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//
// NSTikzFormatter.m
// TikZiT
//
// Created by Karl Johan Paulsson on 27/01/2013.
// Copyright (c) 2013 Aleks Kissinger. All rights reserved.
//
//
// This file is part of TikZiT.
//
// TikZiT is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// TikZiT is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with TikZiT. If not, see <http://www.gnu.org/licenses/>.
//
#import "TikzFormatter.h"
#import "TikzGraphAssembler.h"
@implementation TikzFormatter
- (NSString *)stringForObjectValue:(id)obj{
if (![obj isKindOfClass:[NSString class]]) {
return @"";
}
return [NSString stringWithString:obj];
}
- (BOOL)getObjectValue:(out id *)obj forString:(NSString *)string errorDescription:(out NSString **)error{
*obj = [NSString stringWithString:string];
BOOL r = [TikzGraphAssembler validateTikzPropertyNameOrValue:string];
if (!r && error)
*error = NSLocalizedString(@"Invalid input, couldn't parse value.", @"tikz user input error");
return r;
}
- (BOOL)isPartialStringValid:(NSString **)partialStringPtr proposedSelectedRange:(NSRangePointer)proposedSelRangePtr originalString:(NSString *)origString originalSelectedRange:(NSRange)origSelRange errorDescription:(NSString **)error{
NSRange addedRange;
NSString *addedString;
addedRange = NSMakeRange(origSelRange.location, proposedSelRangePtr->location - origSelRange.location);
addedString = [*partialStringPtr substringWithRange: addedRange];
if([addedString isEqualToString:@"{"]){
NSString *s = [[NSString stringWithString:*partialStringPtr] stringByAppendingString:@"}"];
*partialStringPtr = s;
return NO;
}
if([addedString isEqualToString:@"}"]){
NSScanner *scanner = [NSScanner scannerWithString:*partialStringPtr];
NSCharacterSet *cs = [NSCharacterSet characterSetWithCharactersInString:@"{}"];
NSMutableString *strippedString = [NSMutableString stringWithCapacity:[*partialStringPtr length]];
while ([scanner isAtEnd] == NO) {
NSString *buffer;
if ([scanner scanCharactersFromSet:cs intoString:&buffer]) {
[strippedString appendString:buffer];
} else {
[scanner setScanLocation:([scanner scanLocation] + 1)];
}
}
[cs autorelease];
[scanner autorelease];
[strippedString autorelease];
if([strippedString length] % 2 == 1){
return NO;
}
}
return YES;
}
@end
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