From e59324a53fda9c02d82f4062409e9a6d4db0c48a Mon Sep 17 00:00:00 2001
From: Seoxi Ryouko <amaterasuseoxi@proton.me>
Date: Sun, 4 May 2025 22:58:17 -0400
Subject: [PATCH] Made more portable by using grep -E

---
 README.md    | 7 ++++---
 ls_zero.bash | 2 +-
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/README.md b/README.md
index 11f9b76..29225e2 100644
--- a/README.md
+++ b/README.md
@@ -4,8 +4,9 @@ ls zero bash polyfill
 allows you to simulate the --zero option of ls from
 gnu coreutils v9, in earlier versions
 
-relies on coreutils (ls and tr), and grep with
-the -P option
+also works with bsdgrep, for usage on bsd and mac
+
+relies on coreutils (ls and tr), and grep
 
 simply source ls_zero.bash in your .bashrc,
-place it in /etc/profile.d, or similar
\ No newline at end of file
+place it in /etc/profile.d, or similar
diff --git a/ls_zero.bash b/ls_zero.bash
index 8a081bd..5c1e77a 100644
--- a/ls_zero.bash
+++ b/ls_zero.bash
@@ -4,7 +4,7 @@ _ls() {
 }
 
 _lsp() {
-	printf "%s" "$*" | grep -qP '(\s|^)--zero(\s|$)'
+	printf "%s" "$*" | grep -qE '(^| )--zero( |$)'
 	local zero=$?
 	local args="$@"
 	declare -a args=(${args[@]/--zero/})