File: | src/games/pig/pig.c |
Warning: | line 60, column 2 Value stored to 'argv' is never read |
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1 | /* $OpenBSD: pig.c,v 1.17 2016/03/07 12:07:56 mestre Exp $ */ |
2 | /* $NetBSD: pig.c,v 1.2 1995/03/23 08:41:40 cgd Exp $ */ |
3 | |
4 | /*- |
5 | * Copyright (c) 1992, 1993 |
6 | * The Regents of the University of California. All rights reserved. |
7 | * |
8 | * Redistribution and use in source and binary forms, with or without |
9 | * modification, are permitted provided that the following conditions |
10 | * are met: |
11 | * 1. Redistributions of source code must retain the above copyright |
12 | * notice, this list of conditions and the following disclaimer. |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
14 | * notice, this list of conditions and the following disclaimer in the |
15 | * documentation and/or other materials provided with the distribution. |
16 | * 3. Neither the name of the University nor the names of its contributors |
17 | * may be used to endorse or promote products derived from this software |
18 | * without specific prior written permission. |
19 | * |
20 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
21 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
22 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
23 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
24 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
25 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
26 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
27 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
28 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
29 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
30 | * SUCH DAMAGE. |
31 | */ |
32 | |
33 | #include <ctype.h> |
34 | #include <err.h> |
35 | #include <stdio.h> |
36 | #include <stdlib.h> |
37 | #include <string.h> |
38 | #include <unistd.h> |
39 | |
40 | void pigout(char *, int); |
41 | __dead__attribute__((__noreturn__)) void usage(void); |
42 | |
43 | int |
44 | main(int argc, char *argv[]) |
45 | { |
46 | int len; |
47 | int ch; |
48 | char buf[1024]; |
49 | |
50 | if (pledge("stdio", NULL((void *)0)) == -1) |
51 | err(1, "pledge"); |
52 | |
53 | while ((ch = getopt(argc, argv, "h")) != -1) |
54 | switch(ch) { |
55 | case 'h': |
56 | default: |
57 | usage(); |
58 | } |
59 | argc -= optind; |
60 | argv += optind; |
Value stored to 'argv' is never read | |
61 | |
62 | for (len = 0; (ch = getchar()(!__isthreaded ? (--((&__sF[0]))->_r < 0 ? __srget( (&__sF[0])) : (int)(*((&__sF[0]))->_p++)) : (getc) ((&__sF[0])))) != EOF(-1);) { |
63 | if (isalpha(ch)) { |
64 | if (len >= sizeof(buf)) |
65 | errx(1, "ate too much!"); |
66 | buf[len++] = ch; |
67 | continue; |
68 | } |
69 | if (len != 0) { |
70 | pigout(buf, len); |
71 | len = 0; |
72 | } |
73 | (void)putchar(ch)(!__isthreaded ? __sputc(ch, (&__sF[1])) : (putc)(ch, (& __sF[1]))); |
74 | } |
75 | return 0; |
76 | } |
77 | |
78 | void |
79 | pigout(char *buf, int len) |
80 | { |
81 | int ch, start, i; |
82 | int olen, allupper, firstupper; |
83 | |
84 | /* See if the word is all upper case */ |
85 | allupper = firstupper = isupper((unsigned char)buf[0]); |
86 | for (i = 1; i < len && allupper; i++) |
87 | allupper = allupper && isupper((unsigned char)buf[i]); |
88 | |
89 | /* |
90 | * If the word starts with a vowel, append "way". Don't treat 'y' |
91 | * as a vowel if it appears first. |
92 | */ |
93 | if (strchr("aeiouAEIOU", buf[0]) != NULL((void *)0)) { |
94 | (void)printf("%.*s%s", len, buf, |
95 | allupper ? "WAY" : "way"); |
96 | return; |
97 | } |
98 | |
99 | /* |
100 | * Copy leading consonants to the end of the word. The unit "qu" |
101 | * isn't treated as a vowel. |
102 | */ |
103 | if (!allupper) |
104 | buf[0] = tolower((unsigned char)buf[0]); |
105 | for (start = 0, olen = len; |
106 | !strchr("aeiouyAEIOUY", buf[start]) && start < olen;) { |
107 | ch = buf[len++] = buf[start++]; |
108 | if ((ch == 'q' || ch == 'Q') && start < olen && |
109 | (buf[start] == 'u' || buf[start] == 'U')) |
110 | buf[len++] = buf[start++]; |
111 | } |
112 | if (firstupper) |
113 | buf[start] = toupper((unsigned char)buf[start]); |
114 | (void)printf("%.*s%s", olen, buf + start, allupper ? "AY" : "ay"); |
115 | } |
116 | |
117 | void |
118 | usage(void) |
119 | { |
120 | (void)fprintf(stderr(&__sF[2]), "usage: %s\n", getprogname()); |
121 | exit(1); |
122 | } |