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tetex-bin  3.0
lib_instr.c
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00001 /****************************************************************************
00002  * Copyright (c) 1998-2001,2002 Free Software Foundation, Inc.              *
00003  *                                                                          *
00004  * Permission is hereby granted, free of charge, to any person obtaining a  *
00005  * copy of this software and associated documentation files (the            *
00006  * "Software"), to deal in the Software without restriction, including      *
00007  * without limitation the rights to use, copy, modify, merge, publish,      *
00008  * distribute, distribute with modifications, sublicense, and/or sell       *
00009  * copies of the Software, and to permit persons to whom the Software is    *
00010  * furnished to do so, subject to the following conditions:                 *
00011  *                                                                          *
00012  * The above copyright notice and this permission notice shall be included  *
00013  * in all copies or substantial portions of the Software.                   *
00014  *                                                                          *
00015  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
00016  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
00017  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
00018  * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
00019  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
00020  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
00021  * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
00022  *                                                                          *
00023  * Except as contained in this notice, the name(s) of the above copyright   *
00024  * holders shall not be used in advertising or otherwise to promote the     *
00025  * sale, use or other dealings in this Software without prior written       *
00026  * authorization.                                                           *
00027  ****************************************************************************/
00028 
00029 /****************************************************************************
00030  *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
00031  *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
00032  ****************************************************************************/
00033 
00034 /*
00035 **     lib_instr.c
00036 **
00037 **     The routine winnstr().
00038 **
00039 */
00040 
00041 #include <curses.priv.h>
00042 
00043 MODULE_ID("$Id: lib_instr.c,v 1.12 2002/10/05 23:23:05 tom Exp $")
00044 
00045 NCURSES_EXPORT(int)
00046 winnstr(WINDOW *win, char *str, int n)
00047 {
00048     int i = 0, row, col;
00049 
00050     T((T_CALLED("winnstr(%p,%p,%d)"), win, str, n));
00051 
00052     if (!str)
00053        returnCode(0);
00054 
00055     if (win) {
00056        getyx(win, row, col);
00057 
00058        if (n < 0)
00059            n = win->_maxx - win->_curx + 1;
00060 
00061        for (; i < n;) {
00062            str[i++] = CharOf(win->_line[row].text[col]);
00063            if (++col > win->_maxx) {
00064               col = 0;
00065               if (++row > win->_maxy)
00066                   break;
00067            }
00068        }
00069     }
00070     str[i] = '\0';          /* SVr4 does not seem to count the null */
00071     T(("winnstr returns %s", _nc_visbuf(str)));
00072     returnCode(i);
00073 }