Bitflow Script and Bitflow Query Language

This repository contains the ANTLR grammars for two doman specific languages:

• Bitflow Script is implemented in the bitflow-script directory and documented here. The language can define a graph of interconnected, parameterized data processing steps.
• Bitflow Query Language (bitflow-query-language) is a SQL-inspired language for transforming a data stream, which can be used as one step within a pipeline defined through the Bitflow Script.

The 4.7.1 version of the ANTLR library is located in the lib folder and used by the generate.sh script to generate and compile the parser code for the two DSLs. Currently, Java and Go are used as target languages. The generate.sh script can also be started with gui script or gui query parameters, which can be used to visualize and debug code of the respective DSL (the code is piped into the script over the standard input). Examples:

• echo 'a -> b()' | ./generate.sh gui script
• cat bitflow-script/tests/0_simple.txt | ./generate.sh gui script
• echo "select * where foo = 'bar'" | ./generate.sh gui query