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Re: Is there a way to prepare NSAttaributedString like "attribute runs"?
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Re: Is there a way to prepare NSAttaributedString like "attribute runs"?


  • Subject: Re: Is there a way to prepare NSAttaributedString like "attribute runs"?
  • From: Shane Stanley <email@hidden>
  • Date: Mon, 11 Dec 2017 22:33:19 +1100

On 11 Dec 2017, at 7:34 pm, Takaaki Naganoya <email@hidden> wrote:
>
> We can prepare styled text with TextEditor.app with “attribute runs”.
> So, we can filter text whose color is red. This is very useful and ordinary
> processing in AppleScript.
>
> I am looking for similar one with NSAttributedString in vain.
>
> Is there a way to prepare NSAttributedString like “attribute runs”?

Sure. If you have an attributed string in a variable called attString and run
this code:

set {theAtts, theRange} to attString's attributesAtIndex:0
longestEffectiveRange:(reference) inRange:{0, attString's |length|()}

The variable theAtts will contain a dictionary of the attributes, where you can
check the color, and theRange will contain the equivalent of the attribute run.
You can put it in a repeat loop, each time changing the index to just after the
previous range. So something like:

set theLength to attString's |length|()
set startIndex to 0
repeat
        set {theAtts, theRange} to attString's attributesAtIndex:startIndex
longestEffectiveRange:(reference) inRange:{0, attString's |length|()}
        -- do stuff with theAtts here
        set rangeEnd to current application's NSMaxRange(theRange)
        if rangeEnd ≥ theLength - 1 then exit repeat
        set startIndex to rangeEnd + 1
end repeat

Alternatively, you can use -attribute:atIndex:longestEffectiveRange:inRange:
instead, and get back the value for a particular attribute, like text color.

--
Shane Stanley <email@hidden>
<www.macosxautomation.com/applescript/apps/>, <latenightsw.com>


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