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lalrpop

v0.23.1 Growing

convenient LR(1) parser generator

Apache-2.0 OR MIT Edition 2024 MSRV 1.86
Parsing tools #parser#generator#grammar#lr#yacc

Quick Verdict

  • โœ“Actively maintained (updated 75d ago)
  • !Pre-1.0: API may have breaking changes
  • โœ“Massive adoption (3.4K crates depend on it)
  • โœ“Team maintained (2 owners)
  • โœ“Permissive license (Apache-2.0 OR MIT)

Security

Checking security advisories...
Downloads
55.5M
Dependents
3.4K
Releases
56
Size
252KB

Deep Insights

๐Ÿ“Š
Steady growth

2.8M downloads in the last 30 days (93.1K/day), up 17% from the previous period.

๐Ÿ”—
Widely adopted

3.4K crates depend on lalrpop. Strong ecosystem adoption means battle-tested code and long-term stability.

๐Ÿ‘ค
Prolific maintainer

The primary maintainer publishes 75 crates. This suggests deep Rust expertise and long-term commitment to the ecosystem.

๐Ÿ”ฌ
Pre-1.0 for over a year

Despite being 10+ years old, lalrpop hasn't reached 1.0 yet. Expect potential API changes between versions.

๐ŸŒŸ
Used by top crates

Notable dependents include basic-cookies, vrl, solang-parser, rustpython-parser, cedar-policy-core. When high-quality crates choose lalrpop, it's a strong quality signal.

Health Breakdown

Maintenance 15/25

Recency, release consistency, active ratio

Quality 10/25

Yanked ratio, deps, size, maturity, features

Community 19/20

Reverse deps, ownership, ecosystem

Popularity 8/15

Downloads, momentum, growth trend

Documentation 12/15

Docs, repo, license, metadata

Download Trend

Daily downloads ยท last 90 days
94K/day avg-23%
050K100K150K200K2/263/164/34/215/95/26

Top Dependents

Version Adoption

v0.20.2
43%
v0.22.2
25%
v0.19.12
20%
v0.20.0
8%
v0.22.1
3%

Release Timeline

10 releases1 yankedsince 2023
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2023
3
2024
3
2025
2
2026
2
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Yanked

Feature Flags

default =["lexer", "unicode", "pico-args"]

lexer*unicode*

README

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Maintainers

Dependencies
16
direct dependencies
Dependents
3.4K
crates depend on lalrpop

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