1 /* $NetBSD: addnstr.c,v 1.13 2012/09/28 06:07:05 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 1.13 2012/09/28 06:07:05 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 return waddnstr(stdscr, s, -1); 56 } 57 58 /* 59 * waddstr -- 60 * Add a string to the given window starting at (_cury, _curx). 61 */ 62 int 63 waddstr(WINDOW *win, const char *s) 64 { 65 return waddnstr(win, s, -1); 66 } 67 68 /* 69 * addnstr -- 70 * Add a string (at most n characters) to stdscr starting 71 * at (_cury, _curx). If n is negative, add the entire string. 72 */ 73 int 74 addnstr(const char *str, int n) 75 { 76 return waddnstr(stdscr, str, n); 77 } 78 79 /* 80 * mvaddstr -- 81 * Add a string to stdscr starting at (y, x) 82 */ 83 int 84 mvaddstr(int y, int x, const char *str) 85 { 86 return mvwaddnstr(stdscr, y, x, str, -1); 87 } 88 89 /* 90 * mvwaddstr -- 91 * Add a string to the given window starting at (y, x) 92 */ 93 int 94 mvwaddstr(WINDOW *win, int y, int x, const char *str) 95 { 96 return mvwaddnstr(win, y, x, str, -1); 97 } 98 99 /* 100 * mvaddnstr -- 101 * Add a string of at most n characters to stdscr 102 * starting at (y, x). 103 */ 104 int 105 mvaddnstr(int y, int x, const char *str, int count) 106 { 107 return mvwaddnstr(stdscr, y, x, str, count); 108 } 109 110 /* 111 * mvwaddnstr -- 112 * Add a string of at most n characters to the given window 113 * starting at (y, x). 114 */ 115 int 116 mvwaddnstr(WINDOW *win, int y, int x, const char *str, int count) 117 { 118 if (wmove(win, y, x) == ERR) 119 return ERR; 120 121 return waddnstr(win, str, count); 122 } 123 124 #endif 125 126 /* 127 * waddnstr -- 128 * Add a string (at most n characters) to the given window 129 * starting at (_cury, _curx). If n is negative, add the 130 * entire string. 131 */ 132 int 133 waddnstr(WINDOW *win, const char *s, int n) 134 { 135 size_t len; 136 const char *p; 137 138 #ifdef DEBUG 139 __CTRACE(__CTRACE_INPUT, "ADDNSTR: win %p, length %d\n", 140 win, n); 141 #endif 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 * Also SUSv2 says these functions do not wrap nor change the 151 * cursor position. 152 */ 153 if (n >= 0) 154 for (p = s, len = 0; n-- && *p++; ++len); 155 else 156 len = strlen(s); 157 158 if (len > (win->maxx - win->curx)) 159 len = win->maxx - win->curx; 160 161 return(waddbytes(win, s, (int) len)); 162 } 163