1 /*-
2 * Copyright (c) 1992, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * %sccs.include.redist.c%
6 */
7
8 #ifndef lint
9 static char copyright[] =
10 "@(#) Copyright (c) 1992, 1993\n\
11 The Regents of the University of California. All rights reserved.\n";
12 #endif /* not lint */
13
14 #ifndef lint
15 static char sccsid[] = "@(#)pig.c 8.2 (Berkeley) 05/04/95";
16 #endif /* not lint */
17
18 #include <sys/types.h>
19
20 #include <ctype.h>
21 #include <stdio.h>
22 #include <stdlib.h>
23 #include <string.h>
24 #include <unistd.h>
25
26 void pigout __P((char *, int));
27 void usage __P((void));
28
29 int
main(argc,argv)30 main(argc, argv)
31 int argc;
32 char *argv[];
33 {
34 register int len;
35 int ch;
36 char buf[1024];
37
38 while ((ch = getopt(argc, argv, "")) != EOF)
39 switch(ch) {
40 case '?':
41 default:
42 usage();
43 }
44 argc -= optind;
45 argv += optind;
46
47 for (len = 0; (ch = getchar()) != EOF;) {
48 if (isalpha(ch)) {
49 if (len >= sizeof(buf)) {
50 (void)fprintf(stderr, "pig: ate too much!\n");
51 exit(1);
52 }
53 buf[len++] = ch;
54 continue;
55 }
56 if (len != 0) {
57 pigout(buf, len);
58 len = 0;
59 }
60 (void)putchar(ch);
61 }
62 exit(0);
63 }
64
65 void
pigout(buf,len)66 pigout(buf, len)
67 char *buf;
68 int len;
69 {
70 register int ch, start;
71 int olen;
72
73 /*
74 * If the word starts with a vowel, append "way". Don't treat 'y'
75 * as a vowel if it appears first.
76 */
77 if (index("aeiouAEIOU", buf[0]) != NULL) {
78 (void)printf("%.*sway", len, buf);
79 return;
80 }
81
82 /*
83 * Copy leading consonants to the end of the word. The unit "qu"
84 * isn't treated as a vowel.
85 */
86 for (start = 0, olen = len;
87 !index("aeiouyAEIOUY", buf[start]) && start < olen;) {
88 ch = buf[len++] = buf[start++];
89 if ((ch == 'q' || ch == 'Q') && start < olen &&
90 (buf[start] == 'u' || buf[start] == 'U'))
91 buf[len++] = buf[start++];
92 }
93 (void)printf("%.*say", olen, buf + start);
94 }
95
96 void
usage()97 usage()
98 {
99 (void)fprintf(stderr, "usage: pig\n");
100 exit(1);
101 }
102