| # pylint: disable=line-too-long |
| |
| import sys |
| |
| |
| if sys.version_info[0] < 3: |
| # pylint: disable=redefined-builtin |
| chr = unichr |
| range = xrange |
| str = unicode |
| |
| |
| class Parser(object): |
| def __init__(self, msg, fname): |
| self.msg = str(msg) |
| self.end = len(self.msg) |
| self.fname = fname |
| self.val = None |
| self.pos = 0 |
| self.failed = False |
| self.errpos = 0 |
| self._scopes = [] |
| self._cache = {} |
| |
| def parse(self): |
| self._grammar_() |
| if self.failed: |
| return None, self._err_str(), self.errpos |
| return self.val, None, self.pos |
| |
| def _err_str(self): |
| lineno, colno = self._err_offsets() |
| if self.errpos == len(self.msg): |
| thing = 'end of input' |
| else: |
| thing = '"%s"' % self.msg[self.errpos] |
| return '%s:%d Unexpected %s at column %d' % ( |
| self.fname, lineno, thing, colno) |
| |
| def _err_offsets(self): |
| lineno = 1 |
| colno = 1 |
| for i in range(self.errpos): |
| if self.msg[i] == '\n': |
| lineno += 1 |
| colno = 1 |
| else: |
| colno += 1 |
| return lineno, colno |
| |
| def _succeed(self, v, newpos=None): |
| self.val = v |
| self.failed = False |
| if newpos is not None: |
| self.pos = newpos |
| |
| def _fail(self): |
| self.val = None |
| self.failed = True |
| if self.pos >= self.errpos: |
| self.errpos = self.pos |
| |
| def _rewind(self, newpos): |
| self._succeed(None, newpos) |
| |
| def _bind(self, rule, var): |
| rule() |
| if not self.failed: |
| self._set(var, self.val) |
| |
| def _not(self, rule): |
| p = self.pos |
| rule() |
| if self.failed: |
| self._succeed(None, p) |
| else: |
| self._rewind(p) |
| self._fail() |
| |
| def _opt(self, rule): |
| p = self.pos |
| rule() |
| if self.failed: |
| self._succeed([], p) |
| else: |
| self._succeed([self.val]) |
| |
| def _plus(self, rule): |
| vs = [] |
| rule() |
| vs.append(self.val) |
| if self.failed: |
| return |
| self._star(rule, vs) |
| |
| def _star(self, rule, vs=None): |
| vs = vs or [] |
| while not self.failed: |
| p = self.pos |
| rule() |
| if self.failed: |
| self._rewind(p) |
| break |
| else: |
| vs.append(self.val) |
| self._succeed(vs) |
| |
| def _seq(self, rules): |
| for rule in rules: |
| rule() |
| if self.failed: |
| return |
| |
| def _choose(self, rules): |
| p = self.pos |
| for rule in rules[:-1]: |
| rule() |
| if not self.failed: |
| return |
| self._rewind(p) |
| rules[-1]() |
| |
| def _ch(self, ch): |
| p = self.pos |
| if p < self.end and self.msg[p] == ch: |
| self._succeed(ch, self.pos + 1) |
| else: |
| self._fail() |
| |
| def _str(self, s, l): |
| p = self.pos |
| if (p + l <= self.end) and self.msg[p:p + l] == s: |
| self._succeed(s, self.pos + l) |
| else: |
| self._fail() |
| |
| def _range(self, i, j): |
| p = self.pos |
| if p != self.end and ord(i) <= ord(self.msg[p]) <= ord(j): |
| self._succeed(self.msg[p], self.pos + 1) |
| else: |
| self._fail() |
| |
| def _push(self, name): |
| self._scopes.append((name, {})) |
| |
| def _pop(self, name): |
| actual_name, _ = self._scopes.pop() |
| assert name == actual_name |
| |
| def _get(self, var): |
| return self._scopes[-1][1][var] |
| |
| def _set(self, var, val): |
| self._scopes[-1][1][var] = val |
| |
| def _is_unicat(self, var, cat): |
| import unicodedata |
| return unicodedata.category(var) == cat |
