Is this the best way to perform a recursive search?

[fico]

I answered this StackOverflow Question last night, and I’m wondering if there is a simpler way to go about it.
 

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Basically: the user wants to perform multiple find_in_files searches, each time only searching within files that showed up in the previous results buffer.
 

My answer was essentially:

• Perform first search
• Use RegEx to extract paths
• Use RegEx to concatenate paths into comma separated list
• Use comma separated list as the Where: argument for the second search
• Repeat
   

More details are shown in the question & answer @ the above link.
 

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The reason I ask is that the RegEx steps are kind of a hassle if you’ll be using that method frequently.

If theres not a better way to do it, I’ll probably make a simple plugin that pulls the comma separated list of paths straight into the clipboard.

[FichteFoll]

I suppose this would be a task for your shell + some GNU utils. You could also write a plugin, of course.