Shell Programming and Scripting

hi,
does anyone know how to count # of functions in a c/c++ project repository using bash or csh?
is there a mixture of grep/wc/and redirecting operators.

say for instance there is a proj directory called Foo with subfolders A,B,C.

You can try as,

find <dir> -name "*.c" | xargs grep "();" | wc

Try out.

muthu,

Wouldnt your query look for zero argument functions ?

I was thinking of something on the lines of ctags.

Have to read up the man page of ctags.

Vino

I am sorry. It will not work. One simple way is, if you use debugging symbols in object then you can use gdb <object> gdb> info function
it will give.

Using bash have to think some good ways.

Try this

ctags --c-types=f *.c

will produce a tags file.

cat tags | wc -l

Since there are some extra lines in tags( i think 4-5 lines), this will give you a close count.

vino

This should work.

Current directory is your foo directory:

Code:

prompt> ctags --c-types=f -R
prompt> sed -e '/[ ]*m$/d' -e '/TAG/d' <tags>functions
prompt> cat functions | wc -l

Explanation for the above.

ctags with --c-types=f will collect all the functions for you.

-R will recursivly go into sub-dir a,b,c.

sed is needed to remove the TAG entries introduced by ctags
Also to remove all lines ending with m i.e.
from man ctags
m class, struct, or union members

functions is the file that holds all the functions under foo

And finally wc -l gives you the count you are looking for.

Have a look at man ctags. Will help you if you have constraints other than functions.

Vino