From eb44d87b523f09e69f2fdc3e9593ade5c254160c Mon Sep 17 00:00:00 2001
From: Peter Steneteg <peter@steneteg.se>
Date: Tue, 7 Oct 2025 20:34:00 +0200
Subject: [PATCH] docs: range formatter grammar fix (#4567)

---
 doc/syntax.md | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/doc/syntax.md b/doc/syntax.md
index 46d7d2fd..b628a56f 100644
--- a/doc/syntax.md
+++ b/doc/syntax.md
@@ -718,7 +718,7 @@ These modifiers are only supported for the `'H'`, `'I'`, `'M'`, `'S'`, `'U'`,
 Format specifications for range types have the following syntax:
 
 <pre><code class="language-json"
->range_format_spec ::= ["n"][range_type][range_underlying_spec]</code>
+>range_format_spec ::= ["n"][range_type][":" range_underlying_spec]</code>
 </pre>
 
 The `'n'` option formats the range without the opening and closing brackets.
@@ -761,6 +761,8 @@ fmt::print("{::}", std::vector{'h', 'e', 'l', 'l', 'o'});
 // Output: [h, e, l, l, o]
 fmt::print("{::d}", std::vector{'h', 'e', 'l', 'l', 'o'});
 // Output: [104, 101, 108, 108, 111]
+fmt::print("{:n:f}", std::array{std::numbers::pi, std::numbers::e});
+// Output: 3.141593, 2.718282
 ```
 
 ## Format Examples