progressive_parser Class Reference

Class implementing one SAX progressive push parser. More...

Public Member Functions
	__construct ($case_folding=false)
	process ()
	set_contents ($contents)
	set_file ($file)
	set_processor ($processor)
	set_progress (\core\progress\base $progress)
	Sets the progress tracker for the parser.

Static Public Member Functions
static	dirname ($path)
	Provides one cross-platform dirname function for handling parser paths, see MDL-24381

Protected Member Functions
	char_data ($parser, $data)
	end_tag ($parser, $tag)
	inform_end ($path)
	Inform to the processor that we have finished parsing one path.
	inform_start ($path)
	Inform to the processor that we have started parsing one path.
	parse ($data, $eof)
	postprocess_cdata ($data)
	publish ($data)
	start_tag ($parser, $tag, $attributes)

Protected Attributes
	$accum
	$attrs
	$contents
	$currtag
	$file
	$level
	$path
	$prevlevel
progressive_parser_processor	$processor
	to be used to publish processed information
core progress base	$progress
	Progress tracker called for each action.
	$topush
	$xml_parser

Detailed Description

Class implementing one SAX progressive push parser.

SAX parser able to process XML content from files/variables. It supports attributes and case folding and works only with UTF-8 content. It's one progressive push parser because, intead of loading big crunchs of information in memory, it "publishes" (pushes) small information in a "propietary array format" througt the corresponding @progressive_parser_processor, that will be the responsibe for returning information into handy formats to higher levels.

Note that, while this progressive parser is able to process any XML file, it is 100% progressive so it publishes the information in the original order it's parsed (that's the expected behaviour) so information belonging to the same path can be returned in different chunks if there are inner levels/paths in the middle. Be warned!

The "propietary array format" that the parser publishes to the @progressive_parser_processor is this: array ( 'path' => path where the tags belong to, 'level'=> level (1-based) of the tags 'tags => array ( 'name' => name of the tag, 'attrs'=> array( name of the attr => value of the attr), 'cdata => cdata of the tag ) )

TODO: Finish phpdocs

Member Function Documentation

set_progress()

progressive_parser::set_progress

(

\core\progress\base

$progress

)

Sets the progress tracker for the parser.

If set, the tracker will be called to report indeterminate progress for each chunk of XML.

The caller should have already called start_progress on the progress tracker.

Parameters

core\progress\base

$progress

Progress tracker

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The documentation for this class was generated from the following file:

• backup/util/xml/parser/progressive_parser.class.php