YuNetSurf is a HTML5 parser and tree builder with CSS3 tokeniser, parser, and selection engine for Delphi (Embarcadero / CodeGear / Borland).

HTML Parser and Tree Builder

Parse HTML, good and bad.
HTML5 tokeniser with SAX-style events.
Flexible tree builder API for custom DOM implementations.
Readily provided HTML5 parser classes convert HTML documents into DOM trees:
Simple DOM tree: Fast and efficient.
LibXml2 tree: Fully compatible with LibXml2 functions, including XPATH and LibXslt transformation.
XDOM tree: Feasability study limited by XDOM restrictions.
Fast, efficient, and low memory usage.

CSS Parser and Selection Engine

Parse CSS, good and bad.
Apply CSS rules to DOM nodes:
CSS2 and CSS3 selectors.
Handle most CSS2 as well as some CSS3 properties.
Selector engines readily provided for
Simple DOM tree.
LibXml2 tree.
Flexible selection API to apply CSS to custom DOM implementations.
Fast, efficient, and low memory usage.

Usage Scenarios

Extract information from HTML documents:
Locate HTML elements based on their tag names, attribute names or CSS properties.
Extract values of attributes from elements.
Find the n-th sibling or child element parsed data.
Cleanup, change, or extend HTML documents:
Add, change, or remove attributes of elements.
Manipulate the inner content of elements.
Wrap element content inside new elements.
Use CSS to detect hidden, highlighted, or invisible HTML fragments.
Apply custom CSS as HTML element filter or locator.
Download HTML documents with linked CSS URL resources.





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