From f37a9103562116a19c21e3f2f392b9217fca63ab Mon Sep 17 00:00:00 2001
From: Andrew Kelley <andrew@ziglang.org>
Date: Thu, 20 Aug 2026 15:49:41 -0700
Subject: [PATCH] std.zig.stringEscape: relax the escaping rules

pass through everything except characters that have escapes in zig
language and ascii control characters.
---
 lib/std/zig.zig | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/lib/std/zig.zig b/lib/std/zig.zig
index 81baffb36bc70dd6551b4acfd360d2a811db2629..6f060d0550047ec569ccb14ef12330f7db45ffc6 100644
--- a/lib/std/zig.zig
+++ b/lib/std/zig.zig
@@ -538,18 +538,24 @@ test fmtChar {
 }
 
 /// Print the string as escaped contents of a double quoted string.
+///
+/// The following transformations are made:
+/// * escaped: '\n', '\r', '\t', '\\', '"'
+/// * hex-encoded: ascii control characters
+///
+/// Everything else is passed through unmodified.
 pub fn stringEscape(bytes: []const u8, w: *Writer) Writer.Error!void {
     for (bytes) |byte| switch (byte) {
+        '\t' => try w.writeAll("\\t"),
         '\n' => try w.writeAll("\\n"),
         '\r' => try w.writeAll("\\r"),
-        '\t' => try w.writeAll("\\t"),
         '\\' => try w.writeAll("\\\\"),
         '"' => try w.writeAll("\\\""),
-        ' ', '!', '#'...'[', ']'...'~' => try w.writeByte(byte),
-        else => {
+        0...8, 11, 12, 14...0x1f, 0x7f => {
             try w.writeAll("\\x");
             try w.printInt(byte, 16, .lower, .{ .width = 2, .fill = '0' });
         },
+        else => try w.writeByte(byte),
     };
 }
 
-- 
2.54.0