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