IronMeta 1.2 Released

Gordon — Mon, 01 Jun 2009 03:41:33 +0000

I have released a new version of IronMeta. It makes the syntax closer to the usual OMeta syntax.

I also fixed a bug that caused some redundant evaluation to be done. Performance is still pretty bad, though.

I will be focusing on

You can download the new version at SourceForge, or via Subversion at https://ironmeta.svn.sourceforge.net/svnroot/ironmeta/tags/1.2/.

IronMeta provides a programming language and application for generating pattern matchers on arbitrary streams of objects. It is an implementation of Alessandro Warth’s OMeta system for C# on .NET.

IronMeta, a parser generator for C#

Gordon — Sat, 16 May 2009 09:11:10 +0000

In between the new job and the new baby I have still managed to finish up the project I’ve been working on for myself.

It’s a C# implementation of Alessandro Warth’s OMeta pattern matching meta-language.

The IronMeta system builds parsers that can operate not only on streams of characters, but streams of objects of arbitrary types. The matchers can operate using the semantics of Parsing Expression Grammars or as fully backtracking recursive descent parsers.

IronMeta uses Warth, Douglass and Millstein’s algorithm for handling both direct and indirect left-recursion.

Grammar rules in IronMeta can take parameters, and in fact can match parameters against a pattern, allowing for different rule patterns depending on the number, type and value of parameters passed to them.

IronMeta also allows for higher-order rules, i.e. rules that can take other rules as parameters.

Balafon » IronMeta

IronMeta 1.2 Released

IronMeta, a parser generator for C#