1/**************************************************************************** 2 * Copyright (c) 1998-2005,2007 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: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 * 31 * and: Eric S. Raymond <esr@snark.thyrsus.com> * 32 * and: Thomas E. Dickey 1996-on * 33 ****************************************************************************/ 34 35/* 36** lib_instr.c 37** 38** The routine winnstr(). 39** 40*/ 41 42#include <curses.priv.h> 43 44MODULE_ID("$Id: lib_instr.c,v 1.16 2007/07/21 20:18:10 tom Exp $") 45 46NCURSES_EXPORT(int) 47winnstr(WINDOW *win, char *str, int n) 48{ 49 int i = 0, row, col; 50 51 T((T_CALLED("winnstr(%p,%p,%d)"), win, str, n)); 52 53 if (!str) 54 returnCode(0); 55 56 if (win) { 57 getyx(win, row, col); 58 59 if (n < 0) 60 n = win->_maxx - win->_curx + 1; 61 62 for (; i < n;) { 63#if USE_WIDEC_SUPPORT 64 cchar_t *cell = &(win->_line[row].text[col]); 65 wchar_t *wch; 66 attr_t attrs; 67 short pair; 68 int n2; 69 bool done = FALSE; 70 mbstate_t state; 71 size_t i3, n3; 72 char *tmp; 73 74 if (!isWidecExt(*cell)) { 75 n2 = getcchar(cell, 0, 0, 0, 0); 76 if (n2 > 0 77 && (wch = typeCalloc(wchar_t, (unsigned) n2 + 1)) != 0) { 78 if (getcchar(cell, wch, &attrs, &pair, 0) == OK) { 79 80 init_mb(state); 81 n3 = wcstombs(0, wch, 0); 82 if (isEILSEQ(n3) || (n3 == 0)) { 83 ; 84 } else if ((int) (n3 + i) > n) { 85 done = TRUE; 86 } else if ((tmp = typeCalloc(char, n3 + 10)) == 0) { 87 done = TRUE; 88 } else { 89 init_mb(state); 90 wcstombs(tmp, wch, n3); 91 for (i3 = 0; i3 < n3; ++i3) 92 str[i++] = tmp[i3]; 93 free(tmp); 94 } 95 } 96 free(wch); 97 if (done) 98 break; 99 } 100 } 101#else 102 str[i++] = (char) CharOf(win->_line[row].text[col]); 103#endif 104 if (++col > win->_maxx) { 105 break; 106 } 107 } 108 } 109 str[i] = '\0'; /* SVr4 does not seem to count the null */ 110 T(("winnstr returns %s", _nc_visbuf(str))); 111 returnCode(i); 112} 113