diff options
| -rw-r--r-- | pym/portage/dep/__init__.py | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/pym/portage/dep/__init__.py b/pym/portage/dep/__init__.py index 80e2b4c78..9720a510e 100644 --- a/pym/portage/dep/__init__.py +++ b/pym/portage/dep/__init__.py @@ -754,14 +754,20 @@ class Atom(_atom_base): memo[id(self)] = self return self +_extended_cp_re_cache = {} + def extended_cp_match(extended_cp, other_cp): """ Checks if an extended syntax cp matches a non extended cp """ # Escape special '+' and '.' characters which are allowed in atoms, # and convert '*' to regex equivalent. - extended_cp_re = re.compile("^" + extended_cp.replace("+", r"\+").replace( - ".", r"\.").replace('*', '[^/]*') + "$") + global _extended_cp_re_cache + extended_cp_re = _extended_cp_re_cache.get(extended_cp) + if extended_cp_re is None: + extended_cp_re = re.compile("^" + extended_cp.replace( + "+", r"\+").replace(".", r"\.").replace('*', '[^/]*') + "$") + _extended_cp_re_cache[extended_cp] = extended_cp_re return extended_cp_re.match(other_cp) is not None class ExtendedAtomDict(object): |