[Q] TFM files headers

[Didier Verna]

Peter Flynn wrote:

> I think details of the file formats is in Knuth's TeX - The Program,
> but if I am wrong I am sure someone has the correct information.

Tomas Rokicki wrote:

> https://en.wikipedia.org/wiki/TeX_font_metric
>
> which has the appropriate reference to tftopl as well as being a
> pretty easy read itself.

Taylor, P wrote:

> I followed the link and found therein a further link to a TUGboat
> article by David Fuchs


  I know all these sources of information. Unfortunately, they don't
  help. They only provide a description of the Xerox PARC header, but
  there's no guarantee that a tfm file will actually use it. For
  example, I found at least one tfm file (from Adobe apparently) that
  seems to also seems to contain a couple of information strings[1], but
  contrary to a PARC header, the strings are not padded with 0s.


Footnotes: 
[1]  I figured that out by reverse-engineering the tfm file.

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