Felix Schwarz wrote: > Hi all, > > I'm experiencing problems with a regular expression and I can't figure > out which words I use when googling. I read the python documentation for > the re module multiple times now but still no idea what I'm doing wrong. > > What I want to do: > - Extract all digits (\d) in a string. > - Digits are separated by space (\w) > > What my program does: > - It extracts only the last digit. > > Here is my program: > import re > line = ' 1 2 3' > regex = '^' + '(?:\s+(\d))*' + '$' > match = re.match(regex, line) > print "lastindex is: ",match.lastindex > print "matches: ",match.group(1) > > > Obviously I do not understand how (?:\s+(\d))* works in conjunction with > ^ and $. >
I am sure what you like to do. What about regex= re.compile('\s+\d') print regex.findall(line) -- Helmut Jarausch Lehrstuhl fuer Numerische Mathematik RWTH - Aachen University D 52056 Aachen, Germany -- http://mail.python.org/mailman/listinfo/python-list