Databases
StackOverflow2013
Postsdbo
POIs there a way to get an NSArray of NSRanges for an occurrence of an NSString inside of another NSString?
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POIs there a way to get an NSArray of NSRanges for an occurrence of an NSString inside of another NSString?
    primarykey
    data
    text
    <p>I have been recently working on an easy to use Syntax Highlighting system for a personal project. So far, I have everything working properly by finding the range of specific strings and highlighting that range in the NSTextView. Everything works until you try to type a highlighted word twice, which causes the error demonstrated below:</p> <pre><code>&lt;div class="container"&gt; &lt;div&gt; &lt;!-- This &lt;div&gt; would not get highlighted --&gt; Hello World &lt;/div&gt; &lt;/div&gt; &lt;!-- this &lt;/div&gt; would not get highlighted --&gt; </code></pre> <p>I believe this is occurring because I am only getting the first occurrence of an NSString using the rangeOfString method, and for that reason, only the first highlighted item is being highlighted.</p> <p>Sorry for the long explanation! Anyway, I was wondering if there was an rangesOfString method or something similar that can give me an NSArray of NSRanges for each occurrence of an NSString inside of another NSString. Below is the line of code I am using to get my range currently:</p> <pre><code>NSString *textViewString = [textView string]; NSString *textToHighlight = @"&lt;div&gt;"; NSRange area; area.location = 0; area.length = [textViewString length]; NSRange range = [textViewString rangeOfString: textToHighlight options: NSCaseInsensitiveSearch range: area]; </code></pre> <p>What I would like is something like this:</p> <pre><code>NSString *textViewString = [textView string]; NSString *textToHighlight = @"&lt;div&gt;"; NSRange area; area.location = 0; area.length = [textViewString length]; NSArray *ranges = [textViewString rangesOfString: textToHighlight options: NSCaseInsensitiveSearch range: area]; int i; int total = [ranges count]; for (i = 0; i &lt; total; i++) { NSRange occurrence = [ranges objectAtIndex: i]; // Apply color highlighting here } </code></pre> <p>If this is not possible, could someone please point me in the right direction or suggest an alternative way of doing syntax highlighting? Thank you!</p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. This table or related slice is empty.
    1. USJesse Dunlap
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POIs there a way to get an NSArray of NSRanges for an occurrence of an NSString inside of another NSString?
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. POIs there a way to get an NSArray of NSRanges for an occurrence of an NSString inside of another NSString?
      1. USEiko
      1. VTFavorite
    1. CORather than writing your own, why not use one of the existing open source frameworks? e.g. http://github.com/mugginsoft/Fragaria
      singulars
      1. POIs there a way to get an NSArray of NSRanges for an occurrence of an NSString inside of another NSString?
      1. USMike Abdullah
    2. COI'll have to check that out, thanks!
      singulars
      1. POIs there a way to get an NSArray of NSRanges for an occurrence of an NSString inside of another NSString?
      1. USJesse Dunlap
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload