Fix nested maps spanning multiple lines in flow syntax

ChangeLog.md

@@ -3,6 +3,10 @@ YAML for XP Framework ChangeLog
 
 ## ?.?.? / ????-??-??
 
+## 7.0.1 / 2022-10-18
+
+* Fixed nested maps spanning multiple lines in flow syntax - @thekid
+
 ## 7.0.0 / 2022-10-18
 
 * Merged PR #8: Implement [Merge Key](https://yaml.org/type/merge.html)

src/main/php/org/yaml/Input.class.php

@@ -176,7 +176,7 @@ private function escape($in, &$offset) {
    * @param  string $end
    * @return var[]
    */
-  private function token($in, &$offset, $end= '#') {
+  private function token(&$in, &$offset, $end= '#') {
     $l= strlen($in);
     $offset+= strspn($in, ' ', $offset);
     if ($offset >= $l) return null;

src/test/php/org/yaml/unittest/FlowCollectionsTest.class.php

@@ -156,4 +156,26 @@ public function nested_maps() {
   public function quoted_curly_braces() {
     $this->assertEquals(['{' => '}'], $this->parse('{ "{" : "}" }'));
   }
+
+  #[Test]
+  public function mongodb_query() {
+    $this->assertEquals(
+      [
+        ['$project' => [
+          'goals' => ['tag' => 1],
+          'name'  => 1,
+        ]],
+        ['$limit' => 1]
+      ],
+      $this->parse(str_replace("\n        ", "\n", '
+        - $project: {
+          goals : {
+            tag : 1
+          },
+          name : 1
+        }
+        - $limit: 1
+      '))
+    );
+  }
 }