| |
| def _join(self, s, vs): |
| return s.join(vs) |
| |
| def _xtou(self, s): |
| return chr(int(s, base=16)) |
| |
| def _grammar_(self): |
| self._push('grammar') |
| self._seq([self._sp_, lambda: self._bind(self._value_, 'v'), self._sp_, |
| self._end_, lambda: self._succeed(self._get('v'))]) |
| self._pop('grammar') |
| |
| def _sp_(self): |
| self._star(self._ws_) |
| |
| def _ws_(self): |
| self._choose([self._ws__c0_, self._eol_, self._comment_, self._ws__c3_, |
| self._ws__c4_, self._ws__c5_, self._ws__c6_, |
| self._ws__c7_, self._ws__c8_]) |
| |
| def _ws__c0_(self): |
| self._ch(' ') |
| |
| def _ws__c3_(self): |
| self._ch('\t') |
| |
| def _ws__c4_(self): |
| self._ch('\v') |
| |
| def _ws__c5_(self): |
| self._ch('\f') |
| |
| def _ws__c6_(self): |
| self._ch('\u00a0') |
| |
| def _ws__c7_(self): |
| self._ch(u'\ufeff') |
| |
| def _ws__c8_(self): |
| self._push('ws__c8') |
| self._seq([lambda: self._bind(self._anything_, 'x'), self._ws__c8__s1_, |
| lambda: self._succeed(self._get('x'))]) |
| self._pop('ws__c8') |
| |
| def _ws__c8__s1_(self): |
| v = self._is_unicat(self._get('x'), 'Zs') |
| if v: |
| self._succeed(v) |
| else: |
| self._fail() |
| |
| def _eol_(self): |
| self._choose([self._eol__c0_, self._eol__c1_, self._eol__c2_, |
| self._eol__c3_, self._eol__c4_]) |
| |
| def _eol__c0_(self): |
| self._seq([lambda: self._ch('\r'), lambda: self._ch('\n')]) |
| |
| def _eol__c1_(self): |
| self._ch('\r') |
| |
| def _eol__c2_(self): |
| self._ch('\n') |
| |
| def _eol__c3_(self): |
| self._ch(u'\u2028') |
| |
| def _eol__c4_(self): |
| self._ch(u'\u2029') |
| |
| def _comment_(self): |
| self._choose([self._comment__c0_, self._comment__c1_]) |
| |
| def _comment__c0_(self): |
| self._seq([lambda: self._str('//', 2), |
| lambda: self._star(self._comment__c0__s1_p_)]) |
| |
| def _comment__c0__s1_p_(self): |
| self._seq([lambda: self._not(self._eol_), self._anything_]) |
| |
| def _comment__c1_(self): |
| self._seq([lambda: self._str('/*', 2), self._comment__c1__s1_, |
| lambda: self._str('*/', 2)]) |
| |
| def _comment__c1__s1_(self): |
| self._star(lambda: self._seq([self._comment__c1__s1_p__s0_, self._anything_])) |
| |
| def _comment__c1__s1_p__s0_(self): |
| self._not(lambda: self._str('*/', 2)) |
| |
| def _value_(self): |
| self._choose([self._value__c0_, self._value__c1_, self._value__c2_, |
| self._value__c3_, self._value__c4_, self._value__c5_, |
| self._value__c6_]) |
| |
| def _value__c0_(self): |
| self._seq([lambda: self._str('null', 4), lambda: self._succeed('None')]) |
| |
| def _value__c1_(self): |
| self._seq([lambda: self._str('true', 4), lambda: self._succeed('True')]) |
| |
| def _value__c2_(self): |
| self._seq([lambda: self._str('false', 5), |
| lambda: self._succeed('False')]) |
| |
| def _value__c3_(self): |
| self._push('value__c3') |
| self._seq([lambda: self._bind(self._object_, 'v'), |
| lambda: self._succeed(['object', self._get('v')])]) |
| self._pop('value__c3') |
| |
| def _value__c4_(self): |
| self._push('value__c4') |
| self._seq([lambda: self._bind(self._array_, 'v'), |
| lambda: self._succeed(['array', self._get('v')])]) |
| self._pop('value__c4') |
| |
| def _value__c5_(self): |
| self._push('value__c5') |
| self._seq([lambda: self._bind(self._string_, 'v'), |
| lambda: self._succeed(['string', self._get('v')])]) |
