can't be a code point, \fIcharblock()\fR tries
to do the opposite and interpret the argument as a character block. The
return value is a \fIrange\fR: an anonymous list of lists that contain
\&\fIstart-of-range\fR, \fIend-of-range\fR code point pairs. You can test whether
a code point is in a range using the \*(L"charinrange\*(R" function. If the
argument is not a known character block, \f(CW\*(C`undef\*(C'\fR is returned.
.Sh "charscript"
.IX Subsection "charscript"
.Vb 1
\&    use Unicode::UCD \*(Aqcharscript\*(Aq;
\&
\&    my $charscript = charscript(0x41);
\&    my $charscript = charscript(1234);
\&    my $charscript = charscript("U+263a");
\&
\&    my $range      = charscript(\*(AqThai\*(Aq);
.Ve
.PP
With a \fBcode point argument\fR \fIcharscript()\fR returns the \fIscript\fR the
character belongs to, e.g.  \f(CW\*(C`Latin\*(C'\fR, \f(CW\*(C`Greek\*(C'\fR, \f(CW\*(C`Han\*(C'\fR.
.PP