Light

epfl-lara / scallion Goto Github PK

View Code? Open in Web Editor NEW

55.0 12.0 15.0 7.82 MB

LL(1) parser combinators in Scala

License: Apache License 2.0

Scala 90.67% ANTLR 0.34% Java 8.98%

scala parser parsing ll1 ll1-parser ll1-grammar parser-combinators parsing-combinators pretty-print pretty-printer

scallion's Introduction

Overview

Scallion is a library for writing parsers and pretty printers for LL(1) languages in Scala.

Documentation

A comprehensive Scaladoc API is available online.

Parsing Algorithm

Scallion uses a novel parsing algorithm that we have described in the PLDI'20 paper: Zippy LL(1) Parsing with Derivatives. The algorithm has been formally proven correct in Coq.

Examples

JSON: This example showcases how to build a basic JSON parser using Scallion.
Lambda Calculus: This example shows how to get a pretty printer almost for free alongside your parser.
Calculator: This example shows how to use the operators combinator to easily handle operators with various associativities and priorities.
Roman Numerals: This example presents a simple parser and pretty printer for roman numerals.

scallion's People

Contributors

Stargazers

Watchers

Forkers

romac karnaj floriancassayre jad-hamza writeonly pialex99 ef55 lptk chenakam trebledj telechus cache-nez samuelchassot sankalpgambhir zireha

scallion's Issues

Remove bintray

Make Scallion either a non-dependency or a source dependency.
Consequently, do not rely on defunct bintray.

@redelmann : how we produce token stream should not matter for Scallion, or?

Add support for operators

Basically port my port for Fastparse of Megaparsec's operators :p

Set-up larabot

I have already added an entry for Scallion in the larabot config, now it should only be a matter of setting up the proper webhook for Scallion, using the same secret as your treenet project.

Source dependency on silex times out

My attempt to start sbt times out while trying to fetch silex source depenency:

[info] loading settings for project scallion from build.sbt ...
Cloning into '..../.sbt/1.0/staging/..../silex'...

(waits for long and gives up)

Any idea? My sbt defaults to 1.7.2

The project has been upgraded to Scala 3 but the benchmarks are still in Scala 2.12 (in particular, parseback-core and parseback-cats dependencies are available in Scala 2.12 at the latest; it is possible to upgrade other dependencies to Scala 2.13 or Scala 3) which is incompatible.

Recommend Projects

React

A declarative, efficient, and flexible JavaScript library for building user interfaces.
Vue.js

🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
Typescript

TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
TensorFlow

An Open Source Machine Learning Framework for Everyone
Django

The Web framework for perfectionists with deadlines.
Laravel

A PHP framework for web artisans
D3

Bring data to life with SVG, Canvas and HTML. 📊📈🎉

Recommend Topics

javascript

JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
web

Some thing interesting about web. New door for the world.
server

A server is a program made to process requests and deliver data to clients.
Machine learning

Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
Visualization

Some thing interesting about visualization, use data art
Game

Some thing interesting about game, make everyone happy.

Recommend Org

Facebook

We are working to build community through open source technology. NB: members must have two-factor auth.
Microsoft

Open source projects and samples from Microsoft.
Google

Google ❤️ Open Source for everyone.
Alibaba

Alibaba Open Source for everyone
D3

Data-Driven Documents codes.
Tencent

China tencent open source team.