/*******************************************************************************
 * Copyright (c) 2013-2021, Andrés Martinelli <andmarti@gmail.com>             *
 * All rights reserved.                                                        *
 *                                                                             *
 * This file is a part of sc-im                                                *
 *                                                                             *
 * sc-im is a spreadsheet program that is based on sc. The original authors    *
 * of sc are James Gosling and Mark Weiser, and mods were later added by       *
 * Chuck Martin.                                                               *
 *                                                                             *
 * Redistribution and use in source and binary forms, with or without          *
 * modification, are permitted provided that the following conditions are met: *
 * 1. Redistributions of source code must retain the above copyright           *
 *    notice, this list of conditions and the following disclaimer.            *
 * 2. Redistributions in binary form must reproduce the above copyright        *
 *    notice, this list of conditions and the following disclaimer in the      *
 *    documentation and/or other materials provided with the distribution.     *
 * 3. All advertising materials mentioning features or use of this software    *
 *    must display the following acknowledgement:                              *
 *    This product includes software developed by Andrés Martinelli            *
 *    <andmarti@gmail.com>.                                                    *
 * 4. Neither the name of the Andrés Martinelli nor the                        *
 *   names of other contributors may be used to endorse or promote products    *
 *   derived from this software without specific prior written permission.     *
 *                                                                             *
 * THIS SOFTWARE IS PROVIDED BY ANDRES MARTINELLI ''AS IS'' AND ANY            *
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED   *
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE      *
 * DISCLAIMED. IN NO EVENT SHALL ANDRES MARTINELLI BE LIABLE FOR ANY           *
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES  *
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;*
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND *
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT  *
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE       *
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.           *
 *******************************************************************************/

/**
 * \file history.h
 * \author Andrés Martinelli <andmarti@gmail.com>
 * \date 2017-07-18
 * \brief Header file for history.c
 */

struct history {
   int len;
   int pos;
   char mode;
   struct hlist * list;
};

struct hlist {
   wchar_t * line;
   struct hlist * pnext;
   struct hlist * pant;
};

struct history * create_history(char mode);
void destroy_history(struct history * h);
void load_history(struct history * h, wchar_t mode);
int save_history(struct history * h, char * mode);
void del_item_from_history(struct history * h, int pos);
int move_item_from_history_by_str(struct history * h, wchar_t * item, int pos);
void add(struct history * h, wchar_t * line);
wchar_t * get_line_from_history(struct history * h, int pos);
struct hlist * get_hlist_from_history(struct history * h, int pos);

// current command before tab completion
void copy_to_curcmd(wchar_t * inputline);
wchar_t * get_curcmd();

// tab completion mark
int get_comp();
void set_comp(int);