Allow wildcards in segment lists.

Author: jg-rp

CHANGELOG.md

@@ -8,6 +8,7 @@
 - Added the built-in `search` filter function.
 - Added the built-in `value` filter function.
 - Pass the current environment to filter function validation.
+- Added support for the wildcard selector in selector segment lists.
 
 **Fixes**
 

jsonpath/parse.py

@@ -328,7 +328,9 @@ def parse_slice(self, stream: TokenStream) -> SliceSelector:
     def parse_selector_list(self, stream: TokenStream) -> ListSelector:
         """Parse a comma separated list JSONPath selectors from a stream of tokens."""
         tok = stream.next_token()
-        list_items: List[Union[IndexSelector, PropertySelector, SliceSelector]] = []
+        list_items: List[
+            Union[IndexSelector, PropertySelector, SliceSelector, WildSelector]
+        ] = []
 
         while stream.current.kind != TOKEN_RBRACKET:
             if stream.current.kind == TOKEN_INT:
@@ -371,6 +373,8 @@ def parse_selector_list(self, stream: TokenStream) -> ListSelector:
                 )
             elif stream.current.kind == TOKEN_SLICE_START:
                 list_items.append(self.parse_slice(stream))
+            elif stream.current.kind == TOKEN_WILD:
+                list_items.append(WildSelector(env=self.env, token=stream.current))
 
             if stream.peek.kind == TOKEN_EOF:
                 raise JSONPathSyntaxError(

jsonpath/selectors.py

@@ -408,7 +408,9 @@ def __init__(
         *,
         env: JSONPathEnvironment,
         token: Token,
-        items: List[Union[SliceSelector, IndexSelector, PropertySelector]],
+        items: List[
+            Union[SliceSelector, IndexSelector, PropertySelector, WildSelector]
+        ],
     ) -> None:
         super().__init__(env=env, token=token)
         self.items = items
@@ -423,6 +425,8 @@ def __str__(self) -> str:
                 buf.append(f"{start}:{stop}:{step}")
             elif isinstance(item, PropertySelector):
                 buf.append(f"'{item.name}'")
+            elif isinstance(item, WildSelector):
+                buf.append("*")
             else:
                 buf.append(str(item.index))
         return f"[{', '.join(buf)}]"

tests/test_ietf.py

@@ -96,12 +96,12 @@ class Case:
         data={"o": {"j": 1, "k": 2}, "a": [5, 3]},
         want=[1, 2],
     ),
-    # Case(
-    #     description="wildcard selector - double wild",
-    #     path="$.o[*, *]",
-    #     data={"o": {"j": 1, "k": 2}, "a": [5, 3]},
-    #     want=[1, 2, 1, 2],
-    # ),
+    Case(
+        description="wildcard selector - double wild",
+        path="$.o[*, *]",
+        data={"o": {"j": 1, "k": 2}, "a": [5, 3]},
+        want=[1, 2, 1, 2],
+    ),
     Case(
         description="wildcard selector - dot property wild",
         path="$.a[*]",