NAME

strfind, strrspn, strtrns − string manipulations

SYNOPSIS

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 ∗str, const char ∗old, const char ∗new,
 char ∗result);

DESCRIPTION

strfind returns the offset of the second string, as2, if it is a substring of string as1. 

strrspn returns a pointer to the first character in the string to be trimmed.  This character is the first character of a trailing substring of string that is composed completely of characters from tc. 

strtrns transforms str and copies it into result.  Any character that appears in old is replaced with the character in the same position in new.  The modified result is returned. 

EXAMPLES

/∗ find pointer to substring "hello" in as1 ∗/
i = strfind(as1, "hello");
/∗ trim junk from end of string ∗/
s2 = strrspn(s1, "∗?#$%");
∗s2 = ’\0’;
/∗ transform lower case to upper case ∗/
a1[] = "abcdefghijklmnopqrstuvwxyz";
a2[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
s2 = strtrns(s1, a1, a2, s2);

SEE ALSO

string(3C). 

DIAGNOSTICS

If the second string is not a substring of the first string strfind returns −1. 

CX/UX Programmer’s Reference Manual