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configtypes: Refactor regex validation.

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This commit is contained in:
Florian Bruhin 2015-10-01 22:29:24 +02:00
parent 8e52e5f2fc
commit e4a216e7cf
1 changed files with 18 additions and 13 deletions
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31
qutebrowser/config/configtypes.py
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@ -24,7 +24,6 @@ import shlex
import base64
import codecs
import os.path
import sre_constants
import itertools
import collections
@ -45,6 +44,14 @@ BOOLEAN_STATES = {'1': True, 'yes': True, 'true': True, 'on': True,
'0': False, 'no': False, 'false': False, 'off': False}
def _validate_regex(pattern, flags):
try:
re.compile(pattern, flags)
except re.error as e:
raise configexc.ValidationError(pattern, "must be a valid regex - " +
str(e))
class ValidValues:
"""Container for valid values for a given type.
@ -751,11 +758,7 @@ class Regex(BaseType):
self._basic_validation(value)
if not value:
return
try:
re.compile(value, self.flags)
except sre_constants.error as e:
raise configexc.ValidationError(value, "must be a valid regex - " +
str(e))
_validate_regex(value, self.flags)
def transform(self, value):
if not value:
@ -783,13 +786,15 @@ class RegexList(List):
self._basic_validation(value)
if not value:
return
try:
vals = self.transform(value)
except sre_constants.error as e:
raise configexc.ValidationError(value, "must be a list valid "
"regexes - " + str(e))
if not self.none_ok and None in vals:
raise configexc.ValidationError(value, "items may not be empty!")
vals = super().transform(value)
for val in vals:
if val is None:
if not self.none_ok:
raise configexc.ValidationError(
value, "items may not be empty!")
else:
_validate_regex(val, self.flags)
class File(BaseType):