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HName.h
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HName.h
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#ifndef __HName_H
#define __HName_H
/*
* Copyright (c) 2001 Stephen Williams (steve@icarus.com)
*
* This source code is free software; you can redistribute it
* and/or modify it in source code form under the terms of the GNU
* General Public License as published by the Free Software
* Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#if !defined(WINNT)
#ident "$Id: HName.h,v 1.1 2001/12/03 04:47:14 steve Exp $"
#endif
#ifdef HAVE_IOSFWD
# include <iosfwd>
#else
class ostream;
#endif
/*
* This class represents a Verilog hierarchical name. A hierarchical
* name is an ordered list of simple names.
*/
class hname_t {
public:
hname_t ();
explicit hname_t (const char*text);
hname_t (const hname_t&that);
~hname_t();
// This method adds a name to the end of the hierarchical
// path. This becomes a new base name.
void append(const char*text);
// This method adds a name to the *front* of the hierarchical
// path. The base name remains the same, unless this is the
// only component.
void prepend(const char*text);
// This method removes the tail name from the hierarchy, and
// returns a pointer to that tail name. That tail name now
// must be removed by the caller.
char* remove_tail_name();
// Return the given component in the hierarchical name. If the
// idx is too large, return 0.
const char*peek_name(unsigned idx) const;
const char*peek_tail_name() const;
friend ostream& operator<< (ostream&, const hname_t&);
private:
union {
char**array_;
char* item_;
};
unsigned count_;
private: // not implemented
hname_t& operator= (const hname_t&);
};
extern bool operator < (const hname_t&, const hname_t&);
extern bool operator == (const hname_t&, const hname_t&);
/*
* $Log: HName.h,v $
* Revision 1.1 2001/12/03 04:47:14 steve
* Parser and pform use hierarchical names as hname_t
* objects instead of encoded strings.
*
*/
#endif