python multiple regular expressions

Question

I need to apply multiple regular expressions on a string which I'm doing like this:

regex = re.compile("...")
regex2 = re.compile("...")
regex3 = re.compile("...")
regex4 = re.compile("...")
if regex.match(string) == None and regex2.match(string) == None and regex3.match(string) == None and regex4.match(string) == None:

I was wondering if there is another way to somehow merge or combine the single regular expressions or if I'm already doing it the 'right way'?

well, it would help if you could give sample input/output and what the regex looks like... but essentially you can combine regex expressions into one regex almost all the time. usually using | . — Inbar Rose
– Inbar Rose, Commented Dec 31, 2012 at 11:21
e.g. I have two expressions regex1 = re.compile("[0-9]+[a-zA-z0-9]*") regex2 = re.compile("[a-zA-z]*[0-9]+[a-zA-z]+[a-zA-z0-9]*"), no the match action should always be the same if the result of a match is not 'None then nothing happens — wasp256
– wasp256, Commented Dec 31, 2012 at 11:24

root · Accepted Answer · 2012-12-31 11:33:34Z

3

r_list = [re.compile("..."),
          re.compile("..."),
          re.compile("..."), 
          re.compile("...")]
if any(r.match(string) for r in r_list):
    # if at least one of the regex's matches do smth

edited Dec 31, 2012 at 11:33

answered Dec 31, 2012 at 11:28

root

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