A robust Rust parser for Linear Programming (LP) files, built on the PEST parsing framework. This crate provides comprehensive support for parsing and analyzing LP files according to major industry specifications.
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Problem Definition
- Problem name and sense specification
- Single and multi-objective optimization support
- Comprehensive constraint handling
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Variable Support
- Integer variables
- General variables
- Bounded variables (lower, upper, or both)
- Free variables
- Semi-continuous variables
- Special Ordered Sets (SOS)
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LP File Comparison (
difffeature)- Compare two LP files to identify:
- Added elements
- Removed elements
- Modified components
- Useful for model version control and validation
- Compare two LP files to identify:
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Serialization (
serdefeature)- Full serialization support for all model structures
- Compatible with various data formats
- Enables integration with other tools and systems
Add to your Cargo.toml:
[dependencies]
lp_parser_rs = "x.y.z"Clone and run with a sample file:
git clone https://github.com/dandxy89/lp_parser_rs.git
# Dissemble a single LP file
cargo run --release -- {{ /path/to/your/file.lp }}
# Compare two LP files (enabling the 'diff' feature)
cargo run --release --features diff -- {{ /path/to/your/file.lp }} {{ /path/to/your/other/file.lp }}[dependencies]
lp_parser_rs = { version = "x.y.z", features = ["serde", "diff"] }The project uses snapshot testing via insta for reliable test management:
# Run all tests with all features enabled
cargo insta test --all-features
# Review snapshot changes
cargo insta reviewThe test suite includes data from various open-source projects:
Special thanks to our contributors:
Contributions are welcome! Please feel free to submit a Pull Request.