我们从Python开源项目中，提取了以下50个代码示例，用于说明如何使用sre_constants.error()。
def handlePrefProviders(self): for mc in self.multiconfigs: localdata = data.createCopy(self.databuilder.mcdata[mc]) bb.data.update_data(localdata) bb.data.expandKeys(localdata) # Handle PREFERRED_PROVIDERS for p in (localdata.getVar('PREFERRED_PROVIDERS', True) or "").split(): try: (providee, provider) = p.split(':') except: providerlog.critical("Malformed option in PREFERRED_PROVIDERS variable: %s" % p) continue if providee in self.recipecaches[mc].preferred and self.recipecaches[mc].preferred[providee] != provider: providerlog.error("conflicting preferences for %s: both %s and %s specified", providee, provider, self.recipecaches[mc].preferred[providee]) self.recipecaches[mc].preferred[providee] = provider
def matchFile(self, buildfile): """ Find the .bb file which matches the expression in 'buildfile'. Raise an error if multiple files """ matches = self.matchFiles(buildfile) if len(matches) != 1: if matches: msg = "Unable to match '%s' to a specific recipe file - %s matches found:" % (buildfile, len(matches)) if matches: for f in matches: msg += "\n %s" % f parselog.error(msg) else: parselog.error("Unable to find any recipe file matching '%s'" % buildfile) raise NoSpecificMatch return matches[0]
def test_binary_unicode_ignore(self): r"""Binary patterns should not process `\p` references.""" import sre_constants if PY36_PLUS: def no_unicode(): """Should fail on Unicode back reference.""" bre.compile_search(br'EX\p{Lu}MPLE') # Python 3.6+ fails on invalid back references (which ours are) # Since this one is not valid in a bytes string, it shouldn't # be used. It is okay that Python fails on this. self.assertRaises(sre_constants.error, no_unicode) else: pattern = bre.compile_search(br'EX\p{Lu}MPLE') m = pattern.match(br'EXp{Lu}MPLE') self.assertTrue(m is not None)
def __init__( self, pattern, flags=0): """The parameters pattern and flags are passed to the re.compile() function as-is. See the Python re module for an explanation of the acceptable patterns and flags.""" super(Regex,self).__init__() if len(pattern) == 0: warnings.warn("null string passed to Regex; use Empty() instead", SyntaxWarning, stacklevel=2) self.pattern = pattern self.flags = flags try: self.re = re.compile(self.pattern, self.flags) self.reString = self.pattern except sre_constants.error: warnings.warn("invalid pattern (%s) passed to Regex" % pattern, SyntaxWarning, stacklevel=2) raise self.name = _ustr(self) self.errmsg = "Expected " + self.name #self.myException.msg = self.errmsg self.mayIndexError = False self.mayReturnEmpty = True
def test_symbolic_groups(self): re.compile('(?P<a>x)(?P=a)(?(a)y)') re.compile('(?P<a1>x)(?P=a1)(?(a1)y)') self.assertRaises(re.error, re.compile, '(?P<a>)(?P<a>)') self.assertRaises(re.error, re.compile, '(?Px)') self.assertRaises(re.error, re.compile, '(?P=)') self.assertRaises(re.error, re.compile, '(?P=1)') self.assertRaises(re.error, re.compile, '(?P=a)') self.assertRaises(re.error, re.compile, '(?P=a1)') self.assertRaises(re.error, re.compile, '(?P=a.)') self.assertRaises(re.error, re.compile, '(?P<)') self.assertRaises(re.error, re.compile, '(?P<>)') self.assertRaises(re.error, re.compile, '(?P<1>)') self.assertRaises(re.error, re.compile, '(?P<a.>)') self.assertRaises(re.error, re.compile, '(?())') self.assertRaises(re.error, re.compile, '(?(a))') self.assertRaises(re.error, re.compile, '(?(1a))') self.assertRaises(re.error, re.compile, '(?(a.))')
def __sub__(self, other): """ Implementation of - operator, returns C{L{And}} with error stop """ if isinstance( other, basestring ): other = ParserElement._literalStringClass( other ) if not isinstance( other, ParserElement ): warnings.warn("Cannot combine element of type %s with ParserElement" % type(other), SyntaxWarning, stacklevel=2) return None return And( [ self, And._ErrorStop(), other ] )
def __init__( self, pattern, flags=0): """The parameters C{pattern} and C{flags} are passed to the C{re.compile()} function as-is. See the Python C{re} module for an explanation of the acceptable patterns and flags.""" super(Regex,self).__init__() if isinstance(pattern, basestring): if not pattern: warnings.warn("null string passed to Regex; use Empty() instead", SyntaxWarning, stacklevel=2) self.pattern = pattern self.flags = flags try: self.re = re.compile(self.pattern, self.flags) self.reString = self.pattern except sre_constants.error: warnings.warn("invalid pattern (%s) passed to Regex" % pattern, SyntaxWarning, stacklevel=2) raise elif isinstance(pattern, Regex.compiledREtype): self.re = pattern self.pattern = \ self.reString = str(pattern) self.flags = flags else: raise ValueError("Regex may only be constructed with a string or a compiled RE object") self.name = _ustr(self) self.errmsg = "Expected " + self.name self.mayIndexError = False self.mayReturnEmpty = True
def __sub__(self, other): """ Implementation of - operator, returns C{L{And}} with error stop """ if isinstance( other, basestring ): other = ParserElement._literalStringClass( other ) if not isinstance( other, ParserElement ): warnings.warn("Cannot combine element of type %s with ParserElement" % type(other), SyntaxWarning, stacklevel=2) return None return self + And._ErrorStop() + other
def __sub__(self, other): """Implementation of - operator, returns C{L{And}} with error stop""" if isinstance( other, basestring ): other = ParserElement.literalStringClass( other ) if not isinstance( other, ParserElement ): warnings.warn("Cannot combine element of type %s with ParserElement" % type(other), SyntaxWarning, stacklevel=2) return None return And( [ self, And._ErrorStop(), other ] )
def __init__( self, pattern, flags=0): """The parameters C{pattern} and C{flags} are passed to the C{re.compile()} function as-is. See the Python C{re} module for an explanation of the acceptable patterns and flags.""" super(Regex,self).__init__() if isinstance(pattern, basestring): if len(pattern) == 0: warnings.warn("null string passed to Regex; use Empty() instead", SyntaxWarning, stacklevel=2) self.pattern = pattern self.flags = flags try: self.re = re.compile(self.pattern, self.flags) self.reString = self.pattern except sre_constants.error: warnings.warn("invalid pattern (%s) passed to Regex" % pattern, SyntaxWarning, stacklevel=2) raise elif isinstance(pattern, Regex.compiledREtype): self.re = pattern self.pattern = \ self.reString = str(pattern) self.flags = flags else: raise ValueError("Regex may only be constructed with a string or a compiled RE object") self.name = _ustr(self) self.errmsg = "Expected " + self.name self.mayIndexError = False self.mayReturnEmpty = True
