Parser tooling

nom

A byte-oriented, zero-copy, parser combinators library

v8.0.0-beta.1 8.7M no-std #parser-combinator
pest

The Elegant Parser

v2.7.15 4.0M no-std #pest-parser #peg #grammar #parser
logos

Create ridiculously fast Lexers

v0.15.0 498K no-std #lexer #tokenizer #lexical #state-machine #parser #compile-time
lalrpop

convenient LR(1) parser generator

v0.22.0 779K bin+lib #parser-generator #grammar #lr #generator #parser #yacc #programming-language
combine

Fast parser combinators on arbitrary streams with zero-copy support

v4.6.7 3.3M no-std #parser-combinator #parser #combinator #parsing #data-stream #ll #arguments-parser
peg

Parsing Expression Grammar (PEG) parser generator

v0.8.4 640K no-std #parser-generator #grammar #parser #expression #error-reporting #parse-error #recursion
chumsky

A parser library for humans with powerful error recovery

v1.0.0-alpha.7 257K no-std #parser-combinator #parser #combinator #syntax-error #syntax #token
pom

PEG parser combinators using operator overloading without macros

v3.4.0 41K #parser-combinator #operator-overloading #peg #parser
bitreader

reading individual bits from a slice of bytes. You can read "unusual" numbers of bits from the byte slice, for example 13 bits at once. The reader internally keeps track of position within the buffer.

v0.3.11 23K no-std #byte-slice #bit #bits #bitstream #byte-buffer #byte-stream #data-stream
tree-sitter-rust

Rust grammar for tree-sitter

v0.23.2 83K #tree-sitter #incremental #parser #syntax-tree #file-tree #rust
pest_meta

pest meta language parser and validator

v2.7.15 3.6M #pest-parser #pest #meta #optimization #parser
parol

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

v1.0.3 650 bin+lib #parser-generator #lalr-parser #parser #ast #parsing #nlp #expression-language
rustlr

Bottom-Up Parser Generator with Advanced Options

v0.6.3 1.2K bin+lib #parser-generator #lalr-parser #lr #parser #parsing #yacc
tree-sitter-c

C grammar for tree-sitter

v0.23.4 20K #tree-sitter #incremental #c
tree-sitter-swift

swift grammar for the tree-sitter parsing library

v0.6.0 8.5K #tree-sitter #swift #incremental #programming-language #parser
yap

Parser library. A lightweight, dependency free, parser combinator inspired set of utility methods to help with parsing strings and slices.

v0.12.0 145K no-std #parser-combinator #string-parser #tokens #slice #iterator #free #methods
rusty_parser

A Generic compile-time Parser generator and pattern matching library written in Rust

v1.1.0 #parser-generator #context-free-grammar #parser-combinator #syntax-tree #parser #parse-input #ast-parser
cfgrammar

Grammar manipulation

v0.13.8 16K #grammar #parser-generator #yacc #rules #concepts #lr #production
antlr-rust

ANTLR4 runtime for Rust

v0.3.0-beta 382K #parser-generator #run-time #parse-tree #antlr4 #antlr #parser #runtime
nom-derive

Custom derive nom parsers from struct

v0.10.1 40K #nom #parser-combinator #parser #derive #struct #attributes
minimal-lexical

Fast float parsing conversion routines

v0.2.1 8.2M no-std #parser #parsing #no-std
cfg

manipulating context-free grammars

v0.9.0 650 #context-free-grammar #grammar #language #parser
token-string

Short (up to 65,535 bytes) immutable strings to e.g. parse tokens, implemented in Rust. These are sometimes called 'German Strings', because Germans have written the paper mentioning them.

v0.8.3 360 nightly no-std #byte-string #string #immutability #tokens #byte-length #token #small
nom-tracer

Extension of nom to trace parser execution

v1.0.1 #nom #trace #parser-combinator #parser #debug #debugging
splitty

a string splitter taking quotes into account

v1.0.2 5.2K no-std #quote #string #split #character #no-std
monch

Inspired by nom, but specifically for strings

v0.5.0 18K #string #combinator #nom #deno #leave
lrlex

lexer generator

v0.13.8 9.1K bin+lib #lexer #parser-generator #grammar #flex #lex #lexing #input
rustemo

A LR/GLR parser generator

v0.7.0 170 #parser-generator #grammar #lr #generator #parser
oni-comb-parser-rs

parser combinators

v0.0.652 4.5K #parser-combinator #combinator #parser #json-parser #ll #character #oni
tree-sitter-elixir

Elixir grammar for the tree-sitter parsing library

v0.3.3 11K #tree-sitter #elixir #incremental #parser
nom-recursive

Extension of nom to handle left recursion

v0.5.1 2.5K #nom #recursion #left #parser #handle #extension
tree-sitter-scala

Scala grammar for tree-sitter

v0.23.3 6.7K #tree-sitter #scala #incremental #parser
laps

Build lexers and parsers by deriving traits

v0.1.7 360 #lexer #ast #token #traits #deriving #parser #tokenize
lelwel

Resilient LL(1) parser generator

v0.6.4 bin+lib #parser-generator #syntax-tree #ll #grammar #generator #parser #ast
pest_consume

A framework for processing the output of a pest-generated parser

v1.1.3 15K #pest-parser #parse-tree #pest-grammar #pest #grammar #parser #peg
gramatica

A compiler compiler for Rust implementing Earley's parser

v0.2.1 180 bin+lib #context-free-grammar #grammar #compiler #context-free #parser #regular-expressions #bison
pidgin

non-recursive grammars

v0.4.4 140 #parse-tree #regex #regex-parser #string-parser #grammar #expression-parser #convert-string
supply-chain-trust-example-crate-000099

A byte-oriented, zero-copy, parser combinators library

v8.0.0-alpha2 no-std
locspan

Code mapping utility types and traits

v0.8.2 22K #source-file #source-map #spans #source #error-reporting #byte-range #map
bitvec-nom2

Bit level parsing for nom with bitvec

v0.2.1 272K no-std #nom #parser-combinator #bit-level #bit #parser
descape

Adds a single extension trait for &str to unescape any backslashes

v2.0.3 280 no-std #escaping #string-parser #string #unicode #zero-copy #escape-sequence
safe-regex

