instead of relying on Scintilla undo actions, use SciTECO undo tokens exclusivelyHEADmaster-fmsbw-cimaster

Previously we were using both Scintilla undo actions and our own undo tokens
and both had to be coordinated via `undo__teco_interface_ssm(SCI_UNDO, 0, 0)`.
This was error prone since we have to predict when an undo action is actually
generated. Furthermore, you had to update SCI_SETUNDOCOLLECTION on all buffers
and the Q-Reg view whenever switching to and from interactive mode.
Also, this probably wasted memory for the doubled undo bookkeeping.
Now, we always set SCI_SETUNDOCOLLECTION(FALSE), even in interactive mode.
teco_undo_view_insert() was introduced to undo text deletions.
While this saves almost no lines of code, it's just a clearer and simpler
architecture.

1 files changed, 6 insertions, 0 deletions

diff --git a/src/interface.h b/src/interface.h
index 9c3d31e..20d9773 100644
--- a/src/interface.h
+++ b/src/interface.h
@@ -286,6 +286,12 @@ teco_interface_get_character(gsize pos, gsize len)
 	return teco_view_get_character(teco_interface_current_view, pos, len);
 }
 
+static inline void
+teco_undo_interface_insert(gsize pos, gsize len)
+{
+	return teco_undo_view_insert(teco_interface_current_view, pos, len);
+}
+
 /*
  * The following functions are here for lack of a better place.
  * They could also be in sciteco.h, but only if declared as non-inline