erpsuiteios/RedAnt ERP Mobile/common/customUI/MDHTMLLabel.m

//
//  MDHTMLLabel.m
//  MDHTMLLabel
//
//  Copyright (c) 2013 Matt Donnelly
//
//  Permission is hereby granted, free of charge, to any person obtaining a copy
//  of this software and associated documentation files (the "Software"), to deal
//  in the Software without restriction, including without limitation the rights
//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
//  copies of the Software, and to permit persons to whom the Software is
//  furnished to do so, subject to the following conditions:
//
//  The above copyright notice and this permission notice shall be included in
//  all copies or substantial portions of the Software.
//
//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
//  THE SOFTWARE.
//

#import "MDHTMLLabel.h"

#define kMDLineBreakWordWrapTextWidthScalingFactor (M_PI / M_E)

static CGFloat const MDFLOAT_MAX = 100000;

const NSTextAlignment MDTextAlignmentLeft = NSTextAlignmentLeft;
const NSTextAlignment MDTextAlignmentCenter = NSTextAlignmentCenter;
const NSTextAlignment MDTextAlignmentRight = NSTextAlignmentRight;
const NSTextAlignment MDTextAlignmentJustified = NSTextAlignmentJustified;
const NSTextAlignment MDTextAlignmentNatural = NSTextAlignmentNatural;

const NSLineBreakMode MDLineBreakByWordWrapping = NSLineBreakByWordWrapping;
const NSLineBreakMode MDLineBreakByCharWrapping = NSLineBreakByCharWrapping;
const NSLineBreakMode MDLineBreakByClipping = NSLineBreakByClipping;
const NSLineBreakMode MDLineBreakByTruncatingHead = NSLineBreakByTruncatingHead;
const NSLineBreakMode MDLineBreakByTruncatingMiddle = NSLineBreakByTruncatingMiddle;
const NSLineBreakMode MDLineBreakByTruncatingTail = NSLineBreakByTruncatingTail;

typedef NSTextAlignment MDTextAlignment;
typedef NSLineBreakMode MDLineBreakMode;

static inline CTTextAlignment CTTextAlignmentFromMDTextAlignment(MDTextAlignment alignment)
{
    switch (alignment)
    {
		case NSTextAlignmentLeft: return kCTTextAlignmentLeft;
		case NSTextAlignmentCenter: return kCTTextAlignmentCenter;
		case NSTextAlignmentRight: return kCTTextAlignmentRight;
		default: return kCTTextAlignmentNatural;
	}
}

static inline CTLineBreakMode CTLineBreakModeFromMDLineBreakMode(MDLineBreakMode lineBreakMode)
{
	switch (lineBreakMode)
    {
		case NSLineBreakByWordWrapping: return kCTLineBreakByWordWrapping;
		case NSLineBreakByCharWrapping: return kCTLineBreakByCharWrapping;
		case NSLineBreakByClipping: return kCTLineBreakByClipping;
		case NSLineBreakByTruncatingHead: return kCTLineBreakByTruncatingHead;
		case NSLineBreakByTruncatingTail: return kCTLineBreakByTruncatingTail;
		case NSLineBreakByTruncatingMiddle: return kCTLineBreakByTruncatingMiddle;
		default: return 0;
	}
}

static inline CFRange CFRangeFromNSRange(NSRange range)
{
    return CFRangeMake(range.location, range.length);
}

static inline NSArray * CGColorComponentsForHex(NSString *hexColor)
{
	hexColor = [[hexColor stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]] uppercaseString];

    NSRange range;
    range.location = 0;
    range.length = 2;

    NSString *rString = [hexColor substringWithRange:range];

    range.location = 2;
    NSString *gString = [hexColor substringWithRange:range];

    range.location = 4;
    NSString *bString = [hexColor substringWithRange:range];

    unsigned int r, g, b;
    [[NSScanner scannerWithString:rString] scanHexInt:&r];
    [[NSScanner scannerWithString:gString] scanHexInt:&g];
    [[NSScanner scannerWithString:bString] scanHexInt:&b];

	NSArray *components = @[[NSNumber numberWithFloat:((float) r / 255.0f)],
                            [NSNumber numberWithFloat:((float) g / 255.0f)],
                            [NSNumber numberWithFloat:((float) b / 255.0f)],
                            [NSNumber numberWithFloat:1.0]];

    return components;
}

static inline CGFLOAT_TYPE CGFloat_ceil(CGFLOAT_TYPE cgfloat)
{
#if defined(__LP64__) && __LP64__
    return ceil(cgfloat);
#else
    return ceilf(cgfloat);
#endif
}

static inline CGFLOAT_TYPE CGFloat_floor(CGFLOAT_TYPE cgfloat)
{
#if defined(__LP64__) && __LP64__
    return floor(cgfloat);
#else
    return floorf(cgfloat);
#endif
}

static inline NSAttributedString * NSAttributedStringByScalingFontSize(NSAttributedString *attributedString,
                                                                       CGFloat scale)
{
    NSMutableAttributedString *mutableAttributedString = [attributedString mutableCopy];
    [mutableAttributedString enumerateAttribute:(NSString *)kCTFontAttributeName inRange:NSMakeRange(0, [mutableAttributedString length])
                                        options:0
                                     usingBlock:^(id value, NSRange range, BOOL * __unused stop)
     {
         UIFont *font = (UIFont *)value;
         if (font)
         {
             NSString *fontName;
             CGFloat pointSize;

             if ([font isKindOfClass:[UIFont class]])
             {
                 fontName = font.fontName;
                 pointSize = font.pointSize;
             }
             else
             {
                 fontName = (NSString *)CFBridgingRelease(CTFontCopyName((__bridge CTFontRef)font, kCTFontPostScriptNameKey));
                 pointSize = CTFontGetSize((__bridge CTFontRef)font);
             }

             [mutableAttributedString removeAttribute:(NSString *)kCTFontAttributeName range:range];
             CTFontRef fontRef = CTFontCreateWithName((__bridge CFStringRef)fontName, CGFloat_floor(pointSize * scale), NULL);
             [mutableAttributedString addAttribute:(NSString *)kCTFontAttributeName value:(__bridge id)fontRef range:range];
             CFRelease(fontRef);
         }
     }];

    return mutableAttributedString;
}

static inline CGSize CTFramesetterSuggestFrameSizeForAttributedStringWithConstraints(CTFramesetterRef framesetter,
                                                                                     NSAttributedString *attributedString,
                                                                                     CGSize size,
                                                                                     NSUInteger numberOfLines)
{
    CFRange rangeToSize = CFRangeMake(0, (CFIndex)attributedString.length);
    CGSize constraints = CGSizeMake(size.width, MDFLOAT_MAX);

    if (numberOfLines == 1)
    {
        // If there is one line, the size that fits is the full width of the line
        constraints = CGSizeMake(MDFLOAT_MAX, MDFLOAT_MAX);
    }
    else if (numberOfLines > 0)
    {
        // If the line count of the label more than 1, limit the range to size to the number of lines that have been set
        CGMutablePathRef path = CGPathCreateMutable();
        CGPathAddRect(path, NULL, CGRectMake(0.0f, 0.0f, constraints.width, MDFLOAT_MAX));
        CTFrameRef frame = CTFramesetterCreateFrame(framesetter, CFRangeMake(0, 0), path, NULL);
        CFArrayRef lines = CTFrameGetLines(frame);

        if (CFArrayGetCount(lines) > 0)
        {
            NSInteger lastVisibleLineIndex = MIN((CFIndex)numberOfLines, CFArrayGetCount(lines)) - 1;
            CTLineRef lastVisibleLine = CFArrayGetValueAtIndex(lines, lastVisibleLineIndex);

            CFRange rangeToLayout = CTLineGetStringRange(lastVisibleLine);
            rangeToSize = CFRangeMake(0, rangeToLayout.location + rangeToLayout.length);
        }

        CFRelease(frame);
        CFRelease(path);
    }

    CGSize suggestedSize = CTFramesetterSuggestFrameSizeWithConstraints(framesetter, rangeToSize, NULL, constraints, NULL);

    return CGSizeMake(CGFloat_ceil(suggestedSize.width), CGFloat_ceil(suggestedSize.height));
}

#pragma mark - MDHTMLComponent

@interface MDHTMLComponent : NSObject

@property (nonatomic, assign) NSInteger componentIndex;
@property (nonatomic, copy) NSString *text;
@property (nonatomic, copy) NSString *htmlTag;

@property (nonatomic) NSMutableDictionary *attributes;

@property (nonatomic, assign) NSInteger position;

- (id)initWithString:(NSString *)string
             htmlTag:(NSString *)htmlTag
          attributes:(NSMutableDictionary *)attributes;

- (id)initWithTag:(NSString *)htmlTag
         position:(NSInteger)position
       attributes:(NSMutableDictionary *)attributes;

- (NSRange)range;

@end

@implementation MDHTMLComponent

- (id)initWithString:(NSString *)string
             htmlTag:(NSString *)htmlTag
          attributes:(NSMutableDictionary *)attributes
{
    self = [super init];

	if (self)
    {
		self.text = string;
        self.htmlTag = htmlTag;
		self.attributes = attributes;
	}

	return self;
}

- (id)initWithTag:(NSString *)htmlTag
         position:(NSInteger)position
       attributes:(NSMutableDictionary *)attributes
{
    self = [super init];

    if (self)
    {
        self.htmlTag = htmlTag;
		self.position = position;
		self.attributes = attributes;
    }

    return self;
}

- (NSRange)range
{
    return NSMakeRange(self.position, self.text.length);
}

- (NSString *)description
{
	NSMutableString *desc = [NSMutableString string];
	[desc appendFormat:@"Text: %@", self.text];
	[desc appendFormat:@"\nPosition: %li", (long)_position];

    if (self.htmlTag)
    {
        [desc appendFormat:@"\nHTML Tag: %@", self.htmlTag];
    }

    if (self.attributes)
    {
        [desc appendFormat:@"\nAttributes: %@", self.attributes];
    }

	return desc;
}

@end

#pragma mark - MDHTMLLabel

@interface MDHTMLLabel ()

@property (nonatomic, copy) NSString *plainText;

