TMG (I) 10/21/72 TMG (I)





TMG (I)                     10/21/72                      TMG (I)





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 ad-

                dressable file.  If no output file is specified,

                the standard output file is assumed.



FILES           /sys/tmg/tmgl.o -- the compiler-compiler

                /sys/tmg[abc] -- libraries

                alloc.d -- table storage



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

                MM-72-1271-8.



DIAGNOSTICS     Syntactic errors result in "???" followed by the

                offending line.

                Situations such as space overflow with which the

                Tmg processor or a Tmg-produced processor can not

                cope result in a descriptive comment and a dump.



BUGS            9.2 footnote 1 is not enforced, causing trouble.

                Restrictions (7.) against mixing bundling primi-

                tives should be lifted.

                Certain hidden reserved words exist: gpar,

                classtab, trans.

                Octal digits include 8=10 and 9=11.
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