From 42a4aa941b70ded2dd3be9e9f892471023e70229 Mon Sep 17 00:00:00 2001
From: LoveSy <shana@zju.edu.cn>
Date: Fri, 26 Jul 2024 13:18:22 +0800
Subject: [PATCH] Add unicode feature to switch between `regex` and
 `regex-lite` dep

---
 Cargo.toml | 7 ++++++-
 src/lib.rs | 3 +++
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/Cargo.toml b/Cargo.toml
index 1df4597c..00bbc4a1 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -13,4 +13,9 @@ edition = "2018"
 [dependencies]
 encoding_rs = "0.8.32"
 lazy_static = "1.4.0"
-regex = "1.5.5"
+regex = { version = "1.5.5", optional = true }
+regex-lite = { version = "0.1" }
+
+[features]
+default = ["unicode"]
+unicode = ["dep:regex"]
diff --git a/src/lib.rs b/src/lib.rs
index a64c550f..abb5961b 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -71,7 +71,10 @@ use encoding_rs::EncoderResult;
 use encoding_rs::Encoding;
 use encoding_rs::WINDOWS_1252;
 use lazy_static::lazy_static;
+#[cfg(feature = "unicode")]
 use regex::Regex;
+#[cfg(not(feature = "unicode"))]
+use regex_lite::Regex;
 use std::collections::HashMap;
 use std::collections::VecDeque;
 use std::convert::From;