zsh: test file before editing in whed()

.config/zsh/configs/1-functions

@@ -82,3 +82,7 @@ function togglefg () {
     zle accept-line -w
 }
 zle -N togglefg
+
+function whed() {
+    [ -e "$1" ] && $EDITOR $(which "$1")
+}

.config/zsh/configs/aliases

@@ -41,7 +41,6 @@ alias \
 # Quasi functions
 alias \
     xgetkeys="xev | sed -ne '/^KeyPress/,/^$/p'" \
-    whed='() { $EDITOR $(which "$1") }' \
     xpick="xprop | awk '     
         /^WM_CLASS/{sub(/.* =/, \"instance:\"); sub(/,/, \"\nclass:\"); print}
         /^WM_NAME/{sub(/.* =/, \"title:\"); print}'"