| self._pop('value__c5') |
| |
| def _value__c6_(self): |
| self._push('value__c6') |
| self._seq([lambda: self._bind(self._num_literal_, 'v'), |
| lambda: self._succeed(['number', self._get('v')])]) |
| self._pop('value__c6') |
| |
| def _object_(self): |
| self._choose([self._object__c0_, self._object__c1_]) |
| |
| def _object__c0_(self): |
| self._push('object__c0') |
| self._seq([lambda: self._ch('{'), self._sp_, |
| lambda: self._bind(self._member_list_, 'v'), self._sp_, |
| lambda: self._ch('}'), lambda: self._succeed(self._get('v'))]) |
| self._pop('object__c0') |
| |
| def _object__c1_(self): |
| self._seq([lambda: self._ch('{'), self._sp_, lambda: self._ch('}'), |
| lambda: self._succeed([])]) |
| |
| def _array_(self): |
| self._choose([self._array__c0_, self._array__c1_]) |
| |
| def _array__c0_(self): |
| self._push('array__c0') |
| self._seq([lambda: self._ch('['), self._sp_, |
| lambda: self._bind(self._element_list_, 'v'), self._sp_, |
| lambda: self._ch(']'), lambda: self._succeed(self._get('v'))]) |
| self._pop('array__c0') |
| |
| def _array__c1_(self): |
| self._seq([lambda: self._ch('['), self._sp_, lambda: self._ch(']'), |
| lambda: self._succeed([])]) |
| |
| def _string_(self): |
| self._choose([self._string__c0_, self._string__c1_]) |
| |
| def _string__c0_(self): |
| self._push('string__c0') |
| self._seq([self._squote_, self._string__c0__s1_, self._squote_, |
| lambda: self._succeed(self._join('', self._get('cs')))]) |
| self._pop('string__c0') |
| |
| def _string__c0__s1_(self): |
| self._bind(lambda: self._star(self._sqchar_), 'cs') |
| |
| def _string__c1_(self): |
| self._push('string__c1') |
| self._seq([self._dquote_, self._string__c1__s1_, self._dquote_, |
| lambda: self._succeed(self._join('', self._get('cs')))]) |
| self._pop('string__c1') |
| |
| def _string__c1__s1_(self): |
| self._bind(lambda: self._star(self._dqchar_), 'cs') |
| |
| def _sqchar_(self): |
| self._choose([self._sqchar__c0_, self._sqchar__c1_, self._sqchar__c2_]) |
| |
| def _sqchar__c0_(self): |
| self._push('sqchar__c0') |
| self._seq([self._bslash_, lambda: self._bind(self._esc_char_, 'c'), |
| lambda: self._succeed(self._get('c'))]) |
| self._pop('sqchar__c0') |
| |
| def _sqchar__c1_(self): |
| self._seq([self._bslash_, self._eol_, lambda: self._succeed('')]) |
| |
| def _sqchar__c2_(self): |
| self._push('sqchar__c2') |
| self._seq([lambda: self._not(self._bslash_), |
| lambda: self._not(self._squote_), |
| lambda: self._not(self._eol_), |
| lambda: self._bind(self._anything_, 'c'), |
| lambda: self._succeed(self._get('c'))]) |
| self._pop('sqchar__c2') |
| |
| def _dqchar_(self): |
| self._choose([self._dqchar__c0_, self._dqchar__c1_, self._dqchar__c2_]) |
| |
| def _dqchar__c0_(self): |
| self._push('dqchar__c0') |
| self._seq([self._bslash_, lambda: self._bind(self._esc_char_, 'c'), |
| lambda: self._succeed(self._get('c'))]) |
| self._pop('dqchar__c0') |
| |
| def _dqchar__c1_(self): |
| self._seq([self._bslash_, self._eol_, lambda: self._succeed('')]) |
| |
| def _dqchar__c2_(self): |
| self._push('dqchar__c2') |
| self._seq([lambda: self._not(self._bslash_), |
| lambda: self._not(self._dquote_), |
| lambda: self._not(self._eol_), |
| lambda: self._bind(self._anything_, 'c'), |
| lambda: self._succeed(self._get('c'))]) |
| self._pop('dqchar__c2') |
