Filter for filetype and exact words  #90

AFAIK there is no way to filter for filetypes in csearch. grep tool provides this with --include flag.

Headers only search
grep --include="*.h" -w SEARCH_EXACT_WORD

This feature might already be present in csearch tool, but I see it fails. I would like to search for exact words in header files alone.
I tried this
csearch '\<SEARCH_EXACT_WORD\>' but this fails.

As workaround
csearch SEARCH_EXACT_WORD | grep '\.h' | grep -w SEARCH_EXACT_WORD