Function SubStr() Foundation
Extracts a string from a character string.
SubStr( <cString>, <nStart>, [<nCount>]) --> cSubString
SubStr() returns part of a character string.
The character function SubStr() extracts part of a character string starting at the position <nStart>. If <nStart> has a negative value, the starting position is counted backwards from the end of the character string.
The functions SubStr(), Left() and Right() all extract of parts of character strings and are often used with the functions At() and RAt() which determine the position of a substring within a character string.
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