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From: ccc_ldo@waikato.ac.nz (Lawrence D'Oliveiro, Waikato University)
Newsgroups: comp.lang.postscript
Subject: Re: PostScript vs TrueType?
Message-ID: <1289.26d27708@waikato.ac.nz>
Date: 22 Aug 90 00:14:00 GMT
References: <9607@goofy.Apple.COM>
Organization: University of Waikato, Hamilton, New Zealand
Lines: 24

What sort of support will Level II PostScript have for contextual forms?
As I've tried to point out before, this is important not only for non-Roman
writing systems, but for some Roman fonts as well.

* A string of text shouldn't need to contain different codes to represent
  different contextual forms of the same character. Instead, this should
  be resolved at the time the text is drawn. This keeps things simple for
  the application.

* Is there a Level II PostScript function for drawing a *part* of a
  string *in context*? That is, you give it a string, but indicate that
  you only want a part of it drawn. The reason for passing the whole
  string is so that the drawing code can decide on the correct contextual
  forms to use.
     The reason for only wanting to draw part of the string is interactive
  WYSIWYG editing: this lets you redraw only the part of the text that
  has changed (saves time and avoids flicker), while displaying the
  correct contextual forms at all times.

Lawrence D'Oliveiro                       fone: +64-71-562-889
Computer Services Dept                     fax: +64-71-384-066
University of Waikato            electric mail: ldo@waikato.ac.nz
Hamilton, New Zealand    37^ 47' 26" S, 175^ 19' 7" E, GMT+12:00
My other signature is a Porsche.