From 2bf5fa27be9201cd8a29d9212550ab989968050e Mon Sep 17 00:00:00 2001
From: Junegunn Choi <junegunn.c@gmail.com>
Date: Mon, 27 Jan 2025 19:19:08 +0900
Subject: [PATCH] [completion] Replace 'tr' with built-in string substitution

---
 shell/completion.bash | 5 +++--
 shell/completion.zsh  | 5 +++--
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/shell/completion.bash b/shell/completion.bash
index 0c53e8e6..686ca4c6 100644
--- a/shell/completion.bash
+++ b/shell/completion.bash
@@ -412,7 +412,7 @@ _fzf_proc_completion() {
   local transformer
   transformer='
     if [[ $FZF_KEY =~ ctrl|alt|shift ]] && [[ -n $FZF_NTH ]]; then
-      nths=( $(tr , " " <<< "$FZF_NTH") )
+      nths=( ${FZF_NTH//,/ } )
       new_nths=()
       found=0
       for nth in ${nths[@]}; do
@@ -423,7 +423,8 @@ _fzf_proc_completion() {
         fi
       done
       [[ $found = 0 ]] && new_nths+=($FZF_CLICK_HEADER_NTH)
-      new_nths=$(echo ${new_nths[@]} | tr " " ,)
+      new_nths=${new_nths[*]}
+      new_nths=${new_nths// /,}
       echo "change-nth($new_nths)+change-prompt($new_nths> )"
     else
       if [[ $FZF_NTH = $FZF_CLICK_HEADER_NTH ]]; then
diff --git a/shell/completion.zsh b/shell/completion.zsh
index 1199ac54..22c662b0 100644
--- a/shell/completion.zsh
+++ b/shell/completion.zsh
@@ -293,7 +293,7 @@ _fzf_complete_kill() {
   local transformer
   transformer='
     if [[ $FZF_KEY =~ ctrl|alt|shift ]] && [[ -n $FZF_NTH ]]; then
-      nths=( $(tr , " " <<< "$FZF_NTH") )
+      nths=( ${FZF_NTH//,/ } )
       new_nths=()
       found=0
       for nth in ${nths[@]}; do
@@ -304,7 +304,8 @@ _fzf_complete_kill() {
         fi
       done
       [[ $found = 0 ]] && new_nths+=($FZF_CLICK_HEADER_NTH)
-      new_nths=$(echo ${new_nths[@]} | tr " " ,)
+      new_nths=${new_nths[*]}
+      new_nths=${new_nths// /,}
       echo "change-nth($new_nths)+change-prompt($new_nths> )"
     else
       if [[ $FZF_NTH = $FZF_CLICK_HEADER_NTH ]]; then