tomllib: Add \xHH Unicode escape code to basic strings (TOML 1.1)

hukkin · hukkin · commit 880092fe1261 · 2026-01-25T23:00:23.000+02:00
diff --git a/Lib/test/test_tomllib/data/valid/multiline-basic-str/replacements.json b/Lib/test/test_tomllib/data/valid/multiline-basic-str/replacements.json
@@ -1,3 +1,6 @@
 {
-  "escape": {"type":"string","value":"\u001B"}
+  "escape": {"type":"string","value":"\u001B"},
+  "tab": {"type":"string","value":"\t"},
+  "upper-j": {"type":"string","value":"J"},
+  "upper-j-2": {"type":"string","value":"J"}
 }
diff --git a/Lib/test/test_tomllib/data/valid/multiline-basic-str/replacements.toml b/Lib/test/test_tomllib/data/valid/multiline-basic-str/replacements.toml
@@ -1 +1,4 @@
-escape = "\e"
+escape = "\e"
+tab = "\x09"
+upper-j = "\x4a"
+upper-j-2 = "\x4A"
diff --git a/Lib/tomllib/_parser.py b/Lib/tomllib/_parser.py
@@ -564,6 +564,8 @@ def parse_basic_str_escape(
             pos += 1
         pos = skip_chars(src, pos, TOML_WS_AND_NEWLINE)
         return pos, ""
+    if escape_id == "\\x":
+        return parse_hex_char(src, pos, 2)
     if escape_id == "\\u":
         return parse_hex_char(src, pos, 4)
     if escape_id == "\\U":
