update README.md

README.md

@@ -2,8 +2,8 @@ YYText
 ==============
 [![License MIT](https://img.shields.io/badge/license-MIT-green.svg?style=flat)](https://raw.githubusercontent.com/ibireme/YYText/master/LICENSE) 
 [![Carthage compatible](https://img.shields.io/badge/Carthage-compatible-4BC51D.svg?style=flat)](https://github.com/Carthage/Carthage) 
-[![CocoaPods](http://img.shields.io/cocoapods/v/YYText.svg?style=flat)](http://cocoapods.org/?q= YYText) 
-[![CocoaPods](http://img.shields.io/cocoapods/p/YYText.svg?style=flat)](http://cocoapods.org/?q= YYText) 
+[![CocoaPods](http://img.shields.io/cocoapods/v/YYText.svg?style=flat)](http://cocoapods.org/pods/YYText) 
+[![CocoaPods](http://img.shields.io/cocoapods/p/YYText.svg?style=flat)](http://cocoadocs.org/docsets/YYText) 
 [![Support](https://img.shields.io/badge/support-iOS%206%2B%20-blue.svg?style=flat)](https://www.apple.com/nl/ios/) 
 [![Build Status](https://travis-ci.org/ibireme/YYText.svg?branch=master)](https://travis-ci.org/ibireme/YYText)
 
@@ -110,7 +110,7 @@ Text Attributes
   </tbody>
 </table>
 
-###CoreText attributes which is supported by YYText
+### CoreText attributes which is supported by YYText
 <table>
   <thead>
     <tr>
@@ -234,253 +234,258 @@ Usage
 ==============
 
 ### Basic
-    // YYLabel (similar to UILabel)
-    YYLabel *label = [YYLabel new];
-    label.frame = ...
-    label.font = ...
-    label.textColor = ...
-    label.textAlignment = ...
-    label.lineBreakMode = ...
-    label.numberOfLines = ...
-    label.text = ...
-    
-    // YYTextView (similar to UITextView)
-    YYTextView *textView = [YYTextView new];
-    textView.frame = ...
-    textView.font = ...
-    textView.textColor = ...
-    textView.dataDetectorTypes = ...
-    textView.placeHolderText = ...
-    textView.placeHolderTextColor = ...
-    textView.delegate = ...
+```objc
+// YYLabel (similar to UILabel)
+YYLabel *label = [YYLabel new];
+label.frame = ...
+label.font = ...
+label.textColor = ...
+label.textAlignment = ...
+label.lineBreakMode = ...
+label.numberOfLines = ...
+label.text = ...
     
+// YYTextView (similar to UITextView)
+YYTextView *textView = [YYTextView new];
+textView.frame = ...
+textView.font = ...
+textView.textColor = ...
+textView.dataDetectorTypes = ...
+textView.placeHolderText = ...
+textView.placeHolderTextColor = ...
+textView.delegate = ...
+```    
 
 ### Attributed text
+```objc
+// 1. Create an attributed string.
+NSMutableAttributedString *text = [[NSMutableAttributedString alloc] initWithString:@"Some Text, blabla..."];
     
-    // 1. Create an attributed string.
-    NSMutableAttributedString *text = [[NSMutableAttributedString alloc] initWithString:@"Some Text, blabla..."];
-    
-    // 2. Set attributes to text, you can use almost all CoreText attributes.
-    text.yy_font = [UIFont boldSystemFontOfSize:30];
-    text.yy_color = [UIColor blueColor];
-    [text yy_setColor:[UIColor redColor] range:NSMakeRange(0, 4)];
-    text.yy_lineSpacing = 10;
-    
-    // 3. Set to YYLabel or YYTextView.
-    YYLabel *label = [YYLabel new];
-    label.frame = ...
-    label.attributedString = text;
+// 2. Set attributes to text, you can use almost all CoreText attributes.
+text.yy_font = [UIFont boldSystemFontOfSize:30];
+text.yy_color = [UIColor blueColor];
+[text yy_setColor:[UIColor redColor] range:NSMakeRange(0, 4)];
+text.yy_lineSpacing = 10;
     
-    YYTextView *textView = [YYTextView new];
-    textView.frame = ...
-    textView.attributedString = text;
+// 3. Set to YYLabel or YYTextView.
+YYLabel *label = [YYLabel new];
+label.frame = ...
+label.attributedString = text;
     
+YYTextView *textView = [YYTextView new];
+textView.frame = ...
+textView.attributedString = text;
+```
+
 ### Text highlight
     
 You can use some convenience methods to set text highlight:
-
-	[text yy_setTextHighlightRange:range
-                            color:[UIColor blueColor]
-                  backgroundColor:[UIColor grayColor]
-                        tapAction:^(UIView *containerView, NSAttributedString *text, NSRange range, CGRect rect){ 
-                            NSLog(@"tap text range:..."); 
-                        }];
-    
+```objc
+[text yy_setTextHighlightRange:range
+                       color:[UIColor blueColor]
+             backgroundColor:[UIColor grayColor]
+                   tapAction:^(UIView *containerView, NSAttributedString *text, NSRange range, CGRect rect){ 
+                       NSLog(@"tap text range:..."); 
+                   }];
+```
 Or set the text highlight with your custom config:
+```objc
+// 1. Create a 'highlight' attribute for text.
+YYTextBorder *border = [YYTextBorder borderWithFillColor:[UIColor grayColor] cornerRadius:3];
+   
+YYTextHighlight *highlight = [YYTextHighlight new];
+[highlight setColor:[UIColor whiteColor]];
+[highlight setBackgroundBorder:highlightBorder];
+highlight.tapAction = ^(UIView *containerView, NSAttributedString *text, NSRange range, CGRect rect) {
+ NSLog(@"tap text range:..."); 
+ // you can also set the action handler to YYLabel or YYTextView.
+};
     