@property (nonatomic, copy) NSAttributedString *inactiveAttributedText;

@property (nonatomic, assign) BOOL needsFramesetter;

@property (nonatomic, strong) NSDataDetector *dataDetector;
@property (nonatomic, strong) NSMutableArray *links;
@property (nonatomic, strong) NSTextCheckingResult *activeLink;

@property (nonatomic, strong) NSTimer *holdGestureTimer;

@property (nonatomic, strong) NSMutableArray *styleComponents;
@property (nonatomic, strong) NSMutableArray *highlightedStyleComponents;

- (NSString *)detectURLsInText:(NSString *)text;
- (void)extractStyleFromText:(NSString *)text;

- (void)setNeedsFramesetter;

- (NSAttributedString *)applyStylesToString:(NSString *)string;

- (void)applyItalicStyleToText:(CFMutableAttributedStringRef)text
                         range:(NSRange)range;

- (void)applyBoldStyleToText:(CFMutableAttributedStringRef)text
                       range:(NSRange)range;

- (void)applyBoldItalicStyleToText:(CFMutableAttributedStringRef)text
                             range:(NSRange)range;

- (void)applyColor:(id)value
            toText:(CFMutableAttributedStringRef)text
             range:(NSRange)range;

- (void)applyUnderlineColor:(NSString *)value
                     toText:(CFMutableAttributedStringRef)text
                      range:(NSRange)range;

- (void)applyFontAttributes:(NSDictionary *)attributes
                     toText:(CFMutableAttributedStringRef)text
                      range:(NSRange)range;

- (void)applyParagraphStyleToText:(CFMutableAttributedStringRef)text
                       attributes:(NSMutableDictionary *)attributes
                            range:(NSRange)range;

@end

@implementation MDHTMLLabel
{
@private
    NSAttributedString *_htmlAttributedText;
    BOOL _needsFramesetter;
    CTFramesetterRef _framesetter;
    CTFramesetterRef _highlightFramesetter;
}

#pragma mark - Initialization

- (id)init
{
    self = [super init];

    if (self)
	{
		[self commonInit];
    }

    return self;
}

- (id)initWithFrame:(CGRect)frame
{
    self = [super initWithFrame:frame];

    if (self)
	{
		[self commonInit];
    }

    return self;
}

- (void)commonInit
{
    self.userInteractionEnabled = YES;
    self.multipleTouchEnabled = NO;

    self.textInsets = UIEdgeInsetsZero;

    self.links = [NSMutableArray array];
    self.minimumPressDuration = 0.5;
	
    self.autoDetectUrls = YES;
	
    self.linkAttributes = [NSDictionary dictionary];
    self.activeLinkAttributes = [NSDictionary dictionary];
    self.inactiveLinkAttributes = [NSDictionary dictionary];
}

- (void)dealloc
{
    if (_framesetter)
    {
        CFRelease(_framesetter);
    }
    if (_highlightFramesetter)
    {
        CFRelease(_highlightFramesetter);
    }
}

#pragma mark - Accessors

- (void)setText:(NSString *)text
{
    self.htmlText = nil;
    [super setText:text];
}

- (void)setAttributedText:(NSAttributedString *)attributedText
{
    self.htmlText = nil;
    [super setAttributedText:attributedText];
}

- (void)setHtmlText:(NSString *)htmlText
{
    
//    if(![[htmlText class] isKindOfClass:[NSString class]])
//        htmlText=nil;
    if ([_htmlText isEqualToString:htmlText])
    {
        return;
    }

    _htmlText = [htmlText copy];
    _htmlAttributedText = nil;

    if (_htmlText)
    {
        htmlText = [_htmlText stringByReplacingOccurrencesOfString:@"<br>" withString:@"\n"];
		
        if (self.autoDetectUrls)
        {
            htmlText = [self detectURLsInText:_htmlText];
        }
		
        [self extractStyleFromText:_htmlText];
    }
    else
    {
        self.styleComponents = nil;
        self.plainText = nil;
        self.links = [NSMutableArray array];
    }

    [self setNeedsFramesetter];
    [self setNeedsDisplay];
    [self invalidateIntrinsicContentSize];
}

- (NSAttributedString *)htmlAttributedText
{
    if (!_htmlAttributedText)
    {
        self.htmlAttributedText = [self applyStylesToString:_plainText];
    }

    return _htmlAttributedText;
}

- (void)setHtmlAttributedText:(NSAttributedString *)htmlAttributedText
{
    if ([_htmlAttributedText isEqualToAttributedString:htmlAttributedText])
    {
        return;
    }

    _htmlAttributedText = [htmlAttributedText copy];

    [self setNeedsFramesetter];
    [self setNeedsDisplay];
}

- (void)setNeedsFramesetter
{
    _needsFramesetter = YES;
}

- (CTFramesetterRef)framesetter
{
    if (_needsFramesetter)
    {
        @synchronized(self)
        {
            CTFramesetterRef framesetter = CTFramesetterCreateWithAttributedString((__bridge CFAttributedStringRef)self.htmlAttributedText);
            self.framesetter = framesetter;
            _needsFramesetter = NO;

            if (framesetter)
            {
                CFRelease(framesetter);
            }
        }
    }

    return _framesetter;
}

- (CTFramesetterRef)highlightFramesetter
{
    return _highlightFramesetter;
}

- (void)setHighlightFramesetter:(CTFramesetterRef)highlightFramesetter
{
    if (highlightFramesetter)
    {
        CFRetain(highlightFramesetter);
    }

    if (_highlightFramesetter)
    {
        CFRelease(_highlightFramesetter);
    }

    _highlightFramesetter = highlightFramesetter;
}

- (void)setFramesetter:(CTFramesetterRef)framesetter
{
    if (framesetter)
    {
        CFRetain(framesetter);
    }

    if (_framesetter)
    {
        CFRelease(_framesetter);
    }

    _framesetter = framesetter;
}

- (void)setActiveLink:(NSTextCheckingResult *)activeLink
{
    _activeLink = activeLink;

    if (_activeLink && self.activeLinkAttributes.count > 0)
    {
        if (!self.inactiveAttributedText)
        {
            self.inactiveAttributedText = [self.htmlAttributedText copy];
        }

        NSMutableAttributedString *mutableAttributedString = [self.inactiveAttributedText mutableCopy];
        if (NSLocationInRange(NSMaxRange(_activeLink.range), NSMakeRange(0, self.inactiveAttributedText.length + 1)))
        {
            NSMutableDictionary *mutableActiveLinkAttributes = [self.activeLinkAttributes mutableCopy];
            if (!mutableActiveLinkAttributes[(NSString *)kCTForegroundColorAttributeName] && !mutableActiveLinkAttributes[NSForegroundColorAttributeName])
            {
                mutableActiveLinkAttributes[(NSString *)kCTForegroundColorAttributeName] = [UIColor redColor];
            }

            [self applyFontAttributes:mutableActiveLinkAttributes
                               toText:(__bridge CFMutableAttributedStringRef)mutableAttributedString
                                range:_activeLink.range];
        }

        self.htmlAttributedText = mutableAttributedString;
        [self setNeedsDisplay];
    }
    else if (self.inactiveAttributedText)
    {
        self.htmlAttributedText = self.inactiveAttributedText;
        self.inactiveAttributedText = nil;

        [self setNeedsDisplay];
    }
}

#pragma mark - Drawing

- (void)drawTextInRect:(CGRect)rect
{
    if (!self.htmlText)
    {
        return [super drawTextInRect:rect];
    }

    NSAttributedString *originalAttributedText = nil;

    // Adjust the font size to fit width, if necessarry
    if (self.adjustsFontSizeToFitWidth && self.numberOfLines > 0)
    {
        // Use infinite width to find the max width, which will be compared to availableWidth if needed.
        CGSize maxSize = (self.numberOfLines > 1) ? CGSizeMake(MDFLOAT_MAX, MDFLOAT_MAX) : CGSizeZero;

        CGFloat textWidth = [self sizeThatFits:maxSize].width;
        CGFloat availableWidth = self.frame.size.width * self.numberOfLines;
        if (self.numberOfLines > 1 && self.lineBreakMode == MDLineBreakByWordWrapping)
        {
            textWidth *= kMDLineBreakWordWrapTextWidthScalingFactor;
        }

        if (textWidth > availableWidth && textWidth > 0.0f)
        {
            originalAttributedText = [self.htmlAttributedText copy];
            self.htmlAttributedText = NSAttributedStringByScalingFontSize(self.htmlAttributedText, availableWidth / textWidth);
        }
    }

    CGContextRef c = UIGraphicsGetCurrentContext();
    CGContextSaveGState(c);
    {
        CGContextSetTextMatrix(c, CGAffineTransformIdentity);

        // Inverts the CTM to match iOS coordinates (otherwise text draws upside-down; Mac OS's system is different)
        CGContextTranslateCTM(c, 0.0f, rect.size.height);
        CGContextScaleCTM(c, 1.0f, -1.0f);

        CFRange textRange = CFRangeMake(0, (CFIndex)self.htmlAttributedText.length);

        // First, get the text rect (which takes vertical centering into account)
        CGRect textRect = [self textRectForBounds:rect limitedToNumberOfLines:self.numberOfLines];

        // CoreText draws it's text aligned to the bottom, so we move the CTM here to take our vertical offsets into account
        CGContextTranslateCTM(c, rect.origin.x, rect.size.height - textRect.origin.y - textRect.size.height);

        // Second, trace the shadow before the actual text, if we have one
        if (self.shadowColor && !self.highlighted)
        {
            CGContextSetShadowWithColor(c, self.shadowOffset, self.shadowRadius, self.shadowColor.CGColor);
        }
        else if (self.highlightedShadowColor)
        {
            CGContextSetShadowWithColor(c, self.highlightedShadowOffset, self.highlightedShadowRadius, self.highlightedShadowColor.CGColor);
        }

        // Finally, draw the text or highlighted text itself (on top of the shadow, if there is one)
        if (self.highlighted && self.highlightedTextColor)
        {
            NSMutableAttributedString *highlightAttributedString = [self.htmlAttributedText mutableCopy];

