1 /* $OpenBSD: lib_instr.c,v 1.3 2010/01/12 23:22:06 nicm Exp $ */ 2 3 /**************************************************************************** 4 * Copyright (c) 1998-2005,2007 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: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 * 33 * and: Eric S. Raymond <esr@snark.thyrsus.com> * 34 * and: Thomas E. Dickey 1996-on * 35 ****************************************************************************/ 36 37 /* 38 ** lib_instr.c 39 ** 40 ** The routine winnstr(). 41 ** 42 */ 43 44 #include <curses.priv.h> 45 46 MODULE_ID("$Id: lib_instr.c,v 1.3 2010/01/12 23:22:06 nicm Exp $") 47 48 NCURSES_EXPORT(int) 49 winnstr(WINDOW *win, char *str, int n) 50 { 51 int i = 0, row, col; 52 53 T((T_CALLED("winnstr(%p,%p,%d)"), win, str, n)); 54 55 if (!str) 56 returnCode(0); 57 58 if (win) { 59 getyx(win, row, col); 60 61 if (n < 0) 62 n = win->_maxx - win->_curx + 1; 63 64 for (; i < n;) { 65 #if USE_WIDEC_SUPPORT 66 cchar_t *cell = &(win->_line[row].text[col]); 67 wchar_t *wch; 68 attr_t attrs; 69 short pair; 70 int n2; 71 bool done = FALSE; 72 mbstate_t state; 73 size_t i3, n3; 74 char *tmp; 75 76 if (!isWidecExt(*cell)) { 77 n2 = getcchar(cell, 0, 0, 0, 0); 78 if (n2 > 0 79 && (wch = typeCalloc(wchar_t, (unsigned) n2 + 1)) != 0) { 80 if (getcchar(cell, wch, &attrs, &pair, 0) == OK) { 81 82 init_mb(state); 83 n3 = wcstombs(0, wch, 0); 84 if (isEILSEQ(n3) || (n3 == 0)) { 85 ; 86 } else if ((int) (n3 + i) > n) { 87 done = TRUE; 88 } else if ((tmp = typeCalloc(char, n3 + 10)) == 0) { 89 done = TRUE; 90 } else { 91 init_mb(state); 92 wcstombs(tmp, wch, n3); 93 for (i3 = 0; i3 < n3; ++i3) 94 str[i++] = tmp[i3]; 95 free(tmp); 96 } 97 } 98 free(wch); 99 if (done) 100 break; 101 } 102 } 103 #else 104 str[i++] = (char) CharOf(win->_line[row].text[col]); 105 #endif 106 if (++col > win->_maxx) { 107 break; 108 } 109 } 110 } 111 str[i] = '\0'; /* SVr4 does not seem to count the null */ 112 T(("winnstr returns %s", _nc_visbuf(str))); 113 returnCode(i); 114 } 115