menu (menu-style:desc): fix not working "bleopt menu_desc_multicolumn…

…_width="

docs/ChangeLog.md

@@ -80,6 +80,7 @@
   - blerc: fix the name of the option `bleopt canvas_winch_action` (reported by Knusper) b1be640
 - menu (menu-style:desc): improve descriptions (motivated by Shahabaz-Bagwan) `#D1685` 4de1b45
 - menu (menu-style:desc): support multicolumns (motivated by Shahabaz-Bagwan) `#D1686` 231dc39
+  - menu (menu-style:desc): fix not working `bleopt menu_desc_multicolumn_width=` `#D1727` 0000000
 - term: let <kbd>DECSCUSR</kbd> pass through terminal multiplexers (motivated by cmplstofB) `#D1697` a3349e4
 - complete: requote for more compact representations on full completions `#D1700` a1859b6
 - complete: improve support for `declare` and `[[ ... ]]` `#D1701` da38404

lib/core-complete.sh

@@ -388,9 +388,9 @@ function ble/complete/menu-style:desc/construct-page {
   ble/color/face2sgr-ansi syntax_delimiter; local desc_sgrt=$ret
 
   local ncolumn=1 nline=$lines
+  local nrest_item=$((${#menu_items[@]}-begin))
   if [[ $bleopt_menu_desc_multicolumn_width ]]; then
     ncolumn=$((cols/bleopt_menu_desc_multicolumn_width))
-    local nrest_item=$((${#menu_items[@]}-begin))
     if ((ncolumn<1)); then
       ncolumn=1
     elif ((ncolumn>nrest_item)); then

note.txt

@@ -1675,6 +1675,11 @@ bash_tips
     ToDo
 -------------------------------------------------------------------------------
 
+2022-01-08
+
+  * mandb: echo のオプションの抽出 (help echo) がおかしい at fc35 vm
+    chatoyancy では問題は発生していない
+
 2021-12-22
 
   * ディレクトリ固有の local commands & aliases を可能にする?
@@ -5792,6 +5797,12 @@ bash_tips
 
 2022-01-08
 
+  * complete (menu-style:desc): fix not working "bleopt menu_desc_multicolumn_width=" [#D1727]
+
+    menu_desc_multicolumn_width= として multicolumn を無効化しようとするとゼロ
+    除算のエラーになる。定義していない変数を誤って参照して ncolumn=0 になってい
+    た。修正した。
+
   * decode: bind の古い形式が使えなくなっている (reported by returntrip) [#D1726]
     https://github.com/akinomyoga/ble.sh/issues/165