17c478bdstevel@tonic-gate/*
27c478bdstevel@tonic-gate * CDDL HEADER START
37c478bdstevel@tonic-gate *
47c478bdstevel@tonic-gate * The contents of this file are subject to the terms of the
57c478bdstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
67c478bdstevel@tonic-gate * (the "License").  You may not use this file except in compliance
77c478bdstevel@tonic-gate * with the License.
87c478bdstevel@tonic-gate *
97c478bdstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
107c478bdstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
117c478bdstevel@tonic-gate * See the License for the specific language governing permissions
127c478bdstevel@tonic-gate * and limitations under the License.
137c478bdstevel@tonic-gate *
147c478bdstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
157c478bdstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
167c478bdstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
177c478bdstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
187c478bdstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
197c478bdstevel@tonic-gate *
207c478bdstevel@tonic-gate * CDDL HEADER END
217c478bdstevel@tonic-gate */
227c478bdstevel@tonic-gate/*
237c478bdstevel@tonic-gate * Copyright 1988 Sun Microsystems, Inc.  All rights reserved.
247c478bdstevel@tonic-gate * Use is subject to license terms.
257c478bdstevel@tonic-gate */
267c478bdstevel@tonic-gate
277c478bdstevel@tonic-gate/*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
287c478bdstevel@tonic-gate/*	  All Rights Reserved  	*/
297c478bdstevel@tonic-gate
307c478bdstevel@tonic-gate/*
317c478bdstevel@tonic-gate * University Copyright- Copyright (c) 1982, 1986, 1988
327c478bdstevel@tonic-gate * The Regents of the University of California
337c478bdstevel@tonic-gate * All Rights Reserved
347c478bdstevel@tonic-gate *
357c478bdstevel@tonic-gate * University Acknowledgment- Portions of this document are derived from
367c478bdstevel@tonic-gate * software developed by the University of California, Berkeley, and its
377c478bdstevel@tonic-gate * contributors.
387c478bdstevel@tonic-gate */
397c478bdstevel@tonic-gate
407c478bdstevel@tonic-gate#pragma ident	"%Z%%M%	%I%	%E% SMI"
417c478bdstevel@tonic-gate
427c478bdstevel@tonic-gate#include <stdio.h>
437c478bdstevel@tonic-gate
447c478bdstevel@tonic-gate/* tr - transliterate data stream */
457c478bdstevel@tonic-gateint	dflag	= 0;
467c478bdstevel@tonic-gateint	sflag	= 0;
477c478bdstevel@tonic-gateint	cflag = 0;
487c478bdstevel@tonic-gateint	save	= 0;
497c478bdstevel@tonic-gatechar	code[256];
507c478bdstevel@tonic-gatechar	squeez[256];
517c478bdstevel@tonic-gatechar	vect[256];
527c478bdstevel@tonic-gatestruct string { int last, max; char *p; } string1, string2;
537c478bdstevel@tonic-gate
54cc6c529chinint
55cc6c529chinmain(int argc, char **argv)
567c478bdstevel@tonic-gate{
57cc6c529chin	int i;
587c478bdstevel@tonic-gate	int j;
59cc6c529chin	int c, d;
607c478bdstevel@tonic-gate	char *compl;
617c478bdstevel@tonic-gate	int lastd;
627c478bdstevel@tonic-gate
637c478bdstevel@tonic-gate	string1.last = string2.last = 0;
647c478bdstevel@tonic-gate	string1.max = string2.max = 0;
657c478bdstevel@tonic-gate	string1.p = string2.p = "";
667c478bdstevel@tonic-gate
677c478bdstevel@tonic-gate	if(--argc>0) {
687c478bdstevel@tonic-gate		argv++;
697c478bdstevel@tonic-gate		if(*argv[0]=='-'&&argv[0][1]!=0) {
707c478bdstevel@tonic-gate			while(*++argv[0])
717c478bdstevel@tonic-gate				switch(*argv[0]) {
727c478bdstevel@tonic-gate				case 'c':
737c478bdstevel@tonic-gate					cflag++;
747c478bdstevel@tonic-gate					continue;
757c478bdstevel@tonic-gate				case 'd':
767c478bdstevel@tonic-gate					dflag++;
777c478bdstevel@tonic-gate					continue;
787c478bdstevel@tonic-gate				case 's':
797c478bdstevel@tonic-gate					sflag++;
807c478bdstevel@tonic-gate					continue;
817c478bdstevel@tonic-gate				}
827c478bdstevel@tonic-gate			argc--;
837c478bdstevel@tonic-gate			argv++;
847c478bdstevel@tonic-gate		}
