Regex driving me crazy...
dreadpiratejeff at gmail.com
Wed Apr 7 17:40:32 EDT 2010
Can someone make me un-crazy?
I have a bit of code that right now, looks like this:
status = getoutput('smartctl -l selftest /dev/sda').splitlines()
status = re.sub(' (?= )(?=([^"]*"[^"]*")*[^"]*$)', ":",status)
Basically, it pulls the first actual line of data from the return you
get when you use smartctl to look at a hard disk's selftest log.
The raw data looks like this:
# 1 Short offline Completed without error 00% 679 -
Unfortunately, all that whitespace is arbitrary single space
characters. And I am interested in the string that appears in the
third column, which changes as the test runs and then completes. So
in the example, "Completed without error"
The regex I have up there doesn't quite work, as it seems to be
subbing EVERY space (or at least in instances of more than one space)
to a ':' like this:
# 1: Short offline:::::: Completed without error:::::: 00%:::::: 679:::::::: -
Ultimately, what I'm trying to do is either replace any space that is
> one space wiht a delimiter, then split the result into a list and
get the third item.
OR, if there's a smarter, shorter, or better way of doing it, I'd love to know.
The end result should pull the whole string in the middle of that
output line, and then I can use that to compare to a list of possible
output strings to determine if the test is still running, has
completed successfully, or failed.
Unfortunately, my google-fu fails right now, and my Regex powers were
always rather weak anyway...
So any ideas on what the best way to proceed with this would be?
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