Short term goals

rewrite syntax highlighting to be line oriented instead of word oriented. handle first part of line based on regular expressions, then advance and only highlight strings and numbers. handle "&" continuation and multiline strings with """ like C style comments in Qt docs example
add CTRL-q hotkey to log windows so you can exit the entire application (add do you really want to? dialog to this)
add "syntax check" with enabled "-skiprun" flag
need to handle "label" and "jump" commands from within ?
switch processing of input to line based commands or?
switch input file editor to read-only while loop is running

Long term ideas

add feature to LAMMPS (to the LAMMPS class) to store current file name and line number, update while reading/parsing use in error messages add API to library interface to query this info and use it for highlighting in text editor
rewrite entire application to either use QtCreator for everything or just build the App and its layout manually
port to Qt6
also a rewrite should establish consistent naming conventions. now we have a mix of LAMMPS style, Qt style, and others.
add option to attach a debugger to the running program (highly non-portable, need customization support in preferences)
write a "wizard" dialog that can be used for beginners to create an input file template for a few typical use scenarios
support single stepping, i.e. process input line by line (need to detect continuation chars!) with highlighting active line(s)
have command text input file in/above status bar where individual commands can be tested. have insert button to copy line into file at the current point
support text completion as done with lammps-shell
add a "python" mode, where instead of launching LAMMPS, python is loaded where the LAMMPS python module is made available.
support multiple tabs and multiple LAMMPS instances?