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wtf is antlr-swift-playground?

krzyzanowskim/antlr-swift-playground — explained in plain English

Analysis updated 2026-07-17 · repo last pushed 2018-07-23

★ 15SwiftAudience · developerComplexity · 3/5DormantSetup · moderate

TL;DR

A Swift sandbox for learning how to build parsers with ANTLR, letting you experiment with grammar rules and test inputs.

Mindmap

mindmap
  root((repo))
    What it does
      Parser sandbox
      Define grammar rules
      ANTLR generates code
    Tech stack
      Swift
      ANTLR
      Xcode
    Use cases
      Build a DSL
      Design config formats
      Learn parsing
    Audience
      Developers
      Learners
    Setup
      Swift Package Manager
      Or generate Xcode project

Code map

Detail Auto

An interactive map of this repo's files and how they connect — its source is parsed live in your browser. Click Visualize to build it.

filefunction / class

Why would anyone build with this?

REASON 1

Learn how parsers work by defining grammar rules and testing them against sample input.

REASON 2

Prototype a domain-specific language for a particular problem before building it for real.

REASON 3

Design and test a custom configuration file format's syntax rules.

REASON 4

Experiment with ANTLR-generated Swift parsing code in a low-stakes playground.

What's in the stack?

SwiftANTLRXcode

How it stacks up

krzyzanowskim/antlr-swift-playgroundemanuele-web04/remodextextkitrryam/musaverakit
Stars151515
LanguageSwiftSwiftSwift
Last pushed2018-07-23——
MaintenanceDormant——
Setup difficultymoderateeasyeasy
Complexity3/53/52/5
Audiencedeveloperdeveloperdeveloper

Figures from each repo's GitHub metadata at analysis time.

How do you spin it up?

Difficulty · moderate Time to first run · 30min

Requires familiarity with ANTLR grammar syntax and either Swift Package Manager or Xcode.

Shared under a Creative Commons license that allows educational use.

Yoink these prompts

Prompt 1
Help me define a grammar rule in this repo's ANTLR playground for a simple instruction language.
Prompt 2
Walk me through generating an Xcode project from this repo so I can experiment visually.
Prompt 3
Explain how the generated Swift parser code in main.swift processes my test input.
Prompt 4
Help me extend this playground's grammar to support a config file format I'm designing.

Frequently asked questions

wtf is antlr-swift-playground?

A Swift sandbox for learning how to build parsers with ANTLR, letting you experiment with grammar rules and test inputs.

What language is antlr-swift-playground written in?

Mainly Swift. The stack also includes Swift, ANTLR, Xcode.

Is antlr-swift-playground actively maintained?

Dormant — no commits in 2+ years (last push 2018-07-23).

What license does antlr-swift-playground use?

Shared under a Creative Commons license that allows educational use.

How hard is antlr-swift-playground to set up?

Setup difficulty is rated moderate, with roughly 30min to a first successful run.

Who is antlr-swift-playground for?

Mainly developer.

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