g-code

A joint crate for GCode parsing and emission.

Parsing

The parser is written in Rust using the LALRPOP parser generator.

A custom lexer is used as LALRPOP currently does not handle whitespace well. This would prevent proper checksum computation.

Demo

cargo run --example parse ./tests/vandy_commodores_logo.gcode

Output: https://gist.github.com/sameer/5fe20dad6faa6329926df48b82e68581

Emission

Basic primitives for GCode emission.

Demo

See svg2gcode.

TODOs

Parse

• [ ] GCode parameters
• [ ] GCode infix notation

Emit

• [ ] Remaining commonly-used commands
• [ ] Automated line number, newline, and checksum insertion
• [ ] EOL and inline comments

References

• https://www.reprap.org/wiki/G-code
• NIST Interpreter: https://tsapps.nist.gov/publication/getpdf.cfm?pubid=823374
• https://en.wikipedia.org/wiki/G-code