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Revision 1477

Added by Aaron Marcuse-Kubitza almost 13 years ago

xml_func.py: _nullIf: If value not convertible, return it, because can't equal null. Refactored to store types by name in a dict instead of using if statements.

View differences:

lib/xml_func.py
119 119 

  		




  120
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#### Transforming values


  		




  121
  121
  
    

  		




  
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types_by_name = {None: str, 'str': str, 'float': float}


  		




  
  123
  
    

  		




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def _nullIf(items):


  		




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    items = dict(conv_items(str, items))


  		




  124
  
  
    
    try:


  		




  125
  
  
    
        null = items['null']


  		




  126
  
  
    
        value = items['value']


  		




  
  126
  
    
    try: null = items['null']


  		




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    except KeyError, e: raise SyntaxException(e)


  		




  
  128
  
    
    value = items.get('value', None)


  		




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    type_str = items.get('type', None)


  		




  129
  
  
    
    type_ = str


  		




  130
  
  
    
    if type_str == 'float': type_ = float


  		




  131
  
  
    
    return util.none_if(value, type_(null))


  		




  
  130
  
    
    


  		




  
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    try: type_ = types_by_name[type_str]


  		




  
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    except KeyError, e: raise SyntaxException(e)


  		




  
  133
  
    
    null = type_(null)


  		




  
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  135
  
    
    try: return util.none_if(value, null)


  		




  
  136
  
    
    except ValueError: return value # value not convertible, so can't equal null


  		




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funcs['_nullIf'] = _nullIf


  		




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def _map(items):


  		












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