From 6a14e5e0683a24c0fe2e6fc826fa04d9b109bc70 Mon Sep 17 00:00:00 2001
From: George Potoshin <george.potoshin@gmail.com>
Date: Thu, 30 Jul 2026 19:24:36 +0200
Subject: [PATCH] #7153

---
 core/text/scanner/scanner.odin                 |  7 ++++++-
 .../text/scanner/test_core_text_scanner.odin   | 18 ++++++++++++++++++
 2 files changed, 24 insertions(+), 1 deletion(-)
 create mode 100644 tests/core/text/scanner/test_core_text_scanner.odin

diff --git a/core/text/scanner/scanner.odin b/core/text/scanner/scanner.odin
index 9445df58c..77e3a1b84 100644
--- a/core/text/scanner/scanner.odin
+++ b/core/text/scanner/scanner.odin
@@ -377,8 +377,13 @@ scan_number :: proc(s: ^Scanner, ch: rune, seen_dot: bool) -> (rune, rune) {
 		ch, ds = digits(s, ch, base, &invalid)
 		digsep |= ds
 		if ch == '.' && .Scan_Floats in s.flags {
+			prev_s := s^
 			ch = advance(s)
-			seen_dot = true
+			if ch == '.' {
+				s^ = prev_s
+			} else {
+				seen_dot = true
+			}
 		}
 	}
 
diff --git a/tests/core/text/scanner/test_core_text_scanner.odin b/tests/core/text/scanner/test_core_text_scanner.odin
new file mode 100644
index 000000000..320eb86b7
--- /dev/null
+++ b/tests/core/text/scanner/test_core_text_scanner.odin
@@ -0,0 +1,18 @@
+package test_core_text_scanner
+
+import "core:testing"
+import s "core:text/scanner"
+
+@test 
+range_operator :: proc(t: ^testing.T) {
+	data := "0x00..=0xff"
+	h: s.Scanner
+	s.init(&h, data, "string")
+	h.flags = s.Odin_Like_Tokens - {.Skip_Comments}
+	testing.expect(t, s.Int == s.scan(&h), "token should be Int")
+	testing.expect(t, '.' == s.scan(&h), "token should be '.'")
+	testing.expect(t, '.' == s.scan(&h), "token should be '.'")
+	testing.expect(t, '=' == s.scan(&h), "token should be '='")
+	testing.expect(t, s.Int == s.scan(&h), "token should be Int")
+	testing.expect(t, s.EOF == s.scan(&h), "token should be EOF")
+}