OPAttributeString

Example

To run the example project, clone the repo, and run pod install from the Example directory first.

Requirements

iOS 8.0 or later
Xcode 7.3 or later

Getting Started

OPAttributeString is available through CocoaPods. To install it, simply add the following line to your Podfile:

pod 'OPAttributeString'

How To Use

Objective-C

NSString *despicableMe = @"I know someone whoabccan fix that for you.";      
self.someLabel.attributedText = [despicableMe make_Attribute:^(OPAttribute *make) {
    make.font([UIFont fontWithName:@"Courier New" size:12]);
    make.textColor([UIColor redColor]);
    make.backgroundColor([UIColor greenColor]);
}];

or you can write like this.

NSString *despicableMe = @"I know someone whoabccan fix that for you.";      
self.someLabel.attributedText = [despicableMe make_Attribute:^(OPAttribute *make) {
    make.font([UIFont fontWithName:@"Courier New" size:12])
    .textColor([UIColor redColor])
    .backgroundColor([UIColor greenColor]);
}];

or this

NSString *despicableMe = @"I know someone whoabccan fix that for you.";
self.someLabel.attributedText = despicableMe.
font([UIFont fontWithName:@"Courier New" size:12])
.textColor([UIColor redColor])
.backgroundColor([UIColor greenColor])
.string;

now you can see it.

But most of the time , you want set a part attribute of string. there is some API can use.

from(index)

If the index parameter exceeds the string range, the correction processing rules are as follows:

(index < 0 || index > string.length) ? 0 : index;

NSString *despicableMe = @"I know someone whoabccan fix that for you.";      
self.someLabel.attributedText = [despicableMe make_Attribute:^(OPAttribute *make) {
    make.from(0).font([UIFont systemFontOfSize:10]);
}];

to(index)

the correction processing rules are as follows:

(index < 0 || index > string.length) ? string.length : index;

NSString *despicableMe = @"I know someone whoabccan fix that for you.";      
self.someLabel.attributedText = [despicableMe make_Attribute:^(OPAttribute *make) {
    make.font([UIFont systemFontOfSize:10]);
    make.to(5).font([UIFont systemFontOfSize:17]);
}];

fromTo(location,length)

the correction processing rules are as follows

location rules: same with from(index).

length rules: same with to(index).

NSString *despicableMe = @"I know someone whoabccan fix that for you.";      
self.someLabel.attributedText = [despicableMe make_Attribute:^(OPAttribute *make) {
    make.font([UIFont systemFontOfSize:10]);
    make.to(5).font([UIFont systemFontOfSize:17]);
    make.fromTo(8,12).backgroundColor([UIColor orangeColor]);
}];

range(NSRange)

use it like fromTo(location,length)

NSString *despicableMe = @"I know someone whoabccan fix that for you.";      
self.someLabel.attributedText = [despicableMe make_Attribute:^(OPAttribute *make) {
    make.font([UIFont systemFontOfSize:10]);
    make.to(5).font([UIFont systemFontOfSize:17]);
    make.range(NSMakeRange(0,10)).backgroundColor([UIColor orangeColor]);
}];

the correction processing rules are as follows

NS_INLINE BOOL rangeCheck(NSRange range, NSRange rangeContainer) {
    if(range.location < 0 || rangeContainer.location < 0 || rangeContainer.location > range.length) return false;
    return range.location <= rangeContainer.location && range.length >= rangeContainer.length;
}

rangeOf(somestring)

Use this function to find the range of characters or strings.

NSString *despicableMe = @"I know someone whoabccan fix that for you.";      
self.someLabel.attributedText = [despicableMe make_Attribute:^(OPAttribute *make) {
    make.rangeOf(@"fix").strokeColor([UIColor blueColor]).strokeWidth(3);
}];

insert(...)

this is a multi-parameter function, roughly as follows:

first case: insert a string to source string

NSString *despicableMe = @"I know someone whoabccan fix that for you.";
self.someLabel.attributedText = [despicableMe make_Attribute:^(OPAttribute *make) {
    // default insert a string to the end of source string
    make.insert(@"\n");
    // or you can specified a string and index to insert
    // the index parameter has rules same way to(index) used
    // so -1 means 'ooops' will be inserted to the end
    make.insert(@"ooops",-1);
}];

second case: insert a NSAttributedString to source string

NSMutableAttributedString *string = [[NSMutableAttributedString alloc] initWithString:@"e"];
[string addAttribute:NSBackgroundColorAttributeName value:[UIColor redColor] range:NSMakeRange(0, 1)];

NSString *despicableMe = @"I know someone whoabccan fix that for you.";

self.someLabel.attributedText = [despicableMe make_Attribute:^(OPAttribute *make) {
    make.insert(string);
    make.insert(string,-1);
}];

let us change the diffrent index paramters.

make.insert(string,0);
make.insert(string,-1);

then will display like this

third case: insert a UIImage to source string

NSString *despicableMe = @"I know someone whoabccan fix that for you.";
            
self.demoLabel.attributedText = [despicableMe make_Attribute:^(OPAttribute *make) {
    UIImage *img = [UIImage imageNamed:@"old_sj"];
    make.insert(img, 0, CGRectMake(0, 0, 18, 18), AttachmentAlignmentNormal);
}];

regex pattern

NSString *despicableMe = @"I know someone whoabccan fix that for you.";
            
self.demoLabel.attributedText = [despicableMe make_Attribute:^(OPAttribute *make) {
    make.pattern(@"o").strokeColor([UIColor redColor]).strokeWidth(-5);
}];

remove some char or string from source string, you can do it like by this way.

NSString *despicableMe = @"I know someone whoabccan fix that for you.";
            
self.demoLabel.attributedText = [despicableMe make_Attribute:^(OPAttribute *make) {
    // remove all char 'o' from source string.
    // defalut matching hole source string.
    make.removeE(@[@"o"]);
    // specified range
    make.removeE(@[@"o"],, NSMakeRange(0, 10));
    // mult-matching and specified range.
    make.removeE(@[@"e",@"o"], NSMakeRange(0, 10));
}];

replace some char or string from source string, you can do it like by this way. range rule: rangeCheck c function

NSString *despicableMe = @"I know someone whoabccan fix that for you.";
            
self.demoLabel.attributedText = [despicableMe make_Attribute:^(OPAttribute *make) {
    // matching the hole source string
    make.replace(@"o",@"O");
    // matching the hole source string in range
    make.replace(@"o",@"O",NSMakeRange(0, 8));
    // mult-matching the hole string with dictionary
    // dictionary's key will matching.
    // the dictionary key's matching value will be replaced by dictionary's value.
    // defalut matching hole source string.
    make.replaceE(@[@{@"e" : @"o"},@{@"y" : @"Y"}]);
    // in the same way ... in range
    make.replaceE(@[@{@"o" : @"0"},@{@"n" : @"u"}],NSMakeRange(0, 8));
}];