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Revision 14586

lib/csvs.py: added ProgressInputFilter, analogous to streams.ProgressInputStream

View differences:

trunk/lib/csvs.py
183 183
        try: return self.reader.next()
184 184
        except StopIteration: return '' # EOF
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class ProgressInputFilter(streams.ProgressInputStream): # is also a reader
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    # ProgressInputStream extends StreamIter, so this can be used as a reader
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    '''wraps a reader, reporting the # rows read every n rows and after the last
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    row is read
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    @param log the output stream for progress messages
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    '''
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    def __init__(self, reader, log, msg='Read %d row(s)', n=100):
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        streams.ProgressInputStream.__init__(self, StreamFilter(reader), log,
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            msg, n)
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186 196
class ColInsertFilter(Filter):
187 197
    '''Adds column(s) to each row
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    @param mk_value(row, row_num) | literal_value

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