def domain_literal():
optional(CFWS)
square()
many(partial(seq, partial(optional, FWS), dtext))
optional(FWS)
unsquare()
optional(CFWS)
def quoted_string():
optional(CFWS)
DQUOTE()
many(partial(seq, partial(optional, FWS), qcontent))
optional(FWS)
DQUOTE()
optional(CFWS)
def identifier(first=partial(one_of, ascii_letters),
consecutive=partial(one_of, ascii_letters + digit_chars + '_'),
must_contain=set(digit_chars)):
"""Expects a letter followed by one or more alphanumerical
characters. If ``must_contain`` is given, the following letters
must include one from this set.
The default option is to expect a letter followed by a number of
letters and digits, but with a requirement of at least one digit
(this allows an easy distinction between names and identifiers).
>>> parse(identifier, 'abc123')
'abc123'
>>> parse(identifier, 'abc') # doctest: +ELLIPSIS
Traceback (most recent call last):
...
NoMatch: ...
>>> parse(partial(identifier, must_contain=None), 'abc')
'abc'
"""
result = []
if first is not None:
result.append(first())
if must_contain is None:
chars = many(consecutive)
else:
chars = many1(partial(choice, consecutive, partial(one_of, must_contain)))
if not set(chars) & must_contain:
fail()
result.extend(chars)
return result
def identifier():
whitespace()
not_followed_by(p(choice, *[p(reserved, rw) for rw in reserved_words]))
first = identifier_char1()
commit()
rest = many(identifier_char)
name = u''.join([first] + rest)
return ('ident', name)
def parse(cls):
one_of('+')
caseless_string('epi')
aggregates = {}
if whitespace():
while peek():
try:
code = "".join(pico.one_of_strings(*(
tuple(cls.TOKENS) + tuple(cls.ALIAS))))
code = code.upper()
except:
raise FormatError(
"Expected an epidemiological indicator "
"such as TB or MA (got: %s)." % \
"".join(remaining()))
# rewrite alias
code = cls.ALIAS.get(code, code)
if code in aggregates:
raise FormatError("Duplicate value for %s." % code)
whitespace1()
try:
minus = optional(partial(one_of, '-'), '')
value = int("".join([minus]+pico.digits()))
except:
raise FormatError("Expected a value for %s." % code)
if value < 0:
raise FormatError("Got %d for %s. You must "
"report a positive value." % (
value, cls.TOKENS[code].lower()))
aggregates[code] = value
many(partial(one_of, ' ,;.'))
return {
'aggregates': aggregates
}
def parse(cls, keyword=None, keywords=None):
if keywords is None:
keywords = cls.KEYWORDS
slug = keywords[keyword.lower()]
kind = ReportKind.objects.get(slug=slug)
observations = {}
result = {
'observations': observations,
'kind': kind,
}
total = "".join(optional(pico.digits, ()))
if total:
result['total'] = int(total)
many1(partial(one_of, ' ,;'))
kinds = ObservationKind.objects.filter(slug__startswith="%s_" % slug).all()
observation_kinds = dict((kind.slug, kind) for kind in kinds)
codes = [kind.abbr for kind in kinds if kind.abbr]
# we allow both the observation kinds and any aliases
allowed_codes = tuple(codes) + tuple(cls.ALIASES)
while peek():
# look up observation kinds that double as user input
# for the aggregate codes
try:
code = "".join(pico.one_of_strings(*allowed_codes)).lower()
except:
raise FormatError(
"Expected an indicator code "
"such as %s (got: %s)." % (
" or ".join(map(unicode.upper, codes[:2])),
"".join(remaining()).strip() or u"nothing"))
# rewrite alias if required, then look up kind
munged= "%s_%s" % (slug, code)
munged = cls.ALIASES.get(munged, munged)
kind = observation_kinds[munged]
# guard against duplicate entries
if kind.slug in observations:
raise FormatError("Duplicate value for %s." % code)
whitespace()
try:
minus = optional(partial(one_of, '-'), '')
value = int("".join([minus]+pico.digits()))
except:
raise FormatError("Expected a value for %s." % code)
if value < 0:
raise FormatError("Got %d for %s. You must "
"report a positive value." % (
value, kind.name))
observations[kind.slug] = value
many(partial(one_of, ' ,;.'))
return result
def comment():
paren()
many(partial(seq, partial(optional, FWS), ccontent))
optional(FWS)
def hex_value():
return int(build_string(many(hex_decimal_digit)), 16)
def program():
prog = many(program_part)
whitespace()
eof()
return ('prog', prog)
def prolog():
whitespace()
optional(tri(partial(processing, xmldecl)), None)
many(partial(choice, processing, comment, whitespace1))
optional(doctype, None)
many(partial(choice, processing, comment, whitespace1))
def open_element(name):
close_angle()
children = many(node)
end_element(name)
return children
def xml_name():
return build_string([name_start_char()] + many(name_char))
def hex_value():
return int(build_string(many(hex_decimal_digit)), 16)
def open_element(name):
close_angle()
children = many(node)
end_element(name)
return children
def prolog():
whitespace()
optional(tri(partial(processing, xmldecl)), None)
many(partial(choice, processing, comment, whitespace1))
optional(doctype, None)
many(partial(choice, processing, comment, whitespace1))
def xml_name():
return build_string([name_start_char()] + many(name_char))
