//
//  MPTokenStream.h
//  MathPad
//
//  Created by Kim Wittenburg on 20.09.14.
//  Copyright (c) 2014 Kim Wittenburg. All rights reserved.
//

@class MPTokenStream;
@protocol MPToken;

@interface MPTokenStream : NSObject

- (instancetype)initWithTokens:(NSArray *)tokens;

@property (nonatomic, copy) NSArray *tokens;

- (void)beginIgnoringWhitespaceTokens;
- (void)beginAcceptingWhitespaceTokens;
- (void)endIgnoringOrAcceptingWhitespaceTokens;

- (BOOL)hasMoreTokens;

- (id<MPToken>)currentToken;
- (id<MPToken>)peekNextToken;
- (void)currentTokenConsumed;

@end