Why has inline-space length-specs?

[Peter Nilsson <pnidv96@xxxxxxxxxxxxxx>]

Hello DSSSLers,

while designing/implementing my DSSSL formatter, I came to a question
about inline spaces. The standard says (12.5.4.2):
(inline-space length-spec #!key min: max:)

(This procedure is used to construct an inline-space object.) All three
arguments are length-specs (i.e. may contain for instance (display-size)).
My concern is: why aren't the components of an inline-space just lengths?
The only flow objects that take inline-spaces as characteristic values
I've found are inline flow objects. But the display-size procedure may
only be called in the evaluation of a characteristic for a *displayed*
flow object. So isn't it useless to have length-specs here?

Regards,
/Peter Nilsson

--
'(?P . (?e . (?t . (?e . (?r)))))


 DSSSList info and archive:  http://www.mulberrytech.com/dsssl/dssslist