Problem: Can execute shell commands in rvim through interfaces.
Solution: Disable using interfaces in restricted mode. Allow for writing
file with writefile(), histadd() and a few others.
8c62a08faf
Problem: A plugin cannot easily expand a command like done internally.
Solution: Add the expandcmd() function. (Yegappan Lakshmanan, closesvim/vim#4514)
80dad48c50
Problem: :echomsg and :echoerr do not handle List and Dict like :echo does.
(Daniel Hahler)
Solution: Be more tolerant about the expression result type.
461a7fcfce
Add lua functional tests for :echo,:echon,:echomsg,:echoerr
because nvim did not port "test_" functions from Vim
that modify internal state.
Testing :echoerr via try/catch is sufficient.
Problem: MS-Windows: Cannot interrupt gdb when program is running.
Solution: Add debugbreak() and use it in the terminal debugger.
Respect 'modified' in a prompt buffer.
4551c0a9fc