rustio rustio.net
66

parol

v4.3.5 Stable

LL(k) and LALR(1) parser generator for Rust

MIT/Apache-2.0 Edition 2024
AlgorithmsParsing tools #parser#parsing#parser-generator#llk

Quick Verdict

  • βœ“Actively maintained (updated 6d ago)
  • βœ“Stable API (4.x for 4+ years)
  • βœ“Trusted by 230 crates
  • !Heavy dependency tree (39 direct deps)
  • βœ“Permissive license (MIT/Apache-2.0)

Security

Checking security advisories...
Downloads
175.7K
Dependents
230
Releases
112
Size
232KB

Deep Insights

πŸ“ˆ
Strong growth momentum

18.5K downloads in the last 30 days (618/day), up 399% from the previous period.

πŸ”—
Moderate adoption

230 crates depend on parol. Reasonable ecosystem adoption, though not yet a core dependency.

βœ…
Stable for 4+ years

The API has been stable (1.x) for over 4 years with 112 releases. This level of maturity means you can depend on it without worrying about breaking changes.

πŸ“¦
Heavy dependency tree

39 direct dependencies. Consider the impact on compile times and supply chain complexity.

🌟
Used by top crates

Notable dependents include veryl-parser, parol-ls, rumoca, raa_tt, veryl-migrator. When high-quality crates choose parol, it's a strong quality signal.

Health Breakdown

Maintenance 20/25

Recency, release consistency, active ratio

Quality 15/25

Yanked ratio, deps, size, maturity, features

Community 12/20

Reverse deps, ownership, ecosystem

Popularity 6/15

Downloads, momentum, growth trend

Documentation 13/15

Docs, repo, license, metadata

Download Trend

Daily downloads Β· last 90 days
271/day avg+309%
05001K2K12/291/162/32/213/113/28

Top Dependents

Version Adoption

v3.0.1
32%
v4.2.2
22%
v0.31.0
22%
v1.0.3
12%
v0.26.1
12%

Release Timeline

112 releases2 yankedsince 2021
J
F
M
A
M
J
J
A
S
O
N
D
2021
24
2022
36
2023
18
2024
12
2025
15
2026
7
Less
More|
Yanked

Feature Flags

default =["build"]

build*profilinganalysis-benchmark-net

README

Loading README...

Maintainers

Dependencies
39
direct dependencies
Dependents
230
crates depend on parol

Similar Crates