1 /* $NetBSD: pig.c,v 1.2 1995/03/23 08:41:40 cgd Exp $ */ 2 3 /*- 4 * Copyright (c) 1992, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #ifndef lint 37 static char copyright[] = 38 "@(#) Copyright (c) 1992, 1993\n\ 39 The Regents of the University of California. All rights reserved.\n"; 40 #endif /* not lint */ 41 42 #ifndef lint 43 #if 0 44 static char sccsid[] = "@(#)pig.c 8.1 (Berkeley) 5/31/93"; 45 #else 46 static char rcsid[] = "$NetBSD: pig.c,v 1.2 1995/03/23 08:41:40 cgd Exp $"; 47 #endif 48 #endif /* not lint */ 49 50 #include <sys/types.h> 51 52 #include <ctype.h> 53 #include <stdio.h> 54 #include <stdlib.h> 55 #include <string.h> 56 57 void pigout __P((char *, int)); 58 void usage __P((void)); 59 60 int 61 main(argc, argv) 62 int argc; 63 char *argv[]; 64 { 65 register int len; 66 int ch; 67 char buf[1024]; 68 69 while ((ch = getopt(argc, argv, "")) != EOF) 70 switch(ch) { 71 case '?': 72 default: 73 usage(); 74 } 75 argc -= optind; 76 argv += optind; 77 78 for (len = 0; (ch = getchar()) != EOF;) { 79 if (isalpha(ch)) { 80 if (len >= sizeof(buf)) { 81 (void)fprintf(stderr, "pig: ate too much!\n"); 82 exit(1); 83 } 84 buf[len++] = ch; 85 continue; 86 } 87 if (len != 0) { 88 pigout(buf, len); 89 len = 0; 90 } 91 (void)putchar(ch); 92 } 93 exit(0); 94 } 95 96 void 97 pigout(buf, len) 98 char *buf; 99 int len; 100 { 101 register int ch, start; 102 int olen; 103 104 /* 105 * If the word starts with a vowel, append "way". Don't treat 'y' 106 * as a vowel if it appears first. 107 */ 108 if (index("aeiouAEIOU", buf[0]) != NULL) { 109 (void)printf("%.*sway", len, buf); 110 return; 111 } 112 113 /* 114 * Copy leading consonants to the end of the word. The unit "qu" 115 * isn't treated as a vowel. 116 */ 117 for (start = 0, olen = len; 118 !index("aeiouyAEIOUY", buf[start]) && start < olen;) { 119 ch = buf[len++] = buf[start++]; 120 if ((ch == 'q' || ch == 'Q') && start < olen && 121 (buf[start] == 'u' || buf[start] == 'U')) 122 buf[len++] = buf[start++]; 123 } 124 (void)printf("%.*say", olen, buf + start); 125 } 126 127 void 128 usage() 129 { 130 (void)fprintf(stderr, "usage: pig\n"); 131 exit(1); 132 } 133