Subject: Re: DSSSL Design Question From: Vivek Agrawala <vivek@xxxxxxxxxxxxxxx> Date: Tue, 24 Jun 1997 11:05:35 -0400 |
James Clark wrote: > > > What are the advantages of "First Class Modes" over the > > "Not For Formatter Characteristics" ?? > > You can only use inherited-c inside the specification of a characteristic. .... > On the other hand there's no such restriction with first class modes. Ok, I am convinced. Can we also define first-class modes at the top level, just like other processing modes, but with parameters? The following is based on James' earlier example: (first-class-mode mode-fff (x y) (element BAR (if x (make simple-page-sequence) (make scroll))) (element BAZ (literal y)) ) (element FOO (let ((x (compute-some-info-about-foo)) (y (compute-some-other-info-about-foo)) ) (with-first-class-mode mode-fff (x y) (process-children)) )) -- Vivek Agrawala, Ph.D. Siemens Corporate Research, Inc. email: vivek@xxxxxxxxxxxxxxx DSSSList info and archive: http://www.mulberrytech.com/dsssl/dssslist
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