            [highlightAttributedString addAttribute:(__bridge NSString *)kCTForegroundColorAttributeName
                                              value:(id)self.highlightedTextColor.CGColor
                                              range:NSMakeRange(0, highlightAttributedString.length)];

            if (!self.highlightFramesetter)
            {
                CTFramesetterRef highlightFramesetter = CTFramesetterCreateWithAttributedString((__bridge CFAttributedStringRef)highlightAttributedString);
                [self setHighlightFramesetter:highlightFramesetter];
                CFRelease(highlightFramesetter);
            }

            [self drawFramesetter:self.highlightFramesetter attributedString:highlightAttributedString textRange:textRange inRect:textRect context:c];
        }
        else
        {
            [self drawFramesetter:self.framesetter attributedString:self.htmlAttributedText textRange:textRange inRect:textRect context:c];
        }

        // If we adjusted the font size, set it back to its original size
        if (originalAttributedText)
        {
            // Use ivar directly to avoid clearing out framesetter and renderedAttributedText
            _htmlAttributedText = originalAttributedText;
        }
    }
    CGContextRestoreGState(c);
}

- (void)drawFramesetter:(CTFramesetterRef)framesetter
       attributedString:(NSAttributedString *)attributedString
              textRange:(CFRange)textRange
                 inRect:(CGRect)rect
                context:(CGContextRef)c
{
    CGMutablePathRef path = CGPathCreateMutable();
    CGPathAddRect(path, NULL, rect);
    CTFrameRef frame = CTFramesetterCreateFrame(framesetter, textRange, path, NULL);

    CFArrayRef lines = CTFrameGetLines(frame);
    NSInteger numberOfLines = self.numberOfLines > 0 ? MIN(self.numberOfLines, CFArrayGetCount(lines)) : CFArrayGetCount(lines);
    BOOL truncateLastLine = (self.lineBreakMode == MDLineBreakByTruncatingHead
                             || self.lineBreakMode == MDLineBreakByTruncatingMiddle
                             || self.lineBreakMode == MDLineBreakByTruncatingTail);

    CGPoint lineOrigins[numberOfLines];
    CTFrameGetLineOrigins(frame, CFRangeMake(0, numberOfLines), lineOrigins);

    for (CFIndex lineIndex = 0; lineIndex < numberOfLines; lineIndex++)
    {
        CGPoint lineOrigin = lineOrigins[lineIndex];
        CGContextSetTextPosition(c, lineOrigin.x, lineOrigin.y);
        CTLineRef line = CFArrayGetValueAtIndex(lines, lineIndex);

        if (lineIndex == numberOfLines - 1 && truncateLastLine)
        {
            // Check if the range of text in the last line reaches the end of the full attributed string
            CFRange lastLineRange = CTLineGetStringRange(line);

            if (!(lastLineRange.length == 0 && lastLineRange.location == 0) && lastLineRange.location + lastLineRange.length < textRange.location + textRange.length)
            {
                // Get correct truncationType and attribute position
                CTLineTruncationType truncationType;
                CFIndex truncationAttributePosition = lastLineRange.location;
                NSLineBreakMode lineBreakMode = self.lineBreakMode;

                // Multiple lines, only use NSLineBreakByTruncatingTail
                if (numberOfLines != 1)
                {
                    lineBreakMode = NSLineBreakByTruncatingTail;
                }

                switch (lineBreakMode)
                {
                    case NSLineBreakByTruncatingHead:
                        truncationType = kCTLineTruncationStart;
                        break;
                    case NSLineBreakByTruncatingMiddle:
                        truncationType = kCTLineTruncationMiddle;
                        truncationAttributePosition += (lastLineRange.length / 2);
                        break;
                    case NSLineBreakByTruncatingTail:
                    default:
                        truncationType = kCTLineTruncationEnd;
                        truncationAttributePosition += (lastLineRange.length - 1);
                        break;
                }

                NSString *truncationTokenString = self.truncationTokenString;
                if (!truncationTokenString)
                {
                    truncationTokenString = @"\u2026"; // Unicode Character 'HORIZONTAL ELLIPSIS' (U+2026)
                }

                NSDictionary *truncationTokenStringAttributes = self.truncationTokenStringAttributes;
                if (!truncationTokenStringAttributes)
                {
                    truncationTokenStringAttributes = [attributedString attributesAtIndex:(NSUInteger)truncationAttributePosition
                                                                           effectiveRange:NULL];
                }

                NSAttributedString *attributedTokenString = [[NSAttributedString alloc] initWithString:truncationTokenString
                                                                                            attributes:truncationTokenStringAttributes];
                CTLineRef truncationToken = CTLineCreateWithAttributedString((__bridge CFAttributedStringRef)attributedTokenString);

                // Append truncationToken to the string
                // because if string isn't too long, CT wont add the truncationToken on it's own
                // There is no change of a double truncationToken because CT only add the token if it removes characters (and the one we add will go first)
                NSMutableAttributedString *truncationString = [[attributedString attributedSubstringFromRange:NSMakeRange((NSUInteger)lastLineRange.location,
                                                                                                                          (NSUInteger)lastLineRange.length)] mutableCopy];
                if (lastLineRange.length > 0)
                {
                    // Remove any newline at the end (we don't want newline space between the text and the truncation token). There can only be one, because the second would be on the next line.
                    unichar lastCharacter = [truncationString.string characterAtIndex:(NSUInteger)(lastLineRange.length - 1)];
                    if ([[NSCharacterSet newlineCharacterSet] characterIsMember:lastCharacter])
                    {
                        [truncationString deleteCharactersInRange:NSMakeRange((NSUInteger)(lastLineRange.length - 1), 1)];
                    }
                }

                [truncationString appendAttributedString:attributedTokenString];
                CTLineRef truncationLine = CTLineCreateWithAttributedString((__bridge CFAttributedStringRef)truncationString);

                // Truncate the line in case it is too long.
                CTLineRef truncatedLine = CTLineCreateTruncatedLine(truncationLine, rect.size.width, truncationType, truncationToken);
                if (!truncatedLine)
                {
                    // If the line is not as wide as the truncationToken, truncatedLine is NULL
                    truncatedLine = CFRetain(truncationToken);
                }

                // Adjust pen offset for flush depending on text alignment
                CGFloat flushFactor = 0.0f;
                switch (self.textAlignment)
                {
                    case NSTextAlignmentCenter:
                        flushFactor = 0.5f;
                        break;
                    case NSTextAlignmentRight:
                        flushFactor = 1.0f;
                        break;
                    case NSTextAlignmentLeft:
                    default:
                        break;
                }

                CGFloat penOffset = (CGFloat)CTLineGetPenOffsetForFlush(truncatedLine, flushFactor, rect.size.width);
                CGContextSetTextPosition(c, penOffset, lineOrigin.y);

                CTLineDraw(truncatedLine, c);

                CFRelease(truncatedLine);
                CFRelease(truncationLine);
                CFRelease(truncationToken);
            }
            else
            {
                CTLineDraw(line, c);
            }
        }
        else
        {
            CTLineDraw(line, c);
        }
    }

    CFRelease(frame);
    CFRelease(path);
}

#pragma mark - Styling methods

- (NSAttributedString *)applyStylesToString:(NSString *)string
{
    if (!string)
    {
        return nil;
    }

    // Create attributed string ref for text
    CFMutableAttributedStringRef attrString = CFAttributedStringCreateMutable(kCFAllocatorDefault, 0);
    CFAttributedStringReplaceString (attrString, CFRangeMake(0, 0), (__bridge CFStringRef)string);

    // Apply text color to text
    CFMutableDictionaryRef styleDict = CFDictionaryCreateMutable(0, 0, 0, 0);
    CFDictionaryAddValue(styleDict, kCTForegroundColorAttributeName, self.textColor.CGColor);
    CFAttributedStringSetAttributes(attrString, CFRangeMake( 0, CFAttributedStringGetLength(attrString)), styleDict, 0);

    CFRelease(styleDict);

    // Apply default paragraph text style
    [self applyParagraphStyleToText:attrString attributes:nil range:NSMakeRange(0, string.length)];

    // Apply font to text
    CTFontRef font = CTFontCreateWithName ((__bridge CFStringRef)self.font.fontName, self.font.pointSize, NULL);
    CFAttributedStringSetAttribute(attrString, CFRangeMake(0, CFAttributedStringGetLength(attrString)), kCTFontAttributeName, font);

    CFRelease(font);

    NSMutableArray *styleComponents = nil;

    if (self.highlighted)
    {
        styleComponents = self.highlightedStyleComponents;
    }
    else
    {
        styleComponents = self.styleComponents;
    }

    // Loop through each component and apply its style to the text
    for (MDHTMLComponent *component in styleComponents)
    {
        NSInteger index = [styleComponents indexOfObject:component];
        component.componentIndex = index;

        if (component.range.location == NSNotFound || component.range.length == 0) {
            // ignore bad tags, like <b><b>
            continue;
        }

        if ([component.htmlTag caseInsensitiveCompare:@"i"] == NSOrderedSame)
        {
            [self applyItalicStyleToText:attrString
                                   range:component.range];
        }
        else if ([component.htmlTag caseInsensitiveCompare:@"b"] == NSOrderedSame
                 || [component.htmlTag caseInsensitiveCompare:@"strong"] == NSOrderedSame)
        {
            [self applyBoldStyleToText:attrString
                                 range:component.range];
        }
        else if ([component.htmlTag caseInsensitiveCompare:@"bi"] == NSOrderedSame)
        {
            [self applyBoldItalicStyleToText:attrString
                                       range:component.range];
        }
        else if ([component.htmlTag caseInsensitiveCompare:@"a"] == NSOrderedSame)
        {
            NSMutableDictionary *mutableLinkAttributes = [self.linkAttributes mutableCopy];
            if (!self.linkAttributes[(NSString *)kCTForegroundColorAttributeName] && !mutableLinkAttributes[NSForegroundColorAttributeName])
            {
                if ([self respondsToSelector:@selector(tintColor)])
                {
                    mutableLinkAttributes[(NSString *)kCTForegroundColorAttributeName] = self.tintColor;
                }
                else
                {
                    mutableLinkAttributes[(NSString *)kCTForegroundColorAttributeName] = [UIColor blueColor];
                }
            }

