Decision Workspace
cas-parser vs lexper vs rcalc
Side-by-side comparison of Rust crates
44
cas-parser
experimentalv0.2.0
Parser for the CalcScript language
46
lexper
experimentalv0.0.3
A simple CLI calculator with a handwritten lexer and parser in Rust.
37
rcalc
growingv0.1.2
Glorified calculator with a lexer, parser, and interpreter written in Rust.
Core Metrics
| cas-parser | lexper | rcalc | |
|---|---|---|---|
| Health Score | 44 | 46 | 37 |
| Total Downloads | 2.2K | 1.2K | 7.9K |
| 30d Downloads | 121 | 5 | 47 |
| Dependents | 8 | 0 | 0 |
| Releases | 2 | 3 | 3 |
| Last Updated | 311d ago | 268d ago | 3013d ago |
| Age | 11m | 9m | 8y 3m |
Health Breakdown
cas-parser
Maintenance
7
Quality
14
Community
9
Popularity
4
Documentation
10
lexper
Maintenance
10
Quality
15
Community
6
Popularity
4
Documentation
11
rcalc
Maintenance
3
Quality
15
Community
6
Popularity
5
Documentation
8
Technical Details
| cas-parser | lexper | rcalc | |
|---|---|---|---|
| Version | 0.2.0 | 0.0.3 | 0.1.2 |
| Stable (≥1.0) | ✗ No | ✗ No | ✗ No |
| License | MIT | non-standard | MIT |
| Dependencies | 6 | 0 | 1 |
| Crate Size | 54KB | 8KB | 10KB |
| Features | 1 | 0 | 0 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2021 | 2024 | — |
| MSRV | — | — | — |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •lexper leads with a health score of 46/100, but none of the options score above 80.
- •rcalc has the most downloads (7.9K), suggesting wider adoption.
- •⚠ rcalc has not been updated in over a year.