The goal of this project was an exercise in understanding the structure of the proprietary language Smartassembly (*.tab), as well as some getting some feel for ANTLR4.
Given the nature of the business model of this automation language:
- no formal language specification is available
- no CST or AST are provided to users
- no existing independent compiler/translators that can be used in pair with the debugger of an IDE to debug the language easily at runtime / support major refactorings / etc.
I was interested in making some first steps in an "independent" tool for static analysis of the language to support the following steps / developer tools -
- formatting
- static analysis
- refactoring
This project currently contains a functioning, if incomplete, grammar for .TAB files and can extra all of the data structure names from the logic portion of the programs (ASM_DESCR block).
For ambitious developers, I hope this might help in making further steps in developer tools for the language.
Extracting Data Structure Names
| Code | Data Structures |
|---|---|
 |
 |
pip install -r requirements.txt
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Use as a CLI - from CMD or from a SmartAssembly program to parse and extract data structure names from .TAB files.
Example Usage:
python.exe -m extractor "examples\\test1.tab" "out\\test1.tab"
- Modify grammar file: \parser_generator\SADATA.g4 - see antlr.org for more details.
- Execute \parser_generator\generate_parser.py
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Generate a new parser (per above statement).
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Move the generated files from /generated_parser to /manually_modified_parser for modification.
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Modify stubs in the /manually_modified_parser to do what you want to accomplish. I certainly can recommend Terrence Parr's Book - The Definitive ANTLR 4 Reference