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Added Support for additional tags #30

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Added Support for additional tags #30

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f99b8eb
Added support for code and samp tags using MenloRegular as the defaul…
Jan 9, 2018
b0962f0
Added support for additional tags: mark, h5, h3, h1, sup, sub.
Jan 9, 2018
65aec88
Added <del> and <s> tags to strike check.
Jan 9, 2018
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4 changes: 4 additions & 0 deletions HTMLToAttributedString.xcodeproj/project.pbxproj
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,7 @@
objects = {

/* Begin PBXBuildFile section */
7D12230B20048D4600E39A2C /* CoreText.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 7D12230A20048D4600E39A2C /* CoreText.framework */; };
AA9A4B81166FE7A80006F4EE /* UIKit.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = AA9A4B80166FE7A80006F4EE /* UIKit.framework */; };
AA9A4B83166FE7A80006F4EE /* Foundation.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = AA9A4B82166FE7A80006F4EE /* Foundation.framework */; };
AA9A4B85166FE7A80006F4EE /* CoreGraphics.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = AA9A4B84166FE7A80006F4EE /* CoreGraphics.framework */; };
Expand All @@ -24,6 +25,7 @@
/* End PBXBuildFile section */

/* Begin PBXFileReference section */
7D12230A20048D4600E39A2C /* CoreText.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = CoreText.framework; path = System/Library/Frameworks/CoreText.framework; sourceTree = SDKROOT; };
AA9A4B7C166FE7A80006F4EE /* HTMLToAttributedString.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = HTMLToAttributedString.app; sourceTree = BUILT_PRODUCTS_DIR; };
AA9A4B80166FE7A80006F4EE /* UIKit.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = UIKit.framework; path = System/Library/Frameworks/UIKit.framework; sourceTree = SDKROOT; };
AA9A4B82166FE7A80006F4EE /* Foundation.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = Foundation.framework; path = System/Library/Frameworks/Foundation.framework; sourceTree = SDKROOT; };
Expand Down Expand Up @@ -51,6 +53,7 @@
isa = PBXFrameworksBuildPhase;
buildActionMask = 2147483647;
files = (
7D12230B20048D4600E39A2C /* CoreText.framework in Frameworks */,
AA9A4BA7166FF1AA0006F4EE /* libxml2.dylib in Frameworks */,
AA9A4B81166FE7A80006F4EE /* UIKit.framework in Frameworks */,
AA9A4B83166FE7A80006F4EE /* Foundation.framework in Frameworks */,
Expand Down Expand Up @@ -82,6 +85,7 @@
AA9A4B7F166FE7A80006F4EE /* Frameworks */ = {
isa = PBXGroup;
children = (
7D12230A20048D4600E39A2C /* CoreText.framework */,
AA9A4B80166FE7A80006F4EE /* UIKit.framework */,
AA9A4B82166FE7A80006F4EE /* Foundation.framework */,
AA9A4B84166FE7A80006F4EE /* CoreGraphics.framework */,
Expand Down
6 changes: 3 additions & 3 deletions HTMLToAttributedString/ViewController.m
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Original file line number Diff line number Diff line change
Expand Up @@ -23,9 +23,9 @@ - (void)viewDidLoad
// Do any additional setup after loading the view, typically from a nib.


