MicroStateMachine::input() returns whether a result was set now

 * this means that QRegSpecMachine::input() no longer has to return
   a dummy QRegister in parse-only mode.
   This saves an unnecessary QRegister table lookup and speeds up
   parsing.
 * QRegSpecMachine can now be easily extended to behave differently
   when returning a Q-Register, e.g. simply returning NULL if a register
   does not exist, or returning a register by prefix.
   This is important for some planned commands.
 * StateExpectQReg::got_register() now gets a QRegister *.
   It can theoretically be NULL - still we don't have to check
   for NULL in most cases since NULL is only passed in parse-only mode.

1 files changed, 3 insertions, 3 deletions

diff --git a/src/cmdline.cpp b/src/cmdline.cpp
index 06cb76e..1a3447f 100644
--- a/src/cmdline.cpp
+++ b/src/cmdline.cpp
@@ -815,12 +815,12 @@ symbol_complete(SymbolList &list, const gchar *symbol, gchar completed)
  * Q-Register <q>.
  */
 State *
-StateSaveCmdline::got_register(QRegister &reg)
+StateSaveCmdline::got_register(QRegister *reg)
 {
 	BEGIN_EXEC(&States::start);
 
-	reg.undo_set_string();
-	reg.set_string(last_cmdline.str, last_cmdline.len);
+	reg->undo_set_string();
+	reg->set_string(last_cmdline.str, last_cmdline.len);
 
 	return &States::start;
 }