def dummyFile(self, filename, expected):
f = self.tmp.write(filename, b'EOF')
crawler = Crawler()
ref = Sourcefile._make(
['', '', expected[0], expected[1], expected[2]])
res = crawler._parseFileName(f)
self.assertEquals(ref[2], res[2])
self.assertEquals(ref[3], res[3])
self.assertEquals(ref[4], res[4])
def _parseFileName(self, f):
"""
Apply a RegEx on a filename to extract the sensor's orientation and
session ID (aka patient ID); if an exercise ID is available,
match that too.
See the source code for available orientation parameters.
:param str f: Path of the file
:raises PermissionError: Indicating that no read access is provided
:return: Parsed sourcfile information
:rtype: :class:`Sourcefile <lib.shared.Sourcefile>`
"""
if not os.access(f, os.R_OK):
try:
raise PermissionError("No read access granted on '{}', "
" skipping file")
except Exception:
return False
attr = [''] * 5 # create list for file attributes
attr[0], attr[1] = os.path.split(f) # 0: fullpath 1:filename
# list of regexes we run the filename against
## orientation is either left or right
## exercise is prefixed by 'E' and sometimes followed by the orientation
## session is either prefixed by 'P', 'GA', 'GAstd' or 'Pat'
orientation = re.compile("(left|right)", re.IGNORECASE|re.M)
exercise = re.compile("E([A-Za-z0-9]+)(?:left|right)?", re.M)
session = re.compile("P([0-9]+)E?|GA([0-9]+)|GAstd([0-9a-z]+)(?:left|right)|Pat([0-9a-z]+)(?:left|right)", re.IGNORECASE|re.M)
orientationMatch = orientation.search(attr[1])
exerciseMatch = exercise.search(attr[1])
sessionMatch = session.search(attr[1])
# extract the matches
if orientationMatch:
m = orientationMatch.group(1).lower()
if m == 'left':
attr[4] = Orientation.left
elif m == 'right':
attr[4] = Orientation.right
if exerciseMatch:
attr[3] = exerciseMatch.group(1)
if sessionMatch:
for i in range(1, len(sessionMatch.groups()) + 1):
if sessionMatch.group(i):
attr[2] = sessionMatch.group(i)
break
return Sourcefile._make(attr)
