0.1 28 February, 2000 NSAttributedString Foundation/NSAttributedString.h NSCoding attribute:attributeNameatIndex:indexeffectiveRange:aRange attribute:attributeNameatIndex:indexlongestEffectiveRange:aRangeinRange:rangeLimit attributedSubstringFromRange:aRange attributesAtIndex:indexeffectiveRange:aRange attributesAtIndex:indexlongestEffectiveRange:aRangeinRange:rangeLimit initWithAttributedString:attributedString initWithString:aString initWithString:aStringattributes:attributes isEqualToAttributedString:otherString length string