1 /**************************************************************************** 2 * Copyright 2020 Thomas E. Dickey * 3 * Copyright 2002-2007,2009 Free Software Foundation, Inc. * 4 * * 5 * Permission is hereby granted, free of charge, to any person obtaining a * 6 * copy of this software and associated documentation files (the * 7 * "Software"), to deal in the Software without restriction, including * 8 * without limitation the rights to use, copy, modify, merge, publish, * 9 * distribute, distribute with modifications, sublicense, and/or sell * 10 * copies of the Software, and to permit persons to whom the Software is * 11 * furnished to do so, subject to the following conditions: * 12 * * 13 * The above copyright notice and this permission notice shall be included * 14 * in all copies or substantial portions of the Software. * 15 * * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 19 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 22 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 23 * * 24 * Except as contained in this notice, the name(s) of the above copyright * 25 * holders shall not be used in advertising or otherwise to promote the * 26 * sale, use or other dealings in this Software without prior written * 27 * authorization. * 28 ****************************************************************************/ 29 30 /**************************************************************************** 31 * Author: Thomas Dickey * 32 ****************************************************************************/ 33 34 /* 35 ** lib_in_wchnstr.c 36 ** 37 ** The routine win_wchnstr(). 38 ** 39 */ 40 41 #include <curses.priv.h> 42 43 MODULE_ID("$Id: lib_in_wchnstr.c,v 1.9 2020/02/02 23:34:34 tom Exp $") 44 45 NCURSES_EXPORT(int) 46 win_wchnstr(WINDOW *win, cchar_t *wchstr, int n) 47 { 48 int code = OK; 49 50 T((T_CALLED("win_wchnstr(%p,%p,%d)"), (void *) win, (void *) wchstr, n)); 51 if (win != 0 52 && wchstr != 0) { 53 NCURSES_CH_T *src; 54 int row, col; 55 int j, k, limit; 56 57 getyx(win, row, col); 58 limit = getmaxx(win) - col; 59 src = &(win->_line[row].text[col]); 60 61 if (n < 0) { 62 n = limit; 63 } else if (n > limit) { 64 n = limit; 65 } 66 for (j = k = 0; j < n; ++j) { 67 if (j == 0 || !WidecExt(src[j]) || isWidecBase(src[j])) { 68 wchstr[k++] = src[j]; 69 } 70 } 71 memset(&(wchstr[k]), 0, sizeof(*wchstr)); 72 T(("result = %s", _nc_viscbuf(wchstr, n))); 73 } else { 74 code = ERR; 75 } 76 returnCode(code); 77 } 78