DMNFTF — Incomplete text in 10.3.4.3

10.3.4.3 contains the following:

Additional constraints on input domains:
1. start position must be a non-zero integer (0 scale number) in the range [-L..L], where L is the length of the string. length must be in the range [1..E], where E is L – start position if start position is positive,
and –start position otherwise.
2. flags must be …

(2) needs to be completed or removed.

Table 56 (beta3) refers by superscript 2 to the 'additional constraints on input domains' (but for some reason these constraints are before the table - maybe should be after - and there are several tables with these additional constraints, they should be consistent). Constraint 2 should be as revised. We need a normative reference to XPath 2.0 http://www.w3.org/TR/xpath-functions