Results do not match other implementations

[cburgmer]

The following queries provide results that do not match those of other implementations of JSONPath
(compare https://cburgmer.github.io/json-path-comparison/):

• $[1:10]
  Input:

  ["first", "second", "third"]
  

  Expected output:

  ["second", "third"]
  

  Error:

  sed: bad regex '\[(([0-9]+|"[^"]+")[],]){9999}(.*)': Invalid contents of {}
  No JSON object could be decoded
  

• $[-1:]
  Input:

  ["first", "second", "third"]
  

  Expected output:

  ["third"]
  

  Actual output:

  ["first", "second", "third"]
  

• $[1:]
  Input:

  ["first", "second", "third", "forth", "fifth"]
  

  Expected output:

  ["second", "third", "forth", "fifth"]
  

  Error:

  sed: bad regex '\[(([0-9]+|"[^"]+")[],]){9999}(.*)': Invalid contents of {}
  No JSON object could be decoded
  

• $[0:3:2]
  Input:

  ["first", "second", "third", "forth", "fifth"]
  

  Expected output:

  ["first", "third"]
  

  Actual output:

  ["first", "second", "third", "forth", "fifth"]
  

• $[0:3:1]
  Input:

  ["first", "second", "third", "forth", "fifth"]
  

  Expected output:

  ["first", "second", "third"]
  

  Actual output:

  ["first", "second", "third", "forth", "fifth"]
  

• $['key']
  Input:

  {"key": "value"}
  

  Expected output:

  ["value"]
  

  Actual output:

  {"key": "value"}
  

• $['key','another']
  Input:

  {"key": "value", "another": "entry"}
  

  Expected output:

  ["value", "entry"]
  

  Actual output:

  {"another": "entry", "key": "value"}
  

• $['0']
  Input:

  {"0": "value"}
  

  Expected output:

  ["value"]
  

  Error:

  sed: bad regex '\[(([0-9]+|"[^"]+")[],]){9999}(.*)': Invalid contents of {}
  No JSON object could be decoded
  

• $['special:"chars']
  Input:

  {"special:\"chars": "value"}
  

  Expected output:

  ["value"]
  

  Error:

  sed: bad regex '\[(([0-9]+|"[^"]+")[],]){9999}(.*)': Invalid contents of {}
  No JSON object could be decoded
  

• $['*']
  Input:

  {"*": "value"}
  

  Expected output:

  ["value"]
  

  Actual output:

  {"*": "value"}
  

• $.key
  Input:

  {"key": "value"}
  

  Expected output:

  ["value"]
  

  Actual output:

  {"key": "value"}
  

• $.key
  Input:

  {"key": ["first", "second"]}
  

  Expected output:

  [["first", "second"]]
  

  Actual output:

  ["first", "second"]
  

• $.key
  Input:

  {"key": null}
  

  Expected output:

  [null]
  

  Actual output:

  {"key": null}
  

• $..key
  Input:

  {"object": {"key": "value", "array": [{"key": "something"}, {"key": {"key": "russian dolls"}}]}, "key": "top"}
  

  Expected output:

  ["top", "value", "something", {"key": "russian dolls"}, "russian dolls"]
  

  Actual output:

  {"key": "top", "object": {"array": [{"key": "something"}, {"key": {"key": "russian dolls"}}], "key": "value"}}
  

• $.store..price
  Input:

  {"store": {"book": [{"category": "reference", "author": "Nigel Rees", "title": "Sayings of the Century", "price": 8.95}, {"category": "fiction", "author": "Evelyn Waugh", "title": "Sword of Honour", "price": 12.99}, {"category": "fiction", "author": "Herman Melville", "title": "Moby Dick", "isbn": "0-553-21311-3", "price": 8.99}, {"category": "fiction", "author": "J. R. R. Tolkien", "title": "The Lord of the Rings", "isbn": "0-395-19395-8", "price": 22.99}], "bicycle": {"color": "red", "price": 19.95}}}
  

  Expected output:

  [8.95, 12.99, 8.99, 22.99, 19.95]
  

  Actual output:

  {"bicycle": {"price": 19.95}, "book": [{"price": 8.95}, {"price": 12.99}, {"price": 8.99}, {"price": 22.99}]}
  

• $
  Input:

  {"key": "value", "another key": {"complex": ["a", 1]}}
  

  Expected output:

  [{"another key": {"complex": ["a", 1]}, "key": "value"}]
  

  Error:

  sed: bad regex '\[(([0-9]+|"[^"]+")[],]){9999}(.*)': Invalid contents of {}
  No JSON object could be decoded
  

• $[*]
  Input:

  ["string", 42, {"key": "value"}, [0, 1]]
  

  Expected output:

  ["string", 42, {"key": "value"}, [0, 1]]
  

  Error:

  Extra data: line 4 column 6 - line 12 column 1 (char 28 - 94)
  

• $[*]
  Input:

  {"some": "string", "int": 42, "object": {"key": "value"}, "array": [0, 1]}
  

  Expected output:

  ["string", 42, {"key": "value"}, [0, 1]]
  

  Actual output:

  {"array": [0, 1], "int": 42, "object": {"key": "value"}, "some": "string"}
  

• $.*
  Input:

  ["string", 42, {"key": "value"}, [0, 1]]
  

  Expected output:

  ["string", 42, {"key": "value"}, [0, 1]]
  

  Error:

  Extra data: line 4 column 6 - line 12 column 1 (char 28 - 94)
  

• $.*
  Input:

  {"some": "string", "int": 42, "object": {"key": "value"}, "array": [0, 1]}
  

  Expected output:

  ["string", 42, {"key": "value"}, [0, 1]]
  

  Actual output:

  {"array": [0, 1], "int": 42, "object": {"key": "value"}, "some": "string"}
  

For reference, the output was generated by the program in https://github.com/cburgmer/json-path-comparison/tree/Bash_JSONPath.sh/implementations/Bash_JSONPath.sh.

[cburgmer]

Hey, opened a bunch of those with other projects as well. Special here is that I had to resort to Docker, as I have issues running it on OS X, will follow up with issue here.
Docker is not feasible right now for maintaining the comparison project with >10 implementations and >40 queries, so the comparison against your Bash implementation is on a branch for now.

[cburgmer]

Thanks for reviewing. I do however see two items marked done here as still failing:

• https://cburgmer.github.io/json-path-comparison/#key_bracket_notation_with_star_literal
• https://cburgmer.github.io/json-path-comparison/#key_bracket_notation_with_number

[mclarkson]

Hi! I did quite a bit of work on this over the weekend and fixed a lot of little bugs. I need to fix the json outputter for a couple of your tests which I'll get back to when I find some time again :)

Note to self:

echo '["string", 42, {"key": "value"}, [0, 1]]' | ../../JSONPath.sh '$[*]' -j | python -m json.tool
Extra data: line 4 column 6 (char 28)

I like your comparison table and thanks for your great work!