| |
| def _bslash_(self): |
| self._ch('\\') |
| |
| def _squote_(self): |
| self._ch("'") |
| |
| def _dquote_(self): |
| self._ch('"') |
| |
| def _esc_char_(self): |
| self._choose([self._esc_char__c0_, self._esc_char__c1_, |
| self._esc_char__c2_, self._esc_char__c3_, |
| self._esc_char__c4_, self._esc_char__c5_, |
| self._esc_char__c6_, self._esc_char__c7_, |
| self._esc_char__c8_, self._esc_char__c9_, |
| self._esc_char__c10_]) |
| |
| def _esc_char__c0_(self): |
| self._seq([lambda: self._ch('b'), lambda: self._succeed('\b')]) |
| |
| def _esc_char__c1_(self): |
| self._seq([lambda: self._ch('f'), lambda: self._succeed('\f')]) |
| |
| def _esc_char__c10_(self): |
| self._push('esc_char__c10') |
| self._seq([lambda: self._bind(self._unicode_esc_, 'c'), |
| lambda: self._succeed(self._get('c'))]) |
| self._pop('esc_char__c10') |
| |
| def _esc_char__c2_(self): |
| self._seq([lambda: self._ch('n'), lambda: self._succeed('\n')]) |
| |
| def _esc_char__c3_(self): |
| self._seq([lambda: self._ch('r'), lambda: self._succeed('\r')]) |
| |
| def _esc_char__c4_(self): |
| self._seq([lambda: self._ch('t'), lambda: self._succeed('\t')]) |
| |
| def _esc_char__c5_(self): |
| self._seq([lambda: self._ch('v'), lambda: self._succeed('\v')]) |
| |
| def _esc_char__c6_(self): |
| self._seq([self._squote_, lambda: self._succeed("'")]) |
| |
| def _esc_char__c7_(self): |
| self._seq([self._dquote_, lambda: self._succeed('"')]) |
| |
| def _esc_char__c8_(self): |
| self._seq([self._bslash_, lambda: self._succeed('\\')]) |
| |
| def _esc_char__c9_(self): |
| self._push('esc_char__c9') |
| self._seq([lambda: self._bind(self._hex_esc_, 'c'), |
| lambda: self._succeed(self._get('c'))]) |
| self._pop('esc_char__c9') |
| |
| def _hex_esc_(self): |
| self._push('hex_esc') |
| self._seq([lambda: self._ch('x'), lambda: self._bind(self._hex_, 'h1'), |
| lambda: self._bind(self._hex_, 'h2'), |
| lambda: self._succeed(self._xtou(self._get('h1') + self._get('h2')))]) |
| self._pop('hex_esc') |
| |
| def _unicode_esc_(self): |
| self._push('unicode_esc') |
| self._seq([lambda: self._ch('u'), lambda: self._bind(self._hex_, 'a'), |
| lambda: self._bind(self._hex_, 'b'), |
| lambda: self._bind(self._hex_, 'c'), |
| lambda: self._bind(self._hex_, 'd'), |
| lambda: self._succeed(self._xtou(self._get('a') + self._get('b') + self._get('c') + self._get('d')))]) |
| self._pop('unicode_esc') |
| |
| def _element_list_(self): |
| self._push('element_list') |
| self._seq([lambda: self._bind(self._value_, 'v'), |
| self._element_list__s1_, self._sp_, self._element_list__s3_, |
| lambda: self._succeed([self._get('v')] + self._get('vs'))]) |
| self._pop('element_list') |
| |
| def _element_list__s1_(self): |
| self._bind(lambda: self._star(self._element_list__s1_l_p_), 'vs') |
| |
| def _element_list__s1_l_p_(self): |
| self._seq([self._sp_, lambda: self._ch(','), self._sp_, self._value_]) |
| |
| def _element_list__s3_(self): |
| self._opt(lambda: self._ch(',')) |
| |
| def _member_list_(self): |
| self._push('member_list') |
| self._seq([lambda: self._bind(self._member_, 'm'), |
| self._member_list__s1_, self._sp_, self._member_list__s3_, |
| lambda: self._succeed([self._get('m')] + self._get('ms'))]) |
| self._pop('member_list') |
| |
| def _member_list__s1_(self): |
