util: test the UTF-8 support of the current LC_CTYPE

ble.pp

@@ -1475,15 +1475,18 @@ function ble/base/is-msys1 {
   [[ $OSTYPE == msys && ! $cr ]]
 }
 
-_ble_base_is_wsl_status=
 function ble/base/is-wsl {
-  [[ $_ble_base_is_wsl_status ]] && return "$_ble_base_is_wsl_status"
-  _ble_base_is_wsl_status=1
-  [[ -d /usr/lib/wsl/lib && -r /proc/version ]] || return 1
   local kernel_version
-  ble/bash/read kernel_version < /proc/version || return 1
-  [[ $kernel_version == *-microsoft-* ]] || return 1
-  _ble_base_is_wsl_status=0
+  if [[ -d /usr/lib/wsl/lib && -r /proc/version ]] &&
+       ble/bash/read kernel_version < /proc/version &&
+       [[ $kernel_version == *-microsoft-* ]]
+  then
+    function ble/base/is-wsl { return 0; }
+    return 0
+  else
+    function ble/base/is-wsl { return 1; }
+    return 1
+  fi
 }
 
 function ble/util/mkd {
@@ -1734,11 +1737,9 @@ function ble/base/initialize-runtime-directory/.xdg {
     [[ -d $runtime_dir && -O $runtime_dir ]] || return 1
   fi
 
-  # Note: Some versions of WSL around 2023-09 seem to have an issue in the
+  # Note: Some versions of WSL around 2023-09 seem to have an issue with the
   # permission of /run/user/*, so we avoid to use them in WSL.
-  [[ $runtime_dir == /run/user/* ]] &&
-    ble/base/is-wsl &&
-    return 1
+  [[ $runtime_dir == /run/user/* ]] && ble/base/is-wsl && return 1
 
   if ! [[ -r $runtime_dir && -w $runtime_dir && -x $runtime_dir ]]; then
     [[ $runtime_dir == "$XDG_RUNTIME_DIR" ]] &&
@@ -2612,6 +2613,7 @@ function ble-attach {
   #   terminal state and send requests.  We then calculate the first prompt,
   #   which takes about 50ms, while waiting for the responses from the
   #   terminal.
+  ble/util/notify-broken-locale
   ble/term/initialize     # 0.4ms
   ble/term/attach noflush # 2.5ms (起動時のずれ防止の為 stty -echo は早期に)
   ble/canvas/attach       # 1.8ms (requests for char_width_mode=auto)

docs/ChangeLog.md

@@ -271,6 +271,7 @@
 - util (`ble/util/buffer.flush`): use <kbd>DECSET(2026)</kbd> in terminals with the support `#D2226` c3df08be
 - main: refactor initialization sequence `#D2231` cc9d7f39
 - util (`ble/util/is-stdin-ready`): check `$_ble_util_fd_tui_stdin` by default `#D2254` 29c00fd8
+- decode (`ble-decode-key/bind`): reference the argument to check the widget name (contributed by musou1500) `#D2279` xxxxxxxx
 
 <!---------------------------------------------------------------------------->
 # ble-0.4.0-devel3
@@ -705,6 +706,7 @@
   - util (`ble/string#split`): optimize `#D1826` 7bb10a7
   - global: avoid passing arbitrary strings through `awk -v var=value` `#D1827` 82232de
   - edit: properly set `LINENO` for `PS1`, `PROMPT_COMMAND`, and `DEBUG` `#D1830` 4d24f84
+- complete: generate command names in background with slow WSL2 `PATH`s (contributed by musou1500) `#D2280` xxxxxxxx
 
 ## Compatibility
 
@@ -783,6 +785,7 @@
 - syntax: suppress brace expansions in designated array initialization in Bash 5.3 `#D1989` 1e7b884
 - progcomp: work around slow `nix` completion `#D1997` 2c1aacf
 - complete: suppress error messages from `_adb` (reported by mozirilla213) `#D2005` f2aa32b0
+- util: test the UTF-8 support of the current `LC_CTYPE` `#D2281` xxxxxxx
 
 ## Test
 

lib/core-complete.sh

@@ -2563,6 +2563,10 @@ function ble/complete/source:command/.print-command {
       shopt -q no_empty_cmd_completion && return 0
       slow_compgen=1
     elif [[ :$PATH: == *:/mnt/*:* ]] && ble/base/is-wsl; then
+      # Note #D2280: Since the upstream WSL2 doesn't seem to be going to fix
+      # the slow filesystem issue with /mnt/*, we decided to add a workaround.
+      # https://github.com/akinomyoga/ble.sh/issues/96
+      # https://github.com/akinomyoga/ble.sh/pull/504
       slow_compgen=1
     elif [[ $OSTYPE == cygwin* ]]; then
       case $COMPV in