本文整理汇总了Python中pypy.rlib.parsing.ebnfparse.parse_ebnf函数的典型用法代码示例。如果您正苦于以下问题：Python parse_ebnf函数的具体用法？Python parse_ebnf怎么用？Python parse_ebnf使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了parse_ebnf函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的Python代码示例。
示例1: test_parse_python_args
def test_parse_python_args():
regexs, rules, ToAST = parse_ebnf("""
IGNORE: " ";
NAME: "[a-zA-Z_]*";
NUMBER: "0|[1-9][0-9]*";
parameters: ["("] >varargslist<? [")"];
varargslist: (fpdef ("=" test)? [","])* star_or_starstarargs |
fpdef ("=" test)? ([","] fpdef ("=" test)?)* [","]?;
star_or_starstarargs: "*" NAME [","] "**" NAME | "*" NAME | "**" NAME;
fpdef: <NAME> | "(" <fplist> ")";
fplist: fpdef ([","] fpdef)* [","]?;
test: NUMBER;
""")
parse = make_parse_function(regexs, rules)
t = parse("(a)").visit(ToAST())[0]
t = parse("(a,)").visit(ToAST())[0]
t = parse("(a,b,c,d)").visit(ToAST())[0]
t = parse("(a,b,c,d,)").visit(ToAST())[0]
t = parse("((a, b, c),b,c,d,)").visit(ToAST())[0]
t = parse("((a, b, (d, e, (f, g))), b, *args, **kwargs)").visit(ToAST())[0]
t = parse("((a, b, c),b,c,d,*args)").visit(ToAST())[0]
t = parse("((a, b, c),b,c,d,**kwargs)").visit(ToAST())[0]
t = parse("((a, b, c),b,c,d,*args, **args)").visit(ToAST())[0]
t = parse("()").visit(ToAST())[0]
t = parse("(*args, **args)").visit(ToAST())[0]
t = parse("(a=1)").visit(ToAST())[0]
t = parse("(a=2,)").visit(ToAST())[0]
t = parse("(a,b,c,d=3)").visit(ToAST())[0]
t = parse("(a,b,c,d=4,)").visit(ToAST())[0]
t = parse("((a, b, c),b,c,(c, d)=1,)").visit(ToAST())[0]
t = parse("((a, b, c),b,c,d=1,*args)").visit(ToAST())[0]
t = parse("((a, b, c),b,c,d=2,**kwargs)").visit(ToAST())[0]
t = parse("((a, b, c),b,c,(c, d)=4,*args, **args)").visit(ToAST())[0]
t = parse("(self, a, b, args)").visit(ToAST())[0]
开发者ID:Debug-Orz，项目名称:Sypy，代码行数:34，代码来源:test_pythonparse.py
示例2: make_parser_from_file
def make_parser_from_file(filename):
try:
t = py.path.local(filename).read(mode='U')
regexs, rules, ToAST = parse_ebnf(t)
except ParseError, e:
print e.nice_error_message(filename=filename, source=t)
raise
开发者ID:Debug-Orz，项目名称:Sypy，代码行数:7，代码来源:main.py
示例3: setup_class
def setup_class(cls):
from pypy.rlib.parsing.parsing import PackratParser
regexs, rules, ToAST = parse_ebnf(grammar)
cls.ToAST = ToAST()
cls.parser = PackratParser(rules, rules[0].nonterminal)
cls.regexs = regexs
names, regexs = zip(*regexs)
cls.lexer = Lexer(list(regexs), list(names))
开发者ID:Debug-Orz，项目名称:Sypy，代码行数:8，代码来源:test_pythonparse.py
示例4: parse_js
def parse_js( path ):
regexs, rules, ToAST = parse_ebnf(ebnf)
parse = make_parse_function(regexs, rules, eof=True)
doc = open(path, 'r').read()
t = parse(doc)
t = ToAST().transform(t)
return t
开发者ID:khskrede，项目名称:mehh，代码行数:8，代码来源:parser.py
示例5: test_nest_star_and_questionmark
def test_nest_star_and_questionmark():
regexs, rules, ToAST = parse_ebnf("""
IGNORE: " ";
y: x "END";
x: "B" ("A" "B"?)*;
""")
parse = make_parse_function(regexs, rules)