| self._bind(lambda: self._star(self._member_list__s1_l_p_), 'ms') |
| |
| def _member_list__s1_l_p_(self): |
| self._seq([self._sp_, lambda: self._ch(','), self._sp_, self._member_]) |
| |
| def _member_list__s3_(self): |
| self._opt(lambda: self._ch(',')) |
| |
| def _member_(self): |
| self._choose([self._member__c0_, self._member__c1_]) |
| |
| def _member__c0_(self): |
| self._push('member__c0') |
| self._seq([lambda: self._bind(self._string_, 'k'), self._sp_, |
| lambda: self._ch(':'), self._sp_, |
| lambda: self._bind(self._value_, 'v'), |
| lambda: self._succeed([self._get('k'), self._get('v')])]) |
| self._pop('member__c0') |
| |
| def _member__c1_(self): |
| self._push('member__c1') |
| self._seq([lambda: self._bind(self._ident_, 'k'), self._sp_, |
| lambda: self._ch(':'), self._sp_, |
| lambda: self._bind(self._value_, 'v'), |
| lambda: self._succeed([self._get('k'), self._get('v')])]) |
| self._pop('member__c1') |
| |
| def _member_list_(self): |
| self._push('member_list') |
| self._seq([lambda: self._bind(self._member_, 'm'), |
| self._member_list__s1_, self._sp_, self._member_list__s3_, |
| lambda: self._succeed([self._get('m')] + self._get('ms'))]) |
| self._pop('member_list') |
| |
| def _member_list__s1_(self): |
| self._bind(lambda: self._star(self._member_list__s1_l_p_), 'ms') |
| |
| def _member_list__s1_l_p_(self): |
| self._seq([self._sp_, lambda: self._ch(','), self._sp_, self._member_]) |
| |
| def _member_list__s3_(self): |
| self._opt(lambda: self._ch(',')) |
| |
| def _ident_(self): |
| self._push('ident') |
| self._seq([lambda: self._bind(self._id_start_, 'hd'), self._ident__s1_, |
| lambda: self._succeed(self._join('', [self._get('hd')] + self._get('tl')))]) |
| self._pop('ident') |
| |
| def _ident__s1_(self): |
| self._bind(lambda: self._star(self._id_continue_), 'tl') |
| |
| def _id_start_(self): |
| self._choose([self._ascii_id_start_, self._other_id_start_, |
| self._id_start__c2_]) |
| |
| def _id_start__c2_(self): |
| self._seq([self._bslash_, self._unicode_esc_]) |
| |
| def _ascii_id_start_(self): |
| self._choose([self._ascii_id_start__c0_, self._ascii_id_start__c1_, |
| self._ascii_id_start__c2_, self._ascii_id_start__c3_]) |
| |
| def _ascii_id_start__c0_(self): |
| self._range('a', 'z') |
| |
| def _ascii_id_start__c1_(self): |
| self._range('A', 'Z') |
| |
| def _ascii_id_start__c2_(self): |
| self._ch('$') |
| |
| def _ascii_id_start__c3_(self): |
| self._ch('_') |
| |
| def _other_id_start_(self): |
| self._choose([self._other_id_start__c0_, self._other_id_start__c1_, |
| self._other_id_start__c2_, self._other_id_start__c3_, |
| self._other_id_start__c4_, self._other_id_start__c5_]) |
| |
| def _other_id_start__c0_(self): |
| self._push('other_id_start__c0') |
| self._seq([lambda: self._bind(self._anything_, 'x'), |
| self._other_id_start__c0__s1_, |
| lambda: self._succeed(self._get('x'))]) |
| self._pop('other_id_start__c0') |
| |
| def _other_id_start__c0__s1_(self): |
| v = self._is_unicat(self._get('x'), 'Ll') |
| if v: |
| self._succeed(v) |
| else: |
| self._fail() |
| |
| def _other_id_start__c1_(self): |
| self._push('other_id_start__c1') |
| self._seq([lambda: self._bind(self._anything_, 'x'), |
| self._other_id_start__c1__s1_, |
| lambda: self._succeed(self._get('x'))]) |
| self._pop('other_id_start__c1') |
| |
