def integer(compiler, cont, arg):
'''integer'''
text = compiler.new_var(il.ConstLocalVar('text'))
pos = compiler.new_var(il.ConstLocalVar('pos'))
p = compiler.new_var(il.LocalVar('p'))
length = compiler.new_var(il.ConstLocalVar('length'))
if isinstance(arg, Var):
arg = arg.interlang()
x = compiler.new_var(il.ConstLocalVar('x'))
return il.Begin((
il.AssignFromList(text, pos, il.parse_state),
il.Assign(length, il.Len(text)),
il.If(il.Ge(pos, length),
il.failcont(il.FALSE),
il.If(il.Not(il.Cle(il.String('0'), il.GetItem(text, pos), il.String('9'))),
il.failcont(il.FALSE),
il.Begin((
il.Assign(p, il.add(pos, il.Integer(1))),
il.while_(il.And(il.Lt(p, length),
il.Cle(il.String('0'),il.GetItem(text, p),il.String('9'))),
il.AddAssign(p, il.Integer(1))),
il.Assign(x, il.Deref(arg)),
il.If(il.IsLogicVar(x),
il.begin(il.SetParseState(il.Tuple(text, p)),
il.SetBinding(x, il.GetItem(text, il.Slice2(pos, p))),
il.append_failcont(compiler,
il.SetParseState(il.Tuple(text, pos)),
il.DelBinding(x)),
cont(il.GetItem(text, pos))),
il.If(il.Isinstance(x, il.String('str')),
il.If(il.Eq(x, il.GetItem(text, il.Slice2(pos, p))),
il.begin(il.append_failcont(compiler,
il.SetParseState(il.Tuple(text, pos))),
il.SetParseState(il.Tuple(text, p)),
cont(il.GetItem(text, pos))),
il.failcont(il.NONE)),
il.RaiseTypeError(x)))))))))
elif isinstance(arg, il.String):
return il.Begin((
il.AssignFromList(text, pos, il.parse_state),
il.Assign(length, il.Len(text)),
il.If(il.Ge(pos, length),
il.failcont(il.FALSE),
il.If(il.Not(il.Cle(il.String('0'), il.GetItem(text, pos), il.String('9'))),
il.failcont(il.FALSE),
il.Begin((
il.Assign(p, il.add(pos, il.Integer(1))),
il.while_(il.And(il.Lt(p, length),
il.Cle(il.String('0'),il.GetItem(text, p),il.String('9'))),
il.AddAssign(p, il.Integer(1))),
il.If(il.Eq(arg, il.GetItem(text, il.Slice2(pos, p))),
il.begin(il.append_failcont(compiler,
il.SetParseState(il.Tuple(text, pos))),
il.SetParseState(il.Tuple(text, p)),
cont(arg)),
il.failcont(il.NONE))))))))
else:
raise CompileTypeError
def string_on_predicate1(compiler, cont, test):
'''return current char and step if @test succeed, where
@test: a python function with one argument, which tests on one char and return True or False
@test must be registered with register_function'''
test = test.interlang()
text = compiler.new_var(il.ConstLocalVar('text'))
pos = compiler.new_var(il.ConstLocalVar('pos'))
length = compiler.new_var(il.ConstLocalVar('length'))
p = compiler.new_var(il.LocalVar('p'))
if not isinstance(test, il.PyFunction):
raise DaoCompileTypeError(test)
return il.Begin((
il.AssignFromList(text, pos, il.parse_state),
il.Assign(length, il.Len(text)),
il.If(il.Ge(pos, length),
il.failcont(il.FALSE),
il.If(il.Call(test, il.GetItem(text, pos)),
il.begin(
il.Assign(p, il.add(pos, il.Integer(1))),
il.While(il.And(il.Lt(p, length), il.Call(test, il.GetItem(text, p))),
il.AddAssign(p, il.Integer(1))),
il.SetParseState(il.Tuple(text, p)),
il.append_failcont(compiler,
il.SetParseState(il.Tuple(text, pos))),
cont(il.GetItem(text, il.Slice2(pos, p)))),
il.failcont(il.FALSE)))))
def between(compiler, cont, lower, upper, mid):
lower1 = compiler.new_var(il.ConstLocalVar('lower'))
upper1 = compiler.new_var(il.ConstLocalVar('upper'))
mid1 = compiler.new_var(il.ConstLocalVar('mid'))
fc = compiler.new_var(il.ConstLocalVar('fc'))
i = compiler.new_var(il.Var('i'))
v = compiler.new_var(il.ConstLocalVar('v'))
return lower.cps(compiler, il.clamda(lower1,
upper.cps(compiler, il.clamda(upper1,
mid.cps(compiler, il.clamda(mid1,
il.If(il.IsLogicVar(mid1),
il.begin(
il.Assign(i, lower1),
il.Assign(fc, il.failcont),
il.SetFailCont(il.clamda(v,
il.If(il.Eq(i, upper1),
il.Begin((
