/*
 * Copyright (c) 1987, 1988, 1989 Stanford University
 *
 * Permission to use, copy, modify, distribute, and sell this software and its
 * documentation for any purpose is hereby granted without fee, provided
 * that the above copyright notice appear in all copies and that both that
 * copyright notice and this permission notice appear in supporting
 * documentation, and that the name of Stanford not be used in advertising or
 * publicity pertaining to distribution of the software without specific,
 * written prior permission.  Stanford makes no representations about
 * the suitability of this software for any purpose.  It is provided "as is"
 * without express or implied warranty.
 *
 * STANFORD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
 * IN NO EVENT SHALL STANFORD BE LIABLE FOR ANY SPECIAL, 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.
 */

/*
 * String table for mapping to unique pointers.
 */

#ifndef strtable_h
#define strtable_h

#include <InterViews/defs.h>

class StringId {
public:
    const char* Str();
private:
    friend class StringTable;

    const char* str;
    int len;
    StringId* chain;
};

inline const char* StringId::Str () { return str; }

class StringTable {
public:
    StringTable(int);
    ~StringTable();

    StringId* Id(const char*);
    StringId* Id(const char*, int);
    void Remove(const char*);
    void Remove(const char*, int);
private:
    int size;
    StringId** first;
    StringId** last;

    StringId** Probe(const char*, int&);
    unsigned int Hash(const char*, int&);
};

#endif