[RFC] Make static tracepoint with markers more OO

[Tom Tromey]

>>>>> "Sergio" == Sergio Durigan Junior <sergiodj@redhat.com> writes:

Sergio> +  if (arg && strncmp (arg, "-m", 2) == 0 && isblank (arg[2]))

Tom> I am not sure that isblank is ok to use.  gdb doesn't use it anywhere
Tom> else.  I suggest just using the original check.

Sergio> Yeah, well, the original check is for space and tab, and isblank does
Sergio> exactly that.  I am not sure what is the deal about using it, but I
Sergio> removed as suggested.

I believe isblank was added in C99, but gdb generally uses C90.

These days, you can pretty much search for "gnulib $FUNCTION" and find
all the information you need:

    http://www.gnu.org/software/gnulib/manual/html_node/isblank.html

I wouldn't mind us upgrading, or using more of gnulib, or both.

Sergio> The attached patch fixes all the issues pointed out by you and Pedro.  I
Sergio> have also tested this on my machine using UST probes, and on testfarm.
Sergio> No regressions were found.  Is it OK to apply?

Sergio> +  if (arg && strncmp (arg, "-m", 2) == 0 && (isspace (arg[2])
Sergio> +					     || arg[2] == '\t'))

isspace also looks for \t, so please remove the || clause.

I have no further comments, but I would rather Pedro give the final OK
on this.

Tom