-    // 1. Create a 'highlight' attribute for text.
-    YYTextBorder *border = [YYTextBorder borderWithFillColor:[UIColor grayColor] cornerRadius:3];
-        
-    YYTextHighlight *highlight = [YYTextHighlight new];
-    [highlight setColor:[UIColor whiteColor]];
-    [highlight setBackgroundBorder:highlightBorder];
-    highlight.tapAction = ^(UIView *containerView, NSAttributedString *text, NSRange range, CGRect rect) {
-      NSLog(@"tap text range:..."); 
-      // you can also set the action handler to YYLabel or YYTextView.
-    };
-    
-    // 2. Add 'highlight' attribute to a range of text.
-    [attributedText yy_setTextHighlight:highlight range:highlightRange];
+// 2. Add 'highlight' attribute to a range of text.
+[attributedText yy_setTextHighlight:highlight range:highlightRange];
     
-    // 3. Set text to label or text view.
-    YYLabel *label = ...
-    label.attributedText = attributedText
+// 3. Set text to label or text view.
+YYLabel *label = ...
+label.attributedText = attributedText
     
-    YYTextView *textView = ...
-    textView.attributedText = ...
+YYTextView *textView = ...
+textView.attributedText = ...
     
-    // 4. Receive user interactive action.
-    label.highlightTapAction = ^(UIView *containerView, NSAttributedString *text, NSRange range, CGRect rect) {
-        NSLog(@"tap text range:...");
-    };
-    label.highlightLongPressAction = ^(UIView *containerView, NSAttributedString *text, NSRange range, CGRect rect) {
-        NSLog(@"long press text range:...");
-    };
+// 4. Receive user interactive action.
+label.highlightTapAction = ^(UIView *containerView, NSAttributedString *text, NSRange range, CGRect rect) {
+   NSLog(@"tap text range:...");
+};
+label.highlightLongPressAction = ^(UIView *containerView, NSAttributedString *text, NSRange range, CGRect rect) {
+   NSLog(@"long press text range:...");
+};
     
-    @UITextViewDelegate
-    - (void)textView:(YYTextView *)textView didTapHighlight:(YYTextHighlight *)highlight inRange:(NSRange)characterRange rect:(CGRect)rect {
-        NSLog(@"tap text range:...");
-    }
-    - (void)textView:(YYTextView *)textView didLongPressHighlight:(YYTextHighlight *)highlight inRange:(NSRange)characterRange rect:(CGRect)rect {
-        NSLog(@"long press text range:...");
-    }
-
+@UITextViewDelegate
+- (void)textView:(YYTextView *)textView didTapHighlight:(YYTextHighlight *)highlight inRange:(NSRange)characterRange rect:(CGRect)rect {
+   NSLog(@"tap text range:...");
+}
+- (void)textView:(YYTextView *)textView didLongPressHighlight:(YYTextHighlight *)highlight inRange:(NSRange)characterRange rect:(CGRect)rect {
+   NSLog(@"long press text range:...");
+}
+```
 
 ### Text attachments
-
-	NSMutableAttributedString *text = [NSMutableAttributedString new];
-	UIFont *font = [UIFont systemFontOfSize:16];
-	NSMutableAttributedString *attachment = nil;
+```objc
+NSMutableAttributedString *text = [NSMutableAttributedString new];
+UIFont *font = [UIFont systemFontOfSize:16];
+NSMutableAttributedString *attachment = nil;
 	
-	// UIImage attachment
-	UIImage *image = [UIImage imageNamed:@"dribbble64_imageio"];
-	attachment = [NSMutableAttributedString yy_attachmentStringWithContent:image contentMode:UIViewContentModeCenter attachmentSize:image.size alignToFont:font alignment:YYTextVerticalAlignmentCenter];
-	[text appendAttributedString: attachment];
+// UIImage attachment
+UIImage *image = [UIImage imageNamed:@"dribbble64_imageio"];
+attachment = [NSMutableAttributedString yy_attachmentStringWithContent:image contentMode:UIViewContentModeCenter attachmentSize:image.size alignToFont:font alignment:YYTextVerticalAlignmentCenter];
+[text appendAttributedString: attachment];
 	
-	// UIView attachment
-	UISwitch *switcher = [UISwitch new];
-    [switcher sizeToFit];
-	attachment = [NSMutableAttributedString yy_attachmentStringWithContent:switcher contentMode:UIViewContentModeBottom attachmentSize:switcher.size alignToFont:font alignment:YYTextVerticalAlignmentCenter];
-	[text appendAttributedString: attachment];
+// UIView attachment
+UISwitch *switcher = [UISwitch new];
+[switcher sizeToFit];
+attachment = [NSMutableAttributedString yy_attachmentStringWithContent:switcher contentMode:UIViewContentModeBottom attachmentSize:switcher.size alignToFont:font alignment:YYTextVerticalAlignmentCenter];
+[text appendAttributedString: attachment];
 	
-	// CALayer attachment
-	CASharpLayer *layer = [CASharpLayer layer];
-	layer.path = ...
-	attachment = [NSMutableAttributedString yy_attachmentStringWithContent:layer contentMode:UIViewContentModeBottom attachmentSize:switcher.size alignToFont:font alignment:YYTextVerticalAlignmentCenter];
-	[text appendAttributedString: attachment];
-
+// CALayer attachment
+CASharpLayer *layer = [CASharpLayer layer];
+layer.path = ...
+attachment = [NSMutableAttributedString yy_attachmentStringWithContent:layer contentMode:UIViewContentModeBottom attachmentSize:switcher.size alignToFont:font alignment:YYTextVerticalAlignmentCenter];
+[text appendAttributedString: attachment];
+```
 
