1 /* $OpenBSD: lib_inwstr.c,v 1.1 2010/09/06 17:26:17 nicm Exp $ */ 2 3 /**************************************************************************** 4 * Copyright (c) 2002,2004 Free Software Foundation, Inc. * 5 * * 6 * Permission is hereby granted, free of charge, to any person obtaining a * 7 * copy of this software and associated documentation files (the * 8 * "Software"), to deal in the Software without restriction, including * 9 * without limitation the rights to use, copy, modify, merge, publish, * 10 * distribute, distribute with modifications, sublicense, and/or sell * 11 * copies of the Software, and to permit persons to whom the Software is * 12 * furnished to do so, subject to the following conditions: * 13 * * 14 * The above copyright notice and this permission notice shall be included * 15 * in all copies or substantial portions of the Software. * 16 * * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 20 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 21 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 22 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 23 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 24 * * 25 * Except as contained in this notice, the name(s) of the above copyright * 26 * holders shall not be used in advertising or otherwise to promote the * 27 * sale, use or other dealings in this Software without prior written * 28 * authorization. * 29 ****************************************************************************/ 30 31 /**************************************************************************** 32 * Author: Thomas Dickey * 33 ****************************************************************************/ 34 35 /* 36 ** lib_inwstr.c 37 ** 38 ** The routines winnwstr() and winwstr(). 39 ** 40 */ 41 42 #include <curses.priv.h> 43 44 MODULE_ID("$Id: lib_inwstr.c,v 1.1 2010/09/06 17:26:17 nicm Exp $") 45 46 NCURSES_EXPORT(int) 47 winnwstr(WINDOW *win, wchar_t *wstr, int n) 48 { 49 int row, col, inx; 50 int count = 0; 51 int last = 0; 52 cchar_t *text; 53 wchar_t wch; 54 55 T((T_CALLED("winnwstr(%p,%p,%d)"), win, wstr, n)); 56 if (wstr != 0) { 57 if (win) { 58 getyx(win, row, col); 59 60 text = win->_line[row].text; 61 while (count < n && count != ERR) { 62 if (!isWidecExt(text[col])) { 63 for (inx = 0; (inx < CCHARW_MAX) 64 && ((wch = text[col].chars[inx]) != 0); 65 ++inx) { 66 if (count + 1 > n) { 67 if ((count = last) == 0) { 68 count = ERR; /* error if we store nothing */ 69 } 70 break; 71 } 72 wstr[count++] = wch; 73 } 74 } 75 last = count; 76 if (++col > win->_maxx) { 77 break; 78 } 79 } 80 } 81 if (count > 0) { 82 wstr[count] = '\0'; 83 T(("winnwstr returns %s", _nc_viswbuf(wstr))); 84 } 85 } 86 returnCode(count); 87 } 88 89 /* 90 * X/Open says winwstr() returns OK if not ERR. If that is not a blunder, it 91 * must have a null termination on the string (see above). Unlike winnstr(), 92 * it does not define what happens for a negative count with winnwstr(). 93 */ 94 NCURSES_EXPORT(int) 95 winwstr(WINDOW *win, wchar_t *wstr) 96 { 97 int result = OK; 98 T((T_CALLED("winwstr(%p,%p)"), win, wstr)); 99 if (winnwstr(win, wstr, CCHARW_MAX * (win->_maxx - win->_curx + 1)) == ERR) 100 result = ERR; 101 returnCode(result); 102 } 103