Safe regular expression library

v0.3.0 24K no-std #regex #regular #expression #re #memory-safe
peginator

PEG parser generator for creating ASTs in Rust (runtime)

v0.7.0 150 #peg-parser #parser-generator #peg #ast #syntax-tree #grammar #parser
rustylr

executable for rusty_lr

v1.0.5 app #context-free-grammar #parser-generator #compiler #lr #glr #bison #parser
earlgrey

parsing context-free grammars using Earley algorithm

v0.4.1 110 #context-free-grammar #grammar #earley #ast #ebnf #parser
gallop

General LL(1) Parser

v1.0.7 #ll #grammar #parser #tutorial #non-terminal #rule-element
yggdrasil-rt

Yggdrasil Shared Structure

v0.1.3 170 #parser-generator #grammar #generator #peg #parser
pest_vm

pest grammar virtual machine

v2.7.15 15K #pest-grammar #pest-parser #virtual-machine #pest #vm #language #expression
inpt

A derive crate for dumb type-level text parsing

v0.1.4 #parser #regex-parser #text-parser #regex #aoc
structview

Viewing binary data as high-level data structures, safely

v1.1.0 2.2K no-std #binary-data #data-structures #binary-format #binary-parser #struct #zero-copy #reference-data
tree-sitter-cpp

C++ grammar for tree-sitter

v0.23.4 18K #tree-sitter #cpp #incremental #parser
lrtable

LR grammar table generation

v0.13.8 16K #parser-generator #table #grammar #lr #state #generation #analysis
lieval

A lightweight Rust crate for parsing and evaluating mathematical expressions from strings

v0.2.4 #expression-parser #expression-evaluator #math #math-parser #evaluator #expression #arithmetic-operations
tokenizer-lib

Tokenization utilities for building parsers in Rust

v1.6.0 110 #tokenization #parser #utilities #parsing #debugging
parcelona

minimalistic elegance parser combinator library

v0.4.3 160 #parser-combinator #string-parser #zero-copy #minimalist #elegant #elegance #u8
rusttyc

writing type checkers with a lattice-like type system in rust

v0.5.0 250 #type #lattice #type-checker #types #generate-table
chomp1

A fast monadic-style parser combinator designed to work on stable Rust

v0.3.4 1.1K no-std #parser-combinator #streaming-parser #parser #parsing
fn-bnf

A parsing grammar generator that lets you use arbitrary Rust items as rules

v1.1.1 190 no-std #bnf #parser #no-std
rusticata-macros

Helper macros for Rusticata

v4.1.0 1.5M #nom #parser-combinator #serialization #macro #rusticata #helper #condition
gramma

Generate a scannerless parser by declaring types

v0.2.24 no-std #context-free-grammar #parser-generator #declarative #scannerless #define #declaring #generate
alkale

LL(1) lexer library for Rust

v2.0.0 160 #lexer #tokenizer #token
lexerus

annotated lexer

v0.1.7 nightly no-std #lexer #tokenizer #tokeniser
fast-float

Fast floating-point number parser

v0.2.0 155K no-std #decimal-number #float #parser #parse #parsing #string-parser #no-std
pest_typed_generator

Pest-typed's code generator

v0.17.1 350 #pest-parser #pest #generator #statically-typed #parser-generator #syntax-tree #version
kiki

A minimalist parser generator for Rust

v7.0.0 #parser-generator #lalr-parser #grammar #lalr #generator #parser
glue

parser combinator framework for parsing text based formats, it is easy to use and relatively fast too

v0.8.7 #parser-combinator #text-parser #parser #text-format #input
syntax-parser-generator

Independent library for generating lexical-analyzers and LALR parsers

v0.1.1 #parser-generator #lalr-parser #independent #generates #syntax #input #translator
syntaxe

declarative parser combinators

v0.1.0 140 #parser #parser-combinator #symbol #prelude #string #declarative #optional
logos-codegen

Create ridiculously fast Lexers

v0.15.0 209K no-std #lexer #tokenizer #lexical #state-machine #lookup-tables #compile-time #regex
pomelo

Lemon parser generator as a Rust procedural macro

v0.1.5 15K no-std #parser-generator #proc-macro #lemon #yacc #bison
tuckey

lexer/parser generation framework

v0.1.7 #lexer #generation #generator #framework #pattern-matching #processing #rules
pest_railroad_gen

Railroad (aka syntax) SVG diagram generator for Pest parsers. It supports most (but not all) Pest grammar rules.

v0.1.0 app #pest #pest-parser #diagram #syntax #pest-grammar #parser #peg
pa-rs

Parsing library using concepts of Parser combinators

v0.1.5 #parser-combinator #parser #combinator #concepts
bnf_rules

LR(1) parser generator

v0.1.4 250 #parser-generator #bnf #lr #grammar #rules #tokenizer #literals
ndef-rs

NDEF (NFC Data Exchange Format) parser and generator in Rust

v0.2.2 #data-exchange #parser-generator #ndef #nfc #messages #mime #record
peg-runtime

Runtime support for rust-peg grammars. To use rust-peg, see the peg crate.

v0.8.3 637K no-std #parser-generator #run-time #grammar #parse-error #expression-parser #error-reporting #parse-input
parsa

a functional combinator parsing library

v1.1.1 #parser-combinator #string-parser #parser #string
lib-lexin

lexer library

v0.3.6 #lexer #lexical #generator #gen #parser-generator #parser #string-parser
lexers

Tools for tokenizing and scanning

v0.1.4 1.8K #lexer #tokenizer #scanner #ebnf #tokenize
rust-bison-skeleton

Bison skeleton for Rust

v0.41.0 #grammar #bison #lr #yacc #parser
parse_int

Parse &str with common prefixes to integer values

v0.6.0 32K #hex #string-parser #binary-parser #binary #decimal #hex-string #octal
pratt

parser for Rust

v0.4.0 9.4K #expression-parser #expression-tree #parser #token-tree #pest-parser #recursion #parse-tree
tree-sitter-css

CSS grammar for tree-sitter

v0.23.1 12K #css-parser #tree-sitter #css #incremental #parser
pom-trace

PEG parser combinators using operator overloading without macros

v4.0.3 #parser-combinator #operator-overloading #peg #parser
rflex

Fast lexer code generator for Rust

v0.8.1 bin+lib #lexer #lexical-analysis #lex #generator #analyzer #lexer-generator #package
tree-sitter-r

