From 75539ceced5eff3b622160382edb2accafd609b9 Mon Sep 17 00:00:00 2001
From: Satoshi Amemiya <amemiya@protonmail.com>
Date: Sat, 17 Jul 2021 00:42:16 +0900
Subject: [PATCH] make `_` as word component

---
 src/buffer.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/buffer.rs b/src/buffer.rs
index 752aa09..6679e0d 100644
--- a/src/buffer.rs
+++ b/src/buffer.rs
@@ -15,7 +15,7 @@ enum CharKind {
 impl CharKind {
     fn from_char(c: &char) -> Self {
         use CharKind::*;
-        if c.is_ascii_alphanumeric() {
+        if c == &'_' || c.is_ascii_alphanumeric() {
             return AlphaNumeric;
         }