t = ToAST().transform(parse("B A B A B END"))
t = ToAST().transform(parse("B A A A END"))
开发者ID:alkorzt，项目名称:pypy，代码行数:9，代码来源:test_ebnfparse.py
示例6: test_mix_star_and_questionmark
def test_mix_star_and_questionmark():
regexs, rules, ToAST = parse_ebnf("""
IGNORE: " ";
y: x "END";
x: "B" ("A" "B")* "A"?;
""")
parse = make_parse_function(regexs, rules)
t = ToAST().transform(parse("B A B END"))
assert len(t.children[0].children) == 3
开发者ID:alkorzt，项目名称:pypy，代码行数:9，代码来源:test_ebnfparse.py
示例7: test_example1
def test_example1():
regexs, rules, ToAST = parse_ebnf("""
IGNORE: " ";
n: "a" "b" "c" m;
m: "(" <n> ")" | "d";
""")
parse = make_parse_function(regexs, rules)
t = parse("a b c (a b c d)")
t = ToAST().transform(t)
开发者ID:alkorzt，项目名称:pypy，代码行数:9，代码来源:test_ebnfparse.py
示例8: test_leftrecursion
def test_leftrecursion():
regexs, rules, ToAST = parse_ebnf("""
A: "a";
B: "b";
IGNORE: " |\n";
expr1: A | expr2 A;
expr2: expr1 B;
""")
py.test.raises(AssertionError, make_parse_function, regexs, rules, True)
开发者ID:alkorzt，项目名称:pypy，代码行数:9，代码来源:test_ebnfparse.py
示例9: test_escape_quotes
def test_escape_quotes():
regexs, rules, ToAST = parse_ebnf("""
QUOTE: "a\\"";
IGNORE: " ";
expr: QUOTE "\\"" EOF;""")
parse = make_parse_function(regexs, rules, eof=True)
t = parse('a" "')
assert t.children[0].additional_info == 'a"'
assert t.children[1].additional_info == '"'
开发者ID:alkorzt，项目名称:pypy，代码行数:9，代码来源:test_ebnfparse.py
示例10: test_example2
def test_example2():
regexs, rules, ToAST = parse_ebnf("""
IGNORE: " ";
DECIMAL: "0|[1-9][0-9]*";
list: DECIMAL >list< | DECIMAL;
""")
parse = make_parse_function(regexs, rules)
t = parse("1 2 3 4 5")
t = ToAST().transform(t)
开发者ID:alkorzt，项目名称:pypy，代码行数:9，代码来源:test_ebnfparse.py
示例11: test_grouping_only_parens
def test_grouping_only_parens():
regexs, rules, ToAST = parse_ebnf("""
IGNORE: " ";
x: ["m"] ("a" "b") "c" | <y>;
y: ["n"] "a" "b" "c";
""")
parse = make_parse_function(regexs, rules)
t0 = ToAST().transform(parse("m a b c"))
t1 = ToAST().transform(parse("n a b c"))
assert len(t0.children) == len(t1.children)
开发者ID:alkorzt，项目名称:pypy，代码行数:10，代码来源:test_ebnfparse.py
示例12: test_double_star
def test_double_star():
regexs, rules, ToAST = parse_ebnf("""
IGNORE: " |\n";
start: "a"* "b"* "c";
""")
parse = make_parse_function(regexs, rules, eof=True)
for s in ["a a a b b c", "a b b c", "a a c", "b b c", "c"]:
t = parse(s)
t = ToAST().transform(t)
assert [c.additional_info for c in t.children] == s.split()
开发者ID:alkorzt，项目名称:pypy，代码行数:10，代码来源:test_ebnfparse.py
示例13: parse
def parse(code):
GFILE = open_file_as_stream(abspath(join(dirname(__file__), "grammar.txt")))
t = None
try:
t = GFILE.read()
regexs, rules, ToAST = parse_ebnf(t)
except ParseError,e:
print e.nice_error_message(filename=str(GFILE),source=t)
raise
开发者ID:heynemann，项目名称:aquesta，代码行数:10，代码来源:aquesta.py
示例14: test_starred_star
def test_starred_star():
regexs, rules, ToAST = parse_ebnf("""
