Hello, yet another regular expression question :-)
So I have this xml file that I'm trying to find a specific tag in. For
this I'm using a regular expression. Right now, the tag I'm trying to
find looks like this:
<sceneobject name="Camera_Root_bernard" type="CameraRoot">
So I'm using a regular expression to find:
sceneobject
type="CameraRoot"
My code looks like this:
import os, re
def searchTag( sPattern, sFile ):
"""
Scans a xml file to try to find a line that matches search criterias.
ARGUMENTS:
sPattern (string): regular expression pattern string
sFile (string): full file path to scan
RETURN VALUE: text line (string) or None
"""
oRe = re.compile( sPattern )
if os.path.exists( sFile ) == False: return None
else:
oFile = file( sFile, 'r' )
for sLine in oFile.xreadlines(): # read text
oMatch = oRe.search( sLine ) # attempt a search
if oMatch != None: # check if search returned success
oFile.close()
return sLine
# Scan has yield no result, return None
oFile.close()
return None
sLine = searchTag( r'(sceneobject)(type="CameraRoot")', sFile )
The thing is that I suspect my regular expression pattern to be
incorrect because I always get None, but am at a loss here. Any advice
would be welcomed.
Thanks
Bernard
_______________________________________________
Tutor maillist - Tutor@python.org
http://mail.python.org/mailman/listinfo/tutor
