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dummzeuch

Regular expression for "exclude dirs" in Grep?

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Posted (edited)

Another thing I just found out is that the Grep expert uses a regular expression for the exclude dirs option.

It first escapes meta characters (e.g. '.', '*', '\' etc.), replaces ';' with '|' and then uses the result as a case insensitive regular expression to match the full directory name and the full file name. Every directory or file that matches the regex is excluded from the search.

 

The help says this:

Exclude Dirs:

A semicolon separated list of directories to exclude from the search
(the exclusion is done via a substring match on the full directory and file name)

I always assumed that this filter is only applied to the name of subdirectories and that it does a full match, e.g. 'src' matches the 'src' subdirectory only, not just any directory name that contains the string 'src', e.g. 'deleted-src'. And I never expected it to match a file name like 'somesrc.pas'.

 

Searching the directory 'd:\src\SomeProject' with an exclude dirs filter of 'src' will actually find nothing at all because all names will start with 'd:\src' which always matches the filter!

 

Did you know that? Is this a bug or a feature?

Edited by dummzeuch

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OK, since nobody bothered to reply, I assume that it won't matter if I change that feature to do what most people will assume it does:

Only search sub-directories that do not match those given in the exclude dirs list.

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3 hours ago, dummzeuch said:

OK, since nobody bothered to reply, I assume that it won't matter if I change that feature to do what most people will assume it does:

Only search sub-directories that do not match those given in the exclude dirs list.

done

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