mystring.c (b97fa2ef508bb1cc99621edb8b6d03845b55b8bd) mystring.c (afb033d5c4f01a464f57fe8e68d741246d9df492)
1/*-
2 * Copyright (c) 1991, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * Kenneth Almquist.
7 *
8 * Redistribution and use in source and binary forms, with or without

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28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 *
1/*-
2 * Copyright (c) 1991, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * Kenneth Almquist.
7 *
8 * Redistribution and use in source and binary forms, with or without

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28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 *
36 * $Id$
36 * $Id: mystring.c,v 1.7 1997/02/22 13:58:38 peter Exp $
37 */
38
39#ifndef lint
40static char const sccsid[] = "@(#)mystring.c 8.2 (Berkeley) 5/4/95";
41#endif /* not lint */
42
43/*
44 * String functions.

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71/*
72 * scopyn - copy a string from "from" to "to", truncating the string
73 * if necessary. "To" is always nul terminated, even if
74 * truncation is performed. "Size" is the size of "to".
75 */
76
77void
78scopyn(from, to, size)
37 */
38
39#ifndef lint
40static char const sccsid[] = "@(#)mystring.c 8.2 (Berkeley) 5/4/95";
41#endif /* not lint */
42
43/*
44 * String functions.

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71/*
72 * scopyn - copy a string from "from" to "to", truncating the string
73 * if necessary. "To" is always nul terminated, even if
74 * truncation is performed. "Size" is the size of "to".
75 */
76
77void
78scopyn(from, to, size)
79 register char const *from;
80 register char *to;
81 register int size;
79 char const *from;
80 char *to;
81 int size;
82 {
83
84 while (--size > 0) {
85 if ((*to++ = *from++) == '\0')
86 return;
87 }
88 *to = '\0';
89}
90
91
92/*
93 * prefix -- see if pfx is a prefix of string.
94 */
95
96int
97prefix(pfx, string)
82 {
83
84 while (--size > 0) {
85 if ((*to++ = *from++) == '\0')
86 return;
87 }
88 *to = '\0';
89}
90
91
92/*
93 * prefix -- see if pfx is a prefix of string.
94 */
95
96int
97prefix(pfx, string)
98 register char const *pfx;
99 register char const *string;
98 char const *pfx;
99 char const *string;
100 {
101 while (*pfx) {
102 if (*pfx++ != *string++)
103 return 0;
104 }
105 return 1;
106}
107

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124
125
126/*
127 * Check for a valid number. This should be elsewhere.
128 */
129
130int
131is_number(p)
100 {
101 while (*pfx) {
102 if (*pfx++ != *string++)
103 return 0;
104 }
105 return 1;
106}
107

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124
125
126/*
127 * Check for a valid number. This should be elsewhere.
128 */
129
130int
131is_number(p)
132 register const char *p;
132 const char *p;
133 {
134 do {
135 if (! is_digit(*p))
136 return 0;
137 } while (*++p != '\0');
138 return 1;
139}
133 {
134 do {
135 if (! is_digit(*p))
136 return 0;
137 } while (*++p != '\0');
138 return 1;
139}