
An attempt at distilling some mainlines from TODO.

-  better structuring and sectioning of source code.
   parse/segment/digest include most of each other,
   due e.g. to seg_check_ok and yamFormatted1.

-  Env well-formedness should pbb best be checked at output time,
   not during processing time. It should be possible (?) to make
   contrived examples failing during processing time, producing
   correct output nevertheless.

-  implement append modes \writeto{a}{name}, \write{a}{name}{filter}{stuff}.
   For writeto also make commandline switch that makes \writeto{name}
   append by default.

-  better hashing of file pointers (right now by name,
   so foo and ./foo are different).

-  better special/level design.

-  the implementation of f#2 f#3 and fv#2 is very straightforward
   from a numerical point of view.

-  (ever) better separate character munging code.

-  fix inspect#4 implementation and interface.
   use different escape character in the regex sublanguage.

-  fix long routines alltogether.

-  reconsider tracing implementation.

-  who gets to err and why (given all the unwinding)?

-  clearer grip on device whitespace munging and special rules
   for the extreme corner cases.