R grammar for the tree-sitter parsing library

v1.1.0 330 #tree-sitter #incremental #parser #r
thisenum

Assign constant literals to enum arms

v0.2.1 #enums #literals #const #parser #macro
decodetree

parser and generator

v0.4.7 #parser-generator #disassembler #instructions #generate #decode #found
strloin

copy on write slices of a string

v0.2.0 #slice #string #cow #copy-on-write #str #text-parser
cinputs

that simplifies the constraining of inputs

v0.2.5 bin+lib #input #user-input #parser #cinput
nom-language

Language parsing focused combinators for the nom parser library

v0.1.0-alpha.1 230 #parser-combinator #nom #language #pattern #grammar #focused
zero

zero-allocation parsing of binary data

v0.1.3 48K #binary-data #binary-parser #zero-allocation #memory #memory-safe
nimbleparse

Yacc grammar debugging tool

v0.13.8 app #parser-generator #parse-tree #lexer #grammar #error #specification #debugging-tool
winnow

A byte-oriented, zero-copy, parser combinators library

v0.6.20 9.7M no-std #parser-combinator #parser #parsing #streaming-parser #bit
simple-tokenizer

A tiny no_std tokenizer with line & column tracking

v0.4.2 no-std #line-column #tokenizer #parser #tracking #backtracking #tiny #input
rusty_lr_parser

macro line parser for rusty_lr

v3.25.1 #compiler #lr #glr #context-free-grammar #syntax-tree #bison #parser
is_number

Check if a string can be parsed as a number

v0.1.1 220 #numbers #string #check #parser #validation #parsing
dynparser

Dynamic parser. You can define rules at run time. It's possible to use peg format

v0.4.2 bin+lib #peg #parser #dynamic #expression-parser #ast-parser #parse-input #text-parser
lexer-rs

Lexical anaylzer framework for context-free text parsing into tokens

v0.0.4 #lexical #text-parser #token-parser #token-stream #parser #parsing #text
transduce

Zero-copy isomorphic parsing: your code should look like what it parses

v0.4.4 no-std #parser #no-alloc #parse-input #no-std
shrimple-parser

Zero-dependency next-gen parsing combinator library with flexible error reporting

v0.0.4 no-std #parser-combinator #error-reporting #flexible #zero-dependency #next-gen #location #fatal
mpl

Minimal parser combinator of Minimal Parsing Language (MPL) like Top-Down Parsing Language (TDPL)

v0.2.0 #parser-combinator #syntax-tree #ast #parser-generator #parser #combinator #grammar
pag-lexer

Parser-lexer fusion generator (derivative lexer)

v0.1.0-alpha.1 nightly #lexer #regex #parser-generator #grammar #cfg #expression-parser
lemon-mint

Famous Lemon Parser Generator implemented in rust as library with API

v0.1.4 #parser-generator #lalr-parser #generator #lalr #lemon #parser
lip

powerful parser combinators for creating reusable and flexible parsers

v8.1.2 500 #parser-combinator #combinator #functional #parser #error-message #message-parser
split-paragraphs

Iterator over paragraphs of a string

v0.2.0 140 no-std #iterator #split #paragraphs #no-alloc #paragraph #no-std
nameless-peg-parser

PEG, still unstable

v0.1.2 #peg #grammar #parser
microparsec

parser combinator crate for Rust

v0.1.0 120 #string-parser #parser-rc #sequence-parser #spaces-parser #parser-combinator #context-parser-t #string-parser-t
rushell_deps_pom

PEG parser combinators using operator overloading without macros

v3.2.0-jeff.2 #parser-combinator #operator-overloading #peg #parser
peekread

Allows peeking ahead in Read streams

v0.1.1 600 #read-stream #stream #read #peek
parsit

very simple lib, the parsing combinators, recursive descendent that uses logos as lexer

v0.2.0 100 #parser-combinator #logo #lexer #lexical-analysis #language #parser
take_sni

just parse sni from buf

v0.1.5 #tls-client #sni #parser #buffer #hello #buf #parser-combinator
byte-parser

Parse a str or a slice with a function style

v0.2.3 1.6K #parser #string-parser #byte-slice #numbers #style #parse-iterator #functional
pkl-parser

Pkl Parser!

v0.8.1 bin+lib #pkl #parser #rust
generator-combinator

Composes combinators to generate patterns of increasing complexity

v0.4.0 #combinator #parser-combinator #generator #text-generation #pattern #generate #street
ruly2

parser generator from context free grammar

v0.1.8 #context-free-grammar #parser-generator #cfg #parser
manger

A performant, low-level, lightweight and intuitive combinatoric parser library

v0.1.1 #parser #consume #combinatorics #combinatoric #behavior
pest_derive

pest's derive macro

v2.7.15 3.6M macro no-std #pest-parser #pest-grammar #pest #macro-derive #grammar #peg #parser
langlang_syntax

langlang is a parser generator based on Parsing Expression Grammars (library)

v0.1.2 #parser-generator #grammar #expression #error-reporting #recursion #language #input
paresse

Parser generators for lazy people

v0.1.0 #parser-generator #lazy-evaluation #people
bitstream_reader

Reading bit sequences from a byte slice

v0.7.1 #binary-data #byte-slice #bit-length #read #byte-stream #read-stream #reading
lexer

plugin based lexical reader

v0.1.18 410 #plugin #reader #lexical #text-parser #parser #read-input #text-input
autumn

A recursive descent parser combinator library

v0.4.3 #parser-combinator #combinator #recursion #descent #token #parser #recursive
nom-greedyerror

Custom error type to take a deepest error

v0.5.0 4.2K #nom #error #parse-error #parser #parser-combinator #position #accuracy
chainchomp

Tinyest Opinionated parser combinator library for Rust

v0.2.1 #parser-combinator #opinionated #tinyest
lang_pt

A parser tool to generate recursive descent top down parser

v0.1.2 170 #tokenizer #parser #recursive-descent #top-down #tokenize #regex
syntacks

An opinionated parser library for Rust

v0.1.0-alpha0.2 #combinator #parser-combinator #diagnostics #parser
enso-automata

