Commit f37a9103562116a19c21e3f2f392b9217fca63ab | zig

author	Andrew Kelley <andrew@ziglang.org> 2026-08-20 15:49:41-07:00
committer	Andrew Kelley <andrew@ziglang.org> 2026-08-20 17:35:12-07:00
log	f37a9103562116a19c21e3f2f392b9217fca63ab
tree	e73de47bb228095443a803b8bd408200ff45496b
parent	7e4d15b0c45858ebd24522676c20fc1cda5306ba

pass through everything except characters that have escapes in zig
language and ascii control characters.

1 files changed, 9 insertions(+), 3 deletions(-)

lib/std/zig.zig+9-3

 @@ -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),
+        0...8, 11, 12, 14...0x1f, 0x7f => {
-        else => {
             try w.writeAll("\\x");
             try w.printInt(byte, 16, .lower, .{ .width = 2, .fill = '0' });
         },
+        else => try w.writeByte(byte),
     };
 }