IGNORE: " ";
start: ("b"* "a")* EOF;
""")
parse = make_parse_function(regexs, rules, eof=True)
for s in ["b b b b a b b a", "b a b a", "a a", ""]:
t = parse(s)
t = ToAST().transform(t)
assert [c.additional_info for c in t.children] == (s + " EOF").split()
开发者ID:alkorzt，项目名称:pypy，代码行数:10，代码来源:test_ebnfparse.py
示例15: test_clash_literal_nonterminal
def test_clash_literal_nonterminal():
regexs, rules, ToAST = parse_ebnf("""
IGNORE: " ";
y: x "END";
x: "y";
a: "x";
""")
parse = make_parse_function(regexs, rules)
py.test.raises(ParseError, parse, "x END")
parse("y END")
开发者ID:alkorzt，项目名称:pypy，代码行数:10，代码来源:test_ebnfparse.py
示例16: test_lexer_end_string_corner_case
def test_lexer_end_string_corner_case():
regexs, rules, ToAST = parse_ebnf("""
NUMBER: "[0-9]*(\.[0-9]+)?";
ATOM: "\.";
IGNORE: " ";
expr: NUMBER ATOM EOF;
""")
parse = make_parse_function(regexs, rules, eof=True)
t = parse("2.")
assert t.children[0].additional_info == "2"
assert t.children[1].additional_info == "."
开发者ID:alkorzt，项目名称:pypy，代码行数:11，代码来源:test_ebnfparse.py
示例17: test_check_for_missing_names
def test_check_for_missing_names():
regexs, rules, ToAST = parse_ebnf("""
IGNORE: " ";
DECIMAL: "0|[1-9][0-9]*";
additive: multitive "+" additive | multitive;
multitive: primary "*" multitive | primari; # observe the typo
# the following too!
primary: "(" additive ")" | DECIMAL;
""")
excinfo = py.test.raises(ValueError, make_parse_function, regexs, rules)
assert "primari" in str(excinfo.value)
开发者ID:alkorzt，项目名称:pypy，代码行数:11，代码来源:test_ebnfparse.py
示例18: test_quoting
def test_quoting():
regexs, rules, ToAST = parse_ebnf("""
ATOM: "[a-z]*";
IGNORE: " ";
list: ATOM "\n" ATOM;
""")
parse = make_parse_function(regexs, rules, eof=True)
t = parse("""abc
abd""")
assert len(t.children) == 3
assert t.children[1].additional_info == "\n"
开发者ID:alkorzt，项目名称:pypy，代码行数:11，代码来源:test_ebnfparse.py
示例19: test_bug
def test_bug():
# this could be seen as using the transformer in the wrong way
# but I have no clue how to detect this situation
py.test.skip("fix me somehow")
regexs, rules, ToAST = parse_ebnf("""
IGNORE: " ";
DECIMAL: "0|[1-9][0-9]*";
list: DECIMAL >list< | <DECIMAL>;
""")
parse = make_parse_function(regexs, rules)
t = parse("1 2 3 4 5")
t = ToAST().transform(t)
开发者ID:alkorzt，项目名称:pypy，代码行数:12，代码来源:test_ebnfparse.py
示例20: test_transform_greater_than
def test_transform_greater_than():
regexs, rules, ToAST = parse_ebnf("""
IGNORE: " ";
x: ["a"] >b< "c";
b: "A" "A";
""")
parse = make_parse_function(regexs, rules)
t = parse("a A A c")
t = ToAST().transform(t)
assert len(t.children) == 3
assert t.children[0].additional_info == "A"
assert t.children[1].additional_info == "A"
assert t.children[2].additional_info == "c"
开发者ID:alkorzt，项目名称:pypy，代码行数:13，代码来源:test_ebnfparse.py
注：本文中的pypy.rlib.parsing.ebnfparse.parse_ebnf函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。 |
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