Jericho HTML Parser 3.2

A simple but powerful java HTML parser library allowing analysis and manipulation of parts of an HTML document
This includes some common server-side tags and the fact that the analysis and the manipulation processes are reproducing verbatim any unrecognised or invalid HTML.

Jericho HTML Parser also provides high-level HTML form manipulation functions.

Jericho HTML Parser is released under both the GNU Lesser General Public License (LGPL) and the Eclipse Public License (EPL). You are therefore free to use it in commercial applications subject to the terms detailed in either one of these licence documents.

The javadocs provide comprehensive documentation of the entire API, as well as being a very useful reference on aspects of HTML and XML in general.

Main features:

  • The presence of badly formatted HTML does not interfere with the parsing of the rest of the document, which makes the library ideal for use with "real-world" HTML that chokes other parsers
  • ASP, JSP, PSP, PHP and Mason server tags are explicitly recognised by the parser. This means that normal HTML is still parsed properly even if there are server tags inside them, which is common for example when dynamically setting element attributes
  • It is neither an event nor tree based parser, but rather uses a combination of simple text search, efficient tag recognition and a tag position cache. The text of the whole source document is first loaded into memory, and then only the relevant segments searched for the relevant characters of each search operation
  • Compared to a tree based parser such as DOM, the memory and resource requirements can be far better if only small sections of the document need to be parsed or modified. Incorrect or badly formatted HTML can easily be ignored, unlike tree based parsers which must identify every node in the document from top to bottom
  • Compared to an event based parser such as SAX, the interface is on a much higher level and more intuitive, and a tree representation of the document element hierarchy is easily created if required
  • The begin and end positions in the source document of all parsed segments are accessible, allowing modification of only selected segments of the document without having to reconstruct the entire document from a tree
  • The row and column number of each position in the source document is easily accessible
  • Provides a simple but comprehensive interface for the analysis and manipulation of HTML form controls, including the extraction and population of initial values, and conversion to read-only or data display modes. Analysis of the form controls also allows data received from the form to be stored and presented in an appropriate manner
  • Custom tag types can be easily defined and registered for recognition by the parser
  • Built-in functionality to format HTML source code that indents elements according to their depth in the document element hierarchy
  • Built-in functionality to render HTML markup with simple text formatting
  • Built-in functionality to extract all text from HTML markup, suitable for feeding into a text search engine such as Apache Lucene

last updated on:
March 6th, 2011, 5:45 GMT
file size:
2.1 MB
license type:
developed by:
Martin Jericho
operating system(s):
Windows All
C: \ Programming \ Components & Libraries
Jericho HTML Parser
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What's New in This Release:
  • Bug Fixes:
  • IllegalCharsetNameException thrown when illegal encoding specified in the document.
  • Potential multithreading bug in Source.getNewLine()
  • NullPointerException when run with stringent java.policy
read full changelog

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