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Revision 278

Added by Aaron Marcuse-Kubitza about 13 years ago

xml_func.py: Return string->number conversion errors as xml_func.SyntaxExceptions

View differences:

lib/xml_func.py
2 2 

  		




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import datetime


  		




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import ex


  		




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import xml_dom


  		




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class SyntaxException(ex.ExceptionWithCause): pass


  		




  
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def map_items(func, items):


  		




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    return [(name, func(value)) for name, value in items]


  		




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def conv_items(type_, items):


  		




  
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    try: return map_items(type_, items)


  		




  
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    except ValueError, e: raise SyntaxException(e)


  		




  
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def alt(items):


  		




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    items = list(items)


  		




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    items.sort()


  		




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    return items[0][1] # value of lowest-numbered item


  		




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def range_(items):


  		




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    items = dict(map_items(float, items))


  		




  
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    items = dict(conv_items(float, items))


  		




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    return str(items['to'] - items['from'])


  		




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def avg(items):


  		




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    count = 0


  		




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    sum_ = 0.


  		




  22
  
  
    
    for name, value in map_items(float, items):


  		




  
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    for name, value in conv_items(float, items):


  		




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        count += 1


  		




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        sum_ += value


  		




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    return str(sum_/count)


  		




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def date(items):


  		




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    items = dict(items)


  		




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    year = float(items['year'])


  		




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    date = datetime.date(int(year), int(items.get('month', '1')),


  		




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        int(items.get('day', '1'))) + datetime.timedelta(round((year % 1.)*365))


  		




  
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    year = items['year']


  		




  
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    month = items.get('month', '1')


  		




  
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    day = items.get('day', '1')


  		




  
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    try:


  		




  
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        year = float(year)


  		




  
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        month = int(month)


  		




  
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        day = int(day)


  		




  
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    except ValueError, e: raise SyntaxException(e)


  		




  
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    date = (datetime.date(int(year), month, day) +


  		




  
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        datetime.timedelta(round((year % 1.)*365)))


  		




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    return date.strftime('%Y-%m-%d')


  		




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def name(items):


  		












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