Question

I have a few trace lines in my file of the form

M_TRACE(EV_TRACE_LEVEL_DEBUG, "some trace");

I want to convert those into

M_TRACE(EV_TRACE_LEVEL_DEBUG, "%s: some trace", __FUNCTION__);

However I have already a few traces which display the function name also.

To make the conversion i am using the following command

:%g/M_TRACE/s/"\(.*\)"/"%s: \1", __FUNCTION__/c

which unfortunately includes a redundant FUNCTION in some places.

Is there any better way to do this?

Answer 1

You can do this in a single command:

:%g/M_TRACE/s/"\(.*\)"\(, __FUNCTION__\)\?/"%s: \1", __FUNCTION__/

It will replace the “, __FUNCTION__” if its already present or it simply append it if its not present.