 ### Text layout calculation
+```objc
+NSAttributedString *text = ...
+CGSize size = CGSizeMake(100, CGFLOAT_MAX);
+YYTextLayout *layout = [YYTextLayout layoutWithContainerSize:size text:text];
 	
-	NSAttributedString *text = ...
-	CGSize size = CGSizeMake(100, CGFLOAT_MAX);
-	YYTextLayout *layout = [YYTextLayout layoutWithContainerSize:size text:text];
-	
-	// get text bounding
-	layout.textBoundingRect; // get bounding rect
-	layout.textBoundingSize; // get bounding size
+// get text bounding
+layout.textBoundingRect; // get bounding rect
+layout.textBoundingSize; // get bounding size
 	
-	 // query text layout
-	[layout lineIndexForPoint:CGPointMake(10,10)];
-	[layout closestLineIndexForPoint:CGPointMake(10,10)];
-	[layout closestPositionToPoint:CGPointMake(10,10)];
-	[layout textRangeAtPoint:CGPointMake(10,10)];
-	[layout rectForRange:[YYTextRange rangeWithRange:NSMakeRange(10,2)]];
-	[layout selectionRectsForRange:[YYTextRange rangeWithRange:NSMakeRange(10,2)]];
+ // query text layout
+[layout lineIndexForPoint:CGPointMake(10,10)];
+[layout closestLineIndexForPoint:CGPointMake(10,10)];
+[layout closestPositionToPoint:CGPointMake(10,10)];
+[layout textRangeAtPoint:CGPointMake(10,10)];
+[layout rectForRange:[YYTextRange rangeWithRange:NSMakeRange(10,2)]];
+[layout selectionRectsForRange:[YYTextRange rangeWithRange:NSMakeRange(10,2)]];
 	
-	// text layout display
-	YYLabel *label = [YYLabel new];
-	label.size = layout.textBoundingSize;
-	label.textLayout = layout;
-
+// text layout display
+YYLabel *label = [YYLabel new];
+label.size = layout.textBoundingSize;
+label.textLayout = layout;
+```
 
 ### Adjust text line position
+```objc
+// Convenience methods:
+// 1. Create a text line position modifier, implements `YYTextLinePositionModifier` protocol.
+// 2. Set it to label or text view.
 	
-	// Convenience methods:
-	// 1. Create a text line position modifier, implements `YYTextLinePositionModifier` protocol.
-	// 2. Set it to label or text view.
-	
-	YYTextLinePositionSimpleModifier *modifier = [YYTextLinePositionSimpleModifier new];
-	modifier.fixedLineHeight = 24;
-	
-	YYLabel *label = [YYLabel new];
-	label.linePositionModifier = modifier;
+YYTextLinePositionSimpleModifier *modifier = [YYTextLinePositionSimpleModifier new];
+modifier.fixedLineHeight = 24;
 	
-	// Fully control
-	YYTextLinePositionSimpleModifier *modifier = [YYTextLinePositionSimpleModifier new];
-	modifier.fixedLineHeight = 24;
+YYLabel *label = [YYLabel new];
+label.linePositionModifier = modifier;
 	
-	YYTextContainer *container = [YYTextContainer new];
-	container.size = CGSizeMake(100, CGFLOAT_MAX);
-	container.linePositionModifier = modifier;
+// Fully control
+YYTextLinePositionSimpleModifier *modifier = [YYTextLinePositionSimpleModifier new];
+modifier.fixedLineHeight = 24;
 	
-	YYTextLayout *layout = [YYTextLayout layoutWithContainer:container text:text];
-	YYLabel *label = [YYLabel new];
-	label.size = layout.textBoundingSize;
-	label.textLayout = layout;
+YYTextContainer *container = [YYTextContainer new];
+container.size = CGSizeMake(100, CGFLOAT_MAX);
+container.linePositionModifier = modifier;
 	
+YYTextLayout *layout = [YYTextLayout layoutWithContainer:container text:text];
+YYLabel *label = [YYLabel new];
+label.size = layout.textBoundingSize;
+label.textLayout = layout;
+```	
 	
 ### Asynchronous layout and rendering
+```objc
+// If you have performance issues,
+// you may enable the asynchronous display mode.
+YYLabel *label = ...
+label.displaysAsynchronously = YES;
     
-    // If you have performance issues,
-    // you may enable the asynchronous display mode.
-    YYLabel *label = ...
-    label.displaysAsynchronously = YES;
+// If you want to get the highest performance, you should do 
+// text layout with `YYTextLayout` class in background thread.
+YYLabel *label = [YYLabel new];
+label.displaysAsynchronously = YES;
+label.ignoreCommonProperties = YES;
     
-    // If you want to get the highest performance, you should do 
-    // text layout with `YYTextLayout` class in background thread.
-    YYLabel *label = [YYLabel new];
-    label.displaysAsynchronously = YES;
-    label.ignoreCommonProperties = YES;
-    
-    dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
-        // Create attributed string.
-        NSMutableAttributedString *text = [[NSMutableAttributedString alloc] initWithString:@"Some Text"];
-        text.yy_font = [UIFont systemFontOfSize:16];
-        text.yy_color = [UIColor grayColor];
-        [text yy_setColor:[UIColor redColor] range:NSMakeRange(0, 4)];
+dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
+   // Create attributed string.
+   NSMutableAttributedString *text = [[NSMutableAttributedString alloc] initWithString:@"Some Text"];
+   text.yy_font = [UIFont systemFontOfSize:16];
+   text.yy_color = [UIColor grayColor];
+   [text yy_setColor:[UIColor redColor] range:NSMakeRange(0, 4)];
  	
