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