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      1 /*	$NetBSD: addnstr.c,v 1.21 2022/12/21 06:18:01 blymn 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. Neither the name of the University nor the names of its contributors
     16  *    may be used to endorse or promote products derived from this software
     17  *    without specific prior written permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     29  * SUCH DAMAGE.
     30  */
     31 
     32 #include <sys/cdefs.h>
     33 #ifndef lint
     34 #if 0
     35 static char sccsid[] = "@(#)addnstr.c	8.2 (Berkeley) 5/4/94";
     36 #else
     37 __RCSID("$NetBSD: addnstr.c,v 1.21 2022/12/21 06:18:01 blymn Exp $");
     38 #endif
     39 #endif				/* not lint */
     40 
     41 #include <string.h>
     42 
     43 #include "curses.h"
     44 #include "curses_private.h"
     45 
     46 #ifndef _CURSES_USE_MACROS
     47 
     48 /*
     49  * addstr --
     50  *      Add a string to stdscr starting at (_cury, _curx).
     51  */
     52 int
     53 addstr(const char *s)
     54 {
     55 	__CTRACE(__CTRACE_INPUT, "addstr: %s\n", s);
     56 
     57 	return waddnstr(stdscr, s, -1);
     58 }
     59 
     60 /*
     61  * waddstr --
     62  *      Add a string to the given window starting at (_cury, _curx).
     63  */
     64 int
     65 waddstr(WINDOW *win, const char *s)
     66 {
     67 	__CTRACE(__CTRACE_INPUT, "addstr: win %p, sttring: %s\n", win, 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 	__CTRACE(__CTRACE_INPUT, "addnstr: n: %d, string: %s\n", n, str);
     81 
     82 	return waddnstr(stdscr, str, n);
     83 }
     84 
     85 /*
     86  * mvaddstr --
     87  *      Add a string to stdscr starting at (y, x)
     88  */
     89 int
     90 mvaddstr(int y, int x, const char *str)
     91 {
     92 	__CTRACE(__CTRACE_INPUT, "mvaddnstr: y: %d, x: %d, string: %s\n", y,
     93 	    x, str);
     94 
     95 	return mvwaddnstr(stdscr, y, x, str, -1);
     96 }
     97 
     98 /*
     99  * mvwaddstr --
    100  *      Add a string to the given window starting at (y, x)
    101  */
    102 int
    103 mvwaddstr(WINDOW *win, int y, int x, const char *str)
    104 {
    105 	__CTRACE(__CTRACE_INPUT, "mvwaddnstr: win: %p, y: %d, x: %d, string: %s\n",
    106 	    win, y, x, str);
    107 
    108 	return mvwaddnstr(win, y, x, str, -1);
    109 }
    110 
    111 /*
    112  * mvaddnstr --
    113  *      Add a string of at most n characters to stdscr
    114  *      starting at (y, x).
    115  */
    116 int
    117 mvaddnstr(int y, int x, const char *str, int count)
    118 {
    119 	__CTRACE(__CTRACE_INPUT, "mvaddnstr: n: %d, y: %d, x: %d, string: %s\n",
    120 	    count, y, x, str);
    121 
    122 	return mvwaddnstr(stdscr, y, x, str, count);
    123 }
    124 
    125 /*
    126  * mvwaddnstr --
    127  *      Add a string of at most n characters to the given window
    128  *      starting at (y, x).
    129  */
    130 int
    131 mvwaddnstr(WINDOW *win, int y, int x, const char *str, int count)
    132 {
    133 	__CTRACE(__CTRACE_INPUT, "mvwaddnstr: win: %p, n: %d, y: %d, x: %d, string: %s\n",
    134 	    win, count, y, x, str);
    135 
    136 	if (wmove(win, y, x) == ERR)
    137 		return ERR;
    138 
    139 	return waddnstr(win, str, count);
    140 }
    141 
    142 #endif
    143 
    144 /*
    145  * waddnstr --
    146  *	Add a string (at most n characters) to the given window
    147  *	starting at (_cury, _curx).  If n is negative, add the
    148  *	entire string.
    149  */
    150 int
    151 waddnstr(WINDOW *win, const char *s, int n)
    152 {
    153 	size_t  len;
    154 	const char *p;
    155 
    156 	__CTRACE(__CTRACE_INPUT, "ADDNSTR: win %p, length %d\n", win, n);
    157 	__CTRACE(__CTRACE_INPUT, "ADDNSTR: string %s\n", s);
    158 	/*
    159 	 * behavior changed from traditional BSD curses, for better XCURSES
    160 	 * conformance.
    161 	 *
    162 	 * BSD curses: if (n > 0) then "at most n", else "len = strlen(s)"
    163 	 * ncurses: if (n >= 0) then "at most n", else "len = strlen(s)"
    164 	 * XCURSES: if (n != -1) then "at most n", else "len = strlen(s)"
    165 	 *
    166 	 */
    167 	if (n >= 0)
    168 		for (p = s, len = 0; n-- && *p++; ++len);
    169 	else
    170 		len = strlen(s);
    171 
    172 	return waddbytes(win, s, (int) len);
    173 }
    174