-        // Create text container
-        YYTextContainer *container = [YYTextContainer new];
-        container.size = CGSizeMake(100, CGFLOAT_MAX);
-        container.maximumNumberOfRows = 0;
-        
-        // Generate a text layout.
-        YYTextLayout *layout = [YYTextLayout layoutWithContainer:container text:text];
-        
-        dispatch_async(dispatch_get_main_queue(), ^{
-            label.size = layout.textBoundingSize;
-            label.textLayout = layout;
-        });
-    });
-
+   // Create text container
+   YYTextContainer *container = [YYTextContainer new];
+   container.size = CGSizeMake(100, CGFLOAT_MAX);
+   container.maximumNumberOfRows = 0;
+   
+   // Generate a text layout.
+   YYTextLayout *layout = [YYTextLayout layoutWithContainer:container text:text];
+   
+   dispatch_async(dispatch_get_main_queue(), ^{
+       label.size = layout.textBoundingSize;
+       label.textLayout = layout;
+   });
+});
+```
 
 ### Text container control
-
-	YYLabel *label = ...
-	label.textContainerPath = [UIBezierPath bezierPathWith...];
-	label.exclusionPaths = 	@[[UIBezierPath bezierPathWith...];,...];
-	label.textContainerInset = UIEdgeInsetsMake(...);
-	label.verticalForm = YES/NO;
-    
-    YYTextView *textView = ...
-	textView.exclusionPaths = 	@[[UIBezierPath bezierPathWith...];,...];
-	textView.textContainerInset = UIEdgeInsetsMake(...);
-	textView.verticalForm = YES/NO;
+```objc
+YYLabel *label = ...
+label.textContainerPath = [UIBezierPath bezierPathWith...];
+label.exclusionPaths = 	@[[UIBezierPath bezierPathWith...];,...];
+label.textContainerInset = UIEdgeInsetsMake(...);
+label.verticalForm = YES/NO;
     
+YYTextView *textView = ...
+textView.exclusionPaths = 	@[[UIBezierPath bezierPathWith...];,...];
+textView.textContainerInset = UIEdgeInsetsMake(...);
+textView.verticalForm = YES/NO;
+```
+   
 ### Text parser
-	// 1. Create a text parser
+```objc
+// 1. Create a text parser
 	
-    YYTextSimpleEmoticonParser *parser = [YYTextSimpleEmoticonParser new];
-    NSMutableDictionary *mapper = [NSMutableDictionary new];
-    mapper[@":smile:"] = [UIImage imageNamed:@"smile.png"];
-    mapper[@":cool:"] = [UIImage imageNamed:@"cool.png"];
-    mapper[@":cry:"] = [UIImage imageNamed:@"cry.png"];
-    mapper[@":wink:"] = [UIImage imageNamed:@"wink.png"];
-    parser.emoticonMapper = mapper;
+YYTextSimpleEmoticonParser *parser = [YYTextSimpleEmoticonParser new];
+NSMutableDictionary *mapper = [NSMutableDictionary new];
+mapper[@":smile:"] = [UIImage imageNamed:@"smile.png"];
+mapper[@":cool:"] = [UIImage imageNamed:@"cool.png"];
+mapper[@":cry:"] = [UIImage imageNamed:@"cry.png"];
+mapper[@":wink:"] = [UIImage imageNamed:@"wink.png"];
+parser.emoticonMapper = mapper;
 	
-	YYTextSimpleMarkdownParser *parser = [YYTextSimpleMarkdownParser new];
-    [parser setColorWithDarkTheme];
+YYTextSimpleMarkdownParser *parser = [YYTextSimpleMarkdownParser new];
+[parser setColorWithDarkTheme];
     
-    MyCustomParser *parser = ... // custom parser
+MyCustomParser *parser = ... // custom parser
     
-    // 2. Attach parser to label or text view
-    YYLabel *label = ...
-    label.textParser = parser;
+// 2. Attach parser to label or text view
+YYLabel *label = ...
+label.textParser = parser;
     
-    YYTextView *textView = ...
-    textView.textParser = parser;
-   
+YYTextView *textView = ...
+textView.textParser = parser;
+```
+  
 ### Debug
-
-    // Set a shared debug option to show text layout result.
-    YYTextDebugOption *debugOptions = [YYTextDebugOption new];
-    debugOptions.baselineColor = [UIColor redColor];
-    debugOptions.CTFrameBorderColor = [UIColor redColor];
-    debugOptions.CTLineFillColor = [UIColor colorWithRed:0.000 green:0.463 blue:1.000 alpha:0.180];
-    debugOptions.CGGlyphBorderColor = [UIColor colorWithRed:1.000 green:0.524 blue:0.000 alpha:0.200];
-    [YYTextDebugOption setSharedDebugOption:debugOptions];
-
+```objc
+// Set a shared debug option to show text layout result.
+YYTextDebugOption *debugOptions = [YYTextDebugOption new];
+debugOptions.baselineColor = [UIColor redColor];
+debugOptions.CTFrameBorderColor = [UIColor redColor];
+debugOptions.CTLineFillColor = [UIColor colorWithRed:0.000 green:0.463 blue:1.000 alpha:0.180];
+debugOptions.CGGlyphBorderColor = [UIColor colorWithRed:1.000 green:0.524 blue:0.000 alpha:0.200];
+[YYTextDebugOption setSharedDebugOption:debugOptions];
+```
 
 ### More examples
 See `Demo/YYTextDemo.xcodeproj` for more examples:
@@ -535,7 +540,7 @@ You can also install documentation locally using [appledoc](https://github.com/t
 
 Requirements
 ==============
-This library requires `iOS 6.0+` and `Xcode 7.0+`.
+This library requires `iOS 6.0+` and `Xcode 8.0+`.
 