A finite-automata-based lexing engine

v0.2.0 nightly #lexer #finite #automata #finite-automata #finite-state #lexing #engine
parol_runtime

Runtime library for parsers generated by the 'parol' parser generator

v1.0.2 500 #parser-generator #run-time #lalr-parser #grammar #parser #parol #generated
oak

A typed parser generator syntax extension for Parsing Expression Grammar (PEG)

v0.8.0 230 nightly macro #parser-generator #grammar #peg #proc-macro #parser
indent_tokenizer

Generate tokens based on indentation

v0.4.0 #indentation #token #tokenizer #tokenize #text-processing
number_range

parse list of numbers from/to human readable string

v0.3.2 4.6K #human-readable #numbers #iterator #string-parser #convert-string #parser #range-iterator
textmate-scope-selector-peg

Textmate scope selector implementation as a PEG (parser grammar) in Rust

v2.0.0 350 #selector #scope #grammar #textmate
strp

string parsing utility crate, supporting no_std contexts

v1.1.2 no-std #string-parser #parser #string #binary-parser #primitive #multiple-values #context
lexr

Flexible, powerful and simple lexing in Rust

v0.1.0 #lexing #lexer #lex #lex-macro
lua_ir

lua runtime and IR generation

v0.7.1 #lua #glr #run-time #ir #generation #interpreter #lalr
sprout

growing simple, but beautiful AST trees 🌳

v1.0.0 #ast #syntax-tree #grammar #tokens #language #ast-parser #parse
fast_input

Fast and easy input from standard in, made for competetive programming

v0.2.0 #input #competitive-programming #competitive #stdin #read-input #kattis
combine_wasi

Fast parser combinators on arbitrary streams with zero-copy support

v4.6.6 no-std #parser-combinator #input-stream #parser #combinator #parsing #ll #data-stream
wagon-togll

Example tool that uses the WAGon ecosystem to create GLL based parsers

v1.0.0 app #grammar #gll #wag #parser #parsing
gll-pg-core

A parser generator for GLL grammar, core library

v0.5.0 #parser-generator #gll #lexer #grammar #parser #recursion #logo
ielr

Table generation backend for LR parser generators

v0.1.1 #parser-generator #lr #grammar #generator #parser
parze

A clean, efficient parser combinator

v0.7.3 no-std #symbol #parser #parse #token #symbols #ast #no-std
daisychain

a method chaining parsing library

v0.0.5 #text-parser #parser #unicode-text #chaining #zero-copy #intuitive #performance
changelog_document

Feature-rich changelog format. Include a parser and serializer.

v0.1.7 #parser-serializer #changelog #serialize #parser #release-note #changelog-generator #pom-based
nom-packrat

Extension of nom to apply Packrat Parsing

v0.7.0 2.6K #nom #parser #packrat #extension #apply #packrat-parser
valk-utils

Dead simple functions that valkyrie_pilot uses, and maybe you can too

v0.1.2 340 #utilities #functions #dead #maybe #valkyrie-pilot
binator

Parser Combinator

v0.3.0 nightly no-std #parser-combinator #combinator #parser #hex-color #nom #utilities #parsing
unscanny

Painless string scanning

v0.1.0 91K #string-parser #scanning #string-pattern #tokenizing #grammar #painless #list
pest_generator

pest code generator

v2.7.15 3.5M no-std #pest-parser #parser-generator #pest-grammar #pest #generator #expression #language
rusty_lr_buildscript

buildscipt tools for rusty_lr

v0.22.1 #compiler #glr #lr #bison #proc-macro #parser #yacc
mexe

arithmetic expression evaluator

v0.2.0 #expression-evaluator #expression-parser #arithmetic #expression #evaluator #math-parser #eval
somen

An asynchronous parser combinator

v0.3.1 no-std #parser-combinator #parser #async #asynchronous
parserc

Asynchronous-compatible parser combinator library for rust language

v0.1.1 #parser-combinator #input #data #language #asynchronous-compatible
combine-language

Extra parser combinators, useful for parsing programming languages

v4.0.0 210 #programming-language #parser-combinator #language #combine #combinator #ll #parser
rspg

LR(1) parser generator library

v0.0.3 #parser-generator #generator #lr #grammar #parser
shunting

evaluating math expressions

v0.1.2 #expression-parser #math-parser #math #expression #eval
css_forge

A robust and efficient CSS parsing library for Rust

v0.1.0 #css-parser #css #parser #style #parse-error
tree-sitter-embedded-template

Embedded Template (ERB, EJS) grammar for tree-sitter

v0.23.2 8.3K #tree-sitter #templating-engine #incremental #parser #embedded-template
lrpar

Yacc-compatible parser generator

v0.13.8 9.2K #parser-generator #grammar #lr #yacc #parser
alder

Parser combinator library inspired by Elm parser error messages

v0.10.0 #parser-combinator #parser #error-message #elm #combinator #error-context
pom-preview

PEG parser combinators using operator overloading without macros

v3.0.4-alpha-1 #parser-combinator #operator-overloading #peg #parser #parsing
accept

My personal parser combinator library, deciding what tokens to accept

v0.1.0 #parser-combinator #token-parser #personal
glr

RNGLR parser generator

v0.2.0 #context-free-grammar #parser-generator #parser #grammar #lr #user-input
derive-finite-automaton

Procedural macro for generating finite automaton

v0.2.0 110 #proc-macro #tokenization #automata #macro-derive #parser #generate #utils
pratt-gen

Generate recursive-descent & precedence climbing parsers

v0.1.0 #compiler #parser-tools #parser #macro-derive
muncher

Easy to use char muncher for writing a lexer

v0.7.0 490 #lexer #parse #token #munch
nom_learn

WhileDB

v0.1.5 #nom #while-db #learn
tuker

A small tokenizer/parser library with an emphasis on usability

v0.1.0 #lexer #tokenizer #parser #tokenize #parse-tree
lalrpop-snap

convenient LR(1) parser generator

v0.16.0 1.3K #parser-generator #lr #grammar #generator #yacc #parser
wee-peg

Parsing Expression Grammar (PEG) parser generator

v0.5.4 bin+lib #grammar #peg #parser #parser-generator
kilo

small, fast utility crate/library for manipulating strings and generating sourcemaps with all in Magic 🪄

v0.1.0 #source-map #magic-string #string-manipulating #generate #string-parser #parser
rustemo-compiler

