From 1f9fa31cb54546ef0129a81b0257dda9a313b528 Mon Sep 17 00:00:00 2001 From: Georg Brandl Date: Mon, 27 Apr 2009 16:42:58 +0000 Subject: [PATCH] Merged revisions 71537 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r71537 | georg.brandl | 2009-04-12 19:24:11 +0200 (So, 12 Apr 2009) | 1 line #5741: dont disallow double percent signs in SafeConfigParser.set() keys. ........ --- Lib/configparser.py | 8 ++++---- Lib/test/test_cfgparser.py | 4 ++++ Misc/NEWS | 3 +++ 3 files changed, 11 insertions(+), 4 deletions(-) diff --git a/Lib/configparser.py b/Lib/configparser.py index 7510a6ef614..4fc9a8d4e49 100644 --- a/Lib/configparser.py +++ b/Lib/configparser.py @@ -620,7 +620,6 @@ class SafeConfigParser(ConfigParser): return ''.join(L) _interpvar_re = re.compile(r"%\(([^)]+)\)s") - _badpercent_re = re.compile(r"%[^%]|%$") def _interpolate_some(self, option, accum, rest, section, map, depth): if depth > MAX_INTERPOLATION_DEPTH: @@ -667,9 +666,10 @@ class SafeConfigParser(ConfigParser): # check for bad percent signs: # first, replace all "good" interpolations tmp_value = self._interpvar_re.sub('', value) + tmp_value = tmp_value.replace('%%', '') # then, check if there's a lone percent sign left - m = self._badpercent_re.search(tmp_value) - if m: + percent_index = tmp_value.find('%') + if percent_index != -1: raise ValueError("invalid interpolation syntax in %r at " - "position %d" % (value, m.start())) + "position %d" % (value, percent_index)) ConfigParser.set(self, section, option, value) diff --git a/Lib/test/test_cfgparser.py b/Lib/test/test_cfgparser.py index a8418ca5cc6..12fd00cbf17 100644 --- a/Lib/test/test_cfgparser.py +++ b/Lib/test/test_cfgparser.py @@ -424,6 +424,10 @@ class SafeConfigParserTestCase(ConfigParserTestCase): self.assertEqual(cf.get('sect', "option1"), "foo") + # bug #5741: double percents are *not* malformed + cf.set("sect", "option2", "foo%%bar") + self.assertEqual(cf.get("sect", "option2"), "foo%bar") + def test_set_nonstring_types(self): cf = self.fromstring("[sect]\n" "option1=foo\n") diff --git a/Misc/NEWS b/Misc/NEWS index 217276f11b0..44fbc473687 100644 --- a/Misc/NEWS +++ b/Misc/NEWS @@ -467,6 +467,9 @@ Library - Issue #5607: fixed Distutils test_get_platform for Mac OS X fat binaries. +- Issue #5741: don't disallow "%%" (which is an escape for "%") when setting + a value in SafeConfigParser. + - Issue #5732: added a new command in Distutils: check. - Issue #5731: Distutils bdist_wininst no longer worked on non-Windows