 
 License
@@ -649,7 +654,7 @@ YYText 和 TextKit 架构对比
   </tbody>
 </table>
 
-###YYText 支持的 CoreText 属性
+### YYText 支持的 CoreText 属性
 <table>
   <thead>
     <tr>
@@ -773,258 +778,262 @@ YYText 和 TextKit 架构对比
 ==============
 
 ### 基本用法
-    // YYLabel (和 UILabel 用法一致)
-    YYLabel *label = [YYLabel new];
-    label.frame = ...
-    label.font = ...
-    label.textColor = ...
-    label.textAlignment = ...
-    label.lineBreakMode = ...
-    label.numberOfLines = ...
-    label.text = ...
-    
-    // YYTextView (和 UITextView 用法一致)
-    YYTextView *textView = [YYTextView new];
-    textView.frame = ...
-    textView.font = ...
-    textView.textColor = ...
-    textView.dataDetectorTypes = ...
-    textView.placeHolderText = ...
-    textView.placeHolderTextColor = ...
-    textView.delegate = ...
+```objc
+// YYLabel (和 UILabel 用法一致)
+YYLabel *label = [YYLabel new];
+label.frame = ...
+label.font = ...
+label.textColor = ...
+label.textAlignment = ...
+label.lineBreakMode = ...
+label.numberOfLines = ...
+label.text = ...
     
+// YYTextView (和 UITextView 用法一致)
+YYTextView *textView = [YYTextView new];
+textView.frame = ...
+textView.font = ...
+textView.textColor = ...
+textView.dataDetectorTypes = ...
+textView.placeHolderText = ...
+textView.placeHolderTextColor = ...
+textView.delegate = ...
+```    
 
 ### 属性文本
+```objc
+// 1. 创建一个属性文本
+NSMutableAttributedString *text = [[NSMutableAttributedString alloc] initWithString:@"Some Text, blabla..."];
     
-    // 1. 创建一个属性文本
-    NSMutableAttributedString *text = [[NSMutableAttributedString alloc] initWithString:@"Some Text, blabla..."];
+// 2. 为文本设置属性
+text.yy_font = [UIFont boldSystemFontOfSize:30];
+text.yy_color = [UIColor blueColor];
+[text yy_setColor:[UIColor redColor] range:NSMakeRange(0, 4)];
+text.yy_lineSpacing = 10;
     
-    // 2. 为文本设置属性
-    text.yy_font = [UIFont boldSystemFontOfSize:30];
-    text.yy_color = [UIColor blueColor];
-    [text yy_setColor:[UIColor redColor] range:NSMakeRange(0, 4)];
-    text.yy_lineSpacing = 10;
-    
-    // 3. 赋值到 YYLabel 或 YYTextView
-    YYLabel *label = [YYLabel new];
-    label.frame = ...
-    label.attributedString = text;
-    
-    YYTextView *textView = [YYTextView new];
-    textView.frame = ...
-    textView.attributedString = text;
+// 3. 赋值到 YYLabel 或 YYTextView
+YYLabel *label = [YYLabel new];
+label.frame = ...
+label.attributedString = text;
     
+YYTextView *textView = [YYTextView new];
+textView.frame = ...
+textView.attributedString = text;
+```   
 
 ### 文本高亮
 
 你可以用一些已经封装好的简便方法来设置文本高亮：
-
-	[text yy_setTextHighlightRange:range
-                            color:[UIColor blueColor]
-                  backgroundColor:[UIColor grayColor]
-                        tapAction:^(UIView *containerView, NSAttributedString *text, NSRange range, CGRect rect){ 
-                            NSLog(@"tap text range:..."); 
-                        }];
-
+```objc
+[text yy_setTextHighlightRange:range
+                       color:[UIColor blueColor]
+             backgroundColor:[UIColor grayColor]
+                   tapAction:^(UIView *containerView, NSAttributedString *text, NSRange range, CGRect rect){ 
+                       NSLog(@"tap text range:..."); 
+                   }];
+```
 或者用更复杂的办法来调节文本高亮的细节：
+```objc
+// 1. 创建一个"高亮"属性，当用户点击了高亮区域的文本时，"高亮"属性会替换掉原本的属性
+YYTextBorder *border = [YYTextBorder borderWithFillColor:[UIColor grayColor] cornerRadius:3];
+   
+YYTextHighlight *highlight = [YYTextHighlight new];
+[highlight setColor:[UIColor whiteColor]];
+[highlight setBackgroundBorder:highlightBorder];
+highlight.tapAction = ^(UIView *containerView, NSAttributedString *text, NSRange range, CGRect rect) {
+ NSLog(@"tap text range:..."); 
+ // 你也可以把事件回调放到 YYLabel 和 YYTextView 来处理。
+};
     
-    // 1. 创建一个"高亮"属性，当用户点击了高亮区域的文本时，"高亮"属性会替换掉原本的属性
-    YYTextBorder *border = [YYTextBorder borderWithFillColor:[UIColor grayColor] cornerRadius:3];
-        
-    YYTextHighlight *highlight = [YYTextHighlight new];
-    [highlight setColor:[UIColor whiteColor]];
-    [highlight setBackgroundBorder:highlightBorder];
-    highlight.tapAction = ^(UIView *containerView, NSAttributedString *text, NSRange range, CGRect rect) {
-      NSLog(@"tap text range:..."); 
-      // 你也可以把事件回调放到 YYLabel 和 YYTextView 来处理。
-    };
-    
-    // 2. 把"高亮"属性设置到某个文本范围
-    [attributedText yy_setTextHighlight:highlight range:highlightRange];
+// 2. 把"高亮"属性设置到某个文本范围
+[attributedText yy_setTextHighlight:highlight range:highlightRange];
     
-    // 3. 把属性文本设置到 YYLabel 或 YYTextView
-    YYLabel *label = ...
-    label.attributedText = attributedText
+// 3. 把属性文本设置到 YYLabel 或 YYTextView
+YYLabel *label = ...
+label.attributedText = attributedText
     
-    YYTextView *textView = ...
-    textView.attributedText = ...
+YYTextView *textView = ...
+textView.attributedText = ...
     
