Try harder when running on a system with incorrectly configured locale.

ZSH will still be broken when locale is misconfigured but at least p10k
will work so users will look for help elsewhere.

Fixes #173.

config/p10k-classic.zsh

@@ -16,7 +16,9 @@ fi
 () {
   emulate -L zsh
   setopt no_unset
-  local LC_ALL=C.UTF-8
+  if [[ ${LC_ALL:-${LANG:-}} != *.(utf|UTF)(-|)8 ]]; then
+    local LC_ALL=${${(@M)$(locale -a):#*.(utf|UTF)(-|)8}[1]:-en_US.UTF-8}
+  fi
 
   # Unset all configuration options. This allows you to apply configiguration changes without
   # restarting zsh. Edit ~/.p10k.zsh and type `source ~/.p10k.zsh`.

config/p10k-lean.zsh

@@ -16,7 +16,9 @@ fi
 () {
   emulate -L zsh
   setopt no_unset
-  local LC_ALL=C.UTF-8
+  if [[ ${LC_ALL:-${LANG:-}} != *.(utf|UTF)(-|)8 ]]; then
+    local LC_ALL=${${(@M)$(locale -a):#*.(utf|UTF)(-|)8}[1]:-en_US.UTF-8}
+  fi
 
   # Unset all configuration options. This allows you to apply configiguration changes without
   # restarting zsh. Edit ~/.p10k.zsh and type `source ~/.p10k.zsh`.

internal/icons.zsh

@@ -3,6 +3,10 @@ typeset -gA icons
 function _p9k_init_icons() {
   [[ $+_p9k_icon_mode == 1 && $_p9k_icon_mode == $POWERLEVEL9K_MODE ]] && return
   typeset -g _p9k_icon_mode=$POWERLEVEL9K_MODE
+  typeset -g _p9k_locale=${LC_ALL:-$LANG}
+  if [[ $_p9k_locale != *.(utf|UTF)(-|)8 ]]; then
+    _p9k_locale=${${(@M)$(locale -a):#*.(utf|UTF)(-|)8}[1]:-en_US.UTF-8}
+  fi
 
   case $POWERLEVEL9K_MODE in
     'flat'|'awesome-patched')
@@ -521,6 +525,7 @@ function _p9k_init_icons() {
 function print_icon() {
   emulate -L zsh && setopt no_hist_expand extended_glob no_prompt_bang prompt_{cr,percent,subst,sp}
   _p9k_init_icons
+  local LC_ALL=$_p9k_locale
   local icon_name=$1
   local var_name=POWERLEVEL9K_${icon_name}
   if [[ -n "${(tP)var_name}" ]]; then
@@ -538,6 +543,7 @@ function print_icon() {
 function get_icon_names() {
   emulate -L zsh && setopt no_hist_expand extended_glob no_prompt_bang prompt_{cr,percent,subst,sp}
   _p9k_init_icons
+  local LC_ALL=$_p9k_locale
   # Iterate over a ordered list of keys of the icons array
   for key in ${(@kon)icons}; do
     echo -n "POWERLEVEL9K_$key: "

internal/p10k.zsh

@@ -147,7 +147,7 @@ function _p9k_declare() {
       (( set )) && typeset -g _$2=${(P)2} || typeset -g _$2=$3
       ;;
     -e)
-      local LC_ALL=C.UTF-8
+      local LC_ALL=$_p9k_locale
       if (( set )); then
         local v=${(P)2}
         typeset -g _$2=${(g::)v}
@@ -330,7 +330,7 @@ _p9k_get_icon() {
       if [[ $_p9k_ret == $'\1'* ]]; then
         _p9k_ret=${_p9k_ret[2,-1]}
       else
-        local LC_ALL=C.UTF-8
+        local LC_ALL=$_p9k_locale
         _p9k_ret=${(g::)_p9k_ret}
         [[ $_p9k_ret != $'\b'? ]] || _p9k_ret="%{$_p9k_ret%}"  # penance for past sins
       fi
@@ -551,7 +551,7 @@ _p9k_left_prompt_segment() {
 
     p+='${${_p9k_e:#00}:+${${_p9k_t[$_p9k_n]/'$ss'/$_p9k_ss}/'$s'/$_p9k_s}'
 
-    local LC_ALL=C.UTF-8
+    local LC_ALL=$_p9k_locale
     _p9k_param $1 ICON_BEFORE_CONTENT ''
     if [[ $_p9k_ret != false ]]; then
       _p9k_param $1 PREFIX ''
@@ -752,7 +752,7 @@ _p9k_right_prompt_segment() {
 
     p+='${${_p9k_e:#00}:+${_p9k_t[$_p9k_n]/'$w'/$_p9k_w}'
 
-    local LC_ALL=C.UTF-8
+    local LC_ALL=$_p9k_locale
     _p9k_param $1 ICON_BEFORE_CONTENT ''
     if [[ $_p9k_ret != true ]]; then
       _p9k_param $1 PREFIX ''
@@ -1091,7 +1091,7 @@ prompt_context() {
       if [[ -z $content ]]; then
         local var=POWERLEVEL9K_CONTEXT_${state}_TEMPLATE
         if (( $+parameters[$var] )); then
-          local LC_ALL=C.UTF-8
+          local LC_ALL=$_p9k_locale
           content=${(P)var}
           content=${(g::)content}
         else
@@ -3553,7 +3553,7 @@ _p9k_init_params() {
   if [[ $parameters[POWERLEVEL9K_BATTERY_STAGES] == scalar ]]; then
     _p9k_declare -e POWERLEVEL9K_BATTERY_STAGES
   else
-    local LC_ALL=C.UTF-8
+    local LC_ALL=$_p9k_locale
     _p9k_declare -a POWERLEVEL9K_BATTERY_STAGES --
     _POWERLEVEL9K_BATTERY_STAGES=("${(@g::)_POWERLEVEL9K_BATTERY_STAGES}")
   fi
@@ -3816,7 +3816,7 @@ _p9k_build_gap_post() {
 }
 
 _p9k_init_lines() {
-  local LC_ALL=C.UTF-8
+  local LC_ALL=$_p9k_locale
   local -a left_segments=($_POWERLEVEL9K_LEFT_PROMPT_ELEMENTS)
   local -a right_segments=($_POWERLEVEL9K_RIGHT_PROMPT_ELEMENTS)
 
@@ -4223,7 +4223,7 @@ _p9k_init() {
 
   if _p9k_segment_in_use dir; then
     if (( $+_POWERLEVEL9K_DIR_CLASSES )); then
-      local LC_ALL=C.UTF-8
+      local LC_ALL=$_p9k_locale
       local -i i=3
       for ((; i <= $#_POWERLEVEL9K_DIR_CLASSES; i+=3)); do
         _POWERLEVEL9K_DIR_CLASSES[i]=${(g::)_POWERLEVEL9K_DIR_CLASSES[i]}

internal/wizard.zsh

@@ -5,7 +5,9 @@ setopt noaliases
 
 () {
 setopt extended_glob no_prompt_{bang,subst} prompt_{cr,percent,sp}
-local LC_ALL=C.UTF-8
+if [[ ${LC_ALL:-$LANG} != *.(utf|UTF)(-|)8 ]]; then
+  local LC_ALL=${${(@M)$(locale -a):#*.(utf|UTF)(-|)8}[1]:-en_US.UTF-8}
+fi
 
 typeset -g __p9k_root_dir
 typeset -gi force=0