NSAttributedString *attrString = [NSAttributedString attributedStringFromHTML:@"<font face=\"Avenir-Heavy\" color=\"#FF0000\">This</font> <shadow>is</shadow> <b>Happy bold, <u>underlined</u>, <stroke width=\"2.0\" color=\"#00FF00\">awesomeness </stroke><a href=\"https://www.google.com\">link</a>!</b> <br/> <i>And some italic on the next line.</i><img src=\"car.png\" width=\"50\" height=\"50\" />"
normalFont:[UIFont systemFontOfSize:12]
boldFont:[UIFont boldSystemFontOfSize:12]
NSAttributedString *attrString = [NSAttributedString attributedStringFromHTML:@"<h1>Heading1</h1><br/><h3>Heading2</h3><br/><h5>Heading3</h5><br/><sup>superscript</sup>normal<sub>subscript</sub><br/><font face=\"Avenir-Heavy\" color=\"#FF0000\">This</font> <shadow>is</shadow> <b>Happy bold, <u>underlined</u>, <stroke width=\"2.0\" color=\"#00FF00\">awesomeness </stroke><a href=\"https://www.google.com\">link</a>!</b> <br/> <i>And some italic on the next line.</i><img src=\"car.png\" width=\"50\" height=\"50\" /> <br/> <br/> <samp>printf(\"Hello World!\")</samp><br/>"
normalFont:[UIFont systemFontOfSize:12.0]
boldFont:[UIFont boldSystemFontOfSize:12.0]
italicFont:[UIFont italicSystemFontOfSize:12.0]
];
self.label.attributedText = attrString;
Expand Down
15 changes: 14 additions & 1 deletion NSAttributedString+DDHTML/NSAttributedString+DDHTML.h
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Original file line number Diff line number Diff line change
Expand Up @@ -67,6 +67,19 @@ NS_ASSUME_NONNULL_BEGIN
*/
+ (NSAttributedString *)attributedStringFromHTML:(NSString *)htmlString normalFont:(UIFont *)normalFont boldFont:(UIFont *)boldFont italicFont:(UIFont *)italicFont;

/**
* Generates an attributed string from HTML.
*
* @param htmlString HTML String
* @param normalFont Font to use for general text
* @param boldFont Font to use for \<b\> and \<strong\> tags
* @param italicFont Font to use for \<i\> and \<em\> tags
* @param fixedFont Font to use for \<code\> and \<samp\> tags
*
* @return Attributed string
*/
+ (NSAttributedString *)attributedStringFromHTML:(NSString *)htmlString normalFont:(UIFont *)normalFont boldFont:(UIFont *)boldFont italicFont:(UIFont *)italicFont fixedFont:(UIFont *)fixedFont;

/**
* Generates an attributed string from HTML.
*
Expand All @@ -78,7 +91,7 @@ NS_ASSUME_NONNULL_BEGIN
*
* @return Attributed string
*/
+ (NSAttributedString *)attributedStringFromHTML:(NSString *)htmlString normalFont:(UIFont *)normalFont boldFont:(UIFont *)boldFont italicFont:(UIFont *)italicFont imageMap:(NSDictionary<NSString *, UIImage *> *)imageMap;
+ (NSAttributedString *)attributedStringFromHTML:(NSString *)htmlString normalFont:(UIFont *)normalFont boldFont:(UIFont *)boldFont italicFont:(UIFont *)italicFont fixedFont:(UIFont *)fixedFont imageMap:(NSDictionary<NSString *, UIImage *> *)imageMap;

@end

Expand Down
76 changes: 70 additions & 6 deletions NSAttributedString+DDHTML/NSAttributedString+DDHTML.m
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Original file line number Diff line number Diff line change
Expand Up @@ -29,6 +29,7 @@
//

#import "NSAttributedString+DDHTML.h"
#import <CoreText/CTStringAttributes.h>
#include <libxml/HTMLparser.h>

@implementation NSAttributedString (DDHTML)
Expand All @@ -40,7 +41,8 @@ + (NSAttributedString *)attributedStringFromHTML:(NSString *)htmlString
return [self attributedStringFromHTML:htmlString
normalFont:preferredBodyFont
boldFont:[UIFont boldSystemFontOfSize:preferredBodyFont.pointSize]
italicFont:[UIFont italicSystemFontOfSize:preferredBodyFont.pointSize]];
italicFont:[UIFont italicSystemFontOfSize:preferredBodyFont.pointSize]
fixedFont:[UIFont fontWithName:@"Menlo-Regular" size:preferredBodyFont.pointSize]];
}

