From a02f455a6b8ed2772a63e39deed5b84378d9b555 Mon Sep 17 00:00:00 2001
From: Zac Medico <zmedico@gentoo.org>
Date: Wed, 30 Sep 2009 05:52:03 +0000
Subject: Use a regular expression for SLOT validation inside
 vardbapi.aux_get().

svn path=/main/trunk/; revision=14467
---
 pym/portage/dbapi/vartree.py | 10 ++++++----
 pym/portage/dep.py           |  5 +++--
 2 files changed, 9 insertions(+), 6 deletions(-)

(limited to 'pym')

diff --git a/pym/portage/dbapi/vartree.py b/pym/portage/dbapi/vartree.py
index 9d1755e9f..93fbfe397 100644
--- a/pym/portage/dbapi/vartree.py
+++ b/pym/portage/dbapi/vartree.py
@@ -12,7 +12,7 @@ import portage
 portage.proxy.lazyimport.lazyimport(globals(),
 	'portage.checksum:_perform_md5_merge@perform_md5',
 	'portage.dep:dep_getkey,isjustname,match_from_list,' + \
-	 	'use_reduce,paren_reduce',
+	 	'use_reduce,paren_reduce,_slot_re',
 	'portage.elog:elog_process',
 	'portage.elog.filtering:filter_mergephases,filter_unmergephases',
 	'portage.locks:lockdir,unlockdir',
@@ -1251,10 +1251,12 @@ class vardbapi(dbapi):
 					cache_data[aux_key] = mydata[aux_key]
 				self._aux_cache["packages"][mycpv] = (mydir_mtime, cache_data)
 				self._aux_cache["modified"].add(mycpv)
-		if not mydata['SLOT']:
-			# Empty slot triggers InvalidAtom exceptions when generating slot
-			# atoms for packages, so translate it to '0' here.
+
+		if _slot_re.match(mydata['SLOT']) is None:
+			# Empty or invalid slot triggers InvalidAtom exceptions when
+			# generating slot atoms for packages, so translate it to '0' here.
 			mydata['SLOT'] = _unicode_decode('0')
+
 		return [mydata[x] for x in wants]
 
 	def _aux_get(self, mycpv, wants, st=None):
diff --git a/pym/portage/dep.py b/pym/portage/dep.py
index 8a2e781b4..70d95e484 100644
--- a/pym/portage/dep.py
+++ b/pym/portage/dep.py
@@ -808,7 +808,8 @@ def dep_getusedeps( depend ):
 
 # 2.1.3 A slot name may contain any of the characters [A-Za-z0-9+_.-].
 # It must not begin with a hyphen or a dot.
-_slot = r':([\w+][\w+.-]*)'
+_slot = r'([\w+][\w+.-]*)'
+_slot_re = re.compile('^' + _slot + '$', re.VERBOSE)
 
 _use = r'\[.*\]'
 _op = r'([=~]|[><]=?)'
@@ -816,7 +817,7 @@ _op = r'([=~]|[><]=?)'
 _atom_re = re.compile('^(?P<without_use>(?:' +
 	'(?P<op>' + _op + _cpv + ')|' +
 	'(?P<star>=' + _cpv + r'\*)|' +
-	'(?P<simple>' + _cp + '))(?:' + _slot + ')?)(' + _use + ')?$', re.VERBOSE)
+	'(?P<simple>' + _cp + '))(:' + _slot + ')?)(' + _use + ')?$', re.VERBOSE)
 
 def isvalidatom(atom, allow_blockers=False):
 	"""
-- 
cgit v1.2.3-1-g7c22