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Copyright 1989 AT&T Copyright (c) 1999, Sun Microsystems, Inc. All Rights Reserved
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When distributing Covered Code, include this CDDL HEADER in each file and include the License file at usr/src/OPENSOLARIS.LICENSE. If applicable, add the following below this CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner]
strfind, strrspn, strtrns, str - string manipulations

cc [ flag ... ] file ... -lgen [ library ... ]
#include <libgen.h>

int strfind(const char *as1, const char *as2);

char *strrspn(const char *string, const char *tc);

char *strtrns(const char *string, const char *old, const char *new,
 char *result);

The strfind() function returns the offset of the first occurrence of the second string, as2, if it is a substring of string as1. If the second string is not a substring of the first string strfind() returns -1.

The strrspn() function trims characters from a string. It searches from the end of string for the first character that is not contained in tc. If such a character is found, strrspn() returns a pointer to the next character; otherwise, it returns a pointer to string.

The strtrns() function transforms string and copies it into result. Any character that appears in old is replaced with the character in the same position in new. The new result is returned.

When compiling multithreaded applications, the _REENTRANT flag must be defined on the compile line. This flag should only be used in multithreaded applications. Example 1 An example of the strfind() function.

/* find offset to substring "hello" within as1 */
i = strfind(as1, "hello");
/* trim junk from end of string */
s2 = strrspn(s1, "*?#$%");
*s2 = '\e0';
/* transform lower case to upper case */
a1[] = "abcdefghijklmnopqrstuvwxyz";
a2[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
s2 = strtrns(s1, a1, a2, s2);

See attributes(7) for descriptions of the following attributes:

ATTRIBUTE TYPE ATTRIBUTE VALUE

MT-Level MT-Safe

string (3C), attributes (7)