Swift Lexer

Here is a dummy implementation of Swift lexer writter in pure swift.

Example

Usage: swiftl [FILENAME]

Simply pass swift source as a first argument. The lexer will paste the token sequence into stdout.

~$ cat A.swift
import Foundation

extension CGRect {
    /// Creates a rect with unnamed arguments.
    public init(_ origin: CGPoint, _ size: CGSize) {
        self.origin = origin
        self.size = size
    }
...
}

~$ swiftl A.swift > A.tokens
~$ cat A.tokens
KW_import Identifier("Foundation")

KW_extension Identifier("CGRect") Lbrace 
  KW_public KW_init Lparen KW__ Identifier("origin") Colon Identifier("CGPoint") Comma KW__ Identifier("size") Colon Identifier("CGSize") Rparen Lbrace
    KW_self OpPeriod Identifier("origin") OpEqual Identifier("origin")
    KW_self OpPeriod Identifier("size") OpEqual Identifier("size") 
  Rbrace 
...
Rbrace EOF

Installation

Build sources using xcodebuild. No additional dependencies.

License

swiftl is available under the MIT license. See the LICENSE file for more info.