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- This library provides for reading and writing of TeX font metric (TFM)
- files. Only a single file may be read or written at a time.
-
- None of the code that processes the TFM commands actually explains what
- the precise definition of those commands are. For that, you should look
- at the definition of the TFM format in Metafont: The Program, by Don
- Knuth, chapter 46. It is also in the TeXware program tftopl,
- TeX: The Program, and other places.
-
- The header file is ../include/tfm.h. It explains the basics of how to
- use these routines. The source files in this directory do not repeat
- that explanation.
-
- TFM format was extended in 1990 to allow for complicated ligatures.
- We do not recognize all the distinctions; all ligatures are simply
- collapsed into the pre-1990 form, character A followed by character B
- leads to character C.
-