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Revision 1505

Added by Aaron Marcuse-Kubitza almost 13 years ago

subtract: Also remove nonexplicit empty mappings whose input col is in map 1

View differences:

subtract
1 1 
#!/usr/bin/env python
2 
# Subtracts map spreadsheet A1->C from A0->B to A->B
2 
# Subtracts map spreadsheet A1->C from A0->B to produce A->B.
3 
# A0 entries that are empty and have no comment documenting why they are empty
4 
# are subtracted as well if there is a matching entry in A1.
3 5 

  		




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import csv


  		




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import os.path


  		




  ......




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    headers = [None]*2


  		




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    # Get map 1


  		




  
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    input_cols = set()


  		




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    compare_cols = set()


  		




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    stream = open(map_1_path, 'rb')


  		




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    reader = csv.reader(stream)


  		




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    headers[1] = reader.next()


  		




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    for row in reader:


  		




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        if row[0] != '': compare_cols.add(compare_on(row))


  		




  
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        if row[0] != '':


  		




  
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            input_cols.add(row[0])


  		




  
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            compare_cols.add(compare_on(row))


  		




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    stream.close()


  		




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    # Open map 0


  		




  ......




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    writer = csv.writer(sys.stdout)


  		




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    writer.writerow(headers[0])


  		




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    for row in reader:


  		




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        if compare_on(row) not in compare_cols: writer.writerow(row)


  		




  
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        if not (maps.is_nonexplicit_empty_mapping(row) and row[0] in input_cols


  		




  
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            or compare_on(row) in compare_cols): # not in map 1


  		




  
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            writer.writerow(row)


  		




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main()


  		












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