pattern mattching

[Pascal]

I'm try to match a pattern which doesn't really work for me kuz I just
want the pattern to appear once for example I have this line:

int x=0;x<=100;x++

I only what this: =, <=, ++
but I get all of these: =,<,=,<=,+,+,++
because In an other line I could have this: y=x+y then I would like to
have:=,+
but I can't seem to figure out what pattern to use That would work for
all situation.

 

[Anno Siegel]

I'm try to match a pattern which doesn't really work for me kuz I just
want the pattern to appear once for example I have this line:

int x=0;x<=100;x++

I only what this: =, <=, ++
but I get all of these: =,<,=,<=,+,+,++

So what pattern are you using?

because In an other line I could have this: y=x+y then I would like to
have:=,+

Looks like you're after the operators in C code. If so, why don't
you say so?

but I can't seem to figure out what pattern to use That would work for
all situation.

What are "all" situations?

If my assumption is right that you want to parse C code for operators,
pattern matching won't do. You'll need a parser. Your best best is
probably Parse::RecDescent. There may even be (partial) C parsers
on CPAN.

Anno