stub prefilter for dot-cmd syntax; refactor
receive and process dot-commands
clean cruft; .search now supports |grep
modify the input splitter to interpret "ed filename.txt:<col>:" as completed input
potentially trigger C_FILE_INPUT on syntaxerror
refactor
smarter dwim for editable file input
flakes; refactor
dwim to support http:// input lines
switch to using voluptuous validation everywhere