il.Assign(il.failcont, fc),
fc(il.FALSE))),
il.Begin((
il.AddAssign(i, il.Integer(1)),
il.SetBinding(mid1, i),
cont(il.TRUE)))))),
il.SetBinding(mid1, lower1),
cont(il.TRUE)),
il.If(il.Cle(lower1, mid1, upper1),
cont(il.TRUE),
il.failcont(il.FALSE)))))
))))
def literal(compiler, cont, arg):
'''any given instance string'''
text = compiler.new_var(il.ConstLocalVar('text'))
pos = compiler.new_var(il.ConstLocalVar('pos'))
p = compiler.new_var(il.LocalVar('p'))
i = compiler.new_var(il.LocalVar('i'))
x = compiler.new_var(il.ConstLocalVar('x'))
length = compiler.new_var(il.ConstLocalVar('length'))
length2 = compiler.new_var(il.ConstLocalVar('length2'))
if isinstance(arg, Var):
return il.Begin((
il.Assign(x, il.Deref(arg)),
il.AssignFromList(text, pos, il.parse_state),
il.Assign(length, il.Len(text)),
il.Assign(length, il.Len(x)),
il.Assign(i, il.Integer(0)),
il.Assign(p, pos),
il.while_(il.and_(il.Lt(i, length2), il.Lt(p, length), il.Eq(il.GetItem(text, p), il.GetItem(x, i))),
il.AddAssign(p, il.Integer(1))),
il.If(il.Lt(i, length2),
il.failcont(il.NONE),
il.begin(il.append_failcont(compiler,
il.SetParseState(il.Tuple(text, pos))),
il.SetParseState(il.Tuple(text, p)),
cont(arg)))))
elif isinstance(arg, String):
arg = arg.interlang()
return il.Begin((
il.AssignFromList(text, pos, il.parse_state),
il.Assign(length, il.Len(text)),
il.Assign(length2, il.Len(arg)),
il.Assign(i, il.Integer(0)),
il.Assign(p, pos),
il.while_(il.and_(il.Lt(i, length2), il.Lt(p, length), il.Eq(il.GetItem(text, p), il.GetItem(arg, i))),
il.AddAssign(p, il.Integer(1)),
il.AddAssign(i, il.Integer(1)),
),
il.If(il.Lt(i, length2),
il.failcont(il.NONE),
il.begin(il.append_failcont(compiler,
il.SetParseState(il.Tuple(text, pos))),
il.SetParseState(il.Tuple(text, p)),
cont(arg)))))
else:
raise CompileTypeError
def quasiquote(self, compiler, cont):
result = compiler.new_var(il.LocalVar('result'))
vars = tuple(compiler.new_var(il.ConstLocalVar('a'+repr(i))) for i in range(len(self.args)))
body = (il.Assign(result, il.empty_list),)+tuple(
il.If(il.Isinstance(var, il.Klass('UnquoteSplice')),
il.AddAssign(result, il.Call(il.Symbol('list'), il.Attr(var, il.Symbol('item')))),
il.ListAppend(result, var),
) for var in vars)+(
cont(il.Call(il.Klass(self.__class__.__name__), il.QuoteItem(self.function), il.MakeTuple(result))),)
fun = il.begin(*body)
for var, arg in reversed(zip(vars, self.args)):
fun = arg.quasiquote(compiler, il.clamda(var, fun))
return fun
def times1(compiler, cont, item, expect_times):
expect_times = expect_times.interlang()
i = compiler.new_var(il.Var('i'))
times_cont = compiler.new_var(il.ConstLocalVar('times_cont'))
v = compiler.new_var(il.ConstLocalVar('v'))
return il.begin(
il.Assert(
il.And(il.Isinstance(expect_times, il.Int),
il.Gt(expect_times, il.Integer(0)))),
il.Assign(i, il.Integer(0)),
il.cfunction(
times_cont, v,
item.cps(
compiler,
il.clamda(
v, il.AddAssign(i, il.Integer(1)),
il.If(il.Eq(i, expect_times), cont(v),
times_cont(il.TRUE)))))(il.TRUE))
def times2(compiler, cont, item, expect_times, template, result):
expect_times = expect_times.interlang()
template = template.interlang()
result = result.interlang()
i = compiler.new_var(il.Var('i'))
times_cont = compiler.new_var(il.ConstLocalVar('times_cont'))
v = compiler.new_var(il.ConstLocalVar('v'))
return il.begin(
il.Assert(
il.And(il.Isinstance(expect_times, il.Int),
il.Gt(expect_times, il.Integer(0)))),
il.Assign(result, il.empty_list), il.Assign(i, il.Integer(0)),
il.cfunction(
times_cont, v,
item.cps(
compiler,
il.clamda(
v, il.AddAssign(i, il.Integer(1)),
il.ListAppend(result, il.GetValue(template)),
il.If(il.Eq(i, expect_times), cont(v),
times_cont(il.TRUE)))))(il.TRUE))