From dfc41a806d5d9381d4d5d428b949aaed32338829 Mon Sep 17 00:00:00 2001
From: 3w36zj6 <52315048+3w36zj6@users.noreply.github.com>
Date: Mon, 22 Sep 2025 21:58:07 +0900
Subject: [PATCH] =?UTF-8?q?fix(4.2.6):=20=E6=95=B0=E5=80=A4=E3=81=AE?=
 =?UTF-8?q?=E7=AC=A6=E5=8F=B7=E3=81=A8=E3=81=97=E3=81=A6=E3=81=AE=E3=83=8F?=
 =?UTF-8?q?=E3=82=A4=E3=83=95=E3=83=B3=E3=82=92=E8=A8=B1=E5=8F=AF=E3=81=99?=
 =?UTF-8?q?=E3=82=8B?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/4.2.6.js       | 5 +++++
 test/4.2.6-test.js | 3 ++-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/4.2.6.js b/src/4.2.6.js
index c43a1f8..194d71f 100644
--- a/src/4.2.6.js
+++ b/src/4.2.6.js
@@ -28,6 +28,11 @@ module.exports = function (context) {
             const matches = mergeMatches(leftMatches, rightMatches);
             matches.forEach((match) => {
                 const { index } = match;
+                // 数値の符号としてのハイフンは許可する
+                const nextChar = text[index + 1];
+                if (nextChar && /[0-9]/.test(nextChar)) {
+                    return;
+                }
                 report(
                     node,
                     new RuleError(
diff --git a/test/4.2.6-test.js b/test/4.2.6-test.js
index 970a600..1870fbc 100644
--- a/test/4.2.6-test.js
+++ b/test/4.2.6-test.js
@@ -8,7 +8,8 @@ tester.run("4.2.6.ハイフン(-)", rule, {
         "千代田区一番町 1-1-1",
         "03-5555-xxxxx",
         "電話番号は090-1234-5678です",
-        "Allen Wirfs-Brock(アレン・ワーフスブラック)"
+        "Allen Wirfs-Brock(アレン・ワーフスブラック)",
+        "サイン関数は-1から1の範囲の値をとる"
     ],
     invalid: [
         {