I have worked on number of projects over the years. Here are some that I am currently trying to find time to hack on.
Golang's standard library lacks many useful and important structures. This library attempts to fill the gap. I have implemented data-structure's as I have needed them.
More at hackthology.com/data-structures
fs2 (File Structures 2)
One of my hobbies is writing database indices. This project is about exploring memory mapped structures in the go programming language. It has a high performance B+Tree with duplicate key support. It support variably sized keys and values up to 2^31 - 1 bytes in length. It also includes a memory mapped list. Finally, there is a code generator for creating wrappers around go types solving the "no generics in go problem."
More at hackthology.com/fs2
My previous work on file-structures using the read/write interface. This project collects several file-structures I have written in Go together in one place. It includes: BTree, B+Tree with duplicate key support, Linear Virtual Hashing, and a Blob store.
Netgrid is a distributed map-reduce like computation platform. Written in Go it supports iterative jobs which makes it more suitable for a variety of tasks. I originally implemented it to support my research objectives in Frequent Subgraph Mining. It is not currently open source but I am exploring the possibility.
This is a simple language with a static type checker. It is a compiled or interpreted expression oriented functional language. It features: First class functions, Closures, Integers, floats, strings, booleans, and Conditional expressions. This language is evolving fast and may have undocumented features or bugs. It started out as an example I wrote for the compilers class I teach, EECS 337 Compiler Design, at Case Western Reserve University.
More at github.com/timtadh/tcel/
Slang is a programming language which I have been developing on to help me teach the principles of compilation and program analysis. It is currently in an unfinished state as it lacks many features I would like it to have the in the future. However, it does demonstrate lexing, parsing, intermediate code generation, control flow analysis, structural data flow analysis, and machine code generation.
More at github.com/timtadh/slang
A query language for Python Object Hierarchies. It is loosely inspired by XQuery/XPath and OQL. It allows schema-less queries of complex Python data structures. It is a fun little query language with an easily extensible parser for adding more syntax.
More at github.com/timtadh/pyflwor
Tree Edit Distance
I have a great implementation of exact tree edit distance using the Zhang-Shasha algorithm. People seem to email me fairly regularly about it so someone out there is finding it useful.
More at github.com/timtadh/zhang-shasha
Command Line Utilities
- swork A shell environment manager. I use this to help manage all my projects.
- optutils A python library to help me write command line utilities. I write a lot of these.
- passmash A site specific password munger.
- Lots of random utilities here and there.
More on the github
I have a lot more projects over on my github. These are just some of the highlights. Beyond the github, there are my research projects