lib/util/log.py
def parse_fields(fmt, style='%', default=None):
    '''
    Parses and yields template fields in a format string.

    For %-style formatting, these look like: '%(foo)15s', where '15' refers to
    the field width for 'foo'.

    NOTE : This is a best-effort implementation. It might not work 100%.
    '''
    if style != '%':
        raise NotImplementedError(
            'unimplemented: field width for non %%-style formats' % ()
        )

    def _get_parser():
        '''
        Compiles and returns a regex parser for parsing fields.

        The regex matches something in the form: '%(foo) 15s'
          %       - prefix
          (name)  - named field (optional)
          0       - for numbers, left pad with 0, override space (optional)
          -       - left-pad, override 0 (optional)
          space   - whitespace before before positive numbers (optional)
          +       - for numbers, always include +/- sign (optional)
          number  - field width

        NOTE : Attribute names must match regex parameter names.
        '''

        field_pattern = ''.join((
            r'%',
            r'(?:\((?P<name>\w+)\))?',
            r'(?P<zero>0)?',
            r'(?P<minus>-)?',
            r'(?P<space>\s)?',
            r'(?P<plus>\+)?',
            r'(?P<width>\d+)?',
            r'(?P<point>(?:\.\d+))?',
            r'(?P<conv>[hlL]*[srxXeEfFdiou])',
        ))

        return re.compile(field_pattern)

    try:
        field_parser = _get_parser()
    except re.error as e:
        logger.error('field width parser is invalid: %r', e)
        return None

    def _match_to_field(match):
        return FormatField(**match.groupdict())

    return map(_match_to_field, field_parser.finditer(fmt))

    Parses and yields template fields in a format string.

    For %-style formatting, these look like: '%(foo)15s', where '15' refers to
    the field width for 'foo'.

    NOTE : This is a best-effort implementation. It might not work 100%.
    
Parses and yields template fields in a format string.

NOTE : This is a best-effort implementation. It might not work 100%.
Parses and yields template fields in a format string . NOTE : This is a best - effort implementation . It might not work 100% .
def parse_fields(fmt, style='%', default=None):
    if style != '%':
        raise NotImplementedError(
            'unimplemented: field width for non %%-style formats' % ()
        )
    def _get_parser():
        field_pattern = ''.join((
            r'%',
            r'(?:\((?P<name>\w+)\))?',
            r'(?P<zero>0)?',
            r'(?P<minus>-)?',
            r'(?P<space>\s)?',
            r'(?P<plus>\+)?',
            r'(?P<width>\d+)?',
            r'(?P<point>(?:\.\d+))?',
            r'(?P<conv>[hlL]*[srxXeEfFdiou])',
        ))
        return re.compile(field_pattern)
    try:
        field_parser = _get_parser()
    except re.error as e:
        logger.error('field width parser is invalid: %r', e)
        return None
    def _match_to_field(match):
        return FormatField(**match.groupdict())
    return map(_match_to_field, field_parser.finditer(fmt))
def parse_fields ( fmt , style = '%' , default = None ) : if style != '%' : raise NotImplementedError ( 'unimplemented: field width for non %%-style formats' % ( ) ) def _get_parser ( ) : '''
        Compiles and returns a regex parser for parsing fields.

        The regex matches something in the form: '%(foo) 15s'
          %       - prefix
          (name)  - named field (optional)
          0       - for numbers, left pad with 0, override space (optional)
          -       - left-pad, override 0 (optional)
          space   - whitespace before before positive numbers (optional)
          +       - for numbers, always include +/- sign (optional)
          number  - field width

        NOTE : Attribute names must match regex parameter names.
        ''' field_pattern = '' . join ( ( r'%' , r'(?:\((?P<name>\w+)\))?' , r'(?P<zero>0)?' , r'(?P<minus>-)?' , r'(?P<space>\s)?' , r'(?P<plus>\+)?' , r'(?P<width>\d+)?' , r'(?P<point>(?:\.\d+))?' , r'(?P<conv>[hlL]*[srxXeEfFdiou])' , ) ) return re . compile ( field_pattern ) try : field_parser = _get_parser ( ) except re . error as e : logger . error ( 'field width parser is invalid: %r' , e ) return None def _match_to_field ( match ) : return FormatField ( ** match . groupdict ( ) ) return map ( _match_to_field , field_parser . finditer ( fmt ) )
Parses and yields template fields in a format string.
Parses and yields template fields in a format string .
'''
    Parses and yields template fields in a format string.

    For %-style formatting, these look like: '%(foo)15s', where '15' refers to
    the field width for 'foo'.

    NOTE : This is a best-effort implementation. It might not work 100%.
    ''' '''
        Compiles and returns a regex parser for parsing fields.

        The regex matches something in the form: '%(foo) 15s'
          %       - prefix
          (name)  - named field (optional)
          0       - for numbers, left pad with 0, override space (optional)
          -       - left-pad, override 0 (optional)
          space   - whitespace before before positive numbers (optional)
          +       - for numbers, always include +/- sign (optional)
          number  - field width

        NOTE : Attribute names must match regex parameter names.
        '''
fmt
style
default