            [self applyFontAttributes:mutableLinkAttributes
                               toText:attrString
                                range:component.range];
        }
        else if ([component.htmlTag caseInsensitiveCompare:@"u"] == NSOrderedSame || [component.htmlTag caseInsensitiveCompare:@"uu"] == NSOrderedSame)
        {
            if ([component.htmlTag caseInsensitiveCompare:@"u"] == NSOrderedSame)
            {
                CFAttributedStringSetAttribute(attrString, CFRangeFromNSRange(component.range),
                                               kCTUnderlineStyleAttributeName,  (__bridge CFNumberRef)[NSNumber numberWithInt:kCTUnderlineStyleSingle]);
            }
            else if ([component.htmlTag caseInsensitiveCompare:@"uu"] == NSOrderedSame)
            {
                CFAttributedStringSetAttribute(attrString, CFRangeFromNSRange(component.range),
                                               kCTUnderlineStyleAttributeName,  (__bridge CFNumberRef)[NSNumber numberWithInt:kCTUnderlineStyleDouble]);
            }

            if ([component.attributes objectForKey:(NSString *)kCTForegroundColorAttributeName])
            {
                id value = [component.attributes objectForKey:(NSString *)kCTForegroundColorAttributeName];
                [self applyUnderlineColor:value
                                   toText:attrString
                                    range:component.range];
            }
        }
        else if ([component.htmlTag caseInsensitiveCompare:@"font"] == NSOrderedSame)
        {
            [self applyFontAttributes:component.attributes
                               toText:attrString
                                range:component.range];
        }
        else if ([component.htmlTag caseInsensitiveCompare:@"p"] == NSOrderedSame)
        {
            [self applyParagraphStyleToText:attrString
                                 attributes:component.attributes
                                      range:component.range];
        }
        else if ([component.htmlTag caseInsensitiveCompare:@"center"] == NSOrderedSame)
        {
            [self applyCenterStyleToText:attrString
                              attributes:component.attributes
                                   range:component.range];
        }
    }

	NSAttributedString *styledString = [[NSAttributedString alloc] initWithAttributedString:(__bridge NSAttributedString *)attrString];
	CFRelease(attrString);
    return styledString;
}

- (void)applyParagraphStyleToText:(CFMutableAttributedStringRef)text
                       attributes:(NSMutableDictionary *)attributes
                            range:(NSRange)range
{
	CFMutableDictionaryRef styleDict = ( CFDictionaryCreateMutable( (0), 0, (0), (0) ) );

	CGFloat lineSpacing = self.leading;
    CGFloat lineSpacingAdjustment = CGFloat_ceil(self.font.lineHeight - self.font.ascender + self.font.descender);
    CGFloat lineHeightMultiple = self.lineHeightMultiple;
    CGFloat topMargin = self.textInsets.top;
    CGFloat bottomMargin = self.textInsets.bottom;
    CGFloat leftMargin = self.textInsets.left;
    CGFloat rightMargin = -self.textInsets.right;
    CGFloat firstLineIndent = self.firstLineIndent + leftMargin;

    CTLineBreakMode lineBreakMode = kCTLineBreakByWordWrapping;
    if (self.numberOfLines == 1)
    {
        lineBreakMode = CTLineBreakModeFromMDLineBreakMode(self.lineBreakMode);
    }

    CTTextAlignment textAlignment = CTTextAlignmentFromMDTextAlignment(self.textAlignment);

	for (NSUInteger i = 0; i < attributes.allKeys.count; i++)
	{
		NSString *key = attributes.allKeys[i];
		id value = attributes[key];

		if ([key caseInsensitiveCompare:@"align"] == NSOrderedSame)
		{
			if ([value caseInsensitiveCompare:@"left"] == NSOrderedSame)
			{
				textAlignment = kCTTextAlignmentLeft;
			}
			else if ([value caseInsensitiveCompare:@"right"] == NSOrderedSame)
			{
				textAlignment = kCTTextAlignmentRight;
			}
			else if ([value caseInsensitiveCompare:@"justify"] == NSOrderedSame)
			{
				textAlignment = kCTTextAlignmentJustified;
			}
			else if ([value caseInsensitiveCompare:@"center"] == NSOrderedSame)
			{
				textAlignment = kCTTextAlignmentCenter;
			}
		}
		else if ([key caseInsensitiveCompare:@"indent"] == NSOrderedSame)
		{
			firstLineIndent = [value floatValue];
		}
		else if ([key caseInsensitiveCompare:@"linebreakmode"] == NSOrderedSame)
		{
			if ([value caseInsensitiveCompare:@"wordwrap"] == NSOrderedSame)
			{
				lineBreakMode = kCTLineBreakByWordWrapping;
			}
			else if ([value caseInsensitiveCompare:@"charwrap"] == NSOrderedSame)
			{
				lineBreakMode = kCTLineBreakByCharWrapping;
			}
			else if ([value caseInsensitiveCompare:@"clipping"] == NSOrderedSame)
			{
				lineBreakMode = kCTLineBreakByClipping;
			}
			else if ([value caseInsensitiveCompare:@"truncatinghead"] == NSOrderedSame)
			{
				lineBreakMode = kCTLineBreakByTruncatingHead;
			}
			else if ([value caseInsensitiveCompare:@"truncatingtail"] == NSOrderedSame)
			{
				lineBreakMode = kCTLineBreakByTruncatingTail;
			}
			else if ([value caseInsensitiveCompare:@"truncatingmiddle"] == NSOrderedSame)
			{
				lineBreakMode = kCTLineBreakByTruncatingMiddle;
			}
		}
	}

	CTParagraphStyleSetting settings[] =
    {
        { kCTParagraphStyleSpecifierAlignment, sizeof(CTTextAlignment), &textAlignment },
		{ kCTParagraphStyleSpecifierLineBreakMode, sizeof(CTLineBreakMode), &lineBreakMode  },
//		{ kCTParagraphStyleSpecifierLineSpacing, sizeof(CGFloat), &lineSpacing },
        
        { kCTParagraphStyleSpecifierMaximumLineSpacing, sizeof(CGFloat), &lineSpacing },
        { kCTParagraphStyleSpecifierMinimumLineSpacing, sizeof(CGFloat), &lineSpacing },
        { kCTParagraphStyleSpecifierLineSpacingAdjustment, sizeof(CGFloat), &lineSpacingAdjustment },
        { kCTParagraphStyleSpecifierLineHeightMultiple, sizeof(CGFloat), &lineHeightMultiple },
        { kCTParagraphStyleSpecifierParagraphSpacingBefore, sizeof(CGFloat), &topMargin },
        { kCTParagraphStyleSpecifierParagraphSpacing, sizeof(CGFloat), &bottomMargin },
		{ kCTParagraphStyleSpecifierFirstLineHeadIndent, sizeof(CGFloat), &firstLineIndent },
		{ kCTParagraphStyleSpecifierHeadIndent, sizeof(CGFloat), &leftMargin },
		{ kCTParagraphStyleSpecifierTailIndent, sizeof(CGFloat), &rightMargin },
	};

	CTParagraphStyleRef paragraphRef = CTParagraphStyleCreate(settings, sizeof(settings) / sizeof(CTParagraphStyleSetting));
	CFDictionaryAddValue(styleDict, kCTParagraphStyleAttributeName, paragraphRef);

	CFAttributedStringSetAttributes(text, CFRangeFromNSRange(range), styleDict, 0);

	CFRelease(paragraphRef);
    CFRelease(styleDict);
}

- (void)applyCenterStyleToText:(CFMutableAttributedStringRef)text
                    attributes:(NSMutableDictionary *)attributes
                         range:(NSRange)range
{
	CFMutableDictionaryRef styleDict = CFDictionaryCreateMutable(0, 0, 0, 0) ;

	CGFloat lineSpacing = self.leading;
    CGFloat lineSpacingAdjustment = CGFloat_ceil(self.font.lineHeight - self.font.ascender + self.font.descender);
    CGFloat lineHeightMultiple = self.lineHeightMultiple;
    CGFloat topMargin = self.textInsets.top;
    CGFloat bottomMargin = self.textInsets.bottom;
    CGFloat leftMargin = self.textInsets.left;
    CGFloat rightMargin = -self.textInsets.right;
    CGFloat firstLineIndent = self.firstLineIndent + leftMargin;

    CTLineBreakMode lineBreakMode = kCTLineBreakByWordWrapping;
    if (self.numberOfLines == 1)
    {
        lineBreakMode = CTLineBreakModeFromMDLineBreakMode(self.lineBreakMode);
    }

    CTTextAlignment textAlignment = kCTTextAlignmentCenter;

	CTParagraphStyleSetting settings[] =
    {
        { kCTParagraphStyleSpecifierAlignment, sizeof(CTTextAlignment), &textAlignment },
		{ kCTParagraphStyleSpecifierLineBreakMode, sizeof(CTLineBreakMode), &lineBreakMode  },
//		{ kCTParagraphStyleSpecifierLineSpacing, sizeof(CGFloat), &lineSpacing },
        { kCTParagraphStyleSpecifierMaximumLineSpacing, sizeof(CGFloat), &lineSpacing },
        { kCTParagraphStyleSpecifierMinimumLineSpacing, sizeof(CGFloat), &lineSpacing },
        { kCTParagraphStyleSpecifierLineSpacingAdjustment, sizeof(CGFloat), &lineSpacingAdjustment },
        { kCTParagraphStyleSpecifierLineHeightMultiple, sizeof(CGFloat), &lineHeightMultiple },
        { kCTParagraphStyleSpecifierParagraphSpacingBefore, sizeof(CGFloat), &topMargin },
        { kCTParagraphStyleSpecifierParagraphSpacing, sizeof(CGFloat), &bottomMargin },
		{ kCTParagraphStyleSpecifierFirstLineHeadIndent, sizeof(CGFloat), &firstLineIndent },
		{ kCTParagraphStyleSpecifierHeadIndent, sizeof(CGFloat), &leftMargin },
		{ kCTParagraphStyleSpecifierTailIndent, sizeof(CGFloat), &rightMargin },
	};

	CTParagraphStyleRef paragraphRef = CTParagraphStyleCreate(settings, sizeof(settings) / sizeof(CTParagraphStyleSetting));
	CFDictionaryAddValue(styleDict, kCTParagraphStyleAttributeName, paragraphRef);

