SUBSTR

    Returns a string representing a substring of the specified buffer,
    range, or string.

 Syntax

    string2 := SUBSTR ({buffer | range | string}, integer1 [, integer2])

 Parameters

    buffer     A buffer containing the substring.

    range      A range containing the substring.

    string1    A string containing the substring.

    integer1   The character position at which the substring starts.  The
               first character position is 1.

    integer2   The number of characters to include in the substring.  If
               you do not specify this parameter, VAXTPU sets the
               substring's end point at the end of the specified buffer,
               range, or string.

 Example

    file_type := SUBSTR ("login.com", 6, 4);

    Returns in the variable FILE_TYPE the string ".com":  the substring
    starts at the sixth character position (the period) and contains 4
    characters (.com).  If you use a larger number for integer2 (for
    example, if you use 10), the contents of the variable are the same and
    no error is signaled.  If you omit the last parameter (in this case,
    the 4), VAXTPU sets the substring's end point at the end of the string
    "login.com".

 Related topics

    ASCII    FAO    INT    STR