Name

function::strpos — Returns location of a substring within another string

Synopsis

    strpos:long(s1:string,s2:string)

Arguments

s1

string to search in

s2

substring to find

Description

This function returns location of the first occurence of string s2 within s1, namely the return value is 0 in case s2 is a prefix of s1. If s2 is not a substring of s1, then the return value is -1.