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merge latest feature to master branch
Commit Description:
merge latest feature to master branch
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lib/assets/Lib/xml/sax/_exceptions.py
| 136 lines
| 4.9 KiB
| text/x-python
| PythonLexer
|
| r584 | """Different kinds of SAX Exceptions""" | |||
| #in brython the 4 lines below causes an $globals['Exception'] error | ||||
| #import sys | ||||
| #if sys.platform[:4] == "java": | ||||
| # from java.lang import Exception | ||||
| #del sys | ||||
| # ===== SAXEXCEPTION ===== | ||||
| class SAXException(Exception): | ||||
| """Encapsulate an XML error or warning. This class can contain | ||||
| basic error or warning information from either the XML parser or | ||||
| the application: you can subclass it to provide additional | ||||
| functionality, or to add localization. Note that although you will | ||||
| receive a SAXException as the argument to the handlers in the | ||||
| ErrorHandler interface, you are not actually required to raise | ||||
| the exception; instead, you can simply read the information in | ||||
| it.""" | ||||
| def __init__(self, msg, exception=None): | ||||
| """Creates an exception. The message is required, but the exception | ||||
| is optional.""" | ||||
| self._msg = msg | ||||
| self._exception = exception | ||||
| Exception.__init__(self, msg) | ||||
| def getMessage(self): | ||||
| "Return a message for this exception." | ||||
| return self._msg | ||||
| def getException(self): | ||||
| "Return the embedded exception, or None if there was none." | ||||
| return self._exception | ||||
| def __str__(self): | ||||
| "Create a string representation of the exception." | ||||
| return self._msg | ||||
| def __getitem__(self, ix): | ||||
| """Avoids weird error messages if someone does exception[ix] by | ||||
| mistake, since Exception has __getitem__ defined.""" | ||||
| raise AttributeError("__getitem__") | ||||
| # ===== SAXPARSEEXCEPTION ===== | ||||
| class SAXParseException(SAXException): | ||||
| """Encapsulate an XML parse error or warning. | ||||
| This exception will include information for locating the error in | ||||
| the original XML document. Note that although the application will | ||||
| receive a SAXParseException as the argument to the handlers in the | ||||
| ErrorHandler interface, the application is not actually required | ||||
| to raise the exception; instead, it can simply read the | ||||
| information in it and take a different action. | ||||
| Since this exception is a subclass of SAXException, it inherits | ||||
| the ability to wrap another exception.""" | ||||
| def __init__(self, msg, exception, locator): | ||||
| "Creates the exception. The exception parameter is allowed to be None." | ||||
| SAXException.__init__(self, msg, exception) | ||||
| self._locator = locator | ||||
| # We need to cache this stuff at construction time. | ||||
| # If this exception is raised, the objects through which we must | ||||
| # traverse to get this information may be deleted by the time | ||||
| # it gets caught. | ||||
| self._systemId = self._locator.getSystemId() | ||||
| self._colnum = self._locator.getColumnNumber() | ||||
| self._linenum = self._locator.getLineNumber() | ||||
| def getColumnNumber(self): | ||||
| """The column number of the end of the text where the exception | ||||
| occurred.""" | ||||
| return self._colnum | ||||
| def getLineNumber(self): | ||||
| "The line number of the end of the text where the exception occurred." | ||||
| return self._linenum | ||||
| def getPublicId(self): | ||||
| "Get the public identifier of the entity where the exception occurred." | ||||
| return self._locator.getPublicId() | ||||
| def getSystemId(self): | ||||
| "Get the system identifier of the entity where the exception occurred." | ||||
| return self._systemId | ||||
| def __str__(self): | ||||
| "Create a string representation of the exception." | ||||
| sysid = self.getSystemId() | ||||
| if sysid is None: | ||||
| sysid = "<unknown>" | ||||
| linenum = self.getLineNumber() | ||||
| if linenum is None: | ||||
| linenum = "?" | ||||
| colnum = self.getColumnNumber() | ||||
| if colnum is None: | ||||
| colnum = "?" | ||||
| return "%s:%s:%s: %s" % (sysid, linenum, colnum, self._msg) | ||||
| # ===== SAXNOTRECOGNIZEDEXCEPTION ===== | ||||
| class SAXNotRecognizedException(SAXException): | ||||
| """Exception class for an unrecognized identifier. | ||||
| An XMLReader will raise this exception when it is confronted with an | ||||
| unrecognized feature or property. SAX applications and extensions may | ||||
| use this class for similar purposes.""" | ||||
| pass | ||||
| # ===== SAXNOTSUPPORTEDEXCEPTION ===== | ||||
| class SAXNotSupportedException(SAXException): | ||||
| """Exception class for an unsupported operation. | ||||
| An XMLReader will raise this exception when a service it cannot | ||||
| perform is requested (specifically setting a state or value). SAX | ||||
| applications and extensions may use this class for similar | ||||
| purposes.""" | ||||
| pass | ||||
| # ===== SAXNOTSUPPORTEDEXCEPTION ===== | ||||
| class SAXReaderNotAvailable(SAXNotSupportedException): | ||||
| """Exception class for a missing driver. | ||||
| An XMLReader module (driver) should raise this exception when it | ||||
| is first imported, e.g. when a support module cannot be imported. | ||||
| It also may be raised during parsing, e.g. if executing an external | ||||
| program is not permitted.""" | ||||
| pass | ||||