-    // 4. 接受事件回调
-    label.highlightTapAction = ^(UIView *containerView, NSAttributedString *text, NSRange range, CGRect rect) {
-        NSLog(@"tap text range:...");
-    };
-    label.highlightLongPressAction = ^(UIView *containerView, NSAttributedString *text, NSRange range, CGRect rect) {
-        NSLog(@"long press text range:...");
-    };
+// 4. 接受事件回调
+label.highlightTapAction = ^(UIView *containerView, NSAttributedString *text, NSRange range, CGRect rect) {
+   NSLog(@"tap text range:...");
+};
+label.highlightLongPressAction = ^(UIView *containerView, NSAttributedString *text, NSRange range, CGRect rect) {
+   NSLog(@"long press text range:...");
+};
     
-    @UITextViewDelegate
-    - (void)textView:(YYTextView *)textView didTapHighlight:(YYTextHighlight *)highlight inRange:(NSRange)characterRange rect:(CGRect)rect {
-        NSLog(@"tap text range:...");
-    }
-    - (void)textView:(YYTextView *)textView didLongPressHighlight:(YYTextHighlight *)highlight inRange:(NSRange)characterRange rect:(CGRect)rect {
-        NSLog(@"long press text range:...");
-    }
-
+@UITextViewDelegate
+- (void)textView:(YYTextView *)textView didTapHighlight:(YYTextHighlight *)highlight inRange:(NSRange)characterRange rect:(CGRect)rect {
+   NSLog(@"tap text range:...");
+}
+- (void)textView:(YYTextView *)textView didLongPressHighlight:(YYTextHighlight *)highlight inRange:(NSRange)characterRange rect:(CGRect)rect {
+   NSLog(@"long press text range:...");
+}
+```
 
 ### 图文混排
-
-	NSMutableAttributedString *text = [NSMutableAttributedString new];
-	UIFont *font = [UIFont systemFontOfSize:16];
-	NSMutableAttributedString *attachment = nil;
+```objc
+NSMutableAttributedString *text = [NSMutableAttributedString new];
+UIFont *font = [UIFont systemFontOfSize:16];
+NSMutableAttributedString *attachment = nil;
 	
-	// 嵌入 UIImage
-	UIImage *image = [UIImage imageNamed:@"dribbble64_imageio"];
-	attachment = [NSMutableAttributedString yy_attachmentStringWithContent:image contentMode:UIViewContentModeCenter attachmentSize:image.size alignToFont:font alignment:YYTextVerticalAlignmentCenter];
-	[text appendAttributedString: attachment];
+// 嵌入 UIImage
+UIImage *image = [UIImage imageNamed:@"dribbble64_imageio"];
+attachment = [NSMutableAttributedString yy_attachmentStringWithContent:image contentMode:UIViewContentModeCenter attachmentSize:image.size alignToFont:font alignment:YYTextVerticalAlignmentCenter];
+[text appendAttributedString: attachment];
 	
-	// 嵌入 UIView
-	UISwitch *switcher = [UISwitch new];
-    [switcher sizeToFit];
-	attachment = [NSMutableAttributedString yy_attachmentStringWithContent:switcher contentMode:UIViewContentModeBottom attachmentSize:switcher.size alignToFont:font alignment:YYTextVerticalAlignmentCenter];
-	[text appendAttributedString: attachment];
+// 嵌入 UIView
+UISwitch *switcher = [UISwitch new];
+[switcher sizeToFit];
+attachment = [NSMutableAttributedString yy_attachmentStringWithContent:switcher contentMode:UIViewContentModeBottom attachmentSize:switcher.size alignToFont:font alignment:YYTextVerticalAlignmentCenter];
+[text appendAttributedString: attachment];
 	
-	// 嵌入 CALayer
-	CASharpLayer *layer = [CASharpLayer layer];
-	layer.path = ...
-	attachment = [NSMutableAttributedString yy_attachmentStringWithContent:layer contentMode:UIViewContentModeBottom attachmentSize:switcher.size alignToFont:font alignment:YYTextVerticalAlignmentCenter];
-	[text appendAttributedString: attachment];
-
+// 嵌入 CALayer
+CASharpLayer *layer = [CASharpLayer layer];
+layer.path = ...
+attachment = [NSMutableAttributedString yy_attachmentStringWithContent:layer contentMode:UIViewContentModeBottom attachmentSize:switcher.size alignToFont:font alignment:YYTextVerticalAlignmentCenter];
+[text appendAttributedString: attachment];
+```
 
 ### 文本布局计算
+```objc
+NSAttributedString *text = ...
+CGSize size = CGSizeMake(100, CGFLOAT_MAX);
+YYTextLayout *layout = [YYTextLayout layoutWithContainerSize:size text:text];
 	
-	NSAttributedString *text = ...
-	CGSize size = CGSizeMake(100, CGFLOAT_MAX);
-	YYTextLayout *layout = [YYTextLayout layoutWithContainerSize:size text:text];
+// 获取文本显示位置和大小
+layout.textBoundingRect; // get bounding rect
+layout.textBoundingSize; // get bounding size
 	
-	// 获取文本显示位置和大小
-	layout.textBoundingRect; // get bounding rect
-	layout.textBoundingSize; // get bounding size
+ // 查询文本排版结果
+[layout lineIndexForPoint:CGPointMake(10,10)];
+[layout closestLineIndexForPoint:CGPointMake(10,10)];
+[layout closestPositionToPoint:CGPointMake(10,10)];
+[layout textRangeAtPoint:CGPointMake(10,10)];
+[layout rectForRange:[YYTextRange rangeWithRange:NSMakeRange(10,2)]];
+[layout selectionRectsForRange:[YYTextRange rangeWithRange:NSMakeRange(10,2)]];
 	
