Dot notation with number -1

Setup

Selector: $.-1

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

Results

Other responses

Bash (JSONPath.sh) 

[]

C (json-glib) 

[]

Clojure (json-path) ¹ 

null

Cpp (jsoncons)

Not supported

Expected '$' or function expression at line 1 and column 3

Dart (json_path)

Not supported

ParserException[1:2]: end of input expected

Elixir (ExJsonPath) 

[
  "fifth"
]

Elixir (jaxon) 

[]

Elixir (warpath) ¹ 

null

Erlang (ejsonpath)

Not supported

syntax error before: '-'

FSharp (FSharp.Data.JsonPath) 

[]

Golang (github.com-PaesslerAG-jsonpath) ¹

Not supported

parsing error: $.-1	:1:3 - 1:4 unexpected "-" while scanning JSON select expected Ident, "." or "*"

Golang (github.com-bhmj-jsonslice) ¹ ³ 

"fifth"

Golang (github.com-ohler55-ojg)

Not supported

Golang (github.com-oliveagle-jsonpath) ¹ 

[]

Golang (github.com-spyzhov-ajson) 

[
  "fifth"
]

Golang (github.com-theory-jsonpath)

Not supported

jsonpath: unexpected integer at position 3

Golang (github.com-vmware-labs-yaml-jsonpath) 

[]

Haskell (jsonpath) 

[]

JavaScript (Goessner) ²

Not found

jsonpath returned false, this might indicate an error

JavaScript (brunerd)

Not supported

JavaScript (jsonpath) 

[]

JavaScript (jsonpath-plus) 

[]

JavaScript (jsonpathly) 

[
  "fifth"
]

Java (com.github.jsurfer) 

[]

Java (com.github.xmljacquard.ajp)

Not supported

Error at char 18 in expression in xsl:sequence/@select on line 20 column 67 of ajp-runner.xslt:
   <failed xmlns:ixml="http://invisiblexml.org/NS"
  ixml:state="failed"><line>1</line><column>3</column><pos>3</pos><unexpected>-</unexpected><permitted>'*', '_', [#80-'퟿[xd7ff]'], ['A'-'Z'; 'a'-'z'], ['𐀀[x10000]'-'􏿯[x10ffef]'], ['[xe000]'-'￯[xffef]']</permitted><could-be-next><in rule="ALPHA"><tokens>['A'-'Z'; 'a'-'z']</tokens></in><in rule="wildcard-selector"><tokens>'*'</tokens></in><in rule="name-first"><tokens>'_', [#80-'퟿[xd7ff]'], ['𐀀[x10000]'-'􏿯[x10ffef]'], ['[xe000]'-'￯[xffef]']</tokens></in></could-be-next><unfinished><open rule="child-segment" start="2" end="2"><input>.</input></open><open rule="jsonpath-query" start="1" end="1"><input>$</input></open></unfinished></failed>
During lazy evaluation of tailCallLoop(ajp:getProcessor(...)) on line 20 of jar:file:./implementations/Java_com.github.xmljacquard.ajp/build/deps/org/xmljacquard/ajp/0.0.7/ajp-0.0.7.jar!/xslt/ajp-runner.xslt
In function ajpr:getProcessor on line 17 column 106 of ajp-runner.xslt:
net.sf.saxon.s9api.SaxonApiException: <failed xmlns:ixml="http://invisiblexml.org/NS" ixml:state="failed"><line>1</line><column>3</column><pos>3</pos><unexpected>-</unexpected><permitted>'*', '_', [#80-'퟿'], ['A'-'Z'; 'a'-'z'], ['𐀀'-'􏿯'], [''-'￯']</permitted><could-be-next><in rule="ALPHA"><tokens>['A'-'Z'; 'a'-'z']</tokens></in><in rule="wildcard-selector"><tokens>'*'</tokens></in><in rule="name-first"><tokens>'_', [#80-'퟿'], ['𐀀'-'􏿯'], [''-'￯']</tokens></in></could-be-next><unfinished><open rule="child-segment" start="2" end="2"><input>.</input></open><open rule="jsonpath-query" start="1" end="1"><input>$</input></open></unfinished></failed>

Java (com.jayway.jsonpath) ¹ ³

Not found

SLF4J(W): No SLF4J providers were found.
SLF4J(W): Defaulting to no-operation (NOP) logger implementation
SLF4J(W): See https://www.slf4j.org/codes.html#noProviders for further details.
com.jayway.jsonpath.PathNotFoundException: Expected to find an object with property ['-1'] in path $ but found 'net.minidev.json.JSONArray'. This is not a json object according to the JsonProvider: 'com.jayway.jsonpath.spi.json.JsonSmartJsonProvider'.

Kotlin (com.nfeld.jsonpathkt) ¹ 

null

Objective-C (SMJJSONPath) ¹ ³

Not found

Expected to find an object with property ['-1'] in path $ but found 'GSArray'. This is not a json object.

PHP (Goessner) ²

Not found

jsonpath returned false, this might indicate an error

PHP (galbar-jsonpath)

Not supported

Invalid JSONPath error: 'Error in JSONPath near '.-1''

PHP (remorhaz-jsonpath)

Not supported

Error: 'Failed to build AST from JSONPath query: $.-1'

PHP (softcreatr-jsonpath) 

[
  "fifth"
]

Perl (JSON-Path) 

[
  "fifth"
]

Python (jsonpath) ²

Not found

jsonpath returned false, this might indicate an error

Python (jsonpath-ng) 

[]

Python (jsonpath-rw)

Not supported

Exception('Parse error at 1:2 near token -1 (NUMBER)')

Python (jsonpath2)

Not supported

line 1:2 mismatched input '-1' expecting {'*', ID}
ValueError("line 1:2 mismatched input '-1' expecting {'*', ID}")

Python (python-jsonpath)

Not supported

JSONPathSyntaxError('expected a shorthand selector')

Raku (JSON-Path)

Not supported

JSON path parse error at position 1

Ruby (janeway-jsonpath)

Not supported

Jsonpath query $.-1 - Dot "." begins a name selector, and must be followed by an object member name, "-" is invalid here

Ruby (jsonpath) 

[]

Rust (jsonpath) 

[]

Rust (jsonpath_lib) 

[]

Rust (jsonpath_plus) 

[]

Rust (serde_json_path)

Not supported

at position 2, in dot member name, must start with lowercase alpha or '_'

Scala (jsonpath) 

[]

Swift (Sextant) 

[]

dotNET (Json.NET) 

[]

dotNET (JsonCons.JsonPath)

Not supported

Expected unquoted string, or single or double quoted string, or index or '*'

dotNET (JsonPath.Net)

Not supported

Could not find any valid selectors.

dotNET (JsonPathLib) 

[]

dotNET (Manatee.Json)

Not supported

Unrecognized JSON Path element. Path up to error: '$'

Errors

JavaScript (json-p3) 

unexpected shorthand selector '-' ('$.-1':2)

Footnotes