From 98bfad4ea4ee80b8cb69d68b04abfc23416d2b72 Mon Sep 17 00:00:00 2001
From: John Sundell <john@sundell.co>
Date: Fri, 28 Sep 2018 13:52:51 +0200
Subject: [PATCH] SwiftGrammar: Enable delimiters and syntax rules to be
 mutated

This enables easy creation of custom grammars that are based on the Swift one.
---
 Sources/Splash/Grammar/SwiftGrammar.swift | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Sources/Splash/Grammar/SwiftGrammar.swift b/Sources/Splash/Grammar/SwiftGrammar.swift
index 591aef3..b987146 100644
--- a/Sources/Splash/Grammar/SwiftGrammar.swift
+++ b/Sources/Splash/Grammar/SwiftGrammar.swift
@@ -9,8 +9,8 @@ import Foundation
 /// Grammar for the Swift language. Use this implementation when
 /// highlighting Swift code. This is the default grammar.
 public struct SwiftGrammar: Grammar {
-    public let delimiters: CharacterSet
-    public let syntaxRules: [SyntaxRule]
+    public var delimiters: CharacterSet
+    public var syntaxRules: [SyntaxRule]
 
     public init() {
         var delimiters = CharacterSet.alphanumerics.inverted