| def _other_id_start__c1__s1_(self): |
| v = self._is_unicat(self._get('x'), 'Lm') |
| if v: |
| self._succeed(v) |
| else: |
| self._fail() |
| |
| def _other_id_start__c2_(self): |
| self._push('other_id_start__c2') |
| self._seq([lambda: self._bind(self._anything_, 'x'), |
| self._other_id_start__c2__s1_, |
| lambda: self._succeed(self._get('x'))]) |
| self._pop('other_id_start__c2') |
| |
| def _other_id_start__c2__s1_(self): |
| v = self._is_unicat(self._get('x'), 'Lo') |
| if v: |
| self._succeed(v) |
| else: |
| self._fail() |
| |
| def _other_id_start__c3_(self): |
| self._push('other_id_start__c3') |
| self._seq([lambda: self._bind(self._anything_, 'x'), |
| self._other_id_start__c3__s1_, |
| lambda: self._succeed(self._get('x'))]) |
| self._pop('other_id_start__c3') |
| |
| def _other_id_start__c3__s1_(self): |
| v = self._is_unicat(self._get('x'), 'Lt') |
| if v: |
| self._succeed(v) |
| else: |
| self._fail() |
| |
| def _other_id_start__c4_(self): |
| self._push('other_id_start__c4') |
| self._seq([lambda: self._bind(self._anything_, 'x'), |
| self._other_id_start__c4__s1_, |
| lambda: self._succeed(self._get('x'))]) |
| self._pop('other_id_start__c4') |
| |
| def _other_id_start__c4__s1_(self): |
| v = self._is_unicat(self._get('x'), 'Lu') |
| if v: |
| self._succeed(v) |
| else: |
| self._fail() |
| |
| def _other_id_start__c5_(self): |
| self._push('other_id_start__c5') |
| self._seq([lambda: self._bind(self._anything_, 'x'), |
| self._other_id_start__c5__s1_, |
| lambda: self._succeed(self._get('x'))]) |
| self._pop('other_id_start__c5') |
| |
| def _other_id_start__c5__s1_(self): |
| v = self._is_unicat(self._get('x'), 'Nl') |
| if v: |
| self._succeed(v) |
| else: |
| self._fail() |
| |
| def _id_continue_(self): |
| self._choose([self._ascii_id_start_, self._digit_, |
| self._other_id_start_, self._id_continue__c3_, |
| self._id_continue__c4_, self._id_continue__c5_, |
| self._id_continue__c6_, self._id_continue__c7_, |
| self._id_continue__c8_, self._id_continue__c9_]) |
| |
| def _id_continue__c3_(self): |
| self._push('id_continue__c3') |
| self._seq([lambda: self._bind(self._anything_, 'x'), |
| self._id_continue__c3__s1_, |
| lambda: self._succeed(self._get('x'))]) |
| self._pop('id_continue__c3') |
| |
| def _id_continue__c3__s1_(self): |
| v = self._is_unicat(self._get('x'), 'Mn') |
| if v: |
| self._succeed(v) |
| else: |
| self._fail() |
| |
| def _id_continue__c4_(self): |
| self._push('id_continue__c4') |
| self._seq([lambda: self._bind(self._anything_, 'x'), |
| self._id_continue__c4__s1_, |
| lambda: self._succeed(self._get('x'))]) |
| self._pop('id_continue__c4') |
| |
| def _id_continue__c4__s1_(self): |
| v = self._is_unicat(self._get('x'), 'Mc') |
| if v: |
| self._succeed(v) |
| else: |
| self._fail() |
| |
| def _id_continue__c5_(self): |
| self._push('id_continue__c5') |
| self._seq([lambda: self._bind(self._anything_, 'x'), |
| self._id_continue__c5__s1_, |
| lambda: self._succeed(self._get('x'))]) |
| self._pop('id_continue__c5') |
| |
| def _id_continue__c5__s1_(self): |
| v = self._is_unicat(self._get('x'), 'Nd') |
| if v: |
| self._succeed(v) |
| else: |
| self._fail() |
| |
| def _id_continue__c6_(self): |
| self._push('id_continue__c6') |
| self._seq([lambda: self._bind(self._anything_, 'x'), |
| self._id_continue__c6__s1_, |
