|
"""Parsers for the specific XIA INI file format."""
from collections import OrderedDict
def parse_xia_ini_file(content):
"""Parse the content of a XIA INI file.
The return result is an OrderedDict of <section name: list>,
where the list items are OrderedDict of <key: value>.
"""
dct = OrderedDict()
section, item = None, None
# Loop over striped lines
for line in content.splitlines():
line = line.strip()
# Comment
if line.startswith('*'):
pass
# New section
elif line.startswith('[') and line.endswith(']'):
if item is not None:
msg = "New section within section {} item {}"
raise ValueError(msg.format(section, item))
item = None
section = line[1:-1].strip()
dct[section] = []
# New item
elif line.startswith('START #'):
if item is not None:
msg = "New item within section {} item {}"
raise ValueError(msg.format(section, item))
item = int(line.split('#')[1])
if section is None:
msg = 'Item {} outside of section'
raise ValueError(msg.format(item))
if item != len(dct[section]):
msg = 'Corrupted start (section {}, {} should be {})'
msg = msg.format(section, item, len(dct[section]))
raise ValueError(msg)
dct[section].append(OrderedDict())
# End item
elif line.startswith('END #'):
if item is None:
msg = 'End markup outside of item'
raise ValueError(msg)
item = int(line.split('#')[1])
if item != len(dct[section]) - 1:
msg = 'Corrupted end (section {}, {} should be {})'
msg = msg.format(section, item, len(dct[section]) - 1)
raise ValueError(msg)
item = None
# New pair
elif '=' in line:
key, value = map(str.strip, line.split('='))
if item is None:
msg = 'Key/value pair {} outside of item'
raise ValueError(msg.format((key, value)))
dct[section][item][key] = value
# Error
elif line:
raise ValueError('Line not recognized: {!r}'.format(line))
# Return result
return dct
|
