def column_converter(string):
column = string.strip('<STR_LIT:U+002C>')<EOL>if '<STR_LIT:->' in column:<EOL><INDENT>column_range = list(map(int, column.split('<STR_LIT:->')))<EOL>if column_range[<NUM_LIT:0>] > column_range[<NUM_LIT:1>]:<EOL><INDENT>column_range[<NUM_LIT:0>] += <NUM_LIT:1><EOL>return [i for i in range(*column_range[::-<NUM_LIT:1>])][::-<NUM_LIT:1>]<EOL><DEDENT>column_range[<NUM_LIT:1>] += <NUM_LIT:1><EOL>return [i for i in range(*column_range)]<EOL><DEDENT>if '<STR_LIT:U+002C>' in column:<EOL><INDENT>columns = column.split('<STR_LIT:U+002C>')<EOL>return list(map(int, columns))<EOL><DEDENT>return [int(column)]<EOL>
Converts column arguments to integers.

- Accepts columns in form of INT, or the range INT-INT.
- Returns a list of one or more integers.