Add space after the opening brace and before closing braces of single line dictionaries

Close #43

Author: NathanLovato

queries/gdscript.scm

@@ -34,6 +34,7 @@
   "{" @append_empty_softline @append_indent_start
   "}" @prepend_empty_softline @append_empty_softline @prepend_indent_end)
 (dictionary "," @append_spaced_softline . (comment)? @do_nothing)
+(dictionary "{" @append_space "}" @prepend_space (#single_line_only!))
 (pair ":" @append_space)
 
 ; FUNCTIONS

tests/expected/dictionaries.gd

@@ -0,0 +1,11 @@
+# The output has long lines wrapped to 100 characters and trailing commas.
+var dialogue_items: Array[Dictionary] = [
+	{ "expression": expressions["regular"], "text": "I've been studying arrays and dictionaries lately.", "character": bodies["sophia"] },
+	{ "expression": expressions["regular"], "text": "Oh, nice. How has it been going?", "character": bodies["pink"] },
+]
+# Single line dict should have a space after { and before }
+var my_dictionary = { key = "value" }
+# But only if it fits on one line
+var my_dictionary_2 = {
+	key = "value"
+}

tests/expected/dictionary_long_strings.gd

@@ -3,3 +3,8 @@ var dialogue_items: Array[Dictionary] = [
 	{"expression"   : expressions["regular"],"text": "I've been studying arrays and dictionaries lately.","character": bodies["sophia"]},
 	{  "expression"  :  expressions[  "regular"] ,   "text": "Oh, nice. How has it been going?","character": bodies["pink"] },
 ]
+# Single line dict should have a space after { and before }
+var my_dictionary = {key = "value"}
+# But only if it fits on one line
+var my_dictionary_2 = {
+	key = "value"}