	CFAttributedStringSetAttributes( text, CFRangeFromNSRange(range), styleDict, 0 );

	CFRelease(paragraphRef);
    CFRelease(styleDict);
}

- (void)applyItalicStyleToText:(CFMutableAttributedStringRef)text
                         range:(NSRange)range
{
    CFTypeRef actualFontRef = CFAttributedStringGetAttribute(text, range.location, kCTFontAttributeName, NULL);
    CTFontRef italicFontRef = CTFontCreateCopyWithSymbolicTraits(actualFontRef, 0.0, NULL, kCTFontItalicTrait, kCTFontItalicTrait);

    BOOL forceCustomFont = self.customItalicFontName;
    if (!italicFontRef || forceCustomFont)
    {
        UIFont *font = [self italicFontOfSize:CTFontGetSize(actualFontRef)];
        italicFontRef = CTFontCreateWithName ((__bridge CFStringRef)[font fontName], [font pointSize], NULL);
    }

    CFAttributedStringSetAttribute(text, CFRangeFromNSRange(range), kCTFontAttributeName, italicFontRef);

    CFRelease(italicFontRef);
}

- (void)applyFontAttributes:(NSDictionary *)attributes
                     toText:(CFMutableAttributedStringRef)text
                      range:(NSRange)range
{
	for (NSString *key in attributes.allKeys)
	{
		id value = attributes[key];

        if ([value isKindOfClass:[NSString class]])
        {
            value = [value stringByReplacingOccurrencesOfString:@"'" withString:@""];
        }

        if ([key caseInsensitiveCompare:@"face"] == NSOrderedSame)
        {
            CGFloat size = self.font.pointSize;

            if (attributes[@"size"])
            {
                size = [attributes[@"size"] floatValue];
            }

            UIFont *font = [UIFont fontWithName:value size:size];

            if (font)
            {
                [attributes setValue:font forKey:(NSString *)kCTFontNameAttribute];
            }
        }
        else if ([key caseInsensitiveCompare:@"size"] == NSOrderedSame && !attributes[@"face"] && !attributes[@"FACE"])
        {
            CGFloat size = [attributes[@"size"] floatValue];
            UIFont *font = [UIFont systemFontOfSize:size];
            [attributes setValue:font forKey:(NSString *)kCTFontNameAttribute];
        }
        else if ([key isEqualToString:(NSString *)kCTParagraphStyleAttributeName])
        {
            CFAttributedStringSetAttribute(text, CFRangeFromNSRange(range),
                                           kCTParagraphStyleAttributeName, (CTParagraphStyleRef)value);
        }
        else if ([key isEqualToString:NSParagraphStyleAttributeName])
        {
            NSMutableAttributedString *mutableText = [value mutableCopy];
            [mutableText addAttribute:NSParagraphStyleAttributeName value:(NSParagraphStyle *)value range:range];
        }
		else if ([key isEqualToString:(NSString *)kCTForegroundColorAttributeName]
                 || [key isEqualToString:NSForegroundColorAttributeName]
                 || [key caseInsensitiveCompare:@"color"] == NSOrderedSame)
		{
			[self applyColor:value toText:text range:range];
		}
		else if ([key isEqualToString:(NSString *)kCTStrokeWidthAttributeName]
                 || [key isEqualToString:NSStrokeWidthAttributeName])
		{
			CFAttributedStringSetAttribute(text,
                                           CFRangeFromNSRange(range),
                                           kCTStrokeWidthAttributeName,
                                           (__bridge CFTypeRef)([attributes objectForKey:(NSString *)kCTStrokeWidthAttributeName]));
		}
        else if ([key isEqualToString:(NSString *)kCTStrokeColorAttributeName]
                 || [key isEqualToString:NSStrokeColorAttributeName])
		{
			[self applyStrokeColor:value toText:text range:range];
		}
		else if ([key isEqualToString:(NSString *)kCTKernAttributeName]
                 || [key isEqualToString:NSKernAttributeName])
		{
			CFAttributedStringSetAttribute(text,
                                           CFRangeFromNSRange(range),
                                           kCTKernAttributeName,
                                           (__bridge CFTypeRef)([attributes objectForKey:(NSString *)kCTKernAttributeName]));
		}
		else if ([key isEqualToString:(NSString *)kCTUnderlineStyleAttributeName]
                 || [key isEqualToString:NSUnderlineStyleAttributeName])
		{
            CFAttributedStringSetAttribute(text, CFRangeFromNSRange(range), kCTUnderlineStyleAttributeName,  (__bridge CFNumberRef)value);
		}
	}

	UIFont *font = [attributes objectForKey:(NSString *)kCTFontNameAttribute];

	if (font)
	{
		CTFontRef customFont = CTFontCreateWithName ((__bridge CFStringRef)font.fontName, font.pointSize, NULL);
		CFAttributedStringSetAttribute(text, CFRangeFromNSRange(range), kCTFontAttributeName, customFont);
		CFRelease(customFont);
        return;
	}

    font = [attributes objectForKey:NSFontAttributeName];

    if (font)
	{
		CTFontRef customFont = CTFontCreateWithName ((__bridge CFStringRef)font.fontName, font.pointSize, NULL);
		CFAttributedStringSetAttribute(text, CFRangeFromNSRange(range), kCTFontAttributeName, customFont);
		CFRelease(customFont);
	}
    else
    {
        CTFontRef customFont = CTFontCreateWithName ((__bridge CFStringRef)self.font.fontName, self.font.pointSize, NULL);
		CFAttributedStringSetAttribute(text, CFRangeFromNSRange(range), kCTFontAttributeName, customFont);
		CFRelease(customFont);
    }
}

- (void)applyBoldStyleToText:(CFMutableAttributedStringRef)text
                       range:(NSRange)range
{
    CFTypeRef actualFontRef = CFAttributedStringGetAttribute(text, range.location, kCTFontAttributeName, NULL);
    CTFontRef boldFontRef = CTFontCreateCopyWithSymbolicTraits(actualFontRef, 0.0, NULL, kCTFontBoldTrait, kCTFontBoldTrait);

    BOOL forceCustomFont = self.customBoldFontName;
    if (!boldFontRef || forceCustomFont)
    {
//        UIFont *font = [UIFont boldSystemFontOfSize:CTFontGetSize(actualFontRef)];
        UIFont *font = [self boldFontOfSize:CTFontGetSize(actualFontRef)];
        boldFontRef = CTFontCreateWithName((__bridge CFStringRef)font.fontName, self.font.pointSize, NULL);
    }

    CFAttributedStringSetAttribute(text, CFRangeFromNSRange(range), kCTFontAttributeName, boldFontRef);

    CFRelease(boldFontRef);
}

- (void)applyBoldItalicStyleToText:(CFMutableAttributedStringRef)text
                             range:(NSRange)range
{
    CFTypeRef actualFontRef = CFAttributedStringGetAttribute(text, range.location, kCTFontAttributeName, NULL);
    CTFontRef boldItalicFontRef = CTFontCreateCopyWithSymbolicTraits(actualFontRef, 0.0, NULL, kCTFontBoldTrait | kCTFontItalicTrait , kCTFontBoldTrait | kCTFontItalicTrait);

    BOOL forceCustomFont = self.customBoldItalicFontName;
    if (!boldItalicFontRef || forceCustomFont)
    {
//        NSString *fontName = [NSString stringWithFormat:@"%@-BoldOblique", self.font.fontName];
        UIFont *font = [self boldItalicFontOfSize:CTFontGetSize(actualFontRef)];
        boldItalicFontRef = CTFontCreateWithName((__bridge CFStringRef)font.fontName, self.font.pointSize, NULL);
    }

    if (boldItalicFontRef)
    {
        CFAttributedStringSetAttribute(text, CFRangeFromNSRange(range), kCTFontAttributeName, boldItalicFontRef);
        CFRelease(boldItalicFontRef);
    }
}

- (void)applyColor:(id)value
            toText:(CFMutableAttributedStringRef)text
             range:(NSRange)range
{
    if ([value isKindOfClass:[UIColor class]])
    {
        UIColor *color = (UIColor *)value;
        CFAttributedStringSetAttribute(text, CFRangeFromNSRange(range), kCTForegroundColorAttributeName, color.CGColor);
    }
    else if ([value isKindOfClass:[NSString class]])
    {
        if ([value rangeOfString:@"#"].location == 0)
        {
            if ([value rangeOfString:@"#"].location == 0)
            {
                value = [value stringByReplacingOccurrencesOfString:@"#" withString:@""];
            }

            CGColorSpaceRef rgbColorSpace = CGColorSpaceCreateDeviceRGB();

            NSArray *colorComponents = CGColorComponentsForHex(value);

            CGFloat components[] = {[[colorComponents objectAtIndex:0] floatValue],
                [[colorComponents objectAtIndex:1] floatValue],
                [[colorComponents objectAtIndex:2] floatValue],
                [[colorComponents objectAtIndex:3] floatValue]};

            CGColorRef color = CGColorCreate(rgbColorSpace, components);
            CFAttributedStringSetAttribute(text, CFRangeFromNSRange(range), kCTForegroundColorAttributeName, color);

            CFRelease(color);
            CGColorSpaceRelease(rgbColorSpace);
        }
    }
}

- (void)applyStrokeColor:(id)value
                  toText:(CFMutableAttributedStringRef)text
                   range:(NSRange)range
{
    if ([value isKindOfClass:[UIColor class]])
    {
        UIColor *color = (UIColor *)value;
        CFAttributedStringSetAttribute(text, CFRangeFromNSRange(range), kCTStrokeColorAttributeName, color.CGColor);
    }
    else if ([value isKindOfClass:[NSString class]])
    {
        if ([value rangeOfString:@"#"].location == 0)
        {
            value = [value stringByReplacingOccurrencesOfString:@"#" withString:@""];
        }

        CGColorSpaceRef rgbColorSpace = CGColorSpaceCreateDeviceRGB();

        NSArray *colorComponents = CGColorComponentsForHex(value);