857c478bdstevel@tonic-gate	}
867c478bdstevel@tonic-gate	if(argc>0) string1.p = argv[0];
877c478bdstevel@tonic-gate	if(argc>1) string2.p = argv[1];
887c478bdstevel@tonic-gate	for(i=0; i<256; i++)
897c478bdstevel@tonic-gate		code[i] = vect[i] = 0;
907c478bdstevel@tonic-gate	if(cflag) {
917c478bdstevel@tonic-gate		while(c = next(&string1))
927c478bdstevel@tonic-gate			vect[c&0377] = 1;
937c478bdstevel@tonic-gate		j = 0;
947c478bdstevel@tonic-gate		for(i=1; i<256; i++)
957c478bdstevel@tonic-gate			if(vect[i]==0) vect[j++] = i;
967c478bdstevel@tonic-gate		vect[j] = 0;
977c478bdstevel@tonic-gate		compl = vect;
987c478bdstevel@tonic-gate	}
997c478bdstevel@tonic-gate	for(i=0; i<256; i++)
1007c478bdstevel@tonic-gate		squeez[i] = 0;
1017c478bdstevel@tonic-gate	lastd = 0;
1027c478bdstevel@tonic-gate	for(;;){
1037c478bdstevel@tonic-gate		if(cflag) c = *compl++;
1047c478bdstevel@tonic-gate		else c = next(&string1);
1057c478bdstevel@tonic-gate		if(c==0) break;
1067c478bdstevel@tonic-gate		d = next(&string2);
1077c478bdstevel@tonic-gate		if(d==0) d = lastd;
1087c478bdstevel@tonic-gate		else lastd = d;
1097c478bdstevel@tonic-gate		squeez[d&0377] = 1;
1107c478bdstevel@tonic-gate		code[c&0377] = dflag?1:d;
1117c478bdstevel@tonic-gate	}
1127c478bdstevel@tonic-gate	while(d = next(&string2))
1137c478bdstevel@tonic-gate		squeez[d&0377] = 1;
1147c478bdstevel@tonic-gate	squeez[0] = 1;
1157c478bdstevel@tonic-gate	for(i=0;i<256;i++) {
1167c478bdstevel@tonic-gate		if(code[i]==0) code[i] = i;
1177c478bdstevel@tonic-gate		else if(dflag) code[i] = 0;
1187c478bdstevel@tonic-gate	}
1197c478bdstevel@tonic-gate
1207c478bdstevel@tonic-gate	clearerr(stdout);
1217c478bdstevel@tonic-gate	while((c=getc(stdin)) != EOF ) {
1227c478bdstevel@tonic-gate		if(c == 0) continue;
1237c478bdstevel@tonic-gate		if(c = code[c&0377]&0377)
1247c478bdstevel@tonic-gate			if(!sflag || c!=save || !squeez[c&0377]) {
1257c478bdstevel@tonic-gate				(void)putchar(save = c);
1267c478bdstevel@tonic-gate				if(ferror(stdout))
1277c478bdstevel@tonic-gate					exit(1);
1287c478bdstevel@tonic-gate			}
1297c478bdstevel@tonic-gate	}
130cc6c529chin	return (0);
1317c478bdstevel@tonic-gate}
1327c478bdstevel@tonic-gate
133cc6c529chinint
134cc6c529chinnext(struct string *s)
1357c478bdstevel@tonic-gate{
1367c478bdstevel@tonic-gate
1377c478bdstevel@tonic-gateagain:
1387c478bdstevel@tonic-gate	if(s->max) {
1397c478bdstevel@tonic-gate		if(s->last++ < s->max)
1407c478bdstevel@tonic-gate			return(s->last);
1417c478bdstevel@tonic-gate		s->max = s->last = 0;
1427c478bdstevel@tonic-gate	}
1437c478bdstevel@tonic-gate	if(s->last && *s->p=='-') {
1447c478bdstevel@tonic-gate		(void)nextc(s);
1457c478bdstevel@tonic-gate		s->max = nextc(s);
1467c478bdstevel@tonic-gate		if(s->max==0) {
1477c478bdstevel@tonic-gate			s->p--;
1487c478bdstevel@tonic-gate			return('-');
1497c478bdstevel@tonic-gate		}
1507c478bdstevel@tonic-gate		if(s->max < s->last)  {
1517c478bdstevel@tonic-gate			s->last = s->max-1;
1527c478bdstevel@tonic-gate			return('-');
1537c478bdstevel@tonic-gate		}
1547c478bdstevel@tonic-gate		goto again;
1557c478bdstevel@tonic-gate	}
1567c478bdstevel@tonic-gate	return(s->last = nextc(s));
1577c478bdstevel@tonic-gate}
1587c478bdstevel@tonic-gate
159cc6c529chinint
160cc6c529chinnextc(struct string *s)
1617c478bdstevel@tonic-gate{
162cc6c529chin	int c, i, n;
1637c478bdstevel@tonic-gate
1647c478bdstevel@tonic-gate	c = *s->p++;
1657c478bdstevel@tonic-gate	if(c=='\\') {
1667c478bdstevel@tonic-gate		i = n = 0;
1677c478bdstevel@tonic-gate		while(i<3 && (c = *s->p)>='0' && c<='7') {
1687c478bdstevel@tonic-gate			n = n*8 + c - '0';
1697c478bdstevel@tonic-gate			i++;
1707c478bdstevel@tonic-gate			s->p++;
1717c478bdstevel@tonic-gate		}
1727c478bdstevel@tonic-gate		if(i>0) c = n;
1737c478bdstevel@tonic-gate		else c = *s->p++;
1747c478bdstevel@tonic-gate	}
1757c478bdstevel@tonic-gate	if(c==0) *--s->p = 0;
1767c478bdstevel@tonic-gate	return(c&0377);
1777c478bdstevel@tonic-gate}
178