fixed using the command-line replacement register (ESC) in batch mode: was causing assertions when entering interactive mode

Also added a regression test case.

2 files changed, 10 insertions, 2 deletions

diff --git a/src/main.c b/src/main.c
index 1cedb9d..c8ac27b 100644
--- a/src/main.c
+++ b/src/main.c
@@ -518,8 +518,7 @@ main(int argc, char **argv)
 	 * If munged file didn't quit, switch into interactive mode
 	 */
 	/* commandline replacement string register */
-	teco_qreg_table_insert_unique(&teco_qreg_table_globals,
-	                              teco_qreg_plain_new("\e", 1));
+	teco_qreg_table_replace(&teco_qreg_table_globals, teco_qreg_plain_new("\e", 1));
 
 	teco_undo_enabled = TRUE;
 	teco_ring_set_scintilla_undo(TRUE);
diff --git a/tests/testsuite.at b/tests/testsuite.at
index 132684b..b8a7404 100644
--- a/tests/testsuite.at
+++ b/tests/testsuite.at
@@ -536,6 +536,15 @@ TE_CHECK_CMDLINE([[@^Um{:@S/XXX/} :Mm"S(0/0)' Mm"S(0/0)']], 0, ignore, stderr)
 AT_FAIL_IF([$GREP "^Error:" stderr])
 AT_CLEANUP
 
+AT_SETUP([Overwriting builtin registers])
+# Initializes registers in batch mode, which are later replaced during startup
+# of interactive mode.
+# This was causing assertion errors.
+AT_DATA([test.tec], [[23U^[ !]! 23U~
+]])
+AT_CHECK([[$SCITECO --fake-cmdline '' --mung test.tec]], 0, ignore, ignore)
+AT_CLEANUP
+
 AT_BANNER([Known Bugs])
 
 AT_SETUP([Number stack])