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- I would like to include non-text data (e.g. bitmaps, sound)
- in my hyperdocuments.
-
- One way to do this would be:
-
- 1) extend HTML to allow for such data, e.g. a tag like
- <BITMAP height=100 width=100 encoding=FAXG4>
-
- (I think the WWW protocols would require that the data be uuencoded,
- since I don't think they will allow 8bit data)
-
- 2) extend Viola (my WWW browser of choice) to recognize
- this tag and do the right thing with it, i.e. uudecode it then
- start a display program (or place the bitmap into the
- document)
-
- A related generalization would be if the browsing program were able to
- choose among a set of alternative display programs based on the "type"
- of the document linked to. In this case, I could have an anchor
- that pointed to a bitmap file in addition to (or instead of) placing
- bitmaps within HTML files.
-
- This sort of thing is possible in both WAIS and MetaMail. In document
- has a type known to the WAIS server, the client inspects this type and
- selects a display program according to the values in the Xwais.filters
- X resource; In MetaMail each piece of mail is labeled with an explicit
- type; MetaMail consults the mailcap file to determine how to display
- each type.
-
- I see that anchors in WWW can have a TYPE attibute, but I can't tell
- whether this is the type of the link or of the thing linked to. If
- the former, then I see no easy way to do it in WWW, short of adding
- the facility to Viola to decide the document type by inspecting it
- (e.g. looking for magic header bits which at least some data formats
- support.)
-
- I would be grateful for your comments on this matter.
-
- best wishes
-
-