        CGFloat components[] = {[[colorComponents objectAtIndex:0] floatValue],
            [[colorComponents objectAtIndex:1] floatValue],
            [[colorComponents objectAtIndex:2] floatValue],
            [[colorComponents objectAtIndex:3] floatValue]};

        CGColorRef color = CGColorCreate(rgbColorSpace, components);
        CFAttributedStringSetAttribute(text, CFRangeFromNSRange(range), kCTStrokeColorAttributeName, color);

        CFRelease(color);
        CGColorSpaceRelease(rgbColorSpace);
    }
}

- (void)applyUnderlineColor:(id)value
                     toText:(CFMutableAttributedStringRef)text
                      range:(NSRange)range
{
    if ([value isKindOfClass:[UIColor class]])
    {
        UIColor *color = (UIColor *)value;
        CFAttributedStringSetAttribute(text, CFRangeFromNSRange(range), kCTForegroundColorAttributeName, color.CGColor);
    }
    else if ([value isKindOfClass:[NSString class]])
    {
        value = [value stringByReplacingOccurrencesOfString:@"'" withString:@""];

        if ([value rangeOfString:@"#"].location==0)
        {
            CGColorSpaceRef rgbColorSpace = CGColorSpaceCreateDeviceRGB();
            value = [value stringByReplacingOccurrencesOfString:@"#" withString:@""];

            NSArray *colorComponents = CGColorComponentsForHex(value);

            CGFloat components[] = {[[colorComponents objectAtIndex:0] floatValue],
                [[colorComponents objectAtIndex:1] floatValue],
                [[colorComponents objectAtIndex:2] floatValue],
                [[colorComponents objectAtIndex:3] floatValue]};

            CGColorRef color = CGColorCreate(rgbColorSpace, components);
            CFAttributedStringSetAttribute(text, CFRangeFromNSRange(range), kCTUnderlineColorAttributeName, color);
            CGColorRelease(color);
            CGColorSpaceRelease(rgbColorSpace);
        }
    }
}

#pragma mark - Parsing methods

- (void)extractStyleFromText:(NSString *)data
{
    // clear existing links
    self.links = [NSMutableArray array];
	
    // Replace html entities
    if (data)
    {
        data = [data stringByReplacingOccurrencesOfString:@"&lt;" withString:@"<"];
        data = [data stringByReplacingOccurrencesOfString:@"&gt;" withString:@">"];
        data = [data stringByReplacingOccurrencesOfString:@"&amp;" withString:@"&"];
        data = [data stringByReplacingOccurrencesOfString:@"&apos;" withString:@"'"];
        data = [data stringByReplacingOccurrencesOfString:@"&quot;" withString:@"\""];
    }

	NSMutableArray *components = [NSMutableArray array];
    NSInteger last_position = 0;
    NSString *text = nil;
	NSString *htmlTag = nil;

    NSScanner *scanner = [NSScanner scannerWithString:data];

    while (!scanner.isAtEnd)
    {
        // Get position of scanner, used to check if <p> tags are at the start of the text
        NSInteger tagStartPosition = scanner.scanLocation;

        // Capture tag text
		[scanner scanUpToString:@"<" intoString:NULL];
		[scanner scanUpToString:@">" intoString:&text];

		NSString *fullTag = [NSString stringWithFormat:@"%@>", text];

        NSInteger position = [data rangeOfString:fullTag].location;
		if (position != NSNotFound)
		{
            // Remove tag from text and replace occurences of paragraph tags
			if ([fullTag rangeOfString:@"<p"].location == 0 && tagStartPosition != 0)
			{
				data = [data stringByReplacingOccurrencesOfString:fullTag
                                                       withString:@"\n"
                                                          options:NSCaseInsensitiveSearch
                                                            range:NSMakeRange(last_position, position + fullTag.length - last_position)];
			}
			else
			{
				data = [data stringByReplacingOccurrencesOfString:fullTag
                                                       withString:@""
                                                          options:NSCaseInsensitiveSearch
                                                            range:NSMakeRange(last_position, position + fullTag.length - last_position)];
			}
		}

        // Found closing tag
		if ([text rangeOfString:@"</"].location == 0)
		{
            // Get just the html tag value
			htmlTag = [text substringFromIndex:2];

			if (position != NSNotFound)
			{
                // Find the the corresponding component for the closing tag
				for (NSInteger i = components.count - 1; i >= 0; i--)
				{
					MDHTMLComponent *component = components[i];
					if (component.text == nil && [component.htmlTag isEqualToString:htmlTag])
					{
						NSString *componentText = [data substringWithRange:NSMakeRange(component.position, position - component.position)];
						component.text = componentText;

                        if ([component.htmlTag caseInsensitiveCompare:@"a"] == NSOrderedSame)
                        {
                            NSTextCheckingResult *result = [NSTextCheckingResult linkCheckingResultWithRange:component.range
                                                                                                         URL:[NSURL URLWithString:component.attributes[@"href"]]];
                            [self.links addObject:result];
                        }
						break;
					}
				}
			}
		}
		else
		{
            // Get text components without the opening '<'
			NSMutableArray *textComponents = [[[text substringFromIndex:1] componentsSeparatedByCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]] mutableCopy];
			
            // Capture html tag for later
            htmlTag = textComponents[0];
			
			if (htmlTag.length > 0) {
				// remove the tag
				[textComponents removeObjectAtIndex:0];
				
				// remove consecutive spaces
				[textComponents removeObject:@""];
				
				// clear out spaces around "=" since they cause a crash and make it hard to identify which are keys and which are values
				NSString *cleanText = [textComponents componentsJoinedByString:@" "];
				cleanText = [cleanText stringByReplacingOccurrencesOfString:@"= " withString:@"="];
				cleanText = [cleanText stringByReplacingOccurrencesOfString:@" =" withString:@"="];
				// clean out spaces around value quotes but preserve spaces between pairs
				cleanText = [cleanText stringByReplacingOccurrencesOfString:@" ' " withString:@"' "];
				cleanText = [cleanText stringByReplacingOccurrencesOfString:@"=' " withString:@"='"];
				cleanText = [cleanText stringByReplacingOccurrencesOfString:@" \" " withString:@"\" "];
				cleanText = [cleanText stringByReplacingOccurrencesOfString:@"=\" " withString:@"=\""];
				textComponents = [[cleanText componentsSeparatedByString:@" "] mutableCopy];
				
				// spaces can still exist inside of values and they will be split, put them back with their key/value pair
				NSUInteger lastPairIndex = 0;
				if (textComponents.count > 1) {
					for (NSUInteger index = 1; index < textComponents.count; index++) {
						NSRange equalRange = [textComponents[index] rangeOfString:@"="];
						if (equalRange.location != NSNotFound) {
							lastPairIndex = index;
						} else {
							textComponents[lastPairIndex] = [textComponents[lastPairIndex] stringByAppendingFormat:@" %@", textComponents[index]];
							textComponents[index] = @"";
						}
					}
				}
				
				// Capture the tag's attributes
				NSMutableDictionary *attributes = [NSMutableDictionary dictionary];
				for (NSString *pairString in textComponents) {
					if (pairString.length > 0) {
						NSArray *pair = [pairString componentsSeparatedByString:@"="];
						if (pair.count > 0) {
							NSString *key = [pair[0] lowercaseString];
							if (pair.count >= 2) {
								NSString *value = [[pair subarrayWithRange:NSMakeRange(1, [pair count] - 1)] componentsJoinedByString:@"="];
								value = [value stringByReplacingOccurrencesOfString:@"\"" withString:@"" options:NSLiteralSearch range:NSMakeRange(0, 1)];
								value = [value stringByReplacingOccurrencesOfString:@"\"" withString:@"" options:NSLiteralSearch range:NSMakeRange([value length]-1, 1)];
								value = [value stringByReplacingOccurrencesOfString:@"'" withString:@"" options:NSLiteralSearch range:NSMakeRange(0, 1)];
								value = [value stringByReplacingOccurrencesOfString:@"'" withString:@"" options:NSLiteralSearch range:NSMakeRange([value length]-1, 1)];
								value = [value stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]];
								attributes[key] = value;
							} else if (pair.count == 1) {
								attributes[key] = key;
							}
						}
					}
				}
								
				// Create component from tag and attributes, we'll know the text once we reach the closing tag
				MDHTMLComponent *component = [[MDHTMLComponent alloc] initWithString:nil htmlTag:htmlTag attributes:attributes];
				component.position = position;
				
				[components addObject:component];
			}
		}

		last_position = position;
	}

    self.styleComponents = components;
    self.plainText = data;
}

#pragma mark - UILabel

- (void)setHighlighted:(BOOL)highlighted
{
    [super setHighlighted:highlighted];
    [self setNeedsDisplay];
}

// Fixes crash when loading from a UIStoryboard
- (UIColor *)textColor
{
	UIColor *color = [super textColor];
	if (!color)
    {
		color = [UIColor blackColor];
	}

	return color;
}

- (CGRect)textRectForBounds:(CGRect)bounds
     limitedToNumberOfLines:(NSInteger)numberOfLines
{
    if (!self.htmlText)
    {
        return [super textRectForBounds:bounds limitedToNumberOfLines:numberOfLines];
    }

    CGRect textRect = bounds;

    // Calculate height with a minimum of double the font pointSize, to ensure that CTFramesetterSuggestFrameSizeWithConstraints doesn't return CGSizeZero, as it would if textRect height is insufficient.
    textRect.size.height = MAX(self.font.pointSize * 2.0f, bounds.size.height);

