libparse.h

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/*
 *  yosys -- Yosys Open SYnthesis Suite
 *
 *  Copyright (C) 2012  Clifford Wolf <clifford@clifford.at>
 *  
 *  Permission to use, copy, modify, and/or distribute this software for any
 *  purpose with or without fee is hereby granted, provided that the above
 *  copyright notice and this permission notice appear in all copies.
 *  
 *  THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 *  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 *  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 *  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 *  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 *  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 *  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 *
 */

#ifndef LIBPARSE_H
#define LIBPARSE_H

#include <stdio.h>
#include <string>
#include <vector>
#include <set>

namespace Yosys
{
    struct LibertyAst
    {
        std::string id, value;
        std::vector<std::string> args;
        std::vector<LibertyAst*> children;
        ~LibertyAst();
        LibertyAst *find(std::string name);
        void dump(FILE *f, std::string indent = "", std::string path = "", bool path_ok = false);
        static std::set<std::string> blacklist;
        static std::set<std::string> whitelist;
    };

    struct LibertyParser
    {
        std::istream &f;
        int line;
        LibertyAst *ast;
        LibertyParser(std::istream &f) : f(f), line(1), ast(parse()) {}
        ~LibertyParser() { if (ast) delete ast; }
        int lexer(std::string &str);
        LibertyAst *parse();
        void error();
    };
}

#endif