136 lines
3.8 KiB
C
136 lines
3.8 KiB
C
/* $NetBSD: pig.c,v 1.15 2012/06/19 05:46:09 dholland Exp $ */
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/*-
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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__COPYRIGHT("@(#) Copyright (c) 1992, 1993\
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The Regents of the University of California. All rights reserved.");
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#endif /* not lint */
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)pig.c 8.2 (Berkeley) 5/4/95";
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#else
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__RCSID("$NetBSD: pig.c,v 1.15 2012/06/19 05:46:09 dholland Exp $");
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#endif
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#endif /* not lint */
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#include <sys/types.h>
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#include <ctype.h>
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#include <err.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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int main(int, char *[]);
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static void pigout(char *, int);
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static void usage(void) __dead;
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int
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main(int argc, char *argv[])
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{
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int len;
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int ch;
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char buf[1024];
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while ((ch = getopt(argc, argv, "")) != -1)
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switch(ch) {
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case '?':
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default:
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usage();
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}
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argc -= optind;
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argv += optind;
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for (len = 0; (ch = getchar()) != EOF;) {
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if (isalpha(ch)) {
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if ((size_t)len >= sizeof(buf))
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errx(1, "ate too much!");
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buf[len++] = ch;
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continue;
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}
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if (len != 0) {
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pigout(buf, len);
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len = 0;
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}
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(void)putchar(ch);
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}
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exit(0);
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}
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static void
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pigout(char *buf, int len)
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{
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int ch, start, i;
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int olen, allupper, firstupper;
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/* See if the word is all upper case */
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allupper = firstupper = isupper((unsigned char)buf[0]);
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for (i = 1; i < len && allupper; i++)
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allupper = allupper && isupper((unsigned char)buf[i]);
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/*
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* If the word starts with a vowel, append "way". Don't treat 'y'
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* as a vowel if it appears first.
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*/
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if (strchr("aeiouAEIOU", buf[0]) != NULL) {
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(void)printf("%.*s%s", len, buf,
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allupper ? "WAY" : "way");
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return;
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}
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/*
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* Copy leading consonants to the end of the word. The unit "qu"
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* isn't treated as a vowel.
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*/
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if (!allupper)
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buf[0] = tolower((unsigned char)buf[0]);
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for (start = 0, olen = len;
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!strchr("aeiouyAEIOUY", buf[start]) && start < olen;) {
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ch = buf[len++] = buf[start++];
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if ((ch == 'q' || ch == 'Q') && start < olen &&
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(buf[start] == 'u' || buf[start] == 'U'))
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buf[len++] = buf[start++];
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}
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if (firstupper)
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buf[start] = toupper((unsigned char)buf[start]);
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(void)printf("%.*s%s", olen, buf + start, allupper ? "AY" : "ay");
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}
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static void
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usage(void)
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{
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(void)fprintf(stderr, "usage: pig\n");
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exit(1);
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}
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