Rustemo compiler and development tools

v0.7.0 150 bin+lib #parser-generator #grammar #lr #generator #parser
winnow-rule

A procedural macro for defining winnow combinators in simple DSL

v0.1.1 macro #winnow #parser #proc-macro #parser-generator #macro #generator #pest
do-not-use-antlr-rust

ANTLR4 runtime for Rust

v0.3.0 #run-time #parse-tree #antlr4 #parser-generator #antlr #runtime #parser
nom8

A byte-oriented, zero-copy, parser combinators library (fork for proposals for v8)

v0.2.0 66K no-std
synattra

A Syn Attribute Parser Toolkit

v0.2.1 104K #attributes #parser #macro #parse-attributes #foo-bar
aott

Aspect Of The Tokens - a parser combinator framework

v0.2.0 no-std #parser-combinator #combinator #token #syntax #token-parser #parser
munch

Blazing fast, zero-copy parser combinator library with an elegant API for both strings and bytes

v0.8.0 #parser-combinator #string-parser #zero-copy #byte #elegant #blazing #api
ripeg

Incremental PEG parser Rust library

v0.1.3 #peg #parser #grammar #packrat
langlang

parser generator based on Parsing Expression Grammars (tools)

v0.1.2 app #parser-generator #grammar #expression #recursion #error #language #error-reporting
nom-regex

regular expressions for nom parsers

v0.2.0 9.2K no-std #regex-parser #nom #parser-combinator #parser #expression-parser #re
parcours

Parser Combinators for Unique Results

v0.3.0 #parser-combinator #unique #results #performance #constrained #environment #high
thin-shunting

evaluating math expressions

v1.0.0 #math-parser #expression #shunting #math #parser #eval
marpa

Safe bindings to the libmarpa parsing engine

v0.3.0 #parser #bindings #engine #grammar #thin #libmarpa
quake_infostring

Parse QuakeWorld info strings

v0.1.0 #parse #quake #quake-world #info #string
abackus

Parser builder using EBNF

v0.2.6 #grammar #earley #cfg #ast #parser
ruminant

An exploration into implementing parser combinators

v0.17.0 100 #parser-combinator #combinator #input #extract
pag-parser

Parser-lexer fusion generator (parser generator)

v0.1.0-alpha.1 #parser-generator #grammar #cfg #parser
parco

Zero-cost parser combinators

v5.1.0 #combinator #parser-combinator #zero-cost
logos-cli

Create ridiculously fast Lexers

v0.15.0 430 no-std app #lexer #tokenizer #lexical #state-machine #lookup-tables #parser #compile-time
static-regular-grammar

Derive macro for static regular grammar

v2.0.2 4.6K macro #grammar #regular #derive #parser #abnf #automata
chumsky-branch

branch combinator for the chumsky parsing library

v0.2.0 #combinator #parser-combinator #branch #pattern #chumsky #string #second
pex

A nightly parser combinator library for Rust

v0.2.4 nightly no-std #parser-combinator #parser #monads
skimmer

streams reader

v0.0.3 #byte-stream #reader #tokenizer
chomp

A fast monadic-style parser combinator designed to work on stable Rust

v0.3.1 120 #parser-combinator #parser #parsing #streaming #data-structures #standard-error
gnaw

Conveniently chip small pieces off a slice or str to use elsewhere

v0.0.2 #slice #drain #consume #narrow
pest_typed

A statically typed version of pest

v0.17.1 350 no-std bin+lib #pest-parser #pest #grammar #syntax-tree #statically-typed #peg #parser
parslers

A Staged Selective Parser Combinator Library for the Rust Programming Language

v0.1.1 nightly #parser-combinator #combinator #parser
nyst

parser library

v0.5.2 #parser-combinator #parse #stream #parser
oom

One or Many types (Haskell NonEmpty)

v0.3.0 no-std #non-empty #slice #traits #vec #mut #vec-t #counterpart
parsed

Parser combinators library

v0.3.0 #parser-combinator #combinator #parsed #monadic
strtoint

Parse integers from strings, with support for base prefixes

v0.1.0 no-std #hex #octal #binary #int #parse-int #primitive-integer
rusty-snowflake

generating and parsing Snowflake IDs

v0.2.0 350 #snowflake-id #id-generator #generate #parser #worker #timestamp #sequence
rzcalc

calculator expression parser and evaluater using recursive descent parser, written in rust

v0.1.0 #calculator #math #math-parser #recursive-descent #util #expression-parser #parser
parcos

minimal parser combinator library

v0.0.5 #parser-combinator
plex

A syntax extension for writing lexers and parsers

v0.3.1 700 macro #parser #lexer #parser-generator #generator #scanner #tokenizer
abortable_parser

A parser combinator library with an emphasis on error handling

v0.2.6 #parser-combinator #combinator #error #parser #nom #composition #macro
textpos

A small library to track human-readable text positions

v0.3.3 #text #position #track #human-readable #line
or-rs

or-rs's enum types

v0.1.2 #macro #either #or
chonk

A lightweight parser combinator framework

v0.5.0 #parser-combinator #input #ctx #str #framework #bounds #error
tree-sitter-starlark

Starlark grammar for tree-sitter

v1.3.0 160 #tree-sitter #starlark #parser #incremental
pcomb

A tiny parser combinator library

v0.3.0 no-std #parser-combinator #parser #combinator #text
estring

way to parse a string using type annotations

v0.3.0 #string-parser #parser #annotations #customizable #type
gll-pg-macros

A parser generator for GLL grammar, macros part

v0.5.0 nightly macro #gll #parser #macro
pegtastic

Parsing Expression Grammar (PEG) parser generator

v0.1.0
pest_debugger

pest grammar debugger

v2.7.14 bin+lib #pest-grammar #pest-parser #grammar #pest #debugging
enso-flexer

A finite-automata-based lexing engine

v0.2.0 nightly #lexer #flexer #enso #state #lexing #language #transition
fabparse

A minimized parser combinator library

v0.1.1 #parser-combinator #input #traits #minimized #data #output #repeat
laps_regex

