def string_literal():
whitespace()
quote = one_of('\'"')
commit()
st = u''.join(many1(p(string_char, quote)))
one_of(quote)
return ('str', st)
def end_element(name):
whitespace()
string("</")
commit()
if name != xml_name():
fail()
whitespace()
close_angle()
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 end_element(name):
whitespace()
string("</")
commit()
if name != xml_name():
fail()
whitespace()
close_angle()
def number():
whitespace()
lead = u''.join(many1(digit))
commit()
if optional(p(one_of, '.')):
trail = u''.join(many1(digit))
return ('float', float(lead + '.' + trail))
else:
return ('int', int(lead))
def bin_op():
left = term()
op = operator()
commit()
right = expression()
whitespace()
n = BinaryNode(left, op)
return n.merge(right)
def bin_op():
left = term()
op = operator()
commit()
right = expression()
whitespace()
n = BinaryNode(left, op)
return n.merge(right)
def processing(parser=False):
parser = parser or compose(build_string, partial(many, partial(not_one_of, "?")))
string("<?")
commit()
result = parser()
whitespace()
string("?>")
return result
def parenthetical():
whitespace()
one_of('(')
commit()
whitespace()
v = expression()
whitespace()
one_of(')')
whitespace()
return ParentheticalNode(v)
def parenthetical():
whitespace()
one_of('(')
commit()
whitespace()
v = expression()
whitespace()
one_of(')')
whitespace()
return ParentheticalNode(v)
def processing(parser = False):
parser = parser or compose(build_string, partial(many, partial(not_one_of, '?')))
string('<?')
commit()
result = parser()
whitespace()
string('?>')
return result
def _ParseParenthetical(self):
"""Consumes parenthetical expression."""
whitespace()
one_of('(')
commit()
whitespace()
node = self._expr_parser()
whitespace()
one_of(')')
whitespace()
return Parenthetical(self._schema, node)
def _ParseOp(self): """Consumes one operation, defined by left term and right expression, which may be either another term or another ParseOp(). """ left = self._term_parser() op = self._operator() commit() right = self._expr_parser() whitespace() node = self._op_classes[op](self._schema, left) return node.Merge(right)
def _ParsePhrase(self):
"""Consumes a key range specification of the form <table>.<column>=<maybe
quoted value>.
"""
whitespace()
table = self._token().lower()
one_of('.')
commit()
column = self._token().lower()
whitespace()
one_of('=')
whitespace()
phrase = self._param_parser()
node = PhraseNode(self._schema, table, column, phrase)
whitespace()
return node
def _ParsePhrase(self):
"""Reads one attribute col_name=value. Creates a DB update
in self._updates.
"""
col_name = self._token().lower()
col_def = self._table.GetColumn(col_name)
one_of('=')
commit()
phrase = self._phrase()
if phrase:
value = eval(phrase)
if col_def.value_type == 'N':
value = int(value)
if self._raw:
self._updates[col_def.key] = db_client.UpdateAttr(value, 'PUT')
else:
self._updates[col_name] = value
else:
if self._raw:
self._updates[col_def.key] = db_client.UpdateAttr(None, 'DELETE')
else:
self._updates[col_name] = None
return None
def _ParsePhrase(self):
"""Reads one attribute col_name=value. Creates a DB update
in self._updates.
"""
col_name = self._token().lower()
col_def = self._table.GetColumn(col_name)
one_of('=')
commit()
phrase = self._phrase()
if phrase:
value = eval(phrase)
if col_def.value_type == 'N':
value = int(value)
if self._raw:
self._updates[col_def.key] = db_client.UpdateAttr(value, 'PUT')
else:
self._updates[col_name] = value
else:
if self._raw:
self._updates[col_def.key] = db_client.UpdateAttr(
None, 'DELETE')
else:
self._updates[col_name] = None
return None
def doctype():
string("<!DOCTYPE")
commit()
many_until(any_token, close_angle)
def float_value():
whole_part = digits()
one_of('.')
commit()
decimal_part = digits()
return float('%s.%s' % (whole_part, decimal_part))
def comment():
string("<!--")
commit()
result, _ = many_until(any_token, tri(partial(string, "-->")))
return "COMMENT", build_string(result)
def doctype():
string('<!DOCTYPE')
commit()
many_until(any_token, close_angle)
def ident():
pico.hash()
commit()
return many1(any_token)
def element():
open_angle()
name = xml_name()
commit()
attributes = lexeme(partial(sep, attribute, whitespace1))
return "NODE", name, attributes, choice(closed_element, partial(open_element, name))
def attribute():
name = xml_name()
commit()
lexeme(equals)
return "ATTR", name, quoted()
def float_value():
whole_part = digits()
one_of('.')
commit()
decimal_part = digits()
return float('%s.%s' % (whole_part, decimal_part))
def attribute():
name = xml_name()
commit()
lexeme(equals)
return "ATTR", name, quoted()
def comment():
string("<!--")
commit()
result, _ = many_until(any_token, tri(partial(string, "-->")))
return "COMMENT", build_string(result)
def ident():
whitespace1()
pico.hash()
commit()
return many1(any_token)
def element():
open_angle()
name = xml_name()
commit()
attributes = lexeme(partial(sep, attribute, whitespace1))
return "NODE", name, attributes, choice(closed_element, partial(open_element, name))
def ident():
whitespace1()
one_of('#')
commit()
result['ident'] = "".join(many1(partial(not_one_of, ',')))
