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addnstr.c revision 1.10 
      1 /*	$NetBSD: addnstr.c,v 1.10 2000/08/13 03:26:41 itojun Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1993, 1994
      5  *	The Regents of the University of California.  All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *	This product includes software developed by the University of
     18  *	California, Berkeley and its contributors.
     19  * 4. Neither the name of the University nor the names of its contributors
     20  *    may be used to endorse or promote products derived from this software
     21  *    without specific prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     33  * SUCH DAMAGE.
     34  */
     35 
     36 #include <sys/cdefs.h>
     37 #ifndef lint
     38 #if 0
     39 static char sccsid[] = "@(#)addnstr.c	8.2 (Berkeley) 5/4/94";
     40 #else
     41 __RCSID("$NetBSD: addnstr.c,v 1.10 2000/08/13 03:26:41 itojun Exp $");
     42 #endif
     43 #endif				/* not lint */
     44 
     45 #include <string.h>
     46 
     47 #include "curses.h"
     48 #include "curses_private.h"
     49 
     50 #ifndef _CURSES_USE_MACROS
     51 
     52 /*
     53  * addstr --
     54  *      Add a string to stdscr starting at (_cury, _curx).
     55  */
     56 int
     57 addstr(const char *s)
     58 {
     59 	return waddnstr(stdscr, s, -1);
     60 }
     61 
     62 /*
     63  * waddstr --
     64  *      Add a string to the given window starting at (_cury, _curx).
     65  */
     66 int
     67 waddstr(WINDOW *win, const char *s)
     68 {
     69 	return waddnstr(win, s, -1);
     70 }
     71 
     72 /*
     73  * addnstr --
     74  *      Add a string (at most n characters) to stdscr starting
     75  *	at (_cury, _curx).  If n is negative, add the entire string.
     76  */
     77 int
     78 addnstr(const char *str, int n)
     79 {
     80 	return waddnstr(stdscr, str, n);
     81 }
     82 
     83 /*
     84  * mvaddstr --
     85  *      Add a string to stdscr starting at (y, x)
     86  */
     87 int
     88 mvaddstr(int y, int x, const char *str)
     89 {
     90 	return mvwaddnstr(stdscr, y, x, str, -1);
     91 }
     92 
     93 /*
     94  * mvwaddstr --
     95  *      Add a string to the given window starting at (y, x)
     96  */
     97 int
     98 mvwaddstr(WINDOW *win, int y, int x, const char *str)
     99 {
    100 	return mvwaddnstr(win, y, x, str, -1);
    101 }
    102 
    103 /*
    104  * mvaddnstr --
    105  *      Add a string of at most n characters to stdscr
    106  *      starting at (y, x).
    107  */
    108 int
    109 mvaddnstr(int y, int x, const char *str, int count)
    110 {
    111 	return mvwaddnstr(stdscr, y, x, str, count);
    112 }
    113 
    114 /*
    115  * mvwaddnstr --
    116  *      Add a string of at most n characters to the given window
    117  *      starting at (y, x).
    118  */
    119 int
    120 mvwaddnstr(WINDOW *win, int y, int x, const char *str, int count)
    121 {
    122 	if (wmove(win, y, x) == ERR)
    123 		return ERR;
    124 
    125 	return waddnstr(win, str, count);
    126 }
    127 
    128 #endif
    129 
    130 /*
    131  * waddnstr --
    132  *	Add a string (at most n characters) to the given window
    133  *	starting at (_cury, _curx).  If n is negative, add the
    134  *	entire string.
    135  */
    136 int
    137 waddnstr(WINDOW *win, const char *s, int n)
    138 {
    139 	size_t  len;
    140 	const char *p;
    141 
    142 	/*
    143 	 * behavior changed from traditional BSD curses, for better XCURSES
    144 	 * conformance.
    145 	 *
    146 	 * BSD curses: if (n > 0) then "at most n", else "len = strlen(s)"
    147 	 * ncurses: if (n >= 0) then "at most n", else "len = strlen(s)"
    148 	 * XCURSES: if (n != -1) then "at most n", else "len = strlen(s)"
    149 	 */
    150 	if (n >= 0)
    151 		for (p = s, len = 0; n-- && *p++; ++len);
    152 	else
    153 		len = strlen(s);
    154 	return (waddbytes(win, s, (int) len));
    155 }
    156