[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: Philosophy of XML datatypes (was: What is an integer?(was:
Previously Roger wrote: The value of the <num> element -- 44 -- represents an integer. Peter Flynn responded: No, the *value* of the <num> element *is* an integer. It's the '44' that *represents* an integer. Ghislain Fourny followed up with: Formally, in XML Schema, this is captured by types having a value space and a lexical space. The value space of xs:integer is the set of the actual mathematical integers, so Z. The lexical space of xs:integer is the set of strings corresponding to the decimal representation of an integer. Roger: The set of strings matching this regex: [+-]?[0-9]+ The lexical mapping of xs:integer maps each string representation (also called a literal, this is what appears in XML as text) to an integer value in the value space. Fantastic! Thank you!
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