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I have code in a directory tree, with lots of sub-directories.

The function foo() takes two parameters,. which will generally be different for each call.

I want to add a third, which every caller has a variable in a variable named debug.

I want to recurse the directory tree, find every call to foo(x, y) or foo(a,b) or foo(1,2) and add the debug parameter, so that they become foo(x, y, debug), etc

I want a gratis Windows program that will all me to search a filename with wildcards and recurse through the directory tree, finding each line with foo( and changing each ) to , debug)

Any ideas?

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Use Notepad++ There you can use the Find in Files function, do a regex search with your replace parameter.

You will fill the root directory path, check the In all sub-folders option, mark the Regular Expression option and fill the parameter as:

Find what: (foo\(.+?,.+?)\)

Replace with: $1, debug\)

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    Lolx! I meant to delete the question before going to bed last night, as that is exactly the conclusion that I had reached. Good that you answered, though, as others can now search for this. I will leave the question open for a bit, in the unlikely case that someone has a non-regexp solution. When no one has posted one, I will award you the answer. Welcome aboard!
    – Mawg says reinstate Monica
    Jan 15, 2017 at 10:22
  • No tool for n00bs, then :-/ I accpet this as the answer, since it does just what I want. Now I have two problems :-)
    – Mawg says reinstate Monica
    Jan 19, 2017 at 14:22
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    Regex heheheheh :) Take a time to learn it then you goes back to only one :)
    – Jorge Campos
    Jan 19, 2017 at 14:46

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