def construct(pattern):
patterns = (curry(cons) ** Pattern.parse * -(Char(" ") >> -Pattern.parse))(pattern)
def run(args):
results = list(pat.match(x) for pat, x in zip(patterns, args))
if all(x is not None for x in results):
return dict(concat(results))
return run
def construct(pattern):
patterns = (curry(cons)**Pattern.parse *
-(Char(" ") >> -Pattern.parse))(pattern)
def run(args):
results = list(pat.match(x) for pat, x in zip(patterns, args))
if all(x is not None for x in results):
return dict(concat(results))
return run
class Cons(Multi("x", "xs")):
parse = Delay(lambda: curry(Cons)**Pattern.parse_noncons *
(Char(":") >> Pattern.parse))
def match(self, value):
if len(value) > 0:
y = self.x.match(value[0])
if y:
ys = self.xs.match(value[1:])
return ys and y + ys
from Prelude.ParserCombinators.Entities import *
from Prelude.ParserCombinators.String import *
from Prelude import cons, curry
#http://www.python.jp/doc/release/reference/expressions.html
expression_list = lambda x: curry(cons) ** x * -(Char(",") >> x) << Optional(Char(","))
identifier = (alpha | Char("_")) + "".join ** -(alnum | Char("_"))
parens = lambda x: Char("(") >> x << Char(")")
brackets = lambda x: Char("[") >> x << Char("]")
escapeseq = Char("\\") >> ascii
stringprefix = reduce(Parser.__or__, map(Char, ["r", "u", "ur", "R", "U", "UR", "Ur", "uR", "b", "B", "br", "Br", "bR", "BR"]))
shortstringchar = lambda quote: Sat(lambda c: c != "\\" and c != "\n" and c != quote)
shortstringitem = lambda quote: shortstringchar(quote) | escapeseq
shortstring = Char("'") + "".join ** -shortstringitem("'") + Char("'") | Char('"') + "".join ** -shortstringitem('"') + Char('"')
stringliteral = eval ^ Optional(stringprefix) + shortstring
"""
longstring = String("'''") >> -longstringitem << String("'''") | String('\"\""') >> -longstringitem << String('\""\"')
longstringchar = Sat("\\".__ne__)
longstringitem = longstringchar | escapeseq
"""
nonzerodigit = Sat(lambda c: "0" < c <= "9")
octdigit = Sat(lambda c: "0" <= c <= "7")
bindigit = Char("0") | Char("1")
hexdigit = digit | Sat(lambda c: "a" <= c <= "f" or "A" <= c <= "F")
octinteger = Char("0") + (Char("o") | Char("O")) + "".join ** +octdigit | Char("0") + "".join ** +octdigit
from Prelude.ParserCombinators.Entities import *
from Prelude.ParserCombinators.String import *
from Prelude import cons, curry
#http://www.python.jp/doc/release/reference/expressions.html
expression_list = lambda x: curry(cons)**x * -(Char(",") >> x) << Optional(
Char(","))
identifier = (alpha | Char("_")) + "".join**-(alnum | Char("_"))
parens = lambda x: Char("(") >> x << Char(")")
brackets = lambda x: Char("[") >> x << Char("]")
escapeseq = Char("\\") >> ascii
stringprefix = reduce(
Parser.__or__,
map(Char, [
"r", "u", "ur", "R", "U", "UR", "Ur", "uR", "b", "B", "br", "Br", "bR",
"BR"
]))
shortstringchar = lambda quote: Sat(lambda c: c != "\\" and c != "\n" and c !=
quote)
shortstringitem = lambda quote: shortstringchar(quote) | escapeseq
shortstring = Char("'") + "".join**-shortstringitem("'") + Char("'") | Char(
'"') + "".join**-shortstringitem('"') + Char('"')
stringliteral = eval ^ Optional(stringprefix) + shortstring
"""
longstring = String("'''") >> -longstringitem << String("'''") | String('\"\""') >> -longstringitem << String('\""\"')
longstringchar = Sat("\\".__ne__)
longstringitem = longstringchar | escapeseq
