Extracts a sub-string out of an existing string.
StrSub (string, start, length)
(s) string the string from which the sub-string is to be extracted.
(i) start character position within string where the sub-string starts. The first character of the string is at position 1.
(i) length length of desired sub-string. If you specify a length of zero (0) it will return a null string. If you specify a length of -1 it will extract the rest of the string.
(s) sub-string of parameter string or "".
This function extracts a sub-string from within a "target" string. Starting at the "start" position, it copies up to "length" characters into the sub-string.
a = "My dog has fleas"
animal = StrSub(a, 4, 3)
Message("STRSUB", "My animal is a %animal%")