Add Delimiter::Bang for CSS Custom Properties.

Author: SimonSapin

Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 
 name = "cssparser"
-version = "0.3.6"
+version = "0.3.7"
 authors = [ "Simon Sapin <[email protected]>" ]
 
 description = "Rust implementation of CSS Syntax Level 3"

src/parser.rs

@@ -124,6 +124,8 @@ pub mod Delimiter {
     pub const CurlyBracketBlock: Delimiters = Delimiters { bits: 1 << 1 };
     /// The delimiter set with only the `;` semicolon
     pub const Semicolon: Delimiters = Delimiters { bits: 1 << 2 };
+    /// The delimiter set with only the `!` exclamation point
+    pub const Bang: Delimiters = Delimiters { bits: 1 << 3 };
     /// The delimiter set with only the `,` comma
     pub const Comma: Delimiters = Delimiters { bits: 1 << 4 };
 }