From d067ebcacd55472f720b2765ec686a69b25c9a90 Mon Sep 17 00:00:00 2001
From: Peter Stephenson <p.w.stephenson@ntlworld.com>
Date: Sun, 7 Dec 2014 16:24:19 +0000
Subject: 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.
---
 Src/Zle/zle_main.c | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

(limited to 'Src/Zle/zle_main.c')

diff --git a/Src/Zle/zle_main.c b/Src/Zle/zle_main.c
index caa052b13..a2f48e13a 100644
--- a/Src/Zle/zle_main.c
+++ b/Src/Zle/zle_main.c
@@ -744,7 +744,7 @@ raw_getbyte(long do_keytmout, char *cptr)
 			}
 			if (errflag) {
 			    /* No sensible way of handling errors here */
-			    errflag = 0;
+			    errflag &= ~ERRFLAG_ERROR;
 			    /*
 			     * Paranoia: don't run the hooks again this
 			     * time.
@@ -882,7 +882,7 @@ getbyte(long do_keytmout, int *timeout)
 		die = 0;
 		if (!errflag && !retflag && !breaks && !exit_pending)
 		    continue;
-		errflag = 0;
+		errflag &= ~ERRFLAG_ERROR;
 		breaks = obreaks;
 		errno = old_errno;
 		return lastchar = EOF;
@@ -1075,7 +1075,7 @@ zlecore(void)
 		DECCS();
 	    handleundo();
 	} else {
-	    errflag = 1;
+	    errflag |= ERRFLAG_ERROR;
 	    break;
 	}
 #ifdef HAVE_POLL
@@ -1233,6 +1233,10 @@ zleread(char **lp, char **rp, int flags, int context, char *init, char *finish)
 
     zleactive = 1;
     resetneeded = 1;
+    /*
+     * Start of the main zle read.
+     * Fully reset error conditions, including user interrupt.
+     */
     errflag = retflag = 0;
     lastcol = -1;
     initmodifier(&zmod);
@@ -1658,7 +1662,7 @@ bin_vared(char *name, char **args, Options ops, UNUSED(int func))
     }
     if (!t || errflag) {
 	/* error in editing */
-	errflag = 0;
+	errflag &= ~ERRFLAG_ERROR;
 	breaks = obreaks;
 	if (t)
 	    zsfree(t);
@@ -1778,7 +1782,7 @@ recursiveedit(UNUSED(char **args))
     zrefresh();
     zlecore();
 
-    locerror = errflag;
+    locerror = errflag ? 1 : 0;
     errflag = done = eofsent = 0;
 
     return locerror;
-- 
cgit 1.4.1