One for the obsolete file format anoraks—DEK doesn't seem to make this clear anywhere in the gftodvi source code—I think that GF specials apply to the character data that follows them and that anything between the last eoc and the post opcode would be global, but it appears that things like a slantfont special are attached to the first character in the font (interestingly, I could only find one Metafont source in my texmf tree that actually specified a slantfont). DEK is clear that MF never writes xxx opcodes inside a character, so I'm curious about the extent to which there are conventions around MF specials.

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