Since `c` there is a result of evaluating `TO_SPECIAL` macros it may be only one
of the following three things:
1. K_SPECIAL
2. K_ZERO (note: not KS_ZERO)
3. negative integer resulting from evaluating TERMCAP2KEY macro.
All variants here are negative and thus fail next !IS_SPECIAL(c) check (negative
is special). If `c` was really NUL it would fall into the `!IS_SPECIAL(c)` block
and use whatever character is third in `<80>{a}{b}` combo. For `<Nul>` it is
X (`<80><ff>X`).
Problem: When in Ex mode and an error is caught by try-catch, Vim still
exits with a non-zero exit code.
Solution: Don't set ex_exitval when inside a try-catch. (partly by Christian
Brabandt)
2b7bc567b9
Problem: Cannot make Vim fail on an internal error.
Solution: Add IEMSG() and IEMSG2(). (Domenique Pelle) Avoid reporting an
internal error without mentioning where.
95f096030e
Signed-off-by: Michael Schupikov <michael@schupikov.de>
This also attempted to fix problem with cancelling input() on error by avoiding
standard error printing facilities (assumed thrown error message is the
problem), but with no luck so far.
Problem: :filter does not work for many commands. Can only get matching
messages.
Solution: Make :filter work for :command, :map, :list, :number and :print.
Make ":filter!" show non-matching lines.
d29459baa6
Problem: Adding pattern to ":oldfiles" is not a generic solution.
Solution: Add the ":filter /pat/ cmd" command modifier. Only works for some
commands right now.
7b668e83d0
It was there only to prove that *now* `len` argument is not used to forbid
putting message into history (i.e. that Neovim behaviour did not change). After
this commit it should be possible to use msg_puts_attr_len with len>=0 to put
message into history should new code need this.
`attr` argument is enough to forbid putting message in history. Also forbid
strings with NUL before `len` just in case (it appears that this does not ever
happen).
Problem: Not all arguments of trunc_string() are tested. Memory access
error when running the message tests.
Solution: Add another test case. (Yegappan Lakshmanan) Make it easy to run
unittests with valgrind. Fix the access error.
b9644433d2
