From 97d4bdbc7e86e6e8da0d4a059b118ffab289d3a9 Mon Sep 17 00:00:00 2001
From: Peter Stephenson
Date: Thu, 24 Aug 2017 19:46:20 +0100
Subject: 41590 modified as 41595: make ERR_RETURN more logical.
It now operates separately at each function depth.
To keep ERR_EXIT global, make the noerrexit variable usd bit flags.
Extend tests.
---
README | 13 +++++++++++++
1 file changed, 13 insertions(+)
(limited to 'README')
diff --git a/README b/README
index f711b1738..d59ddfebb 100644
--- a/README
+++ b/README
@@ -81,6 +81,19 @@ against user defined widgets inadvertently reading from the tty device,
and addresses the antisocial behaviour of running a command with its
stdin closed.
+5) [New between 5.4.1 and 5.4.2] In previous versions of the shell, the
+following code:
+
+ () { setopt err_return; false; echo 'oh no' } && true
+
+printed "oh no", as the ERR_RETURN behaviour was suppressed when
+a function was executed on the left hand side of an "&&" list. This was
+undocumented and inconvenient as it is generally more useful to consider
+execution within a function in isolation from its environment. The shell
+now returns from the function on executing `false'. (This is general
+to all functions; an anonymous function is shown here for compactness.)
+
+
Incompatibilities between 5.0.8 and 5.3
----------------------------------------
--
cgit 1.4.1