swift-emmet

A CLI tool that generate struct or class by simple-syntax.

$ swift-emmet "Pserson: E, C = name: S, age: I, weight: D"

This will generate follows.

struct Pserson: Equatable, Codable {
    var name: String
    var age: Int
    var weight: Double
}

TODO

• Decent REPL :)
• Support Apple Silicon
• Distribute binary for Linux

Aliases

Basic types and protocols are supported aliases (case is ignored).

The following commands are generate same outputs.

$ swift-emmet 'Person: E, C = name:S, age:I, weight:D'
$ swift-emmet 'Person: Equatable, Codable = name:String, age:Int, weight:Double'

struct Person: Equatable, Codable {
    var name: String
    var age: Int
    var weight: Double
}

Alias	Type
S	String
B	Bool
I	Int
L	Long
F	Float
D	Double
U	URL

Alias	Protocols
E	Equatable
C	Codable

Example

# Generate struct
$ swift-emmet 's.Person = l.name:String, v.age:Int, v.weight:Double'

# Generate class (with initializer)
$ swift-emmet 'c.Person = l.name:String, v.age:Int, v.weight:Double'

# Ommit `let` or `var` (`var` will be used)
$ swift-emmet 's.Person = name:String, age:Int, weight:Double'

# Inherit protocol or class
$ swift-emmet 's.Person: Equatable, Codable = l.name:String'

# Any white-space (or not) are allows
$ swift-emmet 's . Person = l . name : String'
$ swift-emmet 's.Person=l.name:String'

REPL

If you run swift-emmet without options, REPL will be started.

$ swift-emmet
--------------------------------------------------------------------
Welcome swift-emmet 🎉
...
--------------------------------------------------------------------

swift-emmet> S.Person = l.name:String # Please input expr

struct Person {
    let name: String
}

swift-emmet> exit # Bye

Available Commands

$ swift-emmet --help

Usage: swift-emmet [EXPR] [--version] [--usage]
  Generate struct or class from short syntax

Available options:
  EXPR                     Evaluate expression and print
  --version                Show version
  --usage                  Show detail usage
  -h,--help                Show this help text

Installation

Homebrew

$ brew tap YusukeHosonuma/swift-emmet
$ brew install swift-emmet

Manual

$ stack install
$ ~/.local/bin/swift-emmet # or add `~/.local/bin` to PATH environment

Development

Requirements:

• Stack 2.5.1
• GHC 8.10.3

$ stack build
$ stack test

Issues and PR

You have any ideas or found bugs? Any issue or PR is welcome.
Thanks!

Author

Yusuke Hosonuma