(?P<fields>{field})
(?P<maths>(?:{math_op}{math_field})*)
(?:>(?P<strf_format>.+?))?
- (?P<alternate>(?<!\\),[^|)]+)?
+ (?P<alternate>(?<!\\),[^|&)]+)?
+ (?:&(?P<replacement>.*?))?
(?:\|(?P<default>.*?))?
$'''.format(field=FIELD_RE, math_op=MATH_OPERATORS_RE, math_field=MATH_FIELD_RE))
key = outer_mobj.group('key')
mobj = re.match(INTERNAL_FORMAT_RE, key)
initial_field = mobj.group('fields').split('.')[-1] if mobj else ''
- value, default = None, na
+ value, replacement, default = None, None, na
while mobj:
mobj = mobj.groupdict()
default = mobj['default'] if mobj['default'] is not None else default
value = get_value(mobj)
+ replacement = mobj['replacement']
if value is None and mobj['alternate']:
mobj = re.match(INTERNAL_FORMAT_RE, mobj['alternate'][1:])
else:
if fmt == 's' and value is not None and key in field_size_compat_map.keys():
fmt = '0{:d}d'.format(field_size_compat_map[key])
- value = default if value is None else value
+ value = default if value is None else value if replacement is None else replacement
flags = outer_mobj.group('conversion') or ''
str_fmt = f'{fmt[:-1]}s'