1 /**************************************************************************** 2 * Copyright (c) 2002-2009,2011 Free Software Foundation, Inc. * 3 * * 4 * Permission is hereby granted, free of charge, to any person obtaining a * 5 * copy of this software and associated documentation files (the * 6 * "Software"), to deal in the Software without restriction, including * 7 * without limitation the rights to use, copy, modify, merge, publish, * 8 * distribute, distribute with modifications, sublicense, and/or sell * 9 * copies of the Software, and to permit persons to whom the Software is * 10 * furnished to do so, subject to the following conditions: * 11 * * 12 * The above copyright notice and this permission notice shall be included * 13 * in all copies or substantial portions of the Software. * 14 * * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 18 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 21 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 22 * * 23 * Except as contained in this notice, the name(s) of the above copyright * 24 * holders shall not be used in advertising or otherwise to promote the * 25 * sale, use or other dealings in this Software without prior written * 26 * authorization. * 27 ****************************************************************************/ 28 29 /**************************************************************************** 30 * Author: Thomas Dickey * 31 ****************************************************************************/ 32 33 /* 34 ** lib_inwstr.c 35 ** 36 ** The routines winnwstr() and winwstr(). 37 ** 38 */ 39 40 #include <curses.priv.h> 41 42 MODULE_ID("$Id: lib_inwstr.c,v 1.6 2011/05/28 22:49:49 tom Exp $") 43 44 NCURSES_EXPORT(int) 45 winnwstr(WINDOW *win, wchar_t *wstr, int n) 46 { 47 int row, col, inx; 48 int count = 0; 49 int last = 0; 50 cchar_t *text; 51 wchar_t wch; 52 53 T((T_CALLED("winnwstr(%p,%p,%d)"), (void *) win, (void *) wstr, n)); 54 if (wstr != 0) { 55 if (win) { 56 getyx(win, row, col); 57 58 text = win->_line[row].text; 59 while (count < n && count != ERR) { 60 if (!isWidecExt(text[col])) { 61 for (inx = 0; (inx < CCHARW_MAX) 62 && ((wch = text[col].chars[inx]) != 0); 63 ++inx) { 64 if (count + 1 > n) { 65 if ((count = last) == 0) { 66 count = ERR; /* error if we store nothing */ 67 } 68 break; 69 } 70 wstr[count++] = wch; 71 } 72 } 73 last = count; 74 if (++col > win->_maxx) { 75 break; 76 } 77 } 78 } 79 if (count > 0) { 80 wstr[count] = '\0'; 81 T(("winnwstr returns %s", _nc_viswbuf(wstr))); 82 } 83 } 84 returnCode(count); 85 } 86 87 /* 88 * X/Open says winwstr() returns OK if not ERR. If that is not a blunder, it 89 * must have a null termination on the string (see above). Unlike winnstr(), 90 * it does not define what happens for a negative count with winnwstr(). 91 */ 92 NCURSES_EXPORT(int) 93 winwstr(WINDOW *win, wchar_t *wstr) 94 { 95 int result = OK; 96 97 T((T_CALLED("winwstr(%p,%p)"), (void *) win, (void *) wstr)); 98 if (win == 0) { 99 result = ERR; 100 } else if (winnwstr(win, wstr, 101 CCHARW_MAX * (win->_maxx - win->_curx + 1)) == ERR) { 102 result = ERR; 103 } 104 returnCode(result); 105 } 106