util, decode, vi: fix leak variables

- util: esc from ble/util/keyseq2chars
- util: a, b from ble/string#escape-for-bash-specialchars
- decode: qseq1, nseq1 from ble/decode/cmap/.generate-binder-template
- vi: ret from ble/keymap:vi/update-mode-indicator

lib/init-term.sh

@@ -34,7 +34,6 @@ function ble/init:term/define-cap.2 {
 }
 
 _ble_term_sgr_term2ansi=()
-ble/init:term/register-varname _ble_term_sgr_term2ansi
 _ble_term_rex_sgr=$'\e''\[([0-9;:]+)m'
 function ble/init:term/define-sgr-param {
   local name=$1 seq=$2 ansi=$3
@@ -60,6 +59,7 @@ function ble/init:term/define-sgr-param {
 
 function ble/init:term/initialize {
   local -a varnames=()
+  ble/init:term/register-varname _ble_term_sgr_term2ansi
 
   # xenl (end of line behavior)
   _ble_term_xenl=1

src/decode.sh

@@ -2042,8 +2042,8 @@ function ble-decode-bind/cmap/.generate-binder-template {
   for ccode in "${ccodes[@]}"; do
     local ret
     ble-decode-bind/c2dqs "$ccode"
-    qseq1=$qseq$ret
-    nseq1="$nseq $ccode"
+    local qseq1=$qseq$ret
+    local nseq1="$nseq $ccode"
 
     builtin eval "local ent=\${_ble_decode_cmap_$tseq[ccode]}"
     if [[ ${ent%_} ]]; then

src/util.sh

@@ -782,6 +782,7 @@ function ble/string#escape-for-bash-specialchars {
 
   # 上の処理で extglob の ( も quote されてしまうので G の時には戻す。
   if [[ $2 == *G* ]] && shopt -q extglob; then
+    local a b
     a='!\(' b='!(' ret=${ret//"$a"/"$b"}
     a='@\(' b='@(' ret=${ret//"$a"/"$b"}
     a='?\(' b='?(' ret=${ret//"$a"/"$b"}
@@ -3831,7 +3832,7 @@ function ble/util/keyseq2chars {
   local mods=
   local rex='^([^\]+)|^\\([CM]-|[0-7]{1,3}|x[0-9a-fA-F]{1,2}|.)?'
   while [[ $keyseq ]]; do
-    local text=${keyseq::1}
+    local text=${keyseq::1} esc
     [[ $keyseq =~ $rex ]] &&
       text=${BASH_REMATCH[1]} esc=${BASH_REMATCH[2]}