Home | History | Annotate | Download | only in gen
      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 (the "License").
      6  * You may not use this file except in compliance with the License.
      7  *
      8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
      9  * or http://www.opensolaris.org/os/licensing.
     10  * See the License for the specific language governing permissions
     11  * and limitations under the License.
     12  *
     13  * When distributing Covered Code, include this CDDL HEADER in each
     14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
     15  * If applicable, add the following below this CDDL HEADER, with the
     16  * fields enclosed by brackets "[]" replaced with your own identifying
     17  * information: Portions Copyright [yyyy] [name of copyright owner]
     18  *
     19  * CDDL HEADER END
     20  */
     21 
     22 /*
     23  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
     24  * Use is subject to license terms.
     25  */
     26 
     27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
     28 
     29 #include "lint.h"
     30 #include <euc.h>
     31 #include <ctype.h>
     32 
     33 /*
     34  * euccol(s) returns the screen column width of the EUC char.
     35  */
     36 int
     37 euccol(const unsigned char *s)
     38 {
     39 
     40 	if (ISASCII(*s))
     41 		return (1);
     42 	else
     43 		switch (*s) {
     44 		case SS2:
     45 			return (scrw2);
     46 		case SS3:
     47 			return (scrw3);
     48 		default: /* code set 1 */
     49 			return (scrw1);
     50 		}
     51 }
     52 
     53 /*
     54  * euclen(s,n) returns the code width of the  EUC char.
     55  * May also be implemented as a macro.
     56  */
     57 int
     58 euclen(const unsigned char *s)
     59 {
     60 
     61 	if (ISASCII(*s))
     62 		return (1);
     63 	else
     64 		switch (*s) {
     65 		case SS2:
     66 			return (eucw2 + 1); /* include SS2 */
     67 		case SS3:
     68 			return (eucw3 + 1); /* include SS3 */
     69 		default: /* code set 1 */
     70 			return (eucw1);
     71 		}
     72 }
     73 
     74 /* this function will return the number of display column for a */
     75 /* given euc string.						*/
     76 int
     77 eucscol(const unsigned char *s)
     78 
     79 {
     80 	int	col = 0;
     81 
     82 	while (*s) { /* end if euc char is a NULL character */
     83 		if (ISASCII(*s)) {
     84 			col += 1;
     85 			s++;
     86 		}
     87 		else
     88 			switch (*s) {
     89 			case SS2:
     90 				col += scrw2;
     91 				s += (eucw2 +1);
     92 				break;
     93 			case SS3:
     94 				col += scrw3;
     95 				s += (eucw3 +1);
     96 				break;
     97 			default:	/* code set 1 */
     98 				col += scrw1;
     99 				s += eucw1;
    100 				break;
    101 			}
    102 
    103 	}
    104 	return (col);
    105 }
    106