Thanks for a reply. This may be suggestions which may be on different thread. If you want, would do.
I have source tree which has many sym links and sub trees which I do not want to parse. Gtags has a "skip" feature but it's limited.
1. For example, not able to use glob on path name so have to list out all names explicitly which could have too many.
2. Not able to have "skip" field more than one. For example,
# for sub folder x
skip=gggg
# for sub folder y
skip=xxxx
Is there any other easy way to filter out targets files/directories so that can have small tag db and faster running?