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Commit Description:
Merge pull request #17 from nattee/master...
Commit Description:
Merge pull request #17 from nattee/master
upgrade to current working snapshot
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lib/assets/Lib/xml/sax/__init__.py
| 105 lines
| 3.5 KiB
| text/x-python
| PythonLexer
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| r584 | """Simple API for XML (SAX) implementation for Python. | |||
| This module provides an implementation of the SAX 2 interface; | ||||
| information about the Java version of the interface can be found at | ||||
| http://www.megginson.com/SAX/. The Python version of the interface is | ||||
| documented at <...>. | ||||
| This package contains the following modules: | ||||
| handler -- Base classes and constants which define the SAX 2 API for | ||||
| the 'client-side' of SAX for Python. | ||||
| saxutils -- Implementation of the convenience classes commonly used to | ||||
| work with SAX. | ||||
| xmlreader -- Base classes and constants which define the SAX 2 API for | ||||
| the parsers used with SAX for Python. | ||||
| expatreader -- Driver that allows use of the Expat parser with SAX. | ||||
| """ | ||||
| from .xmlreader import InputSource | ||||
| from .handler import ContentHandler, ErrorHandler | ||||
| from ._exceptions import SAXException, SAXNotRecognizedException, \ | ||||
| SAXParseException, SAXNotSupportedException, \ | ||||
| SAXReaderNotAvailable | ||||
| def parse(source, handler, errorHandler=ErrorHandler()): | ||||
| parser = make_parser() | ||||
| parser.setContentHandler(handler) | ||||
| parser.setErrorHandler(errorHandler) | ||||
| parser.parse(source) | ||||
| def parseString(string, handler, errorHandler=ErrorHandler()): | ||||
| from io import BytesIO | ||||
| if errorHandler is None: | ||||
| errorHandler = ErrorHandler() | ||||
| parser = make_parser() | ||||
| parser.setContentHandler(handler) | ||||
| parser.setErrorHandler(errorHandler) | ||||
| inpsrc = InputSource() | ||||
| inpsrc.setByteStream(BytesIO(string)) | ||||
| parser.parse(inpsrc) | ||||
| # this is the parser list used by the make_parser function if no | ||||
| # alternatives are given as parameters to the function | ||||
| default_parser_list = ["xml.sax.expatreader"] | ||||
| # tell modulefinder that importing sax potentially imports expatreader | ||||
| _false = 0 | ||||
| if _false: | ||||
| import xml.sax.expatreader | ||||
| import os, sys | ||||
| #if "PY_SAX_PARSER" in os.environ: | ||||
| # default_parser_list = os.environ["PY_SAX_PARSER"].split(",") | ||||
| del os | ||||
| _key = "python.xml.sax.parser" | ||||
| if sys.platform[:4] == "java" and sys.registry.containsKey(_key): | ||||
| default_parser_list = sys.registry.getProperty(_key).split(",") | ||||
| def make_parser(parser_list = []): | ||||
| """Creates and returns a SAX parser. | ||||
| Creates the first parser it is able to instantiate of the ones | ||||
| given in the list created by doing parser_list + | ||||
| default_parser_list. The lists must contain the names of Python | ||||
| modules containing both a SAX parser and a create_parser function.""" | ||||
| for parser_name in parser_list + default_parser_list: | ||||
| try: | ||||
| return _create_parser(parser_name) | ||||
| except ImportError as e: | ||||
| import sys | ||||
| if parser_name in sys.modules: | ||||
| # The parser module was found, but importing it | ||||
| # failed unexpectedly, pass this exception through | ||||
| raise | ||||
| except SAXReaderNotAvailable: | ||||
| # The parser module detected that it won't work properly, | ||||
| # so try the next one | ||||
| pass | ||||
| raise SAXReaderNotAvailable("No parsers found", None) | ||||
| # --- Internal utility methods used by make_parser | ||||
| if sys.platform[ : 4] == "java": | ||||
| def _create_parser(parser_name): | ||||
| from org.python.core import imp | ||||
| drv_module = imp.importName(parser_name, 0, globals()) | ||||
| return drv_module.create_parser() | ||||
| else: | ||||
| def _create_parser(parser_name): | ||||
| drv_module = __import__(parser_name,{},{},['create_parser']) | ||||
| return drv_module.create_parser() | ||||
| del sys | ||||