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/*
* yosys -- Yosys Open SYnthesis Suite
*
* Copyright (C) 2012 Claire Xenia Wolf <claire@yosyshq.com>
*
* 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; }
/* lexer return values:
'v': identifier, string, array range [...] -> str holds the token string
'n': newline
anything else is a single character.
*/
int lexer(std::string &str);
LibertyAst *parse();
void error();
void error(const std::string &str);
};
}
#endif
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