Question

I’ve coded that in python but the language doesn’t matter here:

  pattern = re.compile("^params:([0-9]+)$")
  f = open(in_file, 'r')
  try:
    while True:
      v = f.readline()
      if not v:
        break
      found = pattern.search(v)
      if found:
        pdb.gimp_message(str(found.group(1)))
        break
  finally:
    f.close()

The problem is that the regexp validates:

params:0
params:01654
params:000000000000

and I don’t want them to be valid, so I have to add this condition: if found.group(1)>0: and I was thinking: maybe a smart regular expression could avoid this.

Any idea?

Answer 1

If I understood correctly, the only condition is that there shouldn’t be a zero at the start.

^params:([1-9][0-9]*)$