I think, it is a very convenient way to use regular expressions to find a range for applying attributes to NSAttributedString. This is how I did it:
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NSMutableAttributedString *goodText = [[NSMutableAttributedString alloc] initWithString:articleText]; NSRange range = [articleText rangeOfString:@"\\[.+?\\]" options:NSRegularExpressionSearch|NSCaseInsensitiveSearch]; if (range.location != NSNotFound) { [goodText addAttribute:NSFontAttributeName value:[UIFont fontWithName:@"Georgia" size:16] range:range]; [goodText addAttribute:NSForegroundColorAttributeName value:[UIColor brownColor] range:range]; } NSString *regEx = [NSString stringWithFormat:@"%@.+?\\s", [self.article.titleText substringToIndex:0]]; range = [articleText rangeOfString:regEx options:NSRegularExpressionSearch|NSCaseInsensitiveSearch]; if (range.location != NSNotFound) { [goodText addAttribute:NSFontAttributeName value:[UIFont fontWithName:@"Georgia-Bold" size:20] range:range]; [goodText addAttribute:NSForegroundColorAttributeName value:[UIColor blueColor] range:range]; } [self.textView setAttributedText:goodText]; |
I was searching for a list of available attributes and didn’t find them in a class reference’s first page. So I decided to post here information on that.
Attributed strings support the following standard attributes for text.
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NSString *NSFontAttributeName; NSString *NSParagraphStyleAttributeName; NSString *NSForegroundColorAttributeName; NSString *NSUnderlineStyleAttributeName; NSString *NSSuperscriptAttributeName; NSString *NSBackgroundColorAttributeName; NSString *NSAttachmentAttributeName; NSString *NSLigatureAttributeName; NSString *NSBaselineOffsetAttributeName; NSString *NSKernAttributeName; NSString *NSLinkAttributeName; NSString *NSStrokeWidthAttributeName; NSString *NSStrokeColorAttributeName; NSString *NSUnderlineColorAttributeName; NSString *NSStrikethroughStyleAttributeName; NSString *NSStrikethroughColorAttributeName; NSString *NSShadowAttributeName; NSString *NSObliquenessAttributeName; NSString *NSExpansionAttributeName; NSString *NSCursorAttributeName; NSString *NSToolTipAttributeName; NSString *NSMarkedClauseSegmentAttributeName; NSString *NSWritingDirectionAttributeName; NSString *NSVerticalGlyphFormAttributeName; NSString *NSTextAlternativesAttributeName; |
NSAttributedString programming guide
A full class reference is here