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parol

v4.5.1 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 14d ago)
  • βœ“Stable API (4.x for 4+ years)
  • βœ“Trusted by 236 crates
  • !Heavy dependency tree (39 direct deps)
  • βœ“Permissive license (MIT/Apache-2.0)

Security

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Downloads
268.0K
Dependents
236
Releases
116
Size
254KB

Deep Insights

πŸ“Š
Steady growth

48.5K downloads in the last 30 days (1.6K/day), up 4% from the previous period.

πŸ”—
Moderate adoption

236 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 116 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 19/25

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
1K/day avg+135%
01K2K3K2/263/164/34/215/95/26

Top Dependents

Version Adoption

v4.3.0
31%
v4.4.0
23%
v4.3.5
21%
v4.3.2
20%
v4.3.4
4%

Release Timeline

10 releasessince 2026
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Feature Flags

default =["build"]

build*profilinganalysis-benchmark-net

README

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Maintainers

Dependencies
39
direct dependencies
Dependents
236
crates depend on parol

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