vreIsSimpleNumericRange {basictabler}

Determine if a value range expression is a simple range expression.

Description

vreIsSingleValue is a utility function that returns 'TRUE' if the specified value range expression is a simple range expression of the form "value1<=v<value2", where the logical comparisons can be < or <= only and the values must be numbers.

Usage

vreIsSimpleNumericRange(vre)

Arguments

vre

The value range expression to examine.

Value

'TRUE' if vre is a simple range expression, 'FALSE' otherwise.