{tbin,[rh]ead}pds more robust but...; new parsepds and resolvepdspointer

headpds.pro

- avoid doubling of ^structure loads
- made loop more robust
- cleaned out unused code

parsepds.pro

- fiddled with stack, added peekstack
- added doubleDebug keyword argument
- made unit checking more robust
- added line number
- added quotes and such to help VIM syntax highlighting

resolvepdspointer.pro

- new routine to help with ^STRUCTURE and other pointers

readpds.pro

- added envvar-controlled option to write de-^STRUCTUREd (complete) label

str2num.pro

- clear !ERR

tbinpds.pro

- adjusted end_header calculation so COLUMN OBJECTs before CONTAINER OBJECT parameters will not hide those params
- added debugging via catch
- added unconditional debugging
- this routine is not at all robust, time to work on something new (parsepds.pro).