80 lines
2.3 KiB
C++
80 lines
2.3 KiB
C++
|
/*
|
||
|
|
Copyright (c) 2015, Matthias Schiffer <mschiffer@universe-factory.net>
|
||
|
|
All rights reserved.
|
||
|
|
|
||
|
|
Redistribution and use in source and binary forms, with or without
|
||
|
|
modification, are permitted provided that the following conditions are met:
|
||
|
|
|
||
|
|
1. Redistributions of source code must retain the above copyright notice,
|
||
|
|
this list of conditions and the following disclaimer.
|
||
|
|
2. Redistributions in binary form must reproduce the above copyright notice,
|
||
|
|
this list of conditions and the following disclaimer in the documentation
|
||
|
|
and/or other materials provided with the distribution.
|
||
|
|
|
||
|
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
||
|
|
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||
|
|
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||
|
|
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
|
||
|
|
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||
|
|
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
||
|
|
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
||
|
|
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
||
|
|
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||
|
|
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
#pragma once
|
||
|
|
|
||
|
|
#include <string>
|
||
|
|
#include <unordered_set>
|
||
|
|
#include <unordered_map>
|
||
|
|
#include <utility>
|
||
|
|
#include <vector>
|
||
|
|
|
||
|
|
|
||
|
|
namespace solar {
|
||
|
|
|
||
|
|
class state_t {
|
||
|
|
private:
|
||
|
|
struct sym_t {
|
||
|
|
virtual ~sym_t() {}
|
||
|
|
};
|
||
|
|
|
||
|
|
struct nonterm_sym_t : public sym_t {
|
||
|
|
std::string value;
|
||
|
|
|
||
|
|
nonterm_sym_t(const std::string &value0) : value(value0) {}
|
||
|
|
};
|
||
|
|
|
||
|
|
struct term_sym_t : public sym_t {
|
||
|
|
std::string value;
|
||
|
|
|
||
|
|
term_sym_t(const std::string &value0) : value(value0) {}
|
||
|
|
};
|
||
|
|
|
||
|
|
struct char_sym_t : public sym_t {
|
||
|
|
unsigned char value;
|
||
|
|
|
||
|
|
char_sym_t(unsigned char value0) : value(value0) {}
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
typedef std::vector<sym_t> rhs_t;
|
||
|
|
|
||
|
|
std::unordered_set<std::string> terminals;
|
||
|
|
std::unordered_multimap<std::string, rhs_t> rules;
|
||
|
|
|
||
|
|
std::string current_nonterm;
|
||
|
|
rhs_t current_rule;
|
||
|
|
|
||
|
|
public:
|
||
|
|
void openRule(const std::string &nonterm);
|
||
|
|
void addRuleTerminal(const std::string &term);
|
||
|
|
void addRuleTerminal(unsigned char term);
|
||
|
|
void addRuleNonterminal(const std::string &nonterm);
|
||
|
|
void closeRule();
|
||
|
|
};
|
||
|
|
|
||
|
|
}
|