[metapost] Original Euler sources

[Laurence Finston]

> I plan to make "hollowed out" bicolor versions and while this works with `glyph', I think it will work better by modifying the MF sources
> and will make it easier to get typesetting with the letters to work.

Well, having looked at the sources I can say I was wrong about this.  I knew Euler had no "meta-ness", but I didn't realize quite how much "no meta-ness" it had, so to speak.  Still, I will leave them in the repository for people who like to read long lists of raw numbers and will use `mfplain.mp' for fontmaking.  I still think it's a good thing for them to be available in CTAN, if only to spare people the trouble of trying to find them.

> Gesendet: Sonntag, 02. Januar 2022 um 22:58 Uhr
> Von: "Laurence Finston" <Laurence.Finston at gmx.de>
> An: "Karl Berry" <karl at freefriends.org>
> Cc: metapost at tug.org
> Betreff: Aw: Re: [metapost] Original Euler sources
>
> I've attached a photo, in case anyone is interested.  The white letters at the top are wax and the reddish-brown sheet is linoleum.
> The version of the font is the unmodified PostScript version of eurb10, Euler Roman Bold.
>
> I plan to make "hollowed out" bicolor versions and while this works with `glyph', I think it will work better by modifying the MF sources and will make it easier to get typesetting with the letters to work.
>
> Again, if anyone is interested, the sources are here:  https://git.savannah.gnu.org/cgit/3dldf.git/tree/src/Outline_Fonts
>
> This is very much still a work in progress, though.
>
> > Gesendet: Sonntag, 02. Januar 2022 um 22:21 Uhr
> > Von: "Karl Berry" <karl at freefriends.org>
> > An: Laurence.Finston at gmx.de
> > Cc: metapost at tug.org
> > Betreff: Re: [metapost] Original Euler sources
> >
> >     Savannah for GNU 3DLDF:
> >     https://git.savannah.gnu.org/cgit/3dldf.git/tree/fonts/source/public/ams/euler
> >
> > Thanks Laurence. Inspired by this, I also made them available under
>
>
> > https://tug.org/historic/, namely (and mirrors, in due course)
> >
> >  rsync://tug.org/historic/fonts/euler/
> >
> > I found two releases readily available, from 1995 and 1991. The 1995
> > version (the last as Metafont, I believe), was actually already in the
> > historic archive, under macros/ams/amsfonts*, but that was somewhat
> > obscure location, so maybe I made a symlink. The ams area also has tfms,
> > but I did not try to copy those.
> >
> > Also, for the record, I feel I should mention that Hermann Zapf drew new
> > versions of many Euler characters in the 2000s, a project with Hans,
> > Taco, and Volker. Hans wrote a short article about it, showing some of
> > the changes: https://tug.org/TUGboat/tb29-2/tb92hagen-euler.pdf
> > They also added
> >
> > Those fonts are available as Type 1's, in the current amsfonts package.
> >
> > Best,
> > Karl
> >