Tag Archives: java
More Fun With ANTLR v4 and Groovy
The more I play around with it, the more impressed I become with the combination of ANTLR v4 and Groovy. I am learning while I play around with the Grammar and syntax of the language I intend to embed within … Continue reading
ANTLR and Groovy
Mixing ANTLR with Groovy can give you the best of both worlds. Consider the following grammar snippet: additiveExpression : multiplicativeExpression | additiveExpression (‘+’|’-‘) additiveExpression; Handling this within Java is quite tedious. In this example we share a stack of type … Continue reading
A Tale of Two Grammars
A Tale of Two Grammars In days gone by, language creation was a highly sophisticated art practiced by wizards. The tools of the trade were flex, lex, yacc and bison. In the Java technology stack, powerful alternatives to these venerable … Continue reading
Introduction Eventually, during the course of one’s programming career, we encounter a task which requires a high degree of complexity and configurability. This task is cannot be easily expressed in the available languages. XML and property configuration files will fall … Continue reading
Still Plugging
It’s 1:30 AM. I have to work early in the morning, and I’m still plugging away at code. I can’t stop. I’m on a roll. My dad always said that “Every now and then, even a blind squirrel finds an … Continue reading
Plugging Along
In case you’ve been wondering. I’m plugging along with Dex 0.6. I’m spending a lot of time rewriting the documentation and have decided to use DokuWiki to keep it up to date. Rather than having to worry about security, I … Continue reading
Dex Tutorials and Demonstrations Are Available
I have a few online tutorials that show some basic functionality within Dex which are hosted on YouTube. Tutorial #1 : The Basics Tutorial #2 : Visualizations Tutorial #3 : Useful Components
Visualizing Minnesota Education By Race and Gender
The Minnesota State Demographic center created an interesting contest around visualizing the educational attainments of the state. So I thought that Dex might be useful in producing some visualizations with the data. After looking at the data, I chose … Continue reading
Sankey Diagrams
I really love Sankey diagrams for showing flow and conveying a sense of proportion. I just added this facility into Dex, more detail in a later blog entry. Some live examples can be found here: Example 1 Example 2 – … Continue reading
Dex 0.4 Released!
Dex 0.4 has been released and includes an easier installation as well as the features described in the 2 earlier blogs. You can download it here.
Dex 