From 0911056d7eb8fe40bd66acab7e0b7cc71acd4f6a Mon Sep 17 00:00:00 2001
From: akbash <akbash@herdr.dev>
Date: Thu, 10 Sep 2026 13:20:03 +0300
Subject: fix: stop token selection at CJK punctuation (#3708)

refs #3706

Co-authored-by: akbash-bot <300245827+akbash-bot@users.noreply.github.com>
---
 src/app/actions.rs | 36 +++++++++++++++++++++++++++++++++++-
 1 file changed, 35 insertions(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/app/actions.rs b/src/app/actions.rs
index ca6f6704..d5d13d5a 100644
--- a/src/app/actions.rs
+++ b/src/app/actions.rs
@@ -1485,7 +1485,21 @@ fn is_word_separator(ch: char) -> bool {
     ch.is_whitespace()
         || matches!(
             ch,
-            '|' | '(' | ')' | '[' | ']' | '{' | '}' | ',' | ';' | '!'
+            '|' | '('
+                | ')'
+                | '['
+                | ']'
+                | '{'
+                | '}'
+                | ','
+                | ';'
+                | '!'
+                | '（'
+                | '）'
+                | '：'
+                | '、'
+                | '。'
+                | '，'
         )
 }
 
@@ -2397,6 +2411,11 @@ mod tests {
                 "/Users/me/Library/Application Support/app/config.json",
             ),
             ("echo 你好-world done", "好", "你好-world"),
+            (
+                "註解已補（slice 4 5b5fcc0715）：整合原本",
+                "5b5fcc0715",
+                "5b5fcc0715",
+            ),
             ("先跑 cargo test", "cargo", "cargo"),
             (
                 "export PATH=$HOME/.cargo/bin:$PATH",
@@ -2451,6 +2470,21 @@ mod tests {
         );
     }
 
+    #[test]
+    fn double_click_word_bounds_treat_cjk_punctuation_as_delimiters() {
+        for delimiter in ['（', '）', '：', '、', '。', '，'] {
+            let row = format!("left{delimiter}right");
+            assert_selects(&row, "left", "left");
+            assert_selects(&row, "right", "right");
+            assert_selects_nothing(&row, &delimiter.to_string());
+            assert_eq!(
+                selected_word(&row, col_of(&row, &delimiter.to_string()) + 1),
+                None,
+                "second display cell of {delimiter:?} should not select"
+            );
+        }
+    }
+
     #[test]
     fn double_click_word_bounds_ignore_delimiters() {
         for (row, click) in [
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