-	 // 查询文本排版结果
-	[layout lineIndexForPoint:CGPointMake(10,10)];
-	[layout closestLineIndexForPoint:CGPointMake(10,10)];
-	[layout closestPositionToPoint:CGPointMake(10,10)];
-	[layout textRangeAtPoint:CGPointMake(10,10)];
-	[layout rectForRange:[YYTextRange rangeWithRange:NSMakeRange(10,2)]];
-	[layout selectionRectsForRange:[YYTextRange rangeWithRange:NSMakeRange(10,2)]];
-	
-	// 显示文本排版结果
-	YYLabel *label = [YYLabel new];
-	label.size = layout.textBoundingSize;
-	label.textLayout = layout;
-
+// 显示文本排版结果
+YYLabel *label = [YYLabel new];
+label.size = layout.textBoundingSize;
+label.textLayout = layout;
+```
 	
 ### 文本行位置调整
-
-	// 由于中文、英文、Emoji 等字体高度不一致，或者富文本中出现了不同字号的字体，
-	// 可能会造成每行文字的高度不一致。这里可以添加一个修改器来实现固定行高，或者自定义文本行位置。
+```objc
+// 由于中文、英文、Emoji 等字体高度不一致，或者富文本中出现了不同字号的字体，
+// 可能会造成每行文字的高度不一致。这里可以添加一个修改器来实现固定行高，或者自定义文本行位置。
   
-	// 简单的方法:
-	// 1. 创建一个文本行位置修改类，实现 `YYTextLinePositionModifier` 协议。
-	// 2. 设置到 Label 或 TextView。
+// 简单的方法:
+// 1. 创建一个文本行位置修改类，实现 `YYTextLinePositionModifier` 协议。
+// 2. 设置到 Label 或 TextView。
 	
-	YYTextLinePositionSimpleModifier *modifier = [YYTextLinePositionSimpleModifier new];
-	modifier.fixedLineHeight = 24;
+YYTextLinePositionSimpleModifier *modifier = [YYTextLinePositionSimpleModifier new];
+modifier.fixedLineHeight = 24;
 	
-	YYLabel *label = [YYLabel new];
-	label.linePositionModifier = modifier;
+YYLabel *label = [YYLabel new];
+label.linePositionModifier = modifier;
 	
-	// 完全控制:
-	YYTextLinePositionSimpleModifier *modifier = [YYTextLinePositionSimpleModifier new];
-	modifier.fixedLineHeight = 24;
+// 完全控制:
+YYTextLinePositionSimpleModifier *modifier = [YYTextLinePositionSimpleModifier new];
+modifier.fixedLineHeight = 24;
 	
-	YYTextContainer *container = [YYTextContainer new];
-	container.size = CGSizeMake(100, CGFLOAT_MAX);
-	container.linePositionModifier = modifier;
+YYTextContainer *container = [YYTextContainer new];
+container.size = CGSizeMake(100, CGFLOAT_MAX);
+container.linePositionModifier = modifier;
 	
-	YYTextLayout *layout = [YYTextLayout layoutWithContainer:container text:text];
-	YYLabel *label = [YYLabel new];
-	label.size = layout.textBoundingSize;
-	label.textLayout = layout;
-
+YYTextLayout *layout = [YYTextLayout layoutWithContainer:container text:text];
+YYLabel *label = [YYLabel new];
+label.size = layout.textBoundingSize;
+label.textLayout = layout;
+```
 
 ### 异步排版和渲染
+```objc  
+// 如果你在显示字符串时有性能问题，可以这样开启异步模式：
+YYLabel *label = ...
+label.displaysAsynchronously = YES;
     
-    // 如果你在显示字符串时有性能问题，可以这样开启异步模式：
-    YYLabel *label = ...
-    label.displaysAsynchronously = YES;
-    
-    // 如果需要获得最高的性能，你可以在后台线程用 `YYTextLayout` 进行预排版： 
-    YYLabel *label = [YYLabel new];
-    label.displaysAsynchronously = YES; //开启异步绘制
-    label.ignoreCommonProperties = YES; //忽略除了 textLayout 之外的其他属性
+// 如果需要获得最高的性能，你可以在后台线程用 `YYTextLayout` 进行预排版： 
+YYLabel *label = [YYLabel new];
+label.displaysAsynchronously = YES; //开启异步绘制
+label.ignoreCommonProperties = YES; //忽略除了 textLayout 之外的其他属性
     
-    dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
-        // 创建属性字符串
-        NSMutableAttributedString *text = [[NSMutableAttributedString alloc] initWithString:@"Some Text"];
-        text.yy_font = [UIFont systemFontOfSize:16];
-        text.yy_color = [UIColor grayColor];
-        [text yy_setColor:[UIColor redColor] range:NSMakeRange(0, 4)];
+dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
+   // 创建属性字符串
+   NSMutableAttributedString *text = [[NSMutableAttributedString alloc] initWithString:@"Some Text"];
+   text.yy_font = [UIFont systemFontOfSize:16];
+   text.yy_color = [UIColor grayColor];
+   [text yy_setColor:[UIColor redColor] range:NSMakeRange(0, 4)];
  