Tools for generating NFAs, DFAs and state-transition tables from regular expressions

v0.1.1 380 #regex #lexer #automata #parser #laps #generate
kombi

A Parser Combinator Library

v0.2.2 #parser-combinator #batteries #iterator #transform #iterator-based #together #value
pacosso

https://github.com/toschoo/pacosso/blob/master/README.md

v0.2.5 #parser-combinator #streaming-parser #parser #json-parser #parsing-framework
pest_tmp

The Elegant Parser

v2.1.1 #pest-parser #pest #grammar #peg #parser #error-reporting #regular-expressions
safe-regex-compiler

Regex compiler for the safe-regex crate

v0.3.0 24K #regex #regular #expression #re #output-format
libreda-stream-parser

Very simple parser generator for parsing data streams

v0.2.0 #stream #data-stream #parser #lexer #tokens #iterator #splitting
keyword-parser

Keyword parser for combine

v0.0.3 no-std #combine
kg-syntax

Runtime LR(1) parser generator library

v0.3.0 nightly #parser-generator #run-time #lr #beta #stable #channel
markab_parser

copy-less and rich-error-message parser combinator library

v0.7.0 #parser-combinator #parser #string-parser #message-parser #combinator #copy-less #rich-error-message
look_ahead_items

I was repeating, and sometimes I wanted to look ahead. Shifted by chunks instead of one.

v0.1.1 #ahead #look #parser #items #chunks #repeating #wanted
tree-sitter-rigz

Rigz grammar for tree-sitter

v0.3.0 #tree-sitter #incremental #parser #rigz
logos-iter

Extensions for Logos lexer

v0.1.3 850 no-std #lexer #logo #extension #no-std
calculator-parser

calculation parser for user input

v1.0.1 #calculator #math #parser #user-input
tinyparse

A tiny combinator parser library

v0.2.3 #tiny #combinator #parser #simple
posix-regex

parsing POSIX regular expressions

v0.1.1 480 nightly no-std #regex #posix #regular #expressions #parser #basic #no-std
zordon

low-level abstractions for zero-copy parsing and mutation

v0.2.0 #zero-copy #parser #abstraction #mutation #u8 #low-level #macro-derive
volt_parse

The advanced, slightly different take on the parser combinator concept

v0.5.0 nightly #parser-combinator #parser #text #parse #volt
parseme

A framework for building robust parsers

v0.2.0-alpha no-std #parser-combinator #framework #xid #unicode #building #identifier #robust
destruct-lib

Destruct structs and enums for simpler combinator implementation

v0.1.2 #destruct #combinator #parser #construct #self #simpler #metadata
strtools

containing various string utilities

v0.3.1 nightly #escaping #string #str #utilities
tree-sitter-hygen-template

Hygen Template grammar for tree-sitter

v0.3.2 180 #tree-sitter #incremental #parser #hygen-template
char-circle

A circular buffer for strings and traits for in-place string transforms

v0.1.0 #circular #circular-buffer
enquote

Quotes and unquotes strings

v1.1.0 79K #string #quote #unquote #unquotes #unescapes
bitvec-nom

Bit level parsing for nom with bitvec

v0.2.0 no-std #parser-combinators #parser-combinator #bit-vec
coolrule

A boolean expression evaluator. A Rust port of boolrule.

v0.1.0 #expression-evaluator #boolean #parser-combinator #port #evaluation #engine #evaluating
combpop

Type-based parser combinator

v0.0.3 #parser-combinator #parser #combinator #ll #combinators
fkl_ext_api

Feakin is a architecture design and visual collaboration tool. This is the parser for Feakin.

v0.4.0 #architecture #parser #feakin #env #api #design #collaboration
statemachine

working with statemachines

v0.1.0 #automata #state #fsm #automaton #state-machines
paco

parser combinator library

v0.1.3 bin+lib #parser-combinator #combinator #lexer #parser #recursive-descent
in-place-string-map

An in-place string modification library

v0.1.0 no-std #text #utility #parser #no-std
flexi-parse

flexible parsing

v0.10.0 #parse #parser #syntax-error #delimiter #string-parser #flexible #white-space
char-lex

Create easy enum based lexers

v1.0.5 #lexer #lexing #tokenizer #parser #char
tree-builder

Parser Generator library which uses Nom and procedural macros to generate recursive-descent parsers

v0.0.3 #parser-generator #parser #nom #context-free-grammar #macro #generate #input
cursortanium

A solid cursor for Rust

v0.1.0 #cursor #parser #solid #imperative
from-str-sequential

A FromStr-like trait for enums, matching the first compatible variant

v0.1.0 #string #derive #utility #parser #convert-string #variant-name #derive-debug
lld-pg

lld-script parser and generator

v0.1.2 #generator #lld #lld-script #parer #parser-generator #beta
bnf_rules_parser

LR(1) parser generator

v0.1.4 #parser-generator #bnf #lr #rules #grammar #tokenizer #bnf-rules
relex

building a regex-based lexer

v1.0.0 #lexer #regex #regular #expression #debugging #derive-debug
blex

A lightweight lexing framework

v0.2.2 #token #tokenizer #lexer #tokenization #lex
new-pkl

Fastest PKL-parsing crate out there!

v0.1.1 bin+lib #pkl #ast #lexer #rust #parser
key-list

A very minimal crate to get you a specific sequence between two characters in a string, fast

v1.0.0 #list #key #substring #performance #fast #minimal #utility
pdl-derive

PDL's derive macro

v0.3.2 700 macro #parser-serializer #pdl #serialization #parser #grammar #macro-derive
racc_runtime

RACC is a port of Berkeley YACC to Rust, and allows you to write grammar definitions directly in Rust source code

v0.1.1 #port #berkeley #grammar #racc #source #write #yacc
eles

ELES; Extensible Logical Expression Solver

v1.0.0 #extensible #parser #logical #expression #text
pahs

A pahsing (parsing) library

v0.1.0-alpha.5 #parser #pahsing #heavily
tuck5

A pragmatic lexer/parser generator

v0.2.0 #lexer #parser-generator #tokenization #parse #lex #parser #domain-specific-language
peginator_codegen

