read-key: rejig some lines for internal clarity

commands/read-key

@@ -221,7 +221,7 @@ function read_key() (
 	}
 
 	# process
-	local item option_timeout='' option_keep_line_buffer_newlines='no'
+	local item option_timeout='' subsequent_timeout='0.0001' option_keep_line_buffer_newlines='no'
 	while test "$#" -ne 0; do
 		item="$1"
 		shift
@@ -240,7 +240,10 @@ function read_key() (
 	if ! is-number -- "$option_timeout"; then
 		option_timeout=600 # ten minutes
 	fi
+
+	# bash v3 compat
 	option_timeout="$(__get_read_decimal_timeout "$option_timeout")"
+	subsequent_timeout="$(__get_read_decimal_timeout "$subsequent_timeout")"
 
 	# =====================================
 	# Action
@@ -275,8 +278,7 @@ function read_key() (
 	}
 	function read_and_flush {
 		# read
-		local status=0 mini_timeout
-		mini_timeout=$(__get_read_decimal_timeout '0.0001') # bash v3 compat
+		local status=0
 		IFS='' read -rsn1 -t "$option_timeout" input || status=$?
 		if test "$status" -eq 0; then
 			add "$input"
@@ -285,7 +287,7 @@ function read_key() (
 				# -r allows backslash key [\] to be kept
 				# -s prevents the input from being echoed
 				# -n1 reads only one character, which is necessary surprisingly to read non-printable characters
-				if ! IFS='' read -rsn1 -t "$mini_timeout" input; then
+				if ! IFS='' read -rsn1 -t "$subsequent_timeout" input; then
 					break
 				fi
 				add "$input"