From ca8cb28cba4d53401ec67ded884059bccb1ef820 Mon Sep 17 00:00:00 2001
From: Koichi Murase <myoga.murase@gmail.com>
Date: Mon, 11 Dec 2023 15:34:48 +0900
Subject: [PATCH] lib/shopt: Remove nocasematch

The setting `shopt -s nocasematch` affects every pattern matching in
Bash including the case statement, [[ str == pat ]] matching,
${var/pat/rep}, and ${var#pat}.  Since the affected range is too
large, this potentially breaks the existing functions.  This setting
`shopt -s nocasematch` seems the one that should be enabled locally
when it is specifically needed rather than being enabled globally.
---
 lib/shopt.sh | 2 --
 1 file changed, 2 deletions(-)

diff --git a/lib/shopt.sh b/lib/shopt.sh
index 2f748af67..589b710b1 100644
--- a/lib/shopt.sh
+++ b/lib/shopt.sh
@@ -25,10 +25,8 @@ shopt -s globstar 2> /dev/null
 # (used in case, [[]], word expansions and command completions)
 if [[ ${OMB_CASE_SENSITIVE:-${CASE_SENSITIVE:-}} == true ]]; then
    shopt -u nocaseglob
-   shopt -u nocasematch
 else
    shopt -s nocaseglob
-   shopt -s nocasematch
 fi
 
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