XML::PatAct::Amsterdam(3pm)
NAME
XML::PatAct::Amsterdam - An action module for simplistic style-sheets
SYNOPSIS
use XML::PatAct::Amsterdam;
my $patterns = [ PATTERN => { Before => 'before',
After => 'after' },
... ];
my $matcher = XML::PatAct::Amsterdam->new( I<OPTIONS> );
DESCRIPTION
XML::PatAct::Amsterdam is a PerlSAX handler for applying pattern-action
lists to XML parses or trees. XML::PatAct::Amsterdam applies a very
simple style sheet to an instance and outputs the result. Amsterdam
gets it's name from the Amsterdam SGML Parser (ASP) which inspired this
module.
CAUTION: Amsterdam is a very simple style module, you will run into
it's limitations quickly with even moderately complex XML instances, be
aware of and prepared to switch to more complete style modules.
New XML::PatAct::Amsterdam instances are creating by calling `new()'.
Parameters can be passed as a list of key, value pairs or a hash. A
Patterns and Matcher options are required. The following OPTIONS are
supported:
- Patterns
- The pattern-action list to apply. The list is an anonymous array
of pattern, action pairs. Each action in the list contains either or both a Before and an After string to copy to the output before
and after processing an XML element. The Before and After strings may contain attribute names enclosed in square brackets (`"["' NAME `"]"'), these are replaced with the value of the attribute with
that name. The special NAME `"_element"' will be replaced with the element's name. - Matcher
- An instance of the pattern or query matching module.
- Output
- An IO::Handle or one of it's subclasses (such as IO::File), if this
parameter is not present and the AsString option is not used, the
module will write to standard output. - AsString
- Return the generated output as a string from the `"parse()"' method of the PerlSAX event generator.
AUTHOR
Ken MacLeod, ken@bitsko.slc.ut.us
SEE ALSO
- ``Using PatAct Modules'' and ``Creating PatAct Modules'' in libxmlperl.