Scala Parser Combinators
simple combinator-based parsing for Scala. formerly part of the Scala standard library, now a separate community-maintained module (by scala)
Fast Parse
Writing Fast Parsers Fast in Scala (by lihaoyi)
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| Scala Parser Combinators | Fast Parse | |
|---|---|---|
| 3 | 4 | |
| 631 | 1,050 | |
| 0.0% | -0.2% | |
| 3.6 | 7.3 | |
| 5 days ago | 3 months ago | |
| Scala | Scala | |
| Apache License 2.0 | MIT License |
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Scala Parser Combinators
Posts with mentions or reviews of Scala Parser Combinators.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2022-04-28.
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thoroughful tutorial for scala.util.parsing.combinator._
If you find anything that isn't already linked from the README at https://github.com/scala/scala-parser-combinators , please PR the addition to the readme.
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-🎄- 2021 Day 18 Solutions -🎄-
Mostly a mess of pattern matching. I really need to make some generic tree utilities. Haven't been able to find a decent parser combinator that works in Scala 3 (I usually use fastparse which depends heavily on Scala 2 macros, and scala-parser-combinators works in Scala 3, but I've had a lot of trouble getting it to not be too greedy), so I used the state monad from cats to parse at the bottom of the file, which I think turned out fairly nice.
Fast Parse
Posts with mentions or reviews of Fast Parse.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-04-09.
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How do I remove the forward reference error in my parser? (20 lines)
Perhaps use Li Haoyi's fastparse instead? https://github.com/com-lihaoyi/fastparse
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-🎄- 2021 Day 18 Solutions -🎄-
Mostly a mess of pattern matching. I really need to make some generic tree utilities. Haven't been able to find a decent parser combinator that works in Scala 3 (I usually use fastparse which depends heavily on Scala 2 macros, and scala-parser-combinators works in Scala 3, but I've had a lot of trouble getting it to not be too greedy), so I used the state monad from cats to parse at the bottom of the file, which I think turned out fairly nice.
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Parser generators vs. handwritten parsers: surveying major languages in 2021
Agreed! I would say that parser combinators are the sweet spot and the right choice in most cases.
Scala has them as well, e.g.: https://com-lihaoyi.github.io/fastparse/
And the good thing is, you don't have to learn a completely new language/syntax, you can use the host language's syntax and you have full IDE support as well.
What are some alternatives?
When comparing Scala Parser Combinators and Fast Parse you can also consider the following projects:
Parboiled2 - A macro-based PEG parser generator for Scala 2.10+
atto - friendly little parsers
Scopt - command line options parsing for Scala
Kaitai Struct - Kaitai Struct: declarative language to generate binary data parsers in C++ / C# / Go / Java / JavaScript / Lua / Nim / Perl / PHP / Python / Ruby
Scallop - a simple Scala CLI parsing library
decline - A composable command-line parser for Scala.
CLIST - Command Line Interface Scala Toolkit