From c551d3d8dd756816b550dadb9e226c2d3ea6f334 Mon Sep 17 00:00:00 2001
From: Kim Alvefur <zash@zash.se>
Date: Thu, 27 Jan 2022 21:14:22 +0100
Subject: util.format: Skip control code escaping when doing full serialization

Fixes that a multi-line string ended up "like\
\9this" instead of "like\nthis" as can be demonstrated by somehow
initiating a connection to a HTTP server.
---
 util/format.lua | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'util')

diff --git a/util/format.lua b/util/format.lua
index 1cd8d81b..533f3a82 100644
--- a/util/format.lua
+++ b/util/format.lua
@@ -108,7 +108,7 @@ local function format(formatstring, ...)
 		if t == "string" and option ~= "p" then
 			if not valid_utf8(arg) then
 				option = "q";
-			else
+			elseif option ~= "q" then -- gets fully escaped in the next block
 				args[i] = arg:gsub("[%z\1-\8\11-\31\127]", control_symbols):gsub("\n\t?", "\n\t");
 				return spec;
 			end
-- 
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