1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
|
#ifndef QPID_BROKER_SELECTORTOKEN_H
#define QPID_BROKER_SELECTORTOKEN_H
/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*/
#include "qpid/broker/BrokerImportExport.h"
#include <iosfwd>
#include <string>
#include <stdexcept>
#include <vector>
namespace qpid {
namespace broker {
typedef enum {
T_EOS,
T_NULL,
T_TRUE,
T_FALSE,
T_NOT,
T_AND,
T_OR,
T_IN,
T_IS,
T_BETWEEN,
T_LIKE,
T_ESCAPE,
T_IDENTIFIER,
T_STRING,
T_NUMERIC_EXACT,
T_NUMERIC_APPROX,
T_LPAREN,
T_RPAREN,
T_OPERATOR
} TokenType;
struct Token {
TokenType type;
std::string val;
Token()
{}
Token(TokenType t, const std::string& v) :
type(t),
val(v)
{}
Token(TokenType t, const std::string::const_iterator& s, const std::string::const_iterator& e) :
type(t),
val(std::string(s,e))
{}
bool operator==(const Token& r) const
{
return type == r.type && val == r.val;
}
};
QPID_BROKER_EXTERN std::ostream& operator<<(std::ostream& os, const Token& t);
class TokenException : public std::range_error {
public:
TokenException(const std::string&);
};
QPID_BROKER_EXTERN bool tokeniseEos(std::string::const_iterator& s, std::string::const_iterator& e, Token& tok);
QPID_BROKER_EXTERN bool tokeniseIdentifier(std::string::const_iterator& s, std::string::const_iterator& e, Token& tok);
QPID_BROKER_EXTERN bool tokeniseReservedWord(std::string::const_iterator& s, std::string::const_iterator& e, Token& tok);
QPID_BROKER_EXTERN bool tokeniseIdentifierOrReservedWord(std::string::const_iterator& s, std::string::const_iterator& e, Token& tok);
QPID_BROKER_EXTERN bool tokeniseString(std::string::const_iterator& s, std::string::const_iterator& e, Token& tok);
QPID_BROKER_EXTERN bool tokeniseParens(std::string::const_iterator& s, std::string::const_iterator& e, Token& tok);
QPID_BROKER_EXTERN bool tokeniseOperator(std::string::const_iterator& s, std::string::const_iterator& e, Token& tok);
QPID_BROKER_EXTERN bool tokeniseNumeric(std::string::const_iterator& s, std::string::const_iterator& e, Token& tok);
class Tokeniser {
std::vector<Token> tokens;
unsigned int tokp;
std::string::const_iterator inp;
std::string::const_iterator inEnd;
public:
QPID_BROKER_EXTERN Tokeniser(const std::string::const_iterator& s, const std::string::const_iterator& e);
QPID_BROKER_EXTERN void returnTokens(unsigned int n = 1);
QPID_BROKER_EXTERN const Token& nextToken();
};
}}
#endif
|