27 lines
		
	
	
		
			650 B
		
	
	
	
		
			Python
		
	
	
	
			
		
		
	
	
			27 lines
		
	
	
		
			650 B
		
	
	
	
		
			Python
		
	
	
	
| import re
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| import sys
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| 
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| if sys.version_info > (3, 0):
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|     def u(s):
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|         return s
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| else:
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|     def u(s):
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|         return unicode(s)
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| 
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| class _escape:
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|     def __init__(self):
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|         self.escape = {
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|             u('"') : u('"'), u('<') : u('<'), u('>') : u('>'), 
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|             u('&') : u('&'), u("'") : u('''),
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|             }
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|         self.charef_rex = re.compile(u("|").join(self.escape.keys()))
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| 
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|     def _replacer(self, match):
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|         return self.escape[match.group(0)]
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| 
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|     def __call__(self, ustring):
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|         """ xml-escape the given unicode string. """
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|         return self.charef_rex.sub(self._replacer, ustring)
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| 
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| escape = _escape()
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