//    Copyright (c) 2018, RED When Excited
//    All rights reserved.
//
//    Redistribution and use in source and binary forms, with or without
//    modification, are permitted provided that the following conditions are met:
//
//    * Redistributions of source code must retain the above copyright notice, this
//    list of conditions and the following disclaimer.
//
//    * Redistributions in binary form must reproduce the above copyright notice,
//    this list of conditions and the following disclaimer in the documentation
//    and/or other materials provided with the distribution.
//
//    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
//    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
//    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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//    OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

import Foundation

/// Extends `String` to implement `Terminal`
extension String : Terminal {
    public var matchDescription: String {
        return "\"\(self)\""
    }
    
    public func test(lexer: LexicalAnalyzer, producing token:TokenType?) throws {
        do {
            try lexer.scan(terminal: self)
        } catch {
            throw ProcessingError.scanning(message: "Failed to match \(token == nil ? "\(self)" : "\(token!)")", position: lexer.index, causes: [error])
        }
    }
}
