Commits on Feb 18, 2019

1. Fix MacVim Ctrl-C handling in Normal and Command-Line modes …

   Vim has a "ctrl_c_interrupts" mode that gets turned on in misc modes
   (e.g. Normal / Command-Line mode) when <C-C> is not mapped. In this
   mode, Ctrl-C has special behavior and is hard-coded (i.e. not
   remappable).
   
   There is an old bug in how MacVim handles Ctrl-C under this mode. It's
   trying to be smart and aggressively clears the input queue (even
   non-text-related ones) without adding anything to the input queue.
   Previously it kind of worked due to a coincidence in how Vim's GUI
   handled input logic, but it was fragile. The recent Vim refactor that
   changed Vim GUI's input handling broke this.
   
   Instead, don't do any of these smart input queue clearing and just do
   what Vim GUI code in other platforms does and call `trash_input_buf()`,
   set `set_int`, and then add the Ctrl-C to the input queue. MacVim still
   has `Cmd-.` for an aggressive interrupt in case Vim is hung (which
   shouldn't happen to begin with).
   
   Fix macvim-dev#846

   

   ychin committed Feb 18, 2019
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