On 21 September 2010 23:53, Daniel-Constantin Mierla <miconda@gmail.com> wrote:

On 9/22/10 12:49 AM, Alex Balashov wrote:

On 09/21/2010 04:47 PM, dotnetdub wrote:

I also looked at using re.subst on $pU but can't get it to work.

What is the best way to achieve what I'm trying to do?

I would extract a substring based on length.  Intermediate (first) variable 'pu_len' is required because transformations cannot be nested:

  $var(pu_len) = $(pU{s.len}) - 1;
  $var(new_pi) = $(pU{s.substr,1,$var(pu_len)});

while this is correct, you can do it without computing the length:
$var(new_pi) = $(pU{s.substr,1,0});

- meaning is that when len param for transformation is 0, get substring from position param till the end of pv value.

Cheers,
Daniel