| lambda: self._succeed(self._get('x'))]) |
| self._pop('id_continue__c6') |
| |
| def _id_continue__c6__s1_(self): |
| v = self._is_unicat(self._get('x'), 'Pc') |
| if v: |
| self._succeed(v) |
| else: |
| self._fail() |
| |
| def _id_continue__c7_(self): |
| self._seq([self._bslash_, self._unicode_esc_]) |
| |
| def _id_continue__c8_(self): |
| self._ch(u'\u200c') |
| |
| def _id_continue__c9_(self): |
| self._ch(u'\u200d') |
| |
| def _num_literal_(self): |
| self._choose([self._num_literal__c0_, self._num_literal__c1_, |
| self._hex_literal_, self._num_literal__c3_, |
| self._num_literal__c4_]) |
| |
| def _num_literal__c0_(self): |
| self._push('num_literal__c0') |
| self._seq([lambda: self._ch('-'), |
| lambda: self._bind(self._num_literal_, 'n'), |
| lambda: self._succeed('-' + self._get('n'))]) |
| self._pop('num_literal__c0') |
| |
| def _num_literal__c1_(self): |
| self._push('num_literal__c1') |
| self._seq([self._num_literal__c1__s0_, |
| lambda: self._bind(self._dec_literal_, 'd'), |
| lambda: self._not(self._id_start_), |
| lambda: self._succeed(self._get('d'))]) |
| self._pop('num_literal__c1') |
| |
| def _num_literal__c1__s0_(self): |
| self._opt(lambda: self._ch('+')) |
| |
| def _num_literal__c3_(self): |
| self._str('Infinity', 8) |
| |
| def _num_literal__c4_(self): |
| self._str('NaN', 3) |
| |
| def _dec_literal_(self): |
| self._choose([self._dec_literal__c0_, self._dec_literal__c1_, |
| self._dec_literal__c2_, self._dec_literal__c3_, |
| self._dec_literal__c4_, self._dec_literal__c5_]) |
| |
| def _dec_literal__c0_(self): |
| self._push('dec_literal__c0') |
| self._seq([lambda: self._bind(self._dec_int_lit_, 'd'), |
| lambda: self._bind(self._frac_, 'f'), |
| lambda: self._bind(self._exp_, 'e'), |
| lambda: self._succeed(self._get('d') + self._get('f') + self._get('e'))]) |
| self._pop('dec_literal__c0') |
| |
| def _dec_literal__c1_(self): |
| self._push('dec_literal__c1') |
| self._seq([lambda: self._bind(self._dec_int_lit_, 'd'), |
| lambda: self._bind(self._frac_, 'f'), |
| lambda: self._succeed(self._get('d') + self._get('f'))]) |
| self._pop('dec_literal__c1') |
| |
| def _dec_literal__c2_(self): |
| self._push('dec_literal__c2') |
| self._seq([lambda: self._bind(self._dec_int_lit_, 'd'), |
| lambda: self._bind(self._exp_, 'e'), |
| lambda: self._succeed(self._get('d') + self._get('e'))]) |
| self._pop('dec_literal__c2') |
| |
| def _dec_literal__c3_(self): |
| self._push('dec_literal__c3') |
| self._seq([lambda: self._bind(self._dec_int_lit_, 'd'), |
| lambda: self._succeed(self._get('d'))]) |
| self._pop('dec_literal__c3') |
| |
| def _dec_literal__c4_(self): |
| self._push('dec_literal__c4') |
| self._seq([lambda: self._bind(self._frac_, 'f'), |
| lambda: self._bind(self._exp_, 'e'), |
| lambda: self._succeed(self._get('f') + self._get('e'))]) |
| self._pop('dec_literal__c4') |
| |
| def _dec_literal__c5_(self): |
| self._push('dec_literal__c5') |
| self._seq([lambda: self._bind(self._frac_, 'f'), |
| lambda: self._succeed(self._get('f'))]) |
| self._pop('dec_literal__c5') |
| |
| def _dec_int_lit_(self): |
| self._choose([self._dec_int_lit__c0_, self._dec_int_lit__c1_]) |
| |
| def _dec_int_lit__c0_(self): |
| self._seq([lambda: self._ch('0'), lambda: self._not(self._digit_), |
| lambda: self._succeed('0')]) |
| |
| def _dec_int_lit__c1_(self): |