+ (NSAttributedString *)attributedStringFromHTML:(NSString *)htmlString boldFont:(UIFont *)boldFont italicFont:(UIFont *)italicFont
Expand All @@ -56,10 +58,22 @@ + (NSAttributedString *)attributedStringFromHTML:(NSString *)htmlString normalFo
normalFont:normalFont
boldFont:boldFont
italicFont:italicFont
fixedFont:[UIFont fontWithName:@"Menlo-Regular" size:normalFont.pointSize]
imageMap:@{}];
}

+ (NSAttributedString *)attributedStringFromHTML:(NSString *)htmlString normalFont:(UIFont *)normalFont boldFont:(UIFont *)boldFont italicFont:(UIFont *)italicFont imageMap:(NSDictionary<NSString *, UIImage *> *)imageMap
+ (NSAttributedString *)attributedStringFromHTML:(NSString *)htmlString normalFont:(UIFont *)normalFont boldFont:(UIFont *)boldFont italicFont:(UIFont *)italicFont fixedFont:(UIFont *)fixedFont
{
return [self attributedStringFromHTML:htmlString
normalFont:normalFont
boldFont:boldFont
italicFont:italicFont
fixedFont:fixedFont
imageMap:@{}];
}


+ (NSAttributedString *)attributedStringFromHTML:(NSString *)htmlString normalFont:(UIFont *)normalFont boldFont:(UIFont *)boldFont italicFont:(UIFont *)italicFont fixedFont:(UIFont *)fixedFont imageMap:(NSDictionary<NSString *, UIImage *> *)imageMap
{
// Parse HTML string as XML document using UTF-8 encoding
NSData *documentData = [htmlString dataUsingEncoding:NSUTF8StringEncoding];
Expand All @@ -73,7 +87,7 @@ + (NSAttributedString *)attributedStringFromHTML:(NSString *)htmlString normalFo

xmlNodePtr currentNode = document->children;
while (currentNode != NULL) {
NSAttributedString *childString = [self attributedStringFromNode:currentNode normalFont:normalFont boldFont:boldFont italicFont:italicFont imageMap:imageMap];
NSAttributedString *childString = [self attributedStringFromNode:currentNode normalFont:normalFont boldFont:boldFont italicFont:italicFont fixedFont:fixedFont imageMap:imageMap];
[finalAttributedString appendAttributedString:childString];

currentNode = currentNode->next;
Expand All @@ -84,7 +98,12 @@ + (NSAttributedString *)attributedStringFromHTML:(NSString *)htmlString normalFo
return finalAttributedString;
}

+ (NSAttributedString *)attributedStringFromNode:(xmlNodePtr)xmlNode normalFont:(UIFont *)normalFont boldFont:(UIFont *)boldFont italicFont:(UIFont *)italicFont imageMap:(NSDictionary<NSString *, UIImage *> *)imageMap
+ (NSAttributedString *)attributedStringFromNode:(xmlNodePtr)xmlNode
normalFont:(UIFont *)normalFont
boldFont:(UIFont *)boldFont
italicFont:(UIFont *)italicFont
fixedFont:(UIFont *)fixedFont
imageMap:(NSDictionary<NSString *, UIImage *> *)imageMap
{
NSMutableAttributedString *nodeAttributedString = [[NSMutableAttributedString alloc] init];

Expand All @@ -96,7 +115,7 @@ + (NSAttributedString *)attributedStringFromNode:(xmlNodePtr)xmlNode normalFont:
// Handle children
xmlNodePtr currentNode = xmlNode->children;
while (currentNode != NULL) {
NSAttributedString *childString = [self attributedStringFromNode:currentNode normalFont:normalFont boldFont:boldFont italicFont:italicFont imageMap:imageMap];
NSAttributedString *childString = [self attributedStringFromNode:currentNode normalFont:normalFont boldFont:boldFont italicFont:italicFont fixedFont:fixedFont imageMap:imageMap];
[nodeAttributedString appendAttributedString:childString];

currentNode = currentNode->next;
Expand Down Expand Up @@ -124,6 +143,49 @@ + (NSAttributedString *)attributedStringFromNode:(xmlNodePtr)xmlNode normalFont:
}
}

