//
//  MPParsedExpression.h
//  MathPad
//
//  Created by Kim Wittenburg on 14.11.14.
//  Copyright (c) 2014 Kim Wittenburg. All rights reserved.
//



@class MPParsedExpression, MPTerm;


/*!
 @const      MPMathKitErrorDomain
 @brief      Predefined error domain for errors from the MathKit framework.
 
 @discussion Errors in MathKit can occur during parsing of expressions or
 during evaluation of expressions. These two can be distinguished
 by the error code. Parsing errors have lower error codes.
 Evaluation errors (math errors) have error codes from @c 100 upwards.
 */
FOUNDATION_EXPORT NSString *const MPMathKitErrorDomain;

FOUNDATION_EXPORT NSString *const MPPathToExpressionKey;
FOUNDATION_EXPORT NSString *const MPErrorIndexKey;


@interface MPParsedExpression : NSObject

@property (nonatomic, strong) NSString *definedVariable;
@property (nonatomic, strong) MPTerm *term;

- (NSDecimalNumber *)evaluate:(NSError *__autoreleasing *)error;

@end