trusty (3) strgsub.3pub.gz

NAME

       strgsub - substitute all occurences of pattern with another string

SYNOPSIS

       #include <publib.h>
       int strgsub(char *str, const char *pat, const char *sub, size_t max);

DESCRIPTION

       strgsub finds all occurences of the pattern pat in the string str (using a method similar to strstr(3) to
       find the occurrences, i.e., no regular expressions), and replaces each with sub. If pat does not occur in
       str, no substitution is made.  The size  (including  the  terminating  '\0')  of  the  string  after  the
       substitutions may be at most max chars.  If it would be larger, no substitutions are made.

       Of course, if sub is an empty string, the occurences of the pattern are deleted from the string.

RETURN VALUE

       strgsub returns the number of substitutions made, or -1 if the result would not have fit into max chars.

EXAMPLE

       To substitute every "foo" with "bar" in a line, one might do the following.

            strgsub(line, "foo", "bar", strlen(line)+1);

SEE ALSO

       publib(3), strstr(3), strsub(3)

AUTHOR

       Lars Wirzenius (lars.wirzenius@helsinki.fi)