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/* $OpenBSD: pig.c,v 1.16 2016/01/07 16:00:33 tb Exp $ */
/* $NetBSD: pig.c,v 1.2 1995/03/23 08:41:40 cgd Exp $ */
/*-
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <ctype.h>
#include <err.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
void pigout(char *, int);
__dead void usage(void);
int
main(int argc, char *argv[])
{
int len;
int ch;
char buf[1024];
if (pledge("stdio", NULL) == -1)
err(1, "pledge");
while ((ch = getopt(argc, argv, "")) != -1)
switch(ch) {
case '?':
default:
usage();
}
argc -= optind;
argv += optind;
for (len = 0; (ch = getchar()) != EOF;) {
if (isalpha(ch)) {
if (len >= sizeof(buf))
errx(1, "ate too much!");
buf[len++] = ch;
continue;
}
if (len != 0) {
pigout(buf, len);
len = 0;
}
(void)putchar(ch);
}
return 0;
}
void
pigout(char *buf, int len)
{
int ch, start, i;
int olen, allupper, firstupper;
/* See if the word is all upper case */
allupper = firstupper = isupper((unsigned char)buf[0]);
for (i = 1; i < len && allupper; i++)
allupper = allupper && isupper((unsigned char)buf[i]);
/*
* If the word starts with a vowel, append "way". Don't treat 'y'
* as a vowel if it appears first.
*/
if (strchr("aeiouAEIOU", buf[0]) != NULL) {
(void)printf("%.*s%s", len, buf,
allupper ? "WAY" : "way");
return;
}
/*
* Copy leading consonants to the end of the word. The unit "qu"
* isn't treated as a vowel.
*/
if (!allupper)
buf[0] = tolower((unsigned char)buf[0]);
for (start = 0, olen = len;
!strchr("aeiouyAEIOUY", buf[start]) && start < olen;) {
ch = buf[len++] = buf[start++];
if ((ch == 'q' || ch == 'Q') && start < olen &&
(buf[start] == 'u' || buf[start] == 'U'))
buf[len++] = buf[start++];
}
if (firstupper)
buf[start] = toupper((unsigned char)buf[start]);
(void)printf("%.*s%s", olen, buf + start, allupper ? "AY" : "ay");
}
void
usage(void)
{
(void)fprintf(stderr, "usage: pig\n");
exit(1);
}
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