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CPTestWhiteSpaceIgnoringDelegate.m
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CPTestWhiteSpaceIgnoringDelegate.m
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//
// CPTestWhiteSpaceIgnoringDelegate.m
// CoreParse
//
// Created by Tom Davie on 15/03/2011.
// Copyright 2011 In The Beginning... All rights reserved.
//
#import "CPTestWhiteSpaceIgnoringDelegate.h"
@implementation CPTestWhiteSpaceIgnoringDelegate
- (BOOL)tokeniser:(CPTokeniser *)tokeniser shouldConsumeToken:(CPToken *)token
{
return YES;
}
- (NSArray *)tokeniser:(CPTokeniser *)tokeniser willProduceToken:(CPToken *)token
{
if ([token isWhiteSpaceToken] || [[token name] isEqualToString:@"Comment"])
{
return [NSArray array];
}
return [NSArray arrayWithObject:token];
}
- (NSUInteger)tokeniser:(CPTokeniser *)tokeniser didNotFindTokenOnInput:(NSString *)input position:(NSUInteger)position error:(NSString **)errorMessage
{
*errorMessage = @"Found something that wasn't a numeric expression";
NSRange nextSafeStuff = [input rangeOfCharacterFromSet:[NSCharacterSet characterSetWithCharactersInString:@"1234567890+*()"] options:NSLiteralSearch range:NSMakeRange(position, [input length] - position)];
return nextSafeStuff.location;
}
@end