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import re
_marker = object()
class Route(object):
def __init__(self, name, matcher, generator, factory):
self.name = name
self.matcher = matcher
self.generator = generator
self.factory = factory
def match(self, path):
return self.matcher(path)
def generate(self, kw):
return self.generator(kw)
class RoutesRootFactory(object):
def __init__(self, default_root_factory):
self.default_root_factory = default_root_factory
self.routelist = []
self.routes = {}
def has_routes(self):
return bool(self.routelist)
def connect(self, name, path, factory=None):
matcher, generator = _compile_route(path)
route = Route(name, matcher, generator, factory)
self.routelist.append(route)
self.routes[name] = route
return route
def generate(self, name, kw):
return self.routes[name].generate(kw)
def __call__(self, environ):
path = environ.get('PATH_INFO', '/')
for route in self.routelist:
match = route.match(path)
if match is not None:
environ['wsgiorg.routing_args'] = ((), match)
environ['bfg.routes.route'] = route
environ['bfg.routes.matchdict'] = match
adhoc_attrs = environ.setdefault('webob.adhoc_attrs', {})
adhoc_attrs['matchdict'] = match
factory = route.factory or self.default_root_factory
return factory(environ)
return self.default_root_factory(environ)
# stolen from bobo and modified
route_re = re.compile(r'(/:[a-zA-Z]\w*)')
def _compile_route(route):
if not route.startswith('/'):
route = '/' + route
star = None
if '*' in route:
route, star = route.rsplit('*', 1)
pat = route_re.split(route)
pat.reverse()
rpat = []
gen = []
prefix = pat.pop()
if prefix:
rpat.append(re.escape(prefix))
gen.append(prefix)
while pat:
name = pat.pop()
name = name[2:]
gen.append('/%%(%s)s' % name)
name = '/(?P<%s>[^/]*)' % name
rpat.append(name)
s = pat.pop()
if s:
rpat.append(re.escape(s))
gen.append(s)
if star:
rpat.append('(?P<%s>.*?)' % star)
gen.append('%%(%s)s' % star)
pattern = ''.join(rpat) + '$'
match = re.compile(pattern).match
def matcher(path):
m = match(path)
if m is None:
return m
return dict(item for item in m.groupdict().iteritems()
if item[1] is not None)
gen = ''.join(gen)
def generator(dict):
newdict = {}
for k, v in dict.items():
if isinstance(v, unicode):
v = v.encode('utf-8')
newdict[k] = v
return gen % newdict
return matcher, generator
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