Buildscript support for peginator (a PEG parser generator)

v0.7.0 #parser-generator #parser #peg #grammar #ast
noam

A byte-oriented, zero-copy, parser combinator library

v0.1.0 #parser-combinator #parser
num-parse

Generic, JavaScript-like parseInt() functions for Rust

v0.1.2 #parse #numbers #parse-int #num #generic #functions #uint
simple-lexer

runtime lexer generator

v0.1.0 #lexer-generator
wop

An front-end to lrp

v0.1.0 bin+lib #front-end #grammar #lrp #lexer #rule #parser #input
fhir-derive

FHIR-RS macro implementation

v0.1.0 140 macro #fhir #healthcare #hl7 #rust
escape_it_lib

Converts white-space characters into their escaped versions in provided Strings

v0.1.0 #escaping #string #characters #convert #versions #white-space #lib
layered-amount

Amount plugin for layered-nlp

v0.1.1 #tokens #nlp #grammar #layered-nlp
rxml_proc

Macros to, at compile time, validate strings against the CData, Name and NCName productions from the XML 1.0 grammar

v0.11.0 430 macro #xml #string #rxml #name #compile-time #validation #macro
pex-trie

A parser combinator library for Rust

v0.0.3 #pex-trie #combinator #parser-combinator
escafers

parser & generator for escape sequences

v0.1.0 #escaping #parser-generator #generator #term #parser #rust
nano_parser_gen

A parser generator inspired by yacc (types and functions)

v0.2.1 #parser-generator #yacc #functions #types
pest_railroad

Railroad (aka syntax) SVG diagram generator for Pest parsers. It supports most (but not all) Pest grammar rules.

v0.1.0 #pest #pest-parser #pest-grammar #diagram #syntax #parser #peg
lemon-tree

Famous Lemon Parser Generator, designed as library that builds your parser transparently during cargo build. Use attributes to describe parser rules.

v0.1.7 #parser-generator #lalr-parser #lalr #lemon #generator #cargo-build #parser
regex-lexer-lalrpop

A regex-based lexer (tokenizer)

v0.3.0 #regex #lexer #tokenizer #regex-parser #parser
memoir

self-describing parser combinators

v0.3.0 #parser-combinator #self-describing #language #symbol #string #prelude #optional
ratatat

expressive parser combinators with caching

v0.1.1 #parser-combinator #parser-generator #cache #input #context #expressive
peruse

A small parser combinator library

v0.3.0 #parser-combinator #parser #combinator
parsell

LL(1) streaming parser combinators

v0.6.5 nightly #parser-combinator #streaming-parser #parser #streaming #parsing
lox-scanner

lexical scanner for Lox

v0.1.0 bin+lib #scanner #lox #lexer #token
jpar

A text-oriented, zero-copy, parser combinators library

v0.1.0 no-std #parser #parser-combinator #input #zero-copy #text-oriented
peggle

regex-like parsing library, capable of handling Parsing Expression Grammar (PEG) rules

v0.1.0 #regex-parser #parser #peg #grammar
sas-lexer-macro

Internal macro for sas-lexer crate

v0.1.1 macro #lexer #sas #parser
pm-lexer

sample lexer using the proc-macro crate, to be used in the pomelo testings

v0.1.4 #lexer #proc-macro #pomelo #sample #lemon #procedural #parser-generator
clip_core

Defines clip core traits

v0.2.0 #clip #traits #parser #defines #command-line #structures #clip-derive
binator_context

Group commun context handle to use with binator

v0.0.2 no-std #parser-combinator #context #combinator #parser
pegtastic-runtime

Runtime support for pegtastic grammars. To use pegtastic, see the pegtastic crate.

v0.1.0 #grammar #parser #parser-generator #pegtastic #error #parse-error #expression
prattle

General, configurable Pratt/TDOP parser

v0.1.3 #parser #grammar #pratt #tdop
re-set

Regular expression set parser at run time

v0.2.0 #regex #regex-parser #set
inference_core

Feakin is a architecture design and visual collaboration tool. This is the parser for Feakin.

v0.1.0 #inference #onnx #model #edge
kamo

assist in the creation of an interpreter or compiler and its associated runtime

v0.9.4 #memory-management #garbage-collection #type-checker #scheme-interpreter
rslua_traits

Some traits for rslua

v0.1.0 #lua #lexer #parser #lua53
tree-sitter-fluentbit

fluent-bit grammar for tree-sitter

v0.1.0 #tree-sitter #parser #incremental #fluentbit
hime_redist

Redistributable runtime library for parsers generated with Hime (LR, RNGLR)

v4.4.0 no-std #lr #hime #glr #parser #rnglr #text-parser #parse-input
ruly

parser generator from context free grammar

v4.1.1 #context-free-grammar #parser-generator #cfg #parser
oak_runtime

Parser generated by Oak depends on this library. Please consult the package Oak for more informations.

v0.6.0 #grammar #peg #combinator #parser #parser-generator
tokenate

do some grunt work of writing a tokenizer

v0.1.0 #token #tokenize #inner #parse
perplex

A grammar analyzer and LR(k)/GLR parser generator

v0.4.1 bin+lib #parser-generator #grammar #analyzer #lr #glr
simple-cursor

A super simple character cursor implementation geared towards lexers/tokenizers

v0.1.1 no-std #cursor #string #iterator #lexer #tokenizer #no-alloc
astray_core

Core functionality of the astray macro

v0.1.18 nightly
from-regex

Derive deserialization of structs and enums from regex patterns

v0.2.1 #regex #derive #enums #struct #deserialize
dsntk-macros

dsntk | Decision Toolkit | Procedural and derive macros

v0.0.9 180 macro #dmn #decision #toolkit #macro-derive #macro #macros
peginator-cli

Command line interface for peginator (a PEG parser generator)

v0.7.0 app #parser-generator #peg #parser #command-line-interface #grammar #arguments-parser #ast
plain

A small Rust library that allows users to reinterpret data of certain types safely

v0.2.3 665K no-std #memory #data-structures #pod #memory-safe #ffi #byte-array
regex-lexer

