From 730e10bd6f3bc04050a0d3c161c08a6145f61099 Mon Sep 17 00:00:00 2001
From: Feoramund <161657516+Feoramund@users.noreply.github.com>
Date: Sun, 21 Jul 2024 23:17:18 -0400
Subject: [PATCH] Support printing `Regular_Expression` in `fmt`

---
 core/fmt/fmt.odin | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/core/fmt/fmt.odin b/core/fmt/fmt.odin
index 9aa9c99dc..22ac1cc36 100644
--- a/core/fmt/fmt.odin
+++ b/core/fmt/fmt.odin
@@ -9,6 +9,7 @@ import "core:io"
 import "core:reflect"
 import "core:strconv"
 import "core:strings"
+import "core:text/regex"
 import "core:time"
 import "core:unicode/utf8"
 
@@ -2405,6 +2406,21 @@ fmt_named :: proc(fi: ^Info, v: any, verb: rune, info: runtime.Type_Info_Named)
 			write_padded_number(fi, (ns), 9)
 			io.write_string(fi.writer, " +0000 UTC", &fi.n)
 			return
+
+		case regex.Regular_Expression:
+			io.write_byte(fi.writer, '/')
+			for r in a.original_pattern {
+				if r == '/' {
+					io.write_string(fi.writer, `\/`)
+				} else {
+					io.write_rune(fi.writer, r)
+				}
+			}
+			io.write_byte(fi.writer, '/')
+			for flag in a.flags {
+				io.write_byte(fi.writer, regex.Flag_To_Letter[flag])
+			}
+			return
 		}
 	}