[Bug 28550] New: [FO31] format-number: "positive" and "negative"

https://www.w3.org/Bugs/Public/show_bug.cgi?id=28550

            Bug ID: 28550
           Summary: [FO31] format-number: "positive" and "negative"
           Product: XPath / XQuery / XSLT
           Version: Last Call drafts
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Functions and Operators 3.1
          Assignee: mike@saxonica.com
          Reporter: mike@saxonica.com
        QA Contact: public-qt-comments@w3.org

The use of the terms "positive" and "negative" in the spec of format-number()
is not as precise as it could be.

4.7.3 bullet 1 says "If the picture-string contains two sub-pictures, the first
is used for positive values and the second for negative values." (What about
zero?)

4.7.4 para 2 says: "If there are two sub-pictures, then these rules are applied
to one sub-picture to obtain the values that apply to positive numbers, and to
the other to obtain the values that apply to negative numbers. "

4.7.5 rule 2 says: "In the rules below, the positive sub-picture and its
associated variables are used if the input number is positive, and the negative
sub-picture and its associated variables are used otherwise. Negative zero is
taken as negative, positive zero as positive." (This implies that for decimals,
where zero is unsigned, the negative sub-picture is used to format decimal
zero, which would lead to it having a minus sign prepended.)

I think the problem is essentially editorial, there's no room for doubt about
the intent, but it definitely needs tidying up.

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Received on Thursday, 23 April 2015 15:09:34 UTC