tomllib: Allow newlines and trailing comma in inline tables (TOML 1.1)

Author: hukkin

…mllib/data/valid/empty-inline-table.json …lid/inline-table/empty-inline-table.jsonLib/test/test_tomllib/data/valid/empty-inline-table.json renamed to Lib/test/test_tomllib/data/valid/inline-table/empty-inline-table.json Lib/test/test_tomllib/data/valid/empty-inline-table.json renamed to Lib/test/test_tomllib/data/valid/inline-table/empty-inline-table.json

@@ -0,0 +1,35 @@
+{
+  "multiline": {
+    "a": {
+      "type": "integer",
+      "value": "1"
+    },
+    "b": {
+      "type": "integer",
+      "value": "2"
+    },
+    "c": [
+      {
+        "type": "integer",
+        "value": "1"
+      },
+      {
+        "type": "integer",
+        "value": "2"
+      },
+      {
+        "type": "integer",
+        "value": "3"
+      }
+    ],
+    "d": {
+      "type": "integer",
+      "value": "3"
+    },
+    "e": {
+      "type": "integer",
+      "value": "4"
+    },
+    "f": {}
+  }
+}

…mllib/data/valid/empty-inline-table.toml …lid/inline-table/empty-inline-table.tomlLib/test/test_tomllib/data/valid/empty-inline-table.toml renamed to Lib/test/test_tomllib/data/valid/inline-table/empty-inline-table.toml Lib/test/test_tomllib/data/valid/empty-inline-table.toml renamed to Lib/test/test_tomllib/data/valid/inline-table/empty-inline-table.toml

@@ -0,0 +1,12 @@
+multiline = {
+  "a" = 1, "b" = 2,
+  c = [
+       1,
+       2,
+       3,
+      ],# comment
+  d = 3,
+  e = 4, f = {
+              # comment
+             },
+}

Lib/test/test_tomllib/data/valid/inline-table/multiline-inline-table.json

@@ -516,7 +516,7 @@ def parse_inline_table(src: str, pos: Pos, parse_float: ParseFloat) -> tuple[Pos
     nested_dict = NestedDict()
     flags = Flags()
 
-    pos = skip_chars(src, pos, TOML_WS)
+    pos = skip_comments_and_array_ws(src, pos)
     if src.startswith("}", pos):
         return pos + 1, nested_dict.dict
     while True:
@@ -531,16 +531,18 @@ def parse_inline_table(src: str, pos: Pos, parse_float: ParseFloat) -> tuple[Pos
         if key_stem in nest:
             raise TOMLDecodeError(f"Duplicate inline table key {key_stem!r}", src, pos)
         nest[key_stem] = value
-        pos = skip_chars(src, pos, TOML_WS)
+        pos = skip_comments_and_array_ws(src, pos)
         c = src[pos : pos + 1]
         if c == "}":
             return pos + 1, nested_dict.dict
         if c != ",":
             raise TOMLDecodeError("Unclosed inline table", src, pos)
+        pos += 1
+        pos = skip_comments_and_array_ws(src, pos)
+        if src.startswith("}", pos):
+            return pos + 1, nested_dict.dict
         if isinstance(value, (dict, list)):
             flags.set(key, Flags.FROZEN, recursive=True)
-        pos += 1
-        pos = skip_chars(src, pos, TOML_WS)
 
 
 def parse_basic_str_escape(