    // Adjust the text to be in the center vertically, if the text size is smaller than bounds
    CGSize textSize = CTFramesetterSuggestFrameSizeWithConstraints(self.framesetter, CFRangeMake(0, (CFIndex)self.htmlAttributedText.length), NULL, textRect.size, NULL);
    textSize = CGSizeMake(CGFloat_ceil(textSize.width), CGFloat_ceil(textSize.height)); // Fix for iOS 4, CTFramesetterSuggestFrameSizeWithConstraints sometimes returns fractional sizes

    if (textSize.height < textRect.size.height)
    {
        CGFloat yOffset = 0.0f;
        switch (self.verticalAlignment)
        {
            case MDHTMLLabelVerticalAlignmentCenter:
                yOffset = CGFloat_floor((bounds.size.height - textSize.height) / 2.0f);
                break;
            case MDHTMLLabelVerticalAlignmentBottom:
                yOffset = bounds.size.height - textSize.height;
                break;
            case MDHTMLLabelVerticalAlignmentTop:
            default:
                break;
        }

        textRect.origin.y += yOffset;
    }

    return textRect;
}

#pragma mark - UIView

+ (CGFloat)sizeThatFitsHTMLString:(NSString *)htmlString
                         withFont:(UIFont *)font
                      constraints:(CGSize)size
           limitedToNumberOfLines:(NSUInteger)numberOfLines
                   autoDetectUrls:(BOOL)autoDetectUrls
{
    MDHTMLLabel *label = [[MDHTMLLabel alloc] initWithFrame:CGRectMake(0.0, 0.0, size.width, size.height)];
    label.font = font;
    label.numberOfLines = numberOfLines;
    label.lineBreakMode = NSLineBreakByWordWrapping;
    label.autoDetectUrls = autoDetectUrls;
    label.htmlText = htmlString;

    return [label sizeThatFits:size].height;
}

- (CGSize)sizeThatFits:(CGSize)size
{
    if (!self.htmlAttributedText)
    {
        return [super sizeThatFits:size];
    }

    return CTFramesetterSuggestFrameSizeForAttributedStringWithConstraints(self.framesetter, self.htmlAttributedText, size, (NSUInteger)self.numberOfLines);
}

- (CGSize)intrinsicContentSize
{
    // There's an implicit width from the original UILabel implementation
    return [self sizeThatFits:[super intrinsicContentSize]];
}

- (void)tintColorDidChange
{
    BOOL isInactive = (CGColorSpaceGetModel(CGColorGetColorSpace([self.tintColor CGColor])) == kCGColorSpaceModelMonochrome);

    NSMutableDictionary *mutableLinkAttributes = [self.linkAttributes mutableCopy];
    if (!mutableLinkAttributes[(NSString *)kCTForegroundColorAttributeName] && !mutableLinkAttributes[NSForegroundColorAttributeName])
    {
        if ([self respondsToSelector:@selector(tintColor)])
        {
            mutableLinkAttributes[(NSString *)kCTForegroundColorAttributeName] = self.tintColor;
        }
        else
        {
            mutableLinkAttributes[(NSString *)kCTForegroundColorAttributeName] = [UIColor blueColor];
        }
    }

    if (!mutableLinkAttributes[(NSString *)kCTFontAttributeName] && !mutableLinkAttributes[NSFontAttributeName])
    {
        mutableLinkAttributes[(NSString *)kCTFontAttributeName] = self.font;
    }

    NSMutableDictionary *mutableInactiveLinkAttributes = [self.inactiveLinkAttributes mutableCopy];
    if (!mutableInactiveLinkAttributes[(NSString *)kCTForegroundColorAttributeName] && !mutableInactiveLinkAttributes[NSForegroundColorAttributeName])
    {
        mutableInactiveLinkAttributes[(NSString *)kCTForegroundColorAttributeName] = [UIColor grayColor];
    }

    if (!mutableInactiveLinkAttributes[(NSString *)kCTFontAttributeName] && !mutableInactiveLinkAttributes[NSFontAttributeName])
    {
        mutableInactiveLinkAttributes[(NSString *)kCTFontAttributeName] = mutableLinkAttributes[(NSString *)kCTFontAttributeName];
    }

    NSDictionary *attributesToRemove = isInactive ? mutableLinkAttributes : mutableInactiveLinkAttributes;
    NSDictionary *attributesToAdd = isInactive ? mutableInactiveLinkAttributes : mutableLinkAttributes;

    NSMutableAttributedString *mutableAttributedString = [self.htmlAttributedText mutableCopy];
    for (NSTextCheckingResult *result in self.links)
    {
        [attributesToRemove enumerateKeysAndObjectsUsingBlock:^(NSString *name, __unused id value, __unused BOOL *stop)
         {
             [mutableAttributedString removeAttribute:name range:result.range];
         }];

        if (attributesToAdd)
        {
            [mutableAttributedString addAttributes:attributesToAdd range:result.range];
        }
    }

    self.htmlAttributedText = mutableAttributedString;
    [self setNeedsDisplay];
}

#pragma mark - Data Detection

- (NSString *)detectURLsInText:(NSString *)text
{
    NSDataDetector *detector = [NSDataDetector dataDetectorWithTypes:NSTextCheckingTypeLink error:NULL];
	
	NSUInteger matchDetectorStartLocation = 0;
    NSTextCheckingResult *match = [detector firstMatchInString:text
                                                       options:kNilOptions
                                                         range:NSMakeRange(matchDetectorStartLocation, text.length)];
	
    while (match != nil && match.range.location != NSNotFound)
    {
        NSUInteger matchLength = match.range.length;
        if (match.resultType == NSTextCheckingTypeLink)
        {
            // if there's no "<a" or "href" before the link regardless of spaces. e.g. this is valid <a href = "SomeURL">
			BOOL insideHref = NO;
			// an href
			// there has to be room for at least "<a href='" before we bother checking this
			if ((match.range.location - matchDetectorStartLocation) >= 8) {
				NSRange prevTextRange = NSMakeRange(matchDetectorStartLocation, (match.range.location - 1) - matchDetectorStartLocation);
				NSRange prevHrefRange = [text rangeOfString:@"href" options:NSCaseInsensitiveSearch | NSBackwardsSearch range:prevTextRange];
				NSRange prevStartATagRange = [text rangeOfString:@"<a" options:NSCaseInsensitiveSearch | NSBackwardsSearch range:prevTextRange];
				NSRange prevEndTagRange = [text rangeOfString:@">" options:NSCaseInsensitiveSearch | NSBackwardsSearch range:prevTextRange];
				insideHref = (prevHrefRange.location != NSNotFound && prevStartATagRange.location != NSNotFound &&
							  NSMaxRange(prevStartATagRange) < prevHrefRange.location &&
							  (prevEndTagRange.location == NSNotFound || (prevEndTagRange.location != NSNotFound &&
																		   prevStartATagRange.location >= NSMaxRange(prevEndTagRange))));
			}
			
            BOOL wrappedInAnchors = [text rangeOfString:@"a>" options:NSCaseInsensitiveSearch | NSBackwardsSearch range:match.range].location != NSNotFound;

            if (!insideHref && !wrappedInAnchors)
            {
                NSString *wrappedURL = [NSString stringWithFormat:@"<a href='%@'>%@</a>", match.URL.absoluteString, match.URL.absoluteString];
                text = [text stringByReplacingCharactersInRange:match.range
                                                     withString:wrappedURL];
                matchLength = wrappedURL.length;
            }
        }

		matchDetectorStartLocation = match.range.location + matchLength;
        match = [detector firstMatchInString:text
                                     options:kNilOptions
                                       range:NSMakeRange(matchDetectorStartLocation, text.length - matchDetectorStartLocation)];
    }

    return text;
}

- (NSTextCheckingResult *)linkAtCharacterIndex:(CFIndex)idx
{
    NSEnumerator *enumerator = [self.links reverseObjectEnumerator];
    NSTextCheckingResult *result = nil;
    while ((result = [enumerator nextObject]))
    {
        if (NSLocationInRange((NSUInteger)idx, result.range))
        {
            return result;
        }
    }

    return nil;
}

- (NSTextCheckingResult *)linkAtPoint:(CGPoint)p
{
    CFIndex idx = [self characterIndexAtPoint:p];

    return [self linkAtCharacterIndex:idx];
}

- (CFIndex)characterIndexAtPoint:(CGPoint)p
{
    if (!CGRectContainsPoint(self.bounds, p))
    {
        return NSNotFound;
    }

    CGRect textRect = [self textRectForBounds:self.bounds limitedToNumberOfLines:self.numberOfLines];
    if (!CGRectContainsPoint(textRect, p))
    {
        return NSNotFound;
    }

    // Offset tap coordinates by textRect origin to make them relative to the origin of frame
    p = CGPointMake(p.x - textRect.origin.x, p.y - textRect.origin.y);
    // Convert tap coordinates (start at top left) to CT coordinates (start at bottom left)
    p = CGPointMake(p.x, textRect.size.height - p.y);

    CGMutablePathRef path = CGPathCreateMutable();
    CGPathAddRect(path, NULL, textRect);
    CTFrameRef frame = CTFramesetterCreateFrame([self framesetter], CFRangeMake(0, (CFIndex)self.htmlAttributedText.length), path, NULL);
    if (frame == NULL)
    {
        CFRelease(path);
        return NSNotFound;
    }

    CFArrayRef lines = CTFrameGetLines(frame);
    NSInteger numberOfLines = self.numberOfLines > 0 ? MIN(self.numberOfLines, CFArrayGetCount(lines)) : CFArrayGetCount(lines);
    if (numberOfLines == 0)
    {
        CFRelease(frame);
        CFRelease(path);
        return NSNotFound;
    }

    CFIndex idx = NSNotFound;

    CGPoint lineOrigins[numberOfLines];
    CTFrameGetLineOrigins(frame, CFRangeMake(0, numberOfLines), lineOrigins);

    for (CFIndex lineIndex = 0; lineIndex < numberOfLines; lineIndex++)
    {
        CGPoint lineOrigin = lineOrigins[lineIndex];
        CTLineRef line = CFArrayGetValueAtIndex(lines, lineIndex);

        // Get bounding information of line
        CGFloat ascent = 0.0f, descent = 0.0f, leading = 0.0f;
        CGFloat width = (CGFloat)CTLineGetTypographicBounds(line, &ascent, &descent, &leading);
        CGFloat yMin = (CGFloat)floor(lineOrigin.y - descent);
        CGFloat yMax = (CGFloat)ceil(lineOrigin.y + ascent);

        // Check if we've already passed the line
        if (p.y > yMax)
        {
            break;
        }
        // Check if the point is within this line vertically
        if (p.y >= yMin)
        {
            // Check if the point is within this line horizontally
            if (p.x >= lineOrigin.x && p.x <= lineOrigin.x + width) {
                // Convert CT coordinates to line-relative coordinates
                CGPoint relativePoint = CGPointMake(p.x - lineOrigin.x, p.y - lineOrigin.y);
                idx = CTLineGetStringIndexForPosition(line, relativePoint);
                break;
            }
        }
    }

