JsonPathParserError when property name starts with "true" or "false

[dgDSA]

A JsonPathParserError is raised when a JsonPath property starts with the word "true" or "false", e.g.:

Python 3.10.13 (main, Apr 22 2024, 14:22:37) [GCC 11.4.0] on linux
Type "help", "copyright", "credits" or "license" for more information.

import jsonpath_ng, jsonpath_ng.ext
jsonpath_ng.version
'1.6.1'
jsonpath_ng.ext.parser.parse("trueName")
Traceback (most recent call last):
File "", line 1, in
File "/home/dg/ConnectedVehicle.git/pyotx/_3rdparty/jsonpath_ng/ext/parser.py", line 174, in parse
return ExtentedJsonPathParser(debug=debug).parse(path)
File "/home/dg/ConnectedVehicle.git/pyotx/_3rdparty/jsonpath_ng/parser.py", line 38, in parse
return self.parse_token_stream(lexer.tokenize(string))
File "/home/dg/ConnectedVehicle.git/pyotx/_3rdparty/jsonpath_ng/parser.py", line 62, in parse_token_stream
return new_parser.parse(lexer = IteratorToTokenStream(token_iterator))
File "/home/dg/ConnectedVehicle.git/pyotx/_3rdparty/ply/yacc.py", line 333, in parse
return self.parseopt_notrack(input, lexer, debug, tracking, tokenfunc)
File "/home/dg/ConnectedVehicle.git/pyotx/_3rdparty/ply/yacc.py", line 1201, in parseopt_notrack
tok = call_errorfunc(self.errorfunc, errtoken, self)
File "/home/dg/ConnectedVehicle.git/pyotx/_3rdparty/ply/yacc.py", line 192, in call_errorfunc
r = errorfunc(token)
File "/home/dg/ConnectedVehicle.git/pyotx/_3rdparty/jsonpath_ng/parser.py", line 78, in p_error
raise JsonPathParserError('Parse error at %s:%s near token %s (%s)'
jsonpath_ng.exceptions.JsonPathParserError: Parse error at 1:0 near token True (BOOL)

Note: I found the bug while testing corner cases. Thus, this bug report is very low priority for me.

[michaelmior]

@dgDSA Would you be able to provide a complete example that reproduces this bug?

[dgDSA]

Actually, the one line from my original comment is enough to reproduce the bug:
jsonpath_ng.ext.parser.parse("trueName")

Here is another, more comprehensive example:

import json
import jsonpath_ng.ext

json_object = json.loads('{"problems_detected": 4, "false_positives": 2}')

expression1 = jsonpath_ng.ext.parser.parse("problems_detected")
print(f"Expression 1 match: {expression1.find(json_object)[0].value}")

expression2 = jsonpath_ng.ext.parser.parse("false_positives")
print(f"Expression 2 match: {expression2.find(json_object)[0].value}")