pod::inputobjects.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 "Pod::InputObjects 3"
.TH Pod::InputObjects 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"
Pod::InputObjects \- objects representing POD input paragraphs, commands, etc.
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 1
\&    use Pod::InputObjects;
.Ve
.SH "REQUIRES"
.IX Header "REQUIRES"
perl5.004, Carp
.SH "EXPORTS"
.IX Header "EXPORTS"
Nothing.
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
This module defines some basic input objects used by \fBPod::Parser\fR when
reading and parsing \s-1POD\s0 text from an input source. The following objects
are defined:
.Sp
.RS 4
package \fBPod::Paragraph\fR
.Sp
An object corresponding to a paragraph of \s-1POD\s0 input text. It may be a
plain paragraph, a verbatim paragraph, or a command paragraph (see
perlpod).
.Sp
package \fBPod::InteriorSequence\fR
.Sp
An object corresponding to an interior sequence command from the \s-1POD\s0
input text (see perlpod).
.Sp
package \fBPod::ParseTree\fR
.Sp
An object corresponding to a tree of parsed \s-1POD\s0 text. Each \*(L"node\*(R" in
a parse-tree (or \fIptree\fR) is either a text-string or a reference to
a \fBPod::InteriorSequence\fR object. The nodes appear in the parse-tree
in the order in which they were parsed from left-to-right.
.RE
.PP
Each of these input objects are described in further detail in the
sections which follow.
.SH "\fBPod::Paragraph\fP"
.IX Header "Pod::Paragraph"
An object representing a paragraph of \s-1POD\s0 input text.
It has the following methods/attributes:
.Sh "Pod::Paragraph\->\fB\fP\f(BInew()\fP\fB\fP"
.IX Subsection "Pod::Paragraph->new()"
.Vb 10
\&        my $pod_para1 = Pod::Paragraph\->new(\-text => $text);
\&        my $pod_para2 = Pod::Paragraph\->new(\-name => $cmd,
\&                                            \-text => $text);
\&        my $pod_para3 = new Pod::Paragraph(\-text => $text);
\&        my $pod_para4 = new Pod::Paragraph(\-name => $cmd,
\&                                           \-text => $text);
\&        my $pod_para5 = Pod::Paragraph\->new(\-name => $cmd,
\&                                            \-text => $text,
\&                                            \-file => $filename,
\&                                            \-line => $line_number);
.Ve
.PP
This is a class method that constructs a \f(CW\*(C`Pod::Paragraph\*(C'\fR object and
returns a reference to the new paragraph object. It may be given one or
two keyword arguments. The \f(CW\*(C`\-text\*(C'\fR keyword indicates the corresponding
text of the \s-1POD\s0 paragraph. The \f(CW\*(C`\-name\*(C'\fR keyword indicates the name of
the corresponding \s-1POD\s0 command, such as \f(CW\*(C`head1\*(C'\fR or \f(CW\*(C`item\*(C'\fR (it should
\&\fInot\fR contain the \f(CW\*(C`=\*(C'\fR prefix); this is needed only if the \s-1POD\s0
paragraph corresponds to a command paragraph. The \f(CW\*(C`\-file\*(C'\fR and \f(CW\*(C`\-line\*(C'\fR
keywords indicate the filename and line number corresponding to the
beginning of the paragraph
.ie n .Sh "$pod_para\fP\->\fB\fP\f(BIcmd_name()\fP\fB"
.el .Sh "\f(CW$pod_para\fP\->\fB\fP\f(BIcmd_name()\fP\fB\fP"
.IX Subsection "$pod_para->cmd_name()"
.Vb 1
\&        my $para_cmd = $pod_para\->cmd_name();
.Ve
.PP
If this paragraph is a command paragraph, then this method will return 
the name of the command (\fIwithout\fR any leading \f(CW\*(C`=\*(C'\fR prefix).
.ie n .Sh "$pod_para\fP\->\fB\fP\f(BItext()\fP\fB"
.el .Sh "\f(CW$pod_para\fP\->\fB\fP\f(BItext()\fP\fB\fP"
.IX Subsection "$pod_para->text()"
.Vb 1
\&        my $para_text = $pod_para\->text();
.Ve
.PP
This method will return the corresponding text of the paragraph.
.ie n .Sh "$pod_para\fP\->\fB\fP\f(BIraw_text()\fP\fB"
.el .Sh "\f(CW$pod_para\fP\->\fB\fP\f(BIraw_text()\fP\fB\fP"
.IX Subsection "$pod_para->raw_text()"
.Vb 1
\&        my $raw_pod_para = $pod_para\->raw_text();
.Ve
.PP
This method will return the \fIraw\fR text of the \s-1POD\s0 paragraph, exactly
as it appeared in the input.
.ie n .Sh "$pod_para\fP\->\fB\fP\f(BIcmd_prefix()\fP\fB"
.el .Sh "\f(CW$pod_para\fP\->\fB\fP\f(BIcmd_prefix()\fP\fB\fP"
.IX Subsection "$pod_para->cmd_prefix()"
.Vb 1
\&        my $prefix = $pod_para\->cmd_prefix();
.Ve
.PP
If this paragraph is a command paragraph, then this method will return 
the prefix used to denote the command (which should be the string \*(L"=\*(R"
or \*(L"==\*(R").
.ie n .Sh "$pod_para\fP\->\fB\fP\f(BIcmd_separator()\fP\fB"