-        // 创建文本容器
-        YYTextContainer *container = [YYTextContainer new];
-        container.size = CGSizeMake(100, CGFLOAT_MAX);
-        container.maximumNumberOfRows = 0;
-        
-        // 生成排版结果
-        YYTextLayout *layout = [YYTextLayout layoutWithContainer:container text:text];
-        
-        dispatch_async(dispatch_get_main_queue(), ^{
-            label.size = layout.textBoundingSize;
-            label.textLayout = layout;
-        });
-    });
-
+   // 创建文本容器
+   YYTextContainer *container = [YYTextContainer new];
+   container.size = CGSizeMake(100, CGFLOAT_MAX);
+   container.maximumNumberOfRows = 0;
+   
+   // 生成排版结果
+   YYTextLayout *layout = [YYTextLayout layoutWithContainer:container text:text];
+   
+   dispatch_async(dispatch_get_main_queue(), ^{
+       label.size = layout.textBoundingSize;
+       label.textLayout = layout;
+   });
+});
+```
 
 ### 文本容器控制
-
-	YYLabel *label = ...
-	label.textContainerPath = [UIBezierPath bezierPathWith...];
-	label.exclusionPaths = 	@[[UIBezierPath bezierPathWith...];,...];
-	label.textContainerInset = UIEdgeInsetsMake(...);
-	label.verticalForm = YES/NO;
-    
-    YYTextView *textView = ...
-	textView.exclusionPaths = 	@[[UIBezierPath bezierPathWith...];,...];
-	textView.textContainerInset = UIEdgeInsetsMake(...);
-	textView.verticalForm = YES/NO;
+```objc
+YYLabel *label = ...
+label.textContainerPath = [UIBezierPath bezierPathWith...];
+label.exclusionPaths = 	@[[UIBezierPath bezierPathWith...];,...];
+label.textContainerInset = UIEdgeInsetsMake(...);
+label.verticalForm = YES/NO;
     
+YYTextView *textView = ...
+textView.exclusionPaths = 	@[[UIBezierPath bezierPathWith...];,...];
+textView.textContainerInset = UIEdgeInsetsMake(...);
+textView.verticalForm = YES/NO;
+```    
 
 ### 文本解析
-	// 1. 创建一个解析器
+```objc
+// 1. 创建一个解析器
 	
-	// 内置简单的表情解析
-    YYTextSimpleEmoticonParser *parser = [YYTextSimpleEmoticonParser new];
-    NSMutableDictionary *mapper = [NSMutableDictionary new];
-    mapper[@":smile:"] = [UIImage imageNamed:@"smile.png"];
-    mapper[@":cool:"] = [UIImage imageNamed:@"cool.png"];
-    mapper[@":cry:"] = [UIImage imageNamed:@"cry.png"];
-    mapper[@":wink:"] = [UIImage imageNamed:@"wink.png"];
-    parser.emoticonMapper = mapper;
+// 内置简单的表情解析
+YYTextSimpleEmoticonParser *parser = [YYTextSimpleEmoticonParser new];
+NSMutableDictionary *mapper = [NSMutableDictionary new];
+mapper[@":smile:"] = [UIImage imageNamed:@"smile.png"];
+mapper[@":cool:"] = [UIImage imageNamed:@"cool.png"];
+mapper[@":cry:"] = [UIImage imageNamed:@"cry.png"];
+mapper[@":wink:"] = [UIImage imageNamed:@"wink.png"];
+parser.emoticonMapper = mapper;
 	
-	// 内置简单的 markdown 解析
-	YYTextSimpleMarkdownParser *parser = [YYTextSimpleMarkdownParser new];
-    [parser setColorWithDarkTheme];
+// 内置简单的 markdown 解析
+YYTextSimpleMarkdownParser *parser = [YYTextSimpleMarkdownParser new];
+[parser setColorWithDarkTheme];
     
-    // 实现 `YYTextParser` 协议的自定义解析器
-    MyCustomParser *parser = ... 
+// 实现 `YYTextParser` 协议的自定义解析器
+MyCustomParser *parser = ... 
     
-    // 2. 把解析器添加到 YYLabel 或 YYTextView
-    YYLabel *label = ...
-    label.textParser = parser;
+// 2. 把解析器添加到 YYLabel 或 YYTextView
+YYLabel *label = ...
+label.textParser = parser;
     
-    YYTextView *textView = ...
-    textView.textParser = parser;
+YYTextView *textView = ...
+textView.textParser = parser;
+```
 
 ### Debug
-
-    // 设置一个全局的 debug option 来显示排版结果。
-    YYTextDebugOption *debugOptions = [YYTextDebugOption new];
-    debugOptions.baselineColor = [UIColor redColor];
-    debugOptions.CTFrameBorderColor = [UIColor redColor];
-    debugOptions.CTLineFillColor = [UIColor colorWithRed:0.000 green:0.463 blue:1.000 alpha:0.180];
-    debugOptions.CGGlyphBorderColor = [UIColor colorWithRed:1.000 green:0.524 blue:0.000 alpha:0.200];
-    [YYTextDebugOption setSharedDebugOption:debugOptions];
+```objc
+// 设置一个全局的 debug option 来显示排版结果。
+YYTextDebugOption *debugOptions = [YYTextDebugOption new];
+debugOptions.baselineColor = [UIColor redColor];
+debugOptions.CTFrameBorderColor = [UIColor redColor];
+debugOptions.CTLineFillColor = [UIColor colorWithRed:0.000 green:0.463 blue:1.000 alpha:0.180];
+debugOptions.CGGlyphBorderColor = [UIColor colorWithRed:1.000 green:0.524 blue:0.000 alpha:0.200];
+[YYTextDebugOption setSharedDebugOption:debugOptions];
+```
 
 ### 更多示例
 查看演示工程 `Demo/YYTextDemo.xcodeproj`:
@@ -1078,7 +1087,7 @@ YYText 和 TextKit 架构对比
 
 系统要求
 ==============
-该项目最低支持 `iOS 6.0` 和 `Xcode 7.0`。
+该项目最低支持 `iOS 6.0` 和 `Xcode 8.0`。
 
 
 已知问题