A regex-based lexer (tokenizer)

v0.2.0 #regex #lexer #tokenizer #regex-parser #parser
rumtk-core

Core library for providing general functionality to support the other RUMTK crates. See rumtk-hl7-v2 crate as example

v0.1.1 210 #hl7 #healthcare #rumtk #core #v2
grammar_tool

understanding LL(k) grammars

v0.1.0 app #ll #recursion #descent #yacc #parser
somen-language

somen parser combinator for languages

v0.1.0 no-std #parser-combinator #parser #language
pag-compiler

Parser-lexer fusion generator (compiler interface)

v0.1.0-alpha.1 #parser-generator #grammar #cfg #parser
nailgun

A PEG parser generator

v0.1.0 nightly bin+lib #parser-generator #peg #generator #parser #expression #grammar #lex
wagon-parser

Parser for the WAGon DSL

v1.0.0 #grammar #wag #parser #gll
simple-parser-bootstrap

runtime recursive descent parser generator

v0.1.0 #parser-generator #parser #recursion #run-time #descent
sana

Create lexers easily

v0.1.1 #lexer #generator #tokenizer #scanner
oni-comb-toys-rs

toys parser

v0.0.2 app #toys #parser #language #parser-combinator #scripting-language
regular-expression

parsing, compiling, and executing regular expressions

v0.1.0 #regex #re #executing #compiling #parser #regexp
chars_input

chars input

v0.2.2 nightly no-std #input #chars #text
parol-macros

Macros for LL(k) parser generator parol

v1.0.0 460 #parser-generator #parser #lalr-parser #llk #parsing
rcombinators

A parser combinator library in rust

v0.1.0 #parser #parser-combinator #parse
stringslice

A collection of methods to slice strings based on character indices rather than bytes

v0.2.0 4.4K no-std #slice #substring #string #unicode #utf-8
nom-errors

Strong-typed errors support for nom parser combinator library

v0.0.13 180 nightly #nom #error #parser-combinator #typed
indented-blocks

parser for indented blocks

v0.6.0 no-std #blocks #indented #parser
tree-sitter-yarnlock

Yarnlock grammar for tree-sitter

v0.2.0 280 #tree-sitter #incremental #yarnlock #parser #parsing
string-to-num

A trait for easy parsing of decimal, hexidecmal, binary, and octal numbers

v0.1.2 #str #parser #string #utility #string-parser
anpa

A generic monadic parser combinator library inspired by Haskell's parsec

v0.7.0 180 no-std bin+lib #parser-combinator #json-parser #parser #parsec
nom-bufreader-rp

BufReader adapter for nom parsers

v0.2.0 #streaming-parser #parser #streaming #nom #async #parser-combinator
combine-proc-macro

Support for using combine parser combinators with the proc_macro API

v0.3.1 #parser-combinator #combine #proc-macro #macro #macros
combine-regex-1

Re-export of regex 1.0 letting combine use both 0.2 and 1.0

v1.0.0 110 #parser-combinator #combine #regex #re-exports #construct #versioning #define
test_eq

assert_eq!-like macros that return a Result instead

v0.2.0 150 #macro #testing #test-any #test-ne #test-macro
simple-interner

append-only interner

v0.3.4 #string-interning #interning #symbol #string #cache #symbols #intern
tree-sitter-flatbuffers

Flatbuffers grammar for tree-sitter

v0.1.8 #tree-sitter #flat-buffers #incremental #parser
condex

Extract tokens by simple condition expression

v1.0.0 #splitter #sentence #parallel #lexer #tokenizer
tree-sitter-ocaml

OCaml grammar for tree-sitter

v0.23.2 1.0K #tree-sitter #ocaml #parser #incremental
transliterate

A string to string parser which avoids the intermediate tree by building the output string directly

v0.1.1 #parser #string-parser #parser-combinator #string #combinator
pest_generator_tmp

pest code generator

v2.1.0 #pest #generator #parser #grammar #peg #elegant #complex
input-stream

IO streams similar to C++'s streams

v0.4.0 #stream #io-stream #io #parser
somen-decode

A byte string decoder for somen

v0.1.0 #decode #parser #byte-string #parser-combinator #encoding
pest_grammars

pest popular grammar implementations

v2.7.15 200 #pest-parser #pest-grammar #grammar #peg #pest #parser
flexar

An extremely flexible lexer/parser (get it?) for writing your own programming language

v1.2.6 bin+lib #lexer #programming-language #lexical #language #compiler-error #parser
perplex-runtime

Runtime library for parsers generated by perplex

v0.1.1 #parser-generator #perplex #generated #analyzer #lr #grammar #run-time
prexel

A math expression evaluator

v0.1.9 #expression-evaluator #math-parser #evaluate
peg-pack

Versatile parser generator for PEG grammars

v0.1.0 bin+lib #peg #grammar #generator #parser-generator #versatile #instructions #pack
lighter

Macro for rewriting string matches as tries

v0.1.0 no-std #match #string #trie #optimization #byte
folder_compare

Compare two folders and get a list of changed and new files

v0.4.0 500 #diff #directory #changed #compare #list #folder #recursion
pegy

A derive based parser generator

v0.1.2 #parser-generator #grammar #peg #async #parser #error-message #ast-parser
bin_buffer

writing objects to binairy buffers

v0.1.12 #buffer #io #bin #data #objects #read #f64

Next page?

nom

pest

logos

lalrpop

combine

peg

chumsky

pom

bitreader

tree-sitter-rust

pest_meta

parol

rustlr

tree-sitter-c

tree-sitter-swift

yap

rusty_parser

cfgrammar

antlr-rust

nom-derive

minimal-lexical

cfg

token-string

nom-tracer

splitty

monch

lrlex

rustemo

oni-comb-parser-rs

tree-sitter-elixir

nom-recursive

tree-sitter-scala

laps

lelwel

pest_consume

gramatica

pidgin

supply-chain-trust-example-crate-000099

locspan

bitvec-nom2

descape

safe-regex

peginator

rustylr

earlgrey

gallop

yggdrasil-rt

pest_vm

inpt

structview

tree-sitter-cpp

lrtable

lieval

tokenizer-lib

parcelona

rusttyc

chomp1

fn-bnf

rusticata-macros

gramma

alkale

lexerus

fast-float

pest_typed_generator

kiki

glue

syntax-parser-generator

syntaxe

logos-codegen

pomelo

tuckey

pest_railroad_gen

pa-rs

bnf_rules

ndef-rs

peg-runtime

parsa

lib-lexin

lexers

rust-bison-skeleton