[Gnu-arch-users] Hackerlab regexp subexpression matching

[Ron Parker]

I am not familiar with the exact Posix regexp spec, mostly because
there are so many permutations of regexps in existence that I have
long since forgotten which is standard and whose interpretation if the
standard is correct.

So my fairly simple question is does the hackerlab regexp
implementation support expressions like:

\([a-z]+\),junk,\1

which might for example match the following lines

ron,junk,ron
parker,junk,parker

but not

ron,junk,parker
parker,junk,parke

Obviously this is a contrived example, but is germane to what how I
hope to use it.