33876: etc.: Separate errors and keyboards interrupts

Combination of 12 commits from interrupt_abort branch.

Basic strategy is to introduce bits to errflag and to set and
reset them separately.

Remove interrupt status on return to main keymap.

Turn off ERRFLAG_INT for always block.

Restore bit thereafter: we probably need a new variable in order
to allow user interrupts to be reset in the always block.

Add TRY_BLOCK_INTERRUPT

This works the same as TRY_BLOCK_ERROR, but for a SIGINT, too.

Ensure propagation of SIGINT from exited job.

If received by foreground job, shell uses ERRFLAG_INT, not
ERRFLAG_ERROR, to set the new state.

Reset errflag before precmd()

Add always block in _main_completion to fix ZLS_COLORS

Ensures we get the right state of $ZLS_COLORS at the end of _main_complete
even if there's an interrupt.  However, the "right state" is a bit messy
as it depends on styles.

1 files changed, 10 insertions, 0 deletions

diff --git a/Src/Zle/zle_keymap.c b/Src/Zle/zle_keymap.c
index 30d25ebaa..48f210c7e 100644
--- a/Src/Zle/zle_keymap.c
+++ b/Src/Zle/zle_keymap.c
@@ -504,6 +504,16 @@ mod_export void
 selectlocalmap(Keymap m)
 {
     localkeymap = m;
+    if (!m)
+    {
+	/*
+	 * No local keymap; so we are returning to the global map.  If
+	 * the user ^Ced in the local map, they probably just want to go
+	 * back to normal editing.  So remove the interrupt error
+	 * status.
+	 */
+	errflag &= ~ERRFLAG_INT;
+    }
 }
 
 /* Reopen the currently selected keymap, in case it got deleted.  This *