IronMeta – BALAFON

IronMeta 4.3.0 released

I have released a new version (4.3.0) of IronMeta. Now you can pass arbitrary patterns as arguments to rules. Variables will be captured.

The IronMeta parser generator 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 in C#.

IronMeta 4.0 Released

I have released version 4.0 of the IronMeta parser generator.

This release contains some refactoring for VS2015, and no longer tries to install the VS extension; instead, the extension is available in the VS Gallery.

Left-recursion in Parsing Expression Grammars

SÃ©rgio Medeiros and colleagues have published a paper that fleshes out their previously unpublished algorithm that I used for IronMeta‘s left-recursion handling, along with a very kind mention of IronMeta itself.

Software Releases

In the past couple of months I have released new versions of NeuroLab and IronMeta.

NeuroLab version 1.2.3 is a maintenance release containing numerous fixes:

Fixed grid generation after resize.
Fixed grid viewer not always reflecting latest grid status.
Fixed grid saving and loading losing grid network.
Fixed activation gradient rendering for links of length greater than 1.
Fixed inhibition for links of length greater than 1.
Source code fixes and refactoring.

IronMeta version 2.3 contains the following:

Made generated code more general so it is now possible to combine parsers by inheritance or encapsulation.
Added the ability to use anonymous object literals in rules. They match by comparing their public properties with the input object’s properties.
Fixed a bug where string and char literals were not correctly handled in parsers whose input was not of type char.
Fixed an off-by-one error in input enumerables.
Generated code now compiles with Mono.