http://www.w3.org/TR/2000/CR-SVG-20001102/filters.html#feColorMatrix I believe that the definition of values in feColorMatrix has a contradictary definition. The spec states that the type of values is "list of Numbers", yet for the case of type=saturate, the spec states the values can be a number from 0-1 or an optional percentage value (e.g. 50%). In chapter 4 (Basic Data Types) list of xxx is defined as a list of type xxx only, not a variation of types. Therefore, it should be safe to assume that if an attribute is defined as a list of xxx, only xxx types will appear. The inconsistency with feColorMatrix values causes some difficulty in parsers set up to parse values bases on a single basic data type. In this case, the parser has to be designed to allow a change in the definition of the attribute depending on the value of another attribute. I know that in the past opacity attributes followed the same inconsistency, but I believe in updated specs this has been changed to only allow numbers in the range 0-1. (Correct?) Although I cannot recall off the top of my head, I believe there are other cases where the same is true. Eliminating this special case would be a good start. (I am not including animate from,to,by,values in this statement; they are completely flexible types by design.) Sincerely, Kirk JensenReceived on Monday, 6 November 2000 12:06:56 GMT
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