Scientific Operations



TMG(VI)                      10/21/72                     TMG(VI)



NAME
     tmg - compiler-compiler

SYNOPSIS
     tmg name

DESCRIPTION
     Tmg produces a translator for the language whose parsing and
     translation rules are described in  file  name.t.   The  new
     translator appears in a.out and may be used thus:

     a.out input [ output ]

     Except  in  rare  cases input must be a randomly addressable
     file.  If no output file is specified, the  standard  output
     file is assumed.

FILES
     name.s: assembly language version of name.t
     /usr/lib/tmg: the compiler-compiler
     /usr/lib/tmg[abc], /lib/libs.a: libraries
     alloc.d: scratch file for table storage

SEE ALSO
     A  Manual  for  the  Tmg Compiler-writing Language, internal
     memorandum.

DIAGNOSTICS
     Syntactic errors result in "???" followed by  the  offending
     line.
     Situations such as space overflow with which the Tmg proces-
     sor or a Tmg-produced processor can not cope result in a de-
     scriptive comment and a dump.

AUTHOR
     M. D. McIlroy

BUGS
     Footnote  1  of  Section  9.2 of Tmg Manual is not enforced,
     causing trouble.
     Restrictions (7.) against mixing bundling primitives  should
     be lifted.
     Certain  hidden reserved words exist: gpar, classtab, trans,
     goto, alt, salt.
     Octal digits include 8=10 and 9=11.












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