- From: K.Kawaguchi <k-kawa@bigfoot.com>
- Date: Wed, 24 Jan 2001 13:17:07 -0800
- To: www-xml-schema-comments@w3.org

spec says > 3.2.5.1 Lexical representation > decimal has a lexical representation consisting of a finite-length > sequence of decimal digits (#x30-#x39) separated by a period as a > decimal indicator, in accordance with the scale and precision facets, > with an optional leading sign. If the sign is omitted, "+" is assumed. > Leading and trailing zeroes are optional. If the fractional part is > zero, the period and following zero(es) can be omitted. > For example: -1.23, 12678967.543233, +100000.00. I have a problem understanding what exactly this "decimal digits separated by a period" means. So let me ask some quick questions. Is ".001" a valid decimal? Is "100." a valid decimal? (if "separation" allows 0-length, it should be valid) If so, then ".000" is also a valid decimal. Is this correct? If so, by applying a rule (the fracional part is zero, the period and following zeroes can be omitted), "" is also a valid decimal, which means 0. Is this correct? And by the adding optional leading sign, "+" is another valid decimal that means 0. Is this correct? I really hope BNF of every datatype will be attached to the recommendation spec. Sometimes, natural language is not accurate enough. regards, ---------------------- K.Kawaguchi E-Mail: k-kawa@bigfoot.com

Received on Wednesday, 24 January 2001 16:17:03 UTC