def __init__(self, filename):
"""Parses an ISP parameter file from disk.
Args:
filename: The filename or file object representing the ISP parameter file.
"""
if isinstance(filename, str):
par_file = open(filename, 'r')
else:
par_file = filename
self.keys = []
try:
par_file.readline() # Skip header line
for line in par_file:
match = ISPPar._re_kv_pair.match(line)
if not match:
continue # Skip malformed lines with no key-value pairs
key = match.group(1)
items = match.group(2).split()
if len(items) == 0:
value = None
elif len(items) == 1:
value = parse_literal(items[0])
else:
if not ISPPar._re_float_literal.match(items[0]):
# Value is a string literal containing whitespace characters
value = match.group(2)
else:
# Evaluate each item and stop at the first non-float literal
value = []
for i in items:
match = ISPPar._re_float_literal.match(i)
if match:
value.append(parse_literal(match.group()))
else:
# If the first float literal is immediately followed by a non-float literal handle the
# first one as singular value, e.g. in '20.0970 dB'
if len(value) == 1:
value = value[0]
break
self.keys.append(key)
setattr(self, key, value)
finally:
par_file.close()
if hasattr(self, 'date'):
self.date = '{}-{:02d}-{:02d}T{:02d}:{:02d}:{:02f}'.format(
*self.date)
def test_parse_literal():
assert anc.parse_literal(['1', '2.2', 'a']) == [1, 2.2, 'a']
with pytest.raises(TypeError):
anc.parse_literal(1)
def __init__(self, filename):
"""Parses an ISP parameter file from disk.
Args:
filename: The filename or file object representing the ISP parameter file.
"""
if isinstance(filename, str):
par_file = open(filename, 'r')
else:
par_file = filename
self.keys = []
try:
par_file.readline() # Skip header line
content = par_file.read().split('\n')
except UnicodeDecodeError:
par_file = codecs.open(filename,
'r',
encoding='utf-8',
errors='ignore')
content = par_file.read()
printable = set(string.printable)
content = filter(lambda x: x in printable, content)
content = ''.join(list(content)).split('\n')
try:
for line in content:
match = ISPPar._re_kv_pair.match(line)
if not match:
continue # Skip malformed lines with no key-value pairs
key = match.group(1)
items = match.group(2).split()
if len(items) == 0:
value = None
elif len(items) == 1:
value = parse_literal(items[0])
else:
if not ISPPar._re_float_literal.match(items[0]):
# Value is a string literal containing whitespace characters
value = match.group(2)
else:
# Evaluate each item and stop at the first non-float literal
value = []
for i in items:
match = ISPPar._re_float_literal.match(i)
if match:
value.append(parse_literal(match.group()))
else:
# If the first float literal is immediately followed by a non-float literal handle the
# first one as singular value, e.g. in '20.0970 dB'
if len(value) == 1:
value = value[0]
break
self.keys.append(key)
setattr(self, key, value)
finally:
par_file.close()
if hasattr(self, 'date'):
try:
self.date = '{}-{:02d}-{:02d}T{:02d}:{:02d}:{:02f}'.format(
*self.date)
except:
# if only date available
self.date = '{}-{:02d}-{:02d}'.format(*self.date)