1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 1997 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* Copyright (c) 1988 AT&T */ 28 /* All Rights Reserved */ 29 30 /* 31 * University Copyright- Copyright (c) 1982, 1986, 1988 32 * The Regents of the University of California 33 * All Rights Reserved 34 * 35 * University Acknowledgment- Portions of this document are derived from 36 * software developed by the University of California, Berkeley, and its 37 * contributors. 38 */ 39 40 /*LINTLIBRARY*/ 41 42 #include <sys/types.h> 43 #include "curses_inc.h" 44 45 /* 46 * Read in ncols worth of data from window win and assign the 47 * chars to string. NULL terminate string upon completion. 48 * Return the number of chtypes copied. 49 */ 50 51 int 52 winchnstr(WINDOW *win, chtype *string, int ncols) 53 { 54 chtype *ptr = &(win->_y[win->_cury][win->_curx]); 55 int counter = 0; 56 int maxcols = win->_maxx - win->_curx; 57 int eucw, scrw, s; 58 chtype rawc, attr, wc; 59 60 if (ncols < 0) 61 ncols = MAXINT; 62 63 while (ISCBIT(*ptr)) { 64 ptr--; 65 maxcols++; 66 } 67 68 while ((counter < ncols) && maxcols > 0) { 69 eucw = mbeucw((int) RBYTE(*ptr)); 70 scrw = mbscrw((int) RBYTE(*ptr)); 71 72 if (counter + eucw > ncols) 73 break; 74 for (s = 0; s < scrw; s++, maxcols--, ptr++) { 75 attr = _ATTR(*ptr); 76 rawc = _CHAR(*ptr); 77 if ((wc = RBYTE(rawc)) == MBIT) 78 continue; 79 *string++ = wc | attr; 80 counter++; 81 if ((wc = LBYTE(rawc) | MBIT) == MBIT) 82 continue; 83 *string++ = wc | attr; 84 counter++; 85 } 86 } 87 if (counter < ncols) 88 *string = (chtype) 0; 89 return (counter); 90 } 91