I have a JSON file like this. I have to make bold part of string which is shown in JSON. How can I make parse this JSON?
It looks to me like you would first want to use NSJSONSerialization (Or just JSONSerialization in Swift 3) to convert your JSON to an object graph. Once you've done that, you should be able to navigate to the interestLabel keys in your data and fetch those strings.
You'll then need to parse those tagged strings somehow. If the only thing you need to do is to find <b> and </b> bold tags, and no other tags will ever appear in your data then you could probably write your own code. If the strings might have other tags and/or more complex HTML structure then you might want to use an XML/HTML parser. I suggest taking a look at this tutorial: https://www.raywenderlich.com/14172/how-to-parse-html-on-ios
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I am knocking together a quick debugging view of a backend, as a small set of admin HTML pages (driven by angulardart, but not sure that is critical).
I get back from my XHR call a complex JSON object. I want to see that on the HTML page formatted nicely. It doesn't have to be a great implementation, as its just a debug ui, but the goal is to format the object instead of having it be one long string with no newlines.
I looked at trying to pretty print JSON in dart then putting that inside <pre></pre> tags, as well as just dumping the dart Map object to string (again, inside or not inside <pre></pre> tags. But not getting to where I want.
Even searched pub for something similar, such as a syntax highlighter that would output html, but didn't find something obvious.
Any recommendations?
I think what you're looking for is:
Format your JSON so it's readable
Have syntax highlight
For 1 - This can be done with JsonEncoder with indent
For 2 - You can use the JS lib called HighlightJs pretty easily by appending your formatted json into a marked-up div. (See highlightjs' doc to see what I mean)
I am writing an iOS app that downloads some data from a server that's not under my control. I am not using custom data detectors. The strings in the returned JSON still contain their HTML url tags, and I want to remove them because I want to display the strings in a UITextView, and these kind of strings
<strong>Instagram</strong> / <strong>Behance</strong>
<strong>Live Now</strong>
What I really want is this:
Instagram Behance
Live Now
What is the best way to go about this?
Should I strip the url tags from the text using regex?
Would I lose the link "descriptions" (in the above example, "Instagram" and "Behance") when I do that?
Would this be way easier using a UIWebView?
If this would be too hard/impossible, it'd be okay to only have the urls, without their descriptions.
Thank you!
Should I strip the url tags from the text using regex?
No. HTML is too complex to be properly parsed using a RegEx. You'll need an XML parser.
Would I lose the link "descriptions" (in the above example, "Instagram" and "Behance") when I do that?
You wouldn't have to using an XML parser. Using a RegEx, you might, especially if you can't control exactly what's returned.
Would this be way easier using a UIWebView?
Yep. That's what I would do, unless you have a good reason not to.
I have an XML document which I want to parse using NSXMLParser. One of the tags it can contain is <html>, and in my parsed representation I want the contents of that tag, verbatim. However, when I parse the document, my delegate methods are called for the start, end and contents of each tag inside the html tag.
I can't get the provider of the document to add CDATA tags; nor can I use something other than NSXMLParser to parse the document.
Is there a way for me to tell the parser to treat the contents of HTML tags as CDATA and to leave them unparsed, even if they contain other tags?
That's too bad that the owner of the XML feed won't fix it because, depending on the HTML, you may end up with a malformed XML feed. If it really is an XML document, they definitely should wrap it in a CDATA or replace all the < with < and all the > with >.
Frankly, if all you need is the HTML, and all you have is XML tag that contains the HTML without the CDATA or appropriate character replacement, I might not be inclined to try to run it through NSXMLParser at all (because the successful parsing is contingent on the nature of the HTML included). I'd use a NSScanner or NSRegularExpression to extract all of the text between the XML's opening and closing tag that wrap your HTML.
Or, if you really want to use NSXMLParser (because there's other stuff in addition to the HTML that you need), then manually alter the NSData, wrapping the HTML in a CDATA yourself.
If, on the other hand, the document you're trying to parse really isn't XML, but rather is just HTML, then of course, you shouldn't be parsing it with an XML parser. You should be using a HTML parser, like HPPLE, as described in Galloway's article, How to Parse HTML on iOS on the Ray Wendlich site.
I am getting text from a feed that has alot of characters like:
Insignia™ 2.0 Stereo Computer Speaker System (2-Piece) - Black
4th-Generation Apple® iPod® touch
Is there an easy way to get rid of these, or do I have to anticipate which characters I want to delete and use the delete method to remove them? Also, when I try to remove
&
with
str.delete("&")
It leaves behind "amp;" Is there a better way to delete this type of character? Do I need to re-encode the text?
String#delete is certainly not what you want, as it works on characters, not the string as a whole.
Try
str.gsub /&/, ""
You may also want to try replacing the & with a literal ampersand, such as:
str.gsub /&/, "&"
If this is closer to what you really want, you may get the best results unescaping the HTML string. If so try this:
CGI::unescapeHTML(str)
Details of the unescapeHTML method are here.
If you are getting data from a 'feed', aka RSS XML, then you should be using an XML parser like Nokogiri to process the XML. This will automatically unescape HTML entities and allow you to get the proper string representation directly.
For removing try to use gsub method, something like this:
text = "foo&bar"
text.gsub /\b&\b/, "" #=> foobar
does anyone knows a file format for configuration files easy to read by humans? I want to have something like tag = value where value may be:
String
Number(int or float)
Boolean(true/false)
Array(of String values, Number values, Boolean values)
Another structure(it will be more clear what I mean in the fallowing example)
Now I use something like this:
IntTag=1
FloatTag=1.1
StringTag="a string"
BoolTag=true
ArrayTag1=[1 2 3]
ArrayTag2=[1.1 2.1 3.1]
ArrayTag3=["str1" "str2" "str3"]
StructTag=
{
NestedTag1=1
NestedTag2="str1"
}
and so on.
Parsing is easy but for large files I find it hard to read/edit in text editors. I don't like xml for the same reason, it's hard to read. INI does not support nesting and I want to be able to nest tags. I also don't want a complicated format because I will use limited kind of values as I mentioned above.
Thanks for any help.
What about YAML ? It's easy to parse, nicely structured has wide programming language support. If you don't need the full feature set, you could also use JSON.
Try YAML - is (subjectively) easy to read, allows nesting, and is relatively simple to parse.