Add :array-type option to json-parse-string

* src/json.c (enum json_array_type): New type.
(struct json_configuration): New field array_type.
(json_parse_args): Rename the last argument.  Handle the
:array-type keyword argument (bug#32793).
(Fjson_parse_string): Update the docstring accordingly.
(json_to_lisp): Handle the case of :array-type being `list'.  Add
a call to 'rarely_quit' inside the loop.
(syms_of_json): Define new symbols.
(Fjson_serialize, Fjson_insert, Fjson_parse_string)
(Fjson_parse_buffer): Update the config struct initializers.

1 files changed, 8 insertions, 0 deletions

diff --git a/test/src/json-tests.el b/test/src/json-tests.el
index 04f91f4abbc..542eec11bf3 100644
--- a/test/src/json-tests.el
+++ b/test/src/json-tests.el
@@ -117,6 +117,14 @@
     (should (equal (json-parse-string input :object-type 'plist)
                    '(:abc [9 :false] :def :null)))))
 
+(ert-deftest json-parse-string/array ()
+  (skip-unless (fboundp 'json-parse-string))
+  (let ((input "[\"a\", 1, [\"b\", 2]]"))
+    (should (equal (json-parse-string input)
+                   ["a" 1 ["b" 2]]))
+    (should (equal (json-parse-string input :array-type 'list)
+                   '("a" 1 ("b" 2))))))
+
 (ert-deftest json-parse-string/string ()
   (skip-unless (fboundp 'json-parse-string))
   (should-error (json-parse-string "[\"formfeed\f\"]") :type 'json-parse-error)