On this directory I've copied typical source files from the early days
of TeX and METAFONT. All programs were written in the SAIL language.

tex78 (the way it worked when I wrote the first TeX user manual)
  TEXHDR.SAI 1978.08.07  header file included by independently compiled modules
  TEXSYN.SAI 1978.08.07  syntax module
  TEXSEM.SAI 1978.08.07  semantics module
  TEXOUT.SAI 1978.08.01  output module
  TEXEXT.SAI 1978.03.10  extension module
  TEXSYS.SAI 1978.08.05  main program
  TEXPRE.SAI 1978.08.07  preprocessor to make hyphenation tables, basic macros

tex82 (the final forms of those programs for TeX78)
  TEXHDR.SAI 1982.07.32
  TEXSYN.SAI 1982.04.03
  TEXSEM.SAI 1981.08.09
  TEXOUT.SAI 1980.06.17
  TEXEXT.SAI 1981.03.05
  TEXSYS.SAI 1982.05.20
  TEXPRE.SAI 1982.04.12

mf79 (from the time of the first METAFONT manual)
  ROMAN.SAI 1978.05.27  example of how I made fonts before METAFONT
  MFHDR.SAI 1979.10.15  header file included by independently compiled modules
  MFNTRP.SAI 1979.10.15 interpreter module
  MFRAST.SAI 1979.10.18 semantics module
  MFOUT.SAI 1979.10.21  output module
  MFSYS.SAI 1979.10.15  main program
  MFPRE.SAI 1979.10.15  preprocessor to make basic macros

mf84 (the final forms of those programs for MF79)
  MFHDR.SAI 1983.11.12
  MFNTRP.SAI 1982.04.18
  MFRAST.SAI 1983.11.28
  MFOUT.SAI 1983.11.09
  MFSYS.SAI 1982.08.03
  MFPRE.SAI 1982.04.06


