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#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_COMMA,
T_PLUS,
T_MINUS,
T_MULT,
T_DIV,
T_EQUAL,
T_NEQ,
T_LESS,
T_GRT,
T_LSEQ,
T_GREQ
} TokenType;
struct Token {
TokenType type;
std::string val;
std::string::const_iterator tokenStart;
Token()
{}
Token(TokenType t, const std::string& v) :
type(t),
val(v)
{}
Token(TokenType t, const std::string::const_iterator& s, const std::string& v) :
type(t),
val(v),
tokenStart(s)
{}
Token(TokenType t, const std::string::const_iterator& s, const std::string::const_iterator& e) :
type(t),
val(std::string(s,e)),
tokenStart(s)
{}
bool operator==(const Token& r) const
{
return
(type == T_EOS && r.type == T_EOS) ||
(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 tokenise(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 inStart;
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();
QPID_BROKER_EXTERN std::string remaining();
};
}}
#endif
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