36 lines
1.3 KiB
C++
36 lines
1.3 KiB
C++
/*
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Copyright (c) 2014 Microsoft Corporation. All rights reserved.
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Released under Apache 2.0 license as described in the file LICENSE.
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Author: Leonardo de Moura
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*/
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#pragma once
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#include <utility>
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#include <string>
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#include "util/trie.h"
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#include "util/name.h"
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namespace lean {
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class token_info {
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bool m_command;
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name m_value;
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unsigned m_precedence;
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public:
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token_info():m_command(true) {}
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token_info(char const * val):m_command(true), m_value(val), m_precedence(0) {}
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token_info(char const * val, unsigned prec):m_command(false), m_value(val), m_precedence(prec) {}
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bool is_command() const { return m_command; }
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name const & value() const { return m_value; }
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unsigned precedence() const { return m_precedence; }
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};
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typedef ctrie<token_info> token_set;
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token_set mk_default_token_set();
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token_set add_command_token(token_set const & s, char const * token);
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token_set add_command_token(token_set const & s, char const * token, char const * val);
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token_set add_token(token_set const & s, char const * token, unsigned prec = 0);
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token_set add_token(token_set const & s, char const * token, char const * val, unsigned prec = 0);
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token_set merge(token_set const & s1, token_set const & s2);
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token_set const * find(token_set const & s, char c);
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token_info const * value_of(token_set const & s);
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}
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