Allow true/false/null to be name selectors

Author: theory

CHANGELOG.md

@@ -9,6 +9,9 @@ All notable changes to this project will be documented in this file. It uses the
 
 ## [v0.10.1] — Unreleased
 
+### 🐞 Bug Fixes
+
+*   Allow `true`, `false`, and `null` to be used as selectors, e.g., `$.true`.
 
 ### 📔 Notes
 

parser/parse.go

@@ -114,7 +114,7 @@ func (p *parser) parseQuery(root bool) (*spec.PathQuery, error) {
 // parsed Selector.
 func parseNameOrWildcard(lex *lexer) (spec.Selector, error) {
 	switch tok := lex.scan(); tok.tok {
-	case identifier:
+	case identifier, boolTrue, boolFalse, jsonNull:
 		return spec.Name(tok.val), nil
 	case '*':
 		return spec.Wildcard(), nil

parser/parse_test.go

@@ -149,6 +149,30 @@ func TestParseSimple(t *testing.T) {
 				spec.Descendant(spec.Name("xyz")),
 			),
 		},
+		{
+			test: "true_for_name",
+			path: `$.true`,
+			exp: spec.Query(
+				true,
+				spec.Child(spec.Name("true")),
+			),
+		},
+		{
+			test: "false_for_name",
+			path: `$.false`,
+			exp: spec.Query(
+				true,
+				spec.Child(spec.Name("false")),
+			),
+		},
+		{
+			test: "null_for_name",
+			path: `$.null`,
+			exp: spec.Query(
+				true,
+				spec.Child(spec.Name("null")),
+			),
+		},
 		{
 			test: "empty_string",
 			path: "",