zenu

git clone git://bebou.netlib.re/zenu
Log | Files | Refs |

commit aa6044a4df77898ae5d556f3e1fa818b184b3c8e
parent 7618449068bc1b07a81a71e84dfda2ebbe73457f
Auterice: Marc Chantreux <mc@unistra.fr>
Date:   Fri, 30 Jun 2023 22:30:38 +0200

zenu.ends_with

it's now possible for a widget to escape the loop

Diffstat:
M
zenu.zsh
 | 
17
+++++++++++++----

1 file changed, 13 insertions(+), 4 deletions(-)
diff --git a/zenu.zsh b/zenu.zsh
@@ -31,18 +31,26 @@ zenu.update() {
 	. $1.script
 }
 
+# TODO: doc
+# ZENU_HOOK_END: a code to execute while leaving the loop
+# ZENU_AGAIN (bool) : run the loop again
+
+zenu.ends_with() {
+	ZENU_HOOK_END="$*"
+	ZENU_AGAIN=false
+}
+
 zenu.loop() {
-	local -a zenu_stack
-	zenu_stack=( main )
+	local zenu_stack=( main )
+	local ZENU_AGAIN=true
 	local zenu_base= zenu_key=
 	while (( $# )) {
 		case "$1"
 		in (from) zenu_stack=($2)              ; shift 2
 		;; (in)   zenu_base=$2                 ; shift 2
-		;; (*)    >&2 echo "not a valid key $1"; return 1
 		esac
 	}
-	while {true} {
+	while {eval $ZENU_AGAIN} {
 		clear
 		case $#zenu_stack
 		in (0) return
@@ -60,5 +68,6 @@ zenu.loop() {
 			. $c.script
 		esac
 	}
+	eval "${ZENU_HOOK_END:-:}"
 }