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POSRANGE()

Syntax:     POSRANGE(<expC1>,<expC2>,<expC3>[,<expL>])

Arguments:  <expC1> and <expC2> determine the first and last
            characters of a range of characters.
            <expC3> is the string within which a search for the
            characters from the <expC1> to <expC2> range is required.
            <expL> denotes how the function should search.

Returns:    A numeric value.
            The value corresponds to the position of the character found.

Usage:      POSRANGE() will search for the first character in the
            <expC3> string from the left, which lies within the <expC!>
            to <expC2> range of characters.  If <expL> is (.T.), then the
            function will search for the first character which does not lie
            within the indicated range.  If <expC1>=CHR(0) and
            <expC2>=CHR(31) it is possible to search for control
            characters in a string.

Notes:      A 0 (zero) is returned if no character is found.

Library:    CT1.LIB


--------------------------------- Example ------------------------------

Examples:   * Searching for the first character in the
            * string.
            * "Input" which is not a control character
            input = COM_READ(1)

            ? POSRANGE(CHR(0),CHR(31),input,.T.)