Ken, The next time I'm at the Mountain View CHM, I'll try to ask. However, assuming it was an overstrike of an X and an I, then where does the "Eris"-like glyph come from? Was there ever an IBM font with a double-semicircular X like )( ?
On Tue, Sep 26, 2017 at 8:45 AM, Ken Whistler <kenwhist...@att.net> wrote: > Leo, > > Yeah, I know. My point was that by examining the physical typewriter keys > (the striking head on the typebar, not the images on the keypads), one > could see what could be generated *by* overstriking. I think Philippe's > suggestion that it was simply an overstrike of "X" with an "I" is probably > the simplest explanation for the actual operation. And the typeset manuals > just grabbed some type that looked similar. Note that the typewriters in > question didn't have a vertical bar or backslash, apparently. > > But adding an annotation for similar-looking symbols that could be used > for this is, I agree, probably better than looking for a proposal to encode > some new symbol for this oddball construction. > > If it really is an overstrike, then technically, it could probably also be > represented as the sequence <0058, 20D2>, just to represent the data. > > --Ken > > On 9/25/2017 11:34 PM, Leo Broukhis wrote: > > If it was implemented as an overprint, either )^H|^H( or \^H|^H/ and was > intended to signify an invalid character > (for example, in the text part of core dumps, where a period is used by > hexdump -C), then there would not be a physical key to generate it. > > >