// Mark tag
else if (strncmp("mark", (const char *)xmlNode->name, strlen((const char *)xmlNode->name)) == 0) {
[nodeAttributedString addAttribute:NSBackgroundColorAttributeName value:[UIColor yellowColor] range:nodeAttributedStringRange];
}

// h5 tag
else if (strncmp("h5", (const char *)xmlNode->name, strlen((const char *)xmlNode->name)) == 0) {
UIFont *headingFont = [boldFont fontWithSize:(boldFont.pointSize+3.0)];
[nodeAttributedString addAttribute:NSFontAttributeName value:headingFont range:nodeAttributedStringRange];
}

// h3 tag
else if (strncmp("h3", (const char *)xmlNode->name, strlen((const char *)xmlNode->name)) == 0) {
UIFont *headingFont = [boldFont fontWithSize:(boldFont.pointSize+6.0)];
[nodeAttributedString addAttribute:NSFontAttributeName value:headingFont range:nodeAttributedStringRange];
}
// h1 tag
else if (strncmp("h1", (const char *)xmlNode->name, strlen((const char *)xmlNode->name)) == 0) {
UIFont *headingFont = [boldFont fontWithSize:(boldFont.pointSize+9.0)];
[nodeAttributedString addAttribute:NSFontAttributeName value:headingFont range:nodeAttributedStringRange];
}

// Superscript tag
else if (strncmp("sup", (const char *)xmlNode->name, strlen((const char *)xmlNode->name)) == 0) {
[nodeAttributedString addAttribute:(NSString*)kCTSuperscriptAttributeName value:@"1" range:nodeAttributedStringRange];
}

// Subscript tag
else if (strncmp("sub", (const char *)xmlNode->name, strlen((const char *)xmlNode->name)) == 0) {
[nodeAttributedString addAttribute:(NSString*)kCTSuperscriptAttributeName value:@"-1" range:nodeAttributedStringRange];
}


// Code/Samp tags
if (strncmp("code", (const char *)xmlNode->name, strlen((const char *)xmlNode->name)) == 0 ||
strncmp("samp", (const char *)xmlNode->name, strlen((const char *)xmlNode->name)) == 0) {
if (fixedFont) {
UIColor *backgroundColorRef = [UIColor colorWithRed:236.0f/255.0f green:222.0f/255.0f blue:180.0f/255.0f alpha:1.0f];
[nodeAttributedString addAttribute:NSFontAttributeName value:fixedFont range:nodeAttributedStringRange];
[nodeAttributedString addAttribute:NSBackgroundColorAttributeName value:backgroundColorRef range:nodeAttributedStringRange];
}
}

// Bold Tag
if (strncmp("b", (const char *)xmlNode->name, strlen((const char *)xmlNode->name)) == 0 ||
strncmp("strong", (const char *)xmlNode->name, strlen((const char *)xmlNode->name)) == 0) {
Expand All @@ -146,7 +208,9 @@ + (NSAttributedString *)attributedStringFromNode:(xmlNodePtr)xmlNode normalFont:
}

// Stike Tag
else if (strncmp("strike", (const char *)xmlNode->name, strlen((const char *)xmlNode->name)) == 0) {
else if (strncmp("strike", (const char *)xmlNode->name, strlen((const char *)xmlNode->name)) == 0 ||
strncmp("del", (const char *)xmlNode->name, strlen((const char *)xmlNode->name)) == 0 ||
strncmp("s", (const char *)xmlNode->name, strlen((const char *)xmlNode->name)) == 0) {
[nodeAttributedString addAttribute:NSStrikethroughStyleAttributeName value:@(YES) range:nodeAttributedStringRange];
}

Expand Down