Re: LSR eyeglasses snippet

[Phil Holmes]

----- Original Message ----- 
From: "David Kastrup" <address@hidden>
To: "Phil Holmes" <address@hidden>
Cc: <address@hidden>
Sent: Tuesday, August 11, 2015 2:39 PM
Subject: Re: LSR eyeglasses snippet


> Phil Holmes <address@hidden> writes:
>
> > I don't understand why this snippet is present: can anyone explain?
> >
> > http://lsr.di.unimi.it/LSR/Item?id=982
>
> It was implemented in LilyPond's core in 2.13.0 with
>
> commit 243b15925ff3ef8b0384ffd0a6ce6664ad19da99
> Author: Reinhold Kainhofer <address@hidden>
> Date:   Fri Jan 30 21:30:24 2009 +0100
>
>    Implement \eyeglasses as markup command
>
>    -) implement \eyeglasses as markup command, using the postscript stored
>       in the eyeglassesps variable
>    -) Use this markup command in musicxml2ly, too
>    -) Add regtest for \eyeglasses (in a \markup and as a markup attached 
> to
>       a note)
>    -) Remove the eyeglasses example from the postscript command and
>       replace it by two rings (the stereo symbol) written in postscript
>
> and presumably the snippet predates this?
>
> --
> David Kastrup


No - it postdates it considerably.  It would seem that it re-implements the 
\eyeglasses command, but with absolute rather than relative co-ordinates.  I 
don't understand why this might be beneficial.

--
Phil Holmes