Name
xtree_doc — returns an entity object created from an XML document
Synopsis
xtree_doc
(
|
in document varchar , |
| in parser_mode integer , | |
| in base_uri varchar , | |
| in content_encoding varchar , | |
| in content_language varchar , | |
in
dtd_validator_config
varchar
); |
Description
This parses the argument, which is expected to be a well formed XML fragment and returns a parse tree as a special memory-resident object. While xper_doc creates some disk-resident data structure, xtree_doc() will work faster but it may require more memory. You may wish to use xtree_doc for small documents (e.g. less than 5 megabytes and xper_doc for larger documents.
Parameters
document
well formed XML or HTML document
parser_mode
0, 1 or 2; 0 - XML parser mode, 1 - HTML parser mode, 2 - 'dirty HTML' mode (with quiet recovery after any syntax error)
base_uri
in HTML parser mode change all absolute references to relative from given base_uri (http://<host>:<port>/<path>)
content_encoding
string with content encoding type of <document>; valid are 'ASCII', 'ISO', 'UTF8', 'ISO8859-1', 'LATIN-1' etc., defaults are 'UTF-8' for XML mode and 'LATIN-1' for HTML mode.
content_language
string with language tag of content of <document>; valid names are listed in IETF RFC 1766, default is 'x-any' (it means 'mix of words from various human languages')
dtd_validator_config
configuration string for DTD validator, default is empty string meaning that DTD validator should be fully disabled. See Configuration Options of the DTD Validator for details.
Return Types
XML entity with underlying parse tree of source document; the tree will be a memory-resident structure of nested heterogeneous vectors.
Examples
Example 24.537. xtree_doc
declare tree any;
tree := xtree_doc (file_to_string ('doc.html'), 1,
'http://localhost.localdomain/', 'ISO');
...
tree := xtree_doc (file_to_string ('doc.xml'));