Hi,
Fabien COUTANT wrote:
> I am talking about {m}/{m,}/{m,n} at the place where you use ?, *
> or +.
>
> The sample program:
>
> BEGIN {
> s="abacab"
> r1="(a[bc]){2,3}"
> r2="(a[bc])(a[bc])+"
> print s~r1, s~r2
> }
>
> should print "1 1" but it doesn't.
With Aleksey Cheusov’s patch, this can be fixed by using libc regexp,
but ideally I would like mawk’s internal regexp to handle this, too.
I have a skeleton of an implementation mocked up, but I stopped when
the relationship between REcompile and RE_lex started getting ugly and
I ran out of time. How should the pair of interval endpoints be
passed from RE_lex to REcompile? And how should they be stored on the
op_stack? Ideas welcome.
Jonathan
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