--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/deprecated/buildtools/buildsystemtools/lib/XML/DOM/Parser.pod	Wed Oct 27 16:03:51 2010 +0800
@@ -0,0 +1,66 @@
+=head1 NAME
+
+XML::DOM::Parser - An XML::Parser that builds XML::DOM document structures
+
+=head1 SYNOPSIS
+
+ use XML::DOM;
+
+ my $parser = new XML::DOM::Parser;
+ my $doc = $parser->parsefile ("file.xml");
+
+=head1 DESCRIPTION
+
+XML::DOM::Parser extends L<XML::Parser>
+
+The XML::Parser module was written by Clark Cooper and
+is built on top of XML::Parser::Expat, 
+which is a lower level interface to James Clark's expat library.
+
+XML::DOM::Parser parses XML strings or files
+and builds a data structure that conforms to the API of the Document Object 
+Model as described at L<http://www.w3.org/TR/REC-DOM-Level-1>.
+See the L<XML::Parser> manpage for other additional properties of the 
+XML::DOM::Parser class. 
+Note that the 'Style' property should not be used (it is set internally.)
+
+The XML::Parser B<NoExpand> option is more or less supported, in that it will
+generate EntityReference objects whenever an entity reference is encountered
+in character data. I'm not sure how useful this is. Any comments are welcome.
+
+As described in the synopsis, when you create an XML::DOM::Parser object, 
+the parse and parsefile methods create an L<XML::DOM::Document> object
+from the specified input. This Document object can then be examined, modified and
+written back out to a file or converted to a string.
+
+When using XML::DOM with XML::Parser version 2.19 and up, setting the 
+XML::DOM::Parser option B<KeepCDATA> to 1 will store CDATASections in
+CDATASection nodes, instead of converting them to Text nodes.
+Subsequent CDATASection nodes will be merged into one. Let me know if this
+is a problem.
+
+=head1 Using LWP to parse URLs
+
+The parsefile() method now also supports URLs, e.g. I<http://www.erols.com/enno/xsa.xml>.
+It uses LWP to download the file and then calls parse() on the resulting string.
+By default it will use a L<LWP::UserAgent> that is created as follows:
+
+ use LWP::UserAgent;
+ $LWP_USER_AGENT = LWP::UserAgent->new;
+ $LWP_USER_AGENT->env_proxy;
+
+Note that env_proxy reads proxy settings from environment variables, which is what I need to
+do to get thru our firewall. If you want to use a different LWP::UserAgent, you can either set
+it globally with:
+
+ XML::DOM::Parser::set_LWP_UserAgent ($my_agent);
+
+or, you can specify it for a specific XML::DOM::Parser by passing it to the constructor:
+
+ my $parser = new XML::DOM::Parser (LWP_UserAgent => $my_agent);
+
+Currently, LWP is used when the filename (passed to parsefile) starts with one of
+the following URL schemes: http, https, ftp, wais, gopher, or file (followed by a colon.)
+If I missed one, please let me know. 
+
+The LWP modules are part of libwww-perl which is available at CPAN.