scala/scala-parser-combinators

View on GitHub

simple combinator-based parsing for Scala. formerly part of the Scala standard library, now a separate community-maintained module

Stars: 679
Forks: 131
Open beginner issues: 0
Indexed issues: 21
Avg merge: 8h 25m
Merged PRs (30d): 3

Dominant language: Scala
License: Apache-2.0
Last GitHub push: Sep 8, 2026
Latest indexed: Sep 19, 2026
Contributing guide: No contributing guide
Code of conduct: Code of conduct
Beginner labels: good first issue help wanted

Beginner friendly Everything

Open All

21 open issues indexed

Incorrect mismatch location reported by RegexParsers Open

Difficulty 2/5 1-3 hours Newbie friendliness 55/100

scala/scala-parser-combinators#573 · Opened Dec 15, 2024
`|||` parser reports error on only one of the explored branches Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

scala/scala-parser-combinators#565 · 1 comment · Opened Oct 11, 2024
`phrase` method loses error context when successful parse result has lastFailure Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

scala/scala-parser-combinators#518 · Opened May 30, 2023
Consider providing typesafe structural equality for A ~ B by default Open

help wanted

Difficulty 5/5 Over a week Newbie friendliness 35/100

scala/scala-parser-combinators#477 · 1 comment · Opened Aug 20, 2022
Inability to specify EOF in TokenParsers.Parser Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

scala/scala-parser-combinators#458 · 1 comment · Opened May 11, 2022
Scala 3 union types don't always play nicely with choice Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

scala/scala-parser-combinators#455 · 2 reactions · Opened Apr 6, 2022
Declaration "class MyParser[A] extends RegexParsers with PackratParsers" does not compile Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

scala/scala-parser-combinators#398 · 1 comment · Opened Jun 10, 2021
Non-capturing group not working Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

scala/scala-parser-combinators#383 · Opened May 12, 2021
stringLiteral parser of JavaTokenParsers ends up with a Stackoverflow error since scala upgrade Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

scala/scala-parser-combinators#371 · 4 comments · Opened Apr 15, 2021
Potential bug with indirect left-recursion Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

scala/scala-parser-combinators#247 · 2 comments · Opened Nov 6, 2019
ParseResult and its subtype are members of scala.util.parsing.combinator.Parsers Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

scala/scala-parser-combinators#236 · 1 comment · Opened Aug 19, 2019
Add code from chapter 33 of "Programming in Scala" as tests Open

good first issue

Difficulty 3/5 1-2 days Newbie friendliness 35/100

scala/scala-parser-combinators#223 · 3 comments · 1 reaction · Opened Jun 21, 2019
Fork with completion support Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

scala/scala-parser-combinators#91 · 4 comments · Opened Dec 8, 2016
Making position a type member in parsers.scala Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

scala/scala-parser-combinators#89 · Opened Nov 27, 2016
Make literal and regex more flexible wrt whitespace Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 30/100

scala/scala-parser-combinators#25 · 2 comments · 1 reaction · Opened Jul 25, 2014
PackratParsers and RegexParsers / JavaTokenParsers don't work well in combination Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

scala/scala-parser-combinators#318 · 2 comments · Opened Dec 14, 2013
Parser combinator framework consumes unnececessary amount of memory Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

scala/scala-parser-combinators#319 · 2 comments · Opened Oct 12, 2012
RegexParsers: skipWhitespaces when using implicit conversion from a character Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

scala/scala-parser-combinators#320 · 2 comments · Opened Oct 9, 2012
Add ability to defined new parser combinators Open

Difficulty 5/5 Over a week Newbie friendliness 32/100

scala/scala-parser-combinators#323 · 2 comments · Opened Oct 1, 2009
JavaTokenParsers stringLiteral Unicode literals not fully correct Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

scala/scala-parser-combinators#324 · 2 comments · Opened Dec 4, 2008
Case insensitive regexs in parser combinators Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

scala/scala-parser-combinators#325 · 4 comments · Opened Nov 5, 2008

scala/scala-parser-combinators

Get new issues in your inbox