    CFRelease(frame);
    CFRelease(path);

    return idx;
}

#pragma mark - UIResponder

- (BOOL)canBecomeFirstResponder
{
    return YES;
}

- (BOOL)canPerformAction:(SEL)action
              withSender:(__unused id)sender
{
    return (action == @selector(copy:));
}

- (void)touchesBegan:(NSSet *)touches
           withEvent:(UIEvent *)event
{
    UITouch *touch = [touches anyObject];

    self.activeLink = [self linkAtPoint:[touch locationInView:self]];

    if (self.activeLink)
    {
        self.holdGestureTimer = [NSTimer scheduledTimerWithTimeInterval:self.minimumPressDuration
                                                                 target:self
                                                               selector:@selector(handleDidHoldTouch:)
                                                               userInfo:touch
                                                                repeats:NO];
    }
    else
    {
        [super touchesBegan:touches withEvent:event];
        self.highlighted = YES;
    }
}

- (void)touchesMoved:(NSSet *)touches
           withEvent:(UIEvent *)event
{
    if (self.activeLink)
    {
        UITouch *touch = [touches anyObject];

        if (self.activeLink != [self linkAtPoint:[touch locationInView:self]])
        {
            self.activeLink = nil;
            [self.holdGestureTimer invalidate];
        }
    }
    else
    {
        [super touchesMoved:touches withEvent:event];
    }
}

- (void)touchesEnded:(NSSet *)touches
           withEvent:(UIEvent *)event
{
    self.highlighted = NO;

    if (self.activeLink)
    {
        NSTextCheckingResult *result = self.activeLink;
        self.activeLink = nil;
        [self.holdGestureTimer invalidate];

        if ([self.delegate respondsToSelector:@selector(HTMLLabel:didSelectLinkWithURL:)])
        {
            [self.delegate HTMLLabel:self didSelectLinkWithURL:result.URL];
            return;
        }
    }
    else
    {
        [super touchesEnded:touches withEvent:event];
    }
}

- (void)touchesCancelled:(NSSet *)touches
               withEvent:(UIEvent *)event
{
    if (self.activeLink)
    {
        self.activeLink = nil;
    }
    else
    {
        [super touchesCancelled:touches withEvent:event];
    }
}

- (void)handleDidHoldTouch:(NSTimer *)timer
{
    self.highlighted = NO;

    [self.holdGestureTimer invalidate];

    if ([self.delegate respondsToSelector:@selector(HTMLLabel:didHoldLinkWithURL:)])
    {
        NSTextCheckingResult *result = self.activeLink;
        self.activeLink = nil;

        [self.delegate HTMLLabel:self didHoldLinkWithURL:result.URL];
    }
}

#pragma mark - UIResponderStandardEditActions

- (void)copy:(id)sender
{
    if (self.htmlText)
    {
        [[UIPasteboard generalPasteboard] setString:self.plainText];
    }
    else
    {
        [super copy:sender];
    }
}

#pragma mark - NSCoding

- (void)encodeWithCoder:(NSCoder *)coder
{
    [super encodeWithCoder:coder];

    [coder encodeObject:self.htmlText forKey:NSStringFromSelector(@selector(links))];
    [coder encodeObject:self.links forKey:NSStringFromSelector(@selector(links))];
    [coder encodeObject:self.linkAttributes forKey:NSStringFromSelector(@selector(linkAttributes))];
    [coder encodeObject:self.activeLinkAttributes forKey:NSStringFromSelector(@selector(activeLinkAttributes))];
    [coder encodeObject:self.inactiveLinkAttributes forKey:NSStringFromSelector(@selector(inactiveLinkAttributes))];
    [coder encodeDouble:self.minimumPressDuration forKey:NSStringFromSelector(@selector(minimumPressDuration))];
    [coder encodeDouble:self.shadowRadius forKey:NSStringFromSelector(@selector(shadowRadius))];
    [coder encodeDouble:self.highlightedShadowRadius forKey:NSStringFromSelector(@selector(highlightedShadowRadius))];
    [coder encodeCGSize:self.highlightedShadowOffset forKey:NSStringFromSelector(@selector(highlightedShadowOffset))];
    [coder encodeObject:self.highlightedShadowColor forKey:NSStringFromSelector(@selector(highlightedShadowColor))];
    [coder encodeDouble:self.firstLineIndent forKey:NSStringFromSelector(@selector(firstLineIndent))];
    [coder encodeDouble:self.leading forKey:NSStringFromSelector(@selector(leading))];
    [coder encodeDouble:self.lineHeightMultiple forKey:NSStringFromSelector(@selector(lineHeightMultiple))];
    [coder encodeUIEdgeInsets:self.textInsets forKey:NSStringFromSelector(@selector(textInsets))];
    [coder encodeInteger:self.verticalAlignment forKey:NSStringFromSelector(@selector(verticalAlignment))];
    [coder encodeObject:self.truncationTokenString forKey:NSStringFromSelector(@selector(truncationTokenString))];
    [coder encodeObject:self.truncationTokenStringAttributes forKey:NSStringFromSelector(@selector(truncationTokenStringAttributes))];
}

- (id)initWithCoder:(NSCoder *)coder
{
    self = [super initWithCoder:coder];

    if (self)
	{
		[self commonInit];

        if ([coder containsValueForKey:NSStringFromSelector(@selector(htmlText))])
        {
            self.htmlText = [coder decodeObjectForKey:NSStringFromSelector(@selector(htmlText))];
        }

        if ([coder containsValueForKey:NSStringFromSelector(@selector(links))])
        {
            self.links = [coder decodeObjectForKey:NSStringFromSelector(@selector(links))];
        }

        if ([coder containsValueForKey:NSStringFromSelector(@selector(linkAttributes))])
        {
            self.linkAttributes = [coder decodeObjectForKey:NSStringFromSelector(@selector(linkAttributes))];
        }

        if ([coder containsValueForKey:NSStringFromSelector(@selector(activeLinkAttributes))])
        {
            self.activeLinkAttributes = [coder decodeObjectForKey:NSStringFromSelector(@selector(activeLinkAttributes))];
        }

        if ([coder containsValueForKey:NSStringFromSelector(@selector(inactiveLinkAttributes))])
        {
            self.inactiveLinkAttributes = [coder decodeObjectForKey:NSStringFromSelector(@selector(inactiveLinkAttributes))];
        }

        if ([coder containsValueForKey:NSStringFromSelector(@selector(minimumPressDuration))])
        {
            self.minimumPressDuration = [coder decodeDoubleForKey:NSStringFromSelector(@selector(minimumPressDuration))];
        }

        if ([coder containsValueForKey:NSStringFromSelector(@selector(shadowRadius))])
        {
            self.shadowRadius = [coder decodeDoubleForKey:NSStringFromSelector(@selector(shadowRadius))];
        }

        if ([coder containsValueForKey:NSStringFromSelector(@selector(highlightedShadowRadius))])
        {
            self.highlightedShadowRadius = [coder decodeDoubleForKey:NSStringFromSelector(@selector(highlightedShadowRadius))];
        }

        if ([coder containsValueForKey:NSStringFromSelector(@selector(highlightedShadowOffset))])
        {
            self.highlightedShadowOffset = [coder decodeCGSizeForKey:NSStringFromSelector(@selector(highlightedShadowOffset))];
        }

        if ([coder containsValueForKey:NSStringFromSelector(@selector(highlightedShadowColor))])
        {
            self.highlightedShadowColor = [coder decodeObjectForKey:NSStringFromSelector(@selector(highlightedShadowColor))];
        }

        if ([coder containsValueForKey:NSStringFromSelector(@selector(firstLineIndent))])
        {
            self.firstLineIndent = [coder decodeDoubleForKey:NSStringFromSelector(@selector(firstLineHeadIndent))];
        }
        
        if ([coder containsValueForKey:NSStringFromSelector(@selector(leading))])
        {
            self.leading = [coder decodeDoubleForKey:NSStringFromSelector(@selector(leading))];
        }
        
        if ([coder containsValueForKey:NSStringFromSelector(@selector(lineHeightMultiple))])
        {
            self.lineHeightMultiple = [coder decodeDoubleForKey:NSStringFromSelector(@selector(lineHeightMultiple))];
        }
        
        if ([coder containsValueForKey:NSStringFromSelector(@selector(textInsets))])
        {
            self.textInsets = [coder decodeUIEdgeInsetsForKey:NSStringFromSelector(@selector(textInsets))];
        }
        
        if ([coder containsValueForKey:NSStringFromSelector(@selector(verticalAlignment))])
        {
            self.verticalAlignment = [coder decodeIntegerForKey:NSStringFromSelector(@selector(verticalAlignment))];
        }
        
        if ([coder containsValueForKey:NSStringFromSelector(@selector(truncationTokenString))])
        {
            self.truncationTokenString = [coder decodeObjectForKey:NSStringFromSelector(@selector(truncationTokenString))];
        }
        
        if ([coder containsValueForKey:NSStringFromSelector(@selector(truncationTokenStringAttributes))])
        {
            self.truncationTokenStringAttributes = [coder decodeObjectForKey:NSStringFromSelector(@selector(truncationTokenStringAttributes))];
        }
    }
    
    return self;
}

#pragma mark - Custom fonts
- (UIFont *)boldFontOfSize:(CGFloat)size {
    if (self.customBoldFontName) {
        return [UIFont fontWithName:self.customBoldFontName size:size];
    }
    return [UIFont boldSystemFontOfSize:size];
}

- (UIFont *)italicFontOfSize:(CGFloat)size {
    if (self.customItalicFontName) {
        return [UIFont fontWithName:self.customItalicFontName size:size];
    }
    return [UIFont italicSystemFontOfSize:size];
}

- (UIFont *)boldItalicFontOfSize:(CGFloat)size {
    if (self.customBoldItalicFontName) {
        return [UIFont fontWithName:self.customBoldItalicFontName size:size];
    }
    return [UIFont fontWithName:[NSString stringWithFormat:@"%@-BoldOblique", self.font.fontName] size:size];
}
@end