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

Devtalk
Hello Devtalk World! Please let us know a little about who you are and where you’re from :nerd_face:
New
AstonJ
What chair do you have while working… and why? Is there a ‘best’ type of chair or working position for developers?
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
DevotionGeo
As the title suggests, this thread will contain some real wisdom came from experience. Please add something meaningful than fancy looking...
New
finner
When you are under pressure to deliver you ideally want your Pull Request to be reviewed, approved and merged as quick as possible. So do...
New
mafinar
I always start with excitement and then get busy on 9/10th day. This year, like the year before this, and the year before that, I intend ...
New
Exadra37
My brother got a VPS on https://contabo.com hosting provider, but I was not aware of them, and when my brother told me the price and spec...
New
harwind
I’m developing a web-based application that uses Java servlets to make RPC calls. I’m searching for a solid technique to dispatch and ha...
New
AstonJ
Thought this would be a nice way to start the year - have you seen or written a function (or method) or piece of code that you are partic...
New
AntonRich
I don’t know what happened today. But I just started reading SICP which I meant to do for a long time. The book itself: I’m not even s...
New

Other popular topics Top

AstonJ
Just done a fresh install of macOS Big Sur and on installing Erlang I am getting: asdf install erlang 23.1.2 Configure failed. checking ...
New
AstonJ
This looks like a stunning keycap set :orange_heart: A LEGENDARY KEYBOARD LIVES ON When you bought an Apple Macintosh computer in the e...
New
AstonJ
In case anyone else is wondering why Ruby 3 doesn’t show when you do asdf list-all ruby :man_facepalming: do this first: asdf plugin-upd...
New
mafinar
This is going to be a long an frequently posted thread. While talking to a friend of mine who has taken data structure and algorithm cou...
New
PragmaticBookshelf
Author Spotlight Mike Riley @mriley This month, we turn the spotlight on Mike Riley, author of Portable Python Projects. Mike’s book ...
New
hilfordjames
There appears to have been an update that has changed the terminology for what has previously been known as the Taskbar Overflow - this h...
New
New
CommunityNews
A Brief Review of the Minisforum V3 AMD Tablet. Update: I have created an awesome-minisforum-v3 GitHub repository to list information fo...
New
PragmaticBookshelf
Explore the power of Ash Framework by modeling and building the domain for a real-world web application. Rebecca Le @sevenseacat and ...
New
AstonJ
This is a very quick guide, you just need to: Download LM Studio: https://lmstudio.ai/ Click on search Type DeepSeek, then select the o...
New