Utility function that parses the data contained in an XML
processing instruction and returns a dictionary of keywords and their
associated values (most of the time, the processing instructions contain
data like keyword="value", if a keyword is not associated to a value,
for example keyword, it will be associated to None).
- Parameters:
pi_data (unicode) - data contained in an XML processing instruction.
- Returns: dict
- Dictionary of the keywords (Unicode strings) associated to
their values (Unicode strings) as they were defined in the
data.
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