stepCompare#

ISO 10303 compliant string ordering comparison function.

Performs lexicographical comparison following STEP (ISO 10303) conventions:

• Underscore characters (_) are treated as spaces for comparison
• Standard Unicode code point ordering is used otherwise

first: The first string to compare second: The second string to compare Returns:

• -1 if first is less than second
• 0 if first is equal to second
• 1 if first is greater than second