ANN: Gorille (alpha)
Gorille  is a very simple Java library for testing XML content and labels against lists of allowable Unicode characters like those provided in XML 1.0  and XML 1.1 . Gorille is available under the Mozilla Public License. Gorille uses an XML format to specify lists of characters according to either XML 1.0 conventions (with its BaseChar, Ideographic, CombiningChar, Digit, and Extender productions) or XML 1.1 conventions (NameStartChar, NameChar). Both forms permit specification of the Char and S production for content characters and whitespace. I've included sample lists for both XML 1.0 and XML 1.1, as well as an ASCII-only version of XML 1.0. Gorille performs checking of Name, Names, NMTOKEN, and NMTOKENS, as well as character checking for any of the productions listed above. This checking is performed by XML parsers as documents are parsed, but Gorille may be useful for checking XML documents generated by programs or to restrict documents to subsets of the characters allowed by XML. Gorille relies completely on Java's built-in support for Unicode strings and characters, though it doesn't use any of the Unicode property information Java provides. Gorille does provide for some rather perverse modifications of the productions - you could, for instance, require that all content be in control characters while all names be ideographic - but my hope is that developers will use it in reasonable ways which don't create arbitrary explosions as programs reject bad information. I'll be using Gorille to provide name- and content-checking for MOE , but hope to also create a SAXFilter which uses it and perhaps a Java FilterReader for preprocessing content before it reaches a parser. Gorille is currently in alpha. I believe the basic functionality is complete, but there's still potential for improvement, expansion, and as always, better documentation. (Including RDDL documents for the character list and test files!)  http://simonstl.com/projects/gorille  http://www.w3.org/TR/REC-xml  http://www.w3.org/TR/xml11/  http://moe.sourceforge.net Simon St.Laurent Associate Editor, O'Reilly & Associates http://simonstl.com
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