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Add identifier_from_name() function.

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Adapted from name2ident() in scripts/migration-i18n.py.
This commit is contained in:
a_magical_me 2011-04-03 04:49:34 -07:00
parent 2e7fdf7d10
commit dbb293e727
1 changed files with 33 additions and 0 deletions
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33
pokedex/db/__init__.py
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@ -1,3 +1,6 @@
# encoding: utf-8
import re
from sqlalchemy import MetaData, Table, engine_from_config, orm
from ..defaults import get_default_db_uri
@ -45,3 +48,33 @@ def connect(uri=None, session_args={}, engine_args={}, engine_prefix=''):
session = MultilangScopedSession(sm)
return session
def identifier_from_name(name):
"""Make a string safe to use as an identifier.
Valid characters are lowercase alphanumerics and "-". This function may
raise ValueError if it can't come up with a suitable identifier.
This function is useful for scripts which add things with names.
"""
if isinstance(name, str):
identifier = name.decode('utf-8')
else:
identifier = name
identifier = identifier.lower()
identifier = identifier.replace(u'+', u' plus ')
identifier = re.sub(u'[ _–]+', u'-', identifier)
identifier = re.sub(u"['./;’(),:]", u'', identifier)
identifier = identifier.replace(u'é', u'e')
identifier = identifier.replace(u'♀', u'-f')
identifier = identifier.replace(u'♂', u'-m')
if identifier in (u'???', u'????'):
identifier = u'unknown'
elif identifier == u'!':
identifier = u'exclamation'
elif identifier == u'?':
identifier = u'question'
if not identifier.replace(u"-", u"").isalnum():
raise ValueError(identifier)
return identifier