| self._push('dec_int_lit__c1') |
| self._seq([lambda: self._bind(self._nonzerodigit_, 'd'), |
| self._dec_int_lit__c1__s1_, |
| lambda: self._succeed(self._get('d') + self._join('', self._get('ds')))]) |
| self._pop('dec_int_lit__c1') |
| |
| def _dec_int_lit__c1__s1_(self): |
| self._bind(lambda: self._star(self._digit_), 'ds') |
| |
| def _digit_(self): |
| self._range('0', '9') |
| |
| def _nonzerodigit_(self): |
| self._range('1', '9') |
| |
| def _hex_literal_(self): |
| self._push('hex_literal') |
| self._seq([self._hex_literal__s0_, self._hex_literal__s1_, |
| lambda: self._succeed('0x' + self._join('', self._get('hs')))]) |
| self._pop('hex_literal') |
| |
| def _hex_literal__s0_(self): |
| self._choose([lambda: self._str('0x', 2), lambda: self._str('0X', 2)]) |
| |
| def _hex_literal__s1_(self): |
| self._bind(lambda: self._plus(self._hex_), 'hs') |
| |
| def _hex_(self): |
| self._choose([self._hex__c0_, self._hex__c1_, self._digit_]) |
| |
| def _hex__c0_(self): |
| self._range('a', 'f') |
| |
| def _hex__c1_(self): |
| self._range('A', 'F') |
| |
| def _hex_esc_(self): |
| self._push('hex_esc') |
| self._seq([lambda: self._ch('x'), lambda: self._bind(self._hex_, 'h1'), |
| lambda: self._bind(self._hex_, 'h2'), |
| lambda: self._succeed(self._xtou(self._get('h1') + self._get('h2')))]) |
| self._pop('hex_esc') |
| |
| def _hex_literal_(self): |
| self._push('hex_literal') |
| self._seq([self._hex_literal__s0_, self._hex_literal__s1_, |
| lambda: self._succeed('0x' + self._join('', self._get('hs')))]) |
| self._pop('hex_literal') |
| |
| def _hex_literal__s0_(self): |
| self._choose([lambda: self._str('0x', 2), lambda: self._str('0X', 2)]) |
| |
| def _hex_literal__s1_(self): |
| self._bind(lambda: self._plus(self._hex_), 'hs') |
| |
| def _frac_(self): |
| self._push('frac') |
| self._seq([lambda: self._ch('.'), self._frac__s1_, |
| lambda: self._succeed('.' + self._join('', self._get('ds')))]) |
| self._pop('frac') |
| |
| def _frac__s1_(self): |
| self._bind(lambda: self._star(self._digit_), 'ds') |
| |
| def _exp_(self): |
| self._choose([self._exp__c0_, self._exp__c1_]) |
| |
| def _exp__c0_(self): |
| self._push('exp__c0') |
| self._seq([self._exp__c0__s0_, |
| lambda: self._bind(self._exp__c0__s1_l_, 's'), |
| self._exp__c0__s2_, |
| lambda: self._succeed('e' + self._get('s') + self._join('', self._get('ds')))]) |
| self._pop('exp__c0') |
| |
| def _exp__c0__s0_(self): |
| self._choose([lambda: self._ch('e'), lambda: self._ch('E')]) |
| |
| def _exp__c0__s1_l_(self): |
| self._choose([lambda: self._ch('+'), lambda: self._ch('-')]) |
| |
| def _exp__c0__s2_(self): |
| self._bind(lambda: self._star(self._digit_), 'ds') |
| |
| def _exp__c1_(self): |
| self._push('exp__c1') |
| self._seq([self._exp__c1__s0_, self._exp__c1__s1_, |
| lambda: self._succeed('e' + self._join('', self._get('ds')))]) |
| self._pop('exp__c1') |
| |
| def _exp__c1__s0_(self): |
| self._choose([lambda: self._ch('e'), lambda: self._ch('E')]) |
| |
| def _exp__c1__s1_(self): |
| self._bind(lambda: self._star(self._digit_), 'ds') |
| |
| def _anything_(self): |
| if self.pos < self.end: |
| self._succeed(self.msg[self.pos], self.pos + 1) |
| else: |
| self._fail() |
| |
| def _end_(self): |
| if self.pos == self.end: |
| self._succeed(None) |
| else: |
| self._fail() |
