Alex Hall wrote:
Hi, once again...
I have a regexp that I am trying to use to make sure a line matches the format:
[c*]n [c*]n n
where c* is (optionally) 0 or more non-numeric characters and n is any
numeric character. The spacing should not matter. These should pass:
v1 v2 5
2 someword7 3
while these should not:
word 2 3
1 2
Here is my test:
s=re.search(r"[\d+\s+\d+\s+\d]", l)
if s: #do stuff
However:
1. this seems to pass with *any* string, even when l is a single
character. This causes many problems and cannot happen since I have to
[...]
You want to match a whole line, so you should use re.match not
re.search. See the docs:
http://docs.python.org/library/re.html#matching-vs-searching
You can also use re.split in this case:
yes = """
v1 v2 5
2 someword7 3
""".splitlines()
yes = [line for line in yes if line.strip()]
import re
pattern = "(\w*\d\s+?)" # there may be a better pattern than this
rx = re.compile(pattern)
for line in yes:
print [part for part in rx.split(line) if part]
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