From 711cedbed82a62e1e7140c8d743cb9179280029a Mon Sep 17 00:00:00 2001
From: Koichi Murase <myoga.murase@gmail.com>
Date: Tue, 17 Dec 2019 02:14:48 +0900
Subject: [PATCH] follow bash syntactic changes on arithmentic command

---
 src/canvas.sh | 4 ++--
 src/color.sh  | 2 +-
 src/decode.sh | 4 ++--
 src/edit.sh   | 4 ++--
 4 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/src/canvas.sh b/src/canvas.sh
index 0674b7e8..69bd4435 100644
--- a/src/canvas.sh
+++ b/src/canvas.sh
@@ -210,7 +210,7 @@ function ble/util/c2w+emacs {
     return
   fi
 
-  (('
+  ((
     0x3100<=code&&code<0xA4D0||0xAC00<=code&&code<0xD7A4?(
       ret=2
     ):(0x2000<=code&&code<0x2700?(
@@ -241,7 +241,7 @@ function ble/util/c2w+emacs {
         ret=0x01<=al&&al<0x61||0xE0<=al&&al<=0xE7?2:1
       ):(ret=1))))))))))
     ))
-  '))
+  ))
 
   [[ $tIndex ]] || return 0
 
diff --git a/src/color.sh b/src/color.sh
index 5f3be06b..1bfba19d 100644
--- a/src/color.sh
+++ b/src/color.sh
@@ -272,7 +272,7 @@ function ble/color/.color2sgr-impl {
   local ccode=$1 prefix=$2 # 3 for fg, 4 for bg
   if ((ccode<0)); then
     ret=${prefix}9
-  elif ((ccode<\(_ble_term_colors<16?_ble_term_colors:16\))); then
+  elif ((ccode<16&&ccode<_ble_term_colors)); then
     if ((prefix==4)); then
       ret=${_ble_term_sgr_ab[ccode]}
     else
diff --git a/src/decode.sh b/src/decode.sh
index 9c21a231..f20919f6 100644
--- a/src/decode.sh
+++ b/src/decode.sh
@@ -2847,7 +2847,7 @@ function ble/encoding:UTF-8/decode {
   local mode=$_ble_decode_byte__utf_8__mode
   local byte=$1
   local cha0= char=
-  (('
+  ((
     byte&=0xFF,
     (mode!=0&&(byte&0xC0)!=0x80)&&(
       cha0=_ble_decode_Erro|code,mode=0
@@ -2886,7 +2886,7 @@ function ble/encoding:UTF-8/decode {
         )
       )
     )
-  '))
+  ))
 
   _ble_decode_byte__utf_8__code=$code
   _ble_decode_byte__utf_8__mode=$mode
diff --git a/src/edit.sh b/src/edit.sh
index 2f56a2a3..f1baa328 100644
--- a/src/edit.sh
+++ b/src/edit.sh
@@ -2250,10 +2250,10 @@ function ble/widget/.insert-string {
 
   local dx=${#ins}
   ble-edit/content/replace "$_ble_edit_ind" "$_ble_edit_ind" "$ins"
-  (('
+  ((
     _ble_edit_mark>_ble_edit_ind&&(_ble_edit_mark+=dx),
     _ble_edit_ind+=dx
-  '))
+  ))
   _ble_edit_mark_active=
 }