Maartz

Maartz

New Swift's Regex DSL

Hey,

I love Regex, letting my kids slaming the keyboard until finding the good regex to do the job has always been a source of joy and pleasure.

But it seems that this time is over… at least for the Swift folks around here.

This DSL allows to create a Regex with in a “a la” SwiftUI approach.

import RegexBuilder

let emailPattern = Regex {
  let word = OneOrMore(.word)
  Capture {
    ZeroOrMore {
      word
      "."
    }
    word
  }
  "@"
  Capture {
    word
    OneOrMore {
      "."
      word
    }
  }
} // => Regex<(Substring, Substring, Substring)>

let email = "My email is my.name@mail.swift.org."
if let match = try emailPattern.firstMatch(in: email) {
  let (wholeMatch, name, domain) = match.output
  // wholeMatch: "my.name@mail.swift.org"
  //       name: "my.name"
  //     domain: "mail.swift.org"
}

The first exemple is absolutely terrific and I’ve watched the whole video. It’s promising.

What do you think of this new approach?
I’d be very happy to see it adopted in other languages. IMHO it’s time to drop the old syntax.

First Post!

AstonJ

AstonJ

Interesting! Wonder if something similar could be done for other languages?

I’d be lost without rubular.com :lol:

Where Next?

Popular General Dev topics Top

AstonJ
Thread to discuss ideas and thoughts on how developers might be able help in the Coronavirus pandemic.
New
AstonJ
In your opinion which programming languages are simple to use and easy to get started wither those who don’t have a computer science bac...
New
AstonJ
What do you think needs fixing in the digital / computer science sphere?
New
Exadra37
Have you ever wanted to build something but you had no idea what to do? Just as authors sometimes have “writers block” it’s also true for...
New
finner
One of my 2021 resolutions is to read more tech books. As part of this effort I purchased two MEAPs (Manning Early Access Program) which...
New
Rainer
Not sure if following fits exactly this thread, or if we should have a hobby thread… For many years I’m designing and building model air...
New
dwaynebradley
In their weekly newsletter, Jared Santo from the Changelog shared this blog post by Mark Ericksen over at fly.io: What is really inter...
New
AstonJ
Just listened to @rvirding’s interview here and he mentions #lua (and Luerl) - just wondered if anyone’s used Lua and what you think of it?
New
jaeyson
Hi all, does anybody tried Shankar Devy’s Phoenix Inside Out book series? Also, will there be a big difference (aside from context prior...
New
ivanhercaz
Hi! I usually keep changelogs for my projects because I think they are really useful, not only to track the changes and not to be lost b...
New

Other popular topics Top

PragmaticBookshelf
Ruby, Io, Prolog, Scala, Erlang, Clojure, Haskell. With Seven Languages in Seven Weeks, by Bruce A. Tate, you’ll go beyond the syntax—and...
New
dasdom
No chair. I have a standing desk. This post was split into a dedicated thread from our thread about chairs :slight_smile:
New
New
AstonJ
If you are experiencing Rails console using 100% CPU on your dev machine, then updating your development and test gems might fix the issu...
New
New
rustkas
Intensively researching Erlang books and additional resources on it, I have found that the topic of using Regular Expressions is either c...
New
Help
I am trying to crate a game for the Nintendo switch, I wanted to use Java as I am comfortable with that programming language. Can you use...
New
New
PragmaticBookshelf
Develop, deploy, and debug BEAM applications using BEAMOps: a new paradigm that focuses on scalability, fault tolerance, and owning each ...
New
RobertRichards
Hair Salon Games for Girls Fun Girls Hair Saloon game is mainly developed for kids. This game allows users to select virtual avatars to ...
New