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    Length: 1339 (0x53b)
    Types: TextFile
    Notes: UNIX file
    Names: »readme«

└─⟦f27320a65⟧ Bits:30001972 Commodore 900 hard disk image with partial source code
    └─⟦f4b8d8c84⟧ UNIX V7 Filesystem
        └─ ⟦this⟧ »cmd/bc/readme« 

TextFile

Write library:
	sine, cosine, exponential, log, arctangent, Bessel functions

Ask Rico and Johann if there is any way for interp and yyparse to
work as coroutines rather than subroutines so that the interp stack
and the yyparse stack can share memory.

gerror should cause the parser to enter the error state.

Eventually the asserts and bogus defaults should be removed, but
no need to do so until we have faith.

Should bc catch interrupts.

In the event of a syntax error (or any error in a definition for
that matter) someone should do a remloc on the parameters and autos.
As it is now, you can never use those variables as parameters again,
and whats more, if you refer to their global equivalents while in
a function, it uses the aborted local value instead.
One solution (gross) is to simply walk the dictionary on errors and
remove all local stuff.  Another is to have the error production
notice that a definition is going on because retfrom is non-null

Note that the output routine gets totally confused as to what column it is
on with tabs.  It should do it right.

Note that currently a quit in a file simply goes to the next file.
This is certainly wrong.


Note that currently, literal number space is never recovered.  The result
is that if you give bc a large file with expressions to evaluate, it
will run out of space.