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from optparse import Option, OptionParser, _match_abbrev
# This case-insensitive option parser relies on having a
# case-insensitive dictionary type available. Here's one
# for Python 2.2. Note that a *real* case-insensitive
# dictionary type would also have to implement __new__(),
# update(), and setdefault() -- but that's not the point
# of this exercise.
class caseless_dict (dict):
def __setitem__ (self, key, value):
dict.__setitem__(self, key.lower(), value)
def __getitem__ (self, key):
return dict.__getitem__(self, key.lower())
def get (self, key, default=None):
return dict.get(self, key.lower())
def has_key (self, key):
return dict.has_key(self, key.lower())
class CaselessOptionParser (OptionParser):
def _create_option_list (self):
self.option_list = []
self._short_opt = caseless_dict()
self._long_opt = caseless_dict()
self._long_opts = []
self.defaults = {}
def _match_long_opt (self, opt):
return _match_abbrev(opt.lower(), self._long_opt.keys())
if __name__ == "__main__":
from optik.errors import OptionConflictError
# test 1: no options to start with
parser = CaselessOptionParser()
try:
parser.add_option("-H", dest="blah")
except OptionConflictError:
print "ok: got OptionConflictError for -H"
else:
print "not ok: no conflict between -h and -H"
parser.add_option("-f", "--file", dest="file")
#print `parser.get_option("-f")`
#print `parser.get_option("-F")`
#print `parser.get_option("--file")`
#print `parser.get_option("--fIlE")`
(options, args) = parser.parse_args(["--FiLe", "foo"])
assert options.file == "foo", options.file
print "ok: case insensitive long options work"
(options, args) = parser.parse_args(["-F", "bar"])
assert options.file == "bar", options.file
print "ok: case insensitive short options work"
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