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, 2 insertions, 2 deletions

diff --git a/src/spawn.cpp b/src/spawn.cpp
index b5d64e9..a6ca4e8 100644
--- a/src/spawn.cpp
+++ b/src/spawn.cpp
@@ -482,10 +482,10 @@ gerror:
  * The register <q> is defined if it does not already exist.
  */
 State *
-StateEGCommand::got_register(QRegister &reg)
+StateEGCommand::got_register(QRegister *reg)
 {
 	BEGIN_EXEC(&States::executecommand);
-	undo.push_var(register_argument) = &reg;
+	undo.push_var(register_argument) = reg;
 	return &States::executecommand;
 }