1 /* $OpenBSD: lib_in_wchnstr.c,v 1.2 2023/10/17 09:52:09 nicm Exp $ */ 2 3 /**************************************************************************** 4 * Copyright 2020 Thomas E. Dickey * 5 * Copyright 2002-2007,2009 Free Software Foundation, Inc. * 6 * * 7 * Permission is hereby granted, free of charge, to any person obtaining a * 8 * copy of this software and associated documentation files (the * 9 * "Software"), to deal in the Software without restriction, including * 10 * without limitation the rights to use, copy, modify, merge, publish, * 11 * distribute, distribute with modifications, sublicense, and/or sell * 12 * copies of the Software, and to permit persons to whom the Software is * 13 * furnished to do so, subject to the following conditions: * 14 * * 15 * The above copyright notice and this permission notice shall be included * 16 * in all copies or substantial portions of the Software. * 17 * * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 21 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 22 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 23 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 24 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 25 * * 26 * Except as contained in this notice, the name(s) of the above copyright * 27 * holders shall not be used in advertising or otherwise to promote the * 28 * sale, use or other dealings in this Software without prior written * 29 * authorization. * 30 ****************************************************************************/ 31 32 /**************************************************************************** 33 * Author: Thomas Dickey * 34 ****************************************************************************/ 35 36 /* 37 ** lib_in_wchnstr.c 38 ** 39 ** The routine win_wchnstr(). 40 ** 41 */ 42 43 #include <curses.priv.h> 44 45 MODULE_ID("$Id: lib_in_wchnstr.c,v 1.2 2023/10/17 09:52:09 nicm Exp $") 46 47 NCURSES_EXPORT(int) 48 win_wchnstr(WINDOW *win, cchar_t *wchstr, int n) 49 { 50 int code = OK; 51 52 T((T_CALLED("win_wchnstr(%p,%p,%d)"), (void *) win, (void *) wchstr, n)); 53 if (win != 0 54 && wchstr != 0) { 55 NCURSES_CH_T *src; 56 int row, col; 57 int j, k, limit; 58 59 getyx(win, row, col); 60 limit = getmaxx(win) - col; 61 src = &(win->_line[row].text[col]); 62 63 if (n < 0) { 64 n = limit; 65 } else if (n > limit) { 66 n = limit; 67 } 68 for (j = k = 0; j < n; ++j) { 69 if (j == 0 || !WidecExt(src[j]) || isWidecBase(src[j])) { 70 wchstr[k++] = src[j]; 71 } 72 } 73 memset(&(wchstr[k]), 0, sizeof(*wchstr)); 74 T(("result = %s", _nc_viscbuf(wchstr, n))); 75 } else { 76 code = ERR; 77 } 78 returnCode(code); 79 } 80