Xerces wrote: > > Hi: > > The PI expression is written in the following manner > (ref. http://www.w3.org/TR/REC-xml ) > > PI ::= '<?' PITarget (S (Char* - (Char* '?>' Char*)))? '?>' > PITarget ::= Name - (('X' | 'x') ('M' | 'm') ('L' | 'l')) > > My query is what does the symbol '-' imply in the above expressions ? > > Any pointers in this regard will be appreciated. > > Thanks > Tom. > > __________________________________________________ > Do You Yahoo!? > LAUNCH - Your Yahoo! Music Experience > http://launch.yahoo.com > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED]
... Minus i.e. "the set of tokens on the left" minus "the set of tokens on the right. You can see the concept most easily with the PITarget grammar rule you give, as 'xml' in any shape or form isn't allowed as a Name. The first rule is saying that you're not allowed '?>' in the tokens to the right of a PITarget. Bill. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
