Re: Questions about patch

[Gary Setter]

Hi,

I'm testing my changes to patch. There is some code that I don't
know how to exercise. It is in the pch.c module function
intuit_diff_type. It seem to be trying to handle heading that
diff generates. I'm particularly interested in the Prereq header.
I don't see anything in the help for diff that would generate
this type of thing. I downloaded diffutils-2.8.1 and searched for
the keywords Index: and Prereq: found nothing. If you or someone
on the mailing list know how this type of header is generated, I
will test this feature.

The relevant lines from intuit_diff_type follow.

 if (!stars_last_line && strnEQ(s, "*** ", 4))
     name[OLD] = fetchname (s+4, strippath, &p_timestamp[OLD]);
 else if (strnEQ(s, "+++ ", 4))
     /* Swap with NEW below.  */
     name[OLD] = fetchname (s+4, strippath, &p_timestamp[OLD]);
 else if (strnEQ(s, "Index:", 6))
     name[INDEX] = fetchname (s+6, strippath, (time_t *) 0);
 else if (strnEQ(s, "Prereq:", 7)) {