Using a filter in a count() function results in 'unbalanced parentheses' error

[MaximeDeforche]

I seem to be running into an issue when trying to use a filter inside the count() function.

For example, the following JSONPath query:
$[? count(@.likes[? @.location]) > 3]
results in an unbalanced parentheses error even when the parentheses seem to fine.

The error can be reconstructed using the above JSONPath query alongside the following JSON document: twitter.json. The stacktrace of the error is provided below.

Thank you for looking into this.

JSONPathSyntaxError                       Traceback (most recent call last)
----> 1 res = jsonpath.find('$[? count(@.likes[? @.location]) > 3]', doc.doc).values()

File /usr/local/lib/python3.13/site-packages/jsonpath_rfc9535/environment.py:145, in JSONPathEnvironment.find(self, query, value)
    126 def find(
    127     self,
    128     query: str,
    129     value: JSONValue,
    130 ) -> JSONPathNodeList:
    131     """Apply the JSONPath expression _query_ to JSON-like data _value_.
    132 
    133     Arguments:
   (...)    143             an incompatible way.
    144     """
--> 145     return self.compile(query).find(value)

File /usr/local/lib/python3.13/site-packages/jsonpath_rfc9535/environment.py:101, in JSONPathEnvironment.compile(self, query)
     87 def compile(self, query: str) -> JSONPathQuery:  # noqa: A003
     88     """Prepare a JSONPath expression ready for repeated application.
     89 
     90     Arguments:
   (...)     99             unacceptable type.
    100     """
--> 101     tokens = tokenize(query)
    102     stream = TokenStream(tokens)
    103     return JSONPathQuery(env=self, segments=tuple(self.parser.parse(stream)))

File /usr/local/lib/python3.13/site-packages/jsonpath_rfc9535/lex.py:490, in tokenize(query)
    487 lexer.run()
    489 if tokens and tokens[-1].type_ == TokenType.ERROR:
--> 490     raise JSONPathSyntaxError(tokens[-1].message, token=tokens[-1])
    492 return tokens

JSONPathSyntaxError: unbalanced parentheses, line 1, column 30

[jg-rp]

Hi @MaximeDeforche,

Thanks for reporting this. Should be fixed in version 0.1.5, now released.

[MaximeDeforche]

Hi @jg-rp,

Thank you for your quick response, fix and release.
I've tested my query on the new release and it works like a charm!