From 0b3ca115206c0332284c80f7f7d42358d96379c1 Mon Sep 17 00:00:00 2001
From: Andrew Kelley <andrew@ziglang.org>
Date: Sun, 15 Feb 2026 16:04:44 -0800
Subject: [PATCH] std.Io.Writer: placeholder code for new {q} format character

intendend to print something with double quotes, escaped the same as a
zig string literal.
---
 lib/std/Io/Writer.zig | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/lib/std/Io/Writer.zig b/lib/std/Io/Writer.zig
index 813142a7a35e48c1de0eaba49bea2a5f47ec1139..c489a5c93d6ef3b4adcf94a2eca16daff8a56eee 100644
--- a/lib/std/Io/Writer.zig
+++ b/lib/std/Io/Writer.zig
@@ -1172,6 +1172,25 @@ pub fn printValue(
                 },
                 else => invalidFmtError(fmt, value),
             },
+            // TODO make this print double quotes and quote-escape the string
+            // according to zig string syntax rules
+            'q' => switch (@typeInfo(T)) {
+                .pointer => |info| switch (info.size) {
+                    .one, .slice => {
+                        const slice: []const u8 = value;
+                        return w.alignBufferOptions(slice, options);
+                    },
+                    .many, .c => {
+                        const slice: [:0]const u8 = std.mem.span(value);
+                        return w.alignBufferOptions(slice, options);
+                    },
+                },
+                .array => {
+                    const slice: []const u8 = &value;
+                    return w.alignBufferOptions(slice, options);
+                },
+                else => invalidFmtError(fmt, value),
+            },
             'B' => switch (@typeInfo(T)) {
                 .int, .comptime_int => return w.printByteSize(value, .decimal, options),
                 .@"struct" => return value.formatByteSize(w, .decimal),
-- 
2.54.0