Filter expression with value true
Setup
Selector: $[?(true)]
[1, 3, "nice", true, null, false, {}, [], -1, 0, ""]
Results
Other responses
Bash (JSONPath.sh)
[]
C (json-glib)
Not supported
Unable to compile selector `$[?(true)]': Invalid array index definition “?(true)]”
Clojure (json-path)
¹
[
1,
3,
"nice",
true,
null,
false,
{},
[],
-1,
0,
""
]
Cpp (jsoncons)
[
1,
3,
"nice",
true,
null,
false,
{},
[],
-1,
0,
""
]
Dart (json_path)
Not supported
Instance of 'ParserException': end of input expected (at 1:2)
Elixir (ExJsonPath)
Not supported
syntax error before: <<"true">>
Elixir (jaxon)
[]
Elixir (warpath)
¹
[
1,
3,
"nice",
true,
null,
false,
{},
[],
-1,
0,
""
]
Erlang (ejsonpath)
Not supported
syntax error before: ')'
[
1,
3,
"nice",
true,
null,
false,
{},
[],
-1,
0,
""
]
[
1,
3,
"nice",
true,
null,
false,
{},
[],
-1,
0,
""
]
[
1,
3,
"nice",
true,
null,
false,
{},
[],
-1,
0,
""
]
[
[]
]
[
1,
3,
"nice",
true,
null,
false,
{},
[],
-1,
0,
""
]
Not supported
jsonpath: invalid comparison operator at position 9
[
1,
3,
"nice",
true,
null,
false,
{},
[],
-1,
0,
""
]
Haskell (jsonpath)
Not supported
Invalid JSONPath: $[?(true)]
Error: 1:9:
|
1 | $[?(true)]
| ^^
unexpected ")]"
expecting "!=", "<=", "==", ">=", '!', '<', '>', or white space
JavaScript (Goessner)
²
[
1,
3,
"nice",
true,
{},
[],
-1
]
JavaScript (brunerd)
[
1,
3,
"nice",
true,
null,
false,
{},
[],
-1,
0,
""
]
JavaScript (jsonpath)
[
1,
3,
"nice",
true,
null,
false,
{},
[],
-1,
0,
""
]
JavaScript (jsonpath-plus)
[
1,
3,
"nice",
true,
null,
false,
{},
[],
-1,
0,
""
]
JavaScript (jsonpathly)
[
1,
3,
"nice",
true,
null,
false,
{},
[],
-1,
0,
""
]
Java (com.github.jsurfer)
Not supported
line 1:4 no viable alternative at input 'true'
org.antlr.v4.runtime.misc.ParseCancellationException
Java (com.github.xmljacquard.ajp)
Not supported
Error at char 18 in expression in xsl:sequence/@select on line 20 column 67 of ajp-runner.xslt:
<failed xmlns:ixml="http://invisiblexml.org/NS"
ixml:state="failed"><line>1</line><column>9</column><pos>9</pos><unexpected>)</unexpected><permitted>#9, #A, #D, ' ', '!', '<', '=', '>', '_', ['0'-'9'], ['a'-'z']</permitted><completions><completed rule="true" start="5" end="8"><input>true</input></completed><completed rule="literal" start="5" end="8"><input>true</input></completed><completed rule="comparable" start="5" end="8"><input>true</input></completed><completed rule="function-name" start="5" end="8"><input>true</input></completed></completions><could-be-next><in rule="function-name-char"><tokens>'_'</tokens></in><in rule="comparison-op"><tokens>'!', '<', '=', '>'</tokens></in><in rule="DIGIT"><tokens>['0'-'9']</tokens></in><in rule="LCALPHA"><tokens>['a'-'z']</tokens></in><in rule="B"><tokens>#9, #A, #D, ' '</tokens></in></could-be-next><unfinished><open rule="comparison-expr" start="5" end="8"><input>true</input></open><open rule="paren-expr" start="4" end="4"><input>(</input></open><open rule="filter-selector" start="3" end="3"><input>?</input></open><open rule="bracketed-selection" start="2" end="2"><input>[</input></open><open rule="jsonpath-query" start="1" end="1"><input>$</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>9</column><pos>9</pos><unexpected>)</unexpected><permitted>#9, #A, #D, ' ', '!', '<', '=', '>', '_', ['0'-'9'], ['a'-'z']</permitted><completions><completed rule="true" start="5" end="8"><input>true</input></completed><completed rule="literal" start="5" end="8"><input>true</input></completed><completed rule="comparable" start="5" end="8"><input>true</input></completed><completed rule="function-name" start="5" end="8"><input>true</input></completed></completions><could-be-next><in rule="function-name-char"><tokens>'_'</tokens></in><in rule="comparison-op"><tokens>'!', '<', '=', '>'</tokens></in><in rule="DIGIT"><tokens>['0'-'9']</tokens></in><in rule="LCALPHA"><tokens>['a'-'z']</tokens></in><in rule="B"><tokens>#9, #A, #D, ' '</tokens></in></could-be-next><unfinished><open rule="comparison-expr" start="5" end="8"><input>true</input></open><open rule="paren-expr" start="4" end="4"><input>(</input></open><open rule="filter-selector" start="3" end="3"><input>?</input></open><open rule="bracketed-selection" 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 supported
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.InvalidPathException: Expected path node
Kotlin (com.nfeld.jsonpathkt)
¹
Not supported
Unexpected char, char=?, index=2
Objective-C (SMJJSONPath)
¹
³
Not supported
path node expected
PHP (galbar-jsonpath)
[
1,
3,
"nice",
true,
null,
false,
[],
[],
-1,
0,
""
]
PHP (remorhaz-jsonpath)
[
1,
3,
"nice",
true,
null,
false,
{},
[],
-1,
0,
""
]
Python (jsonpath)
²
Not found
jsonpath returned false, this might indicate an error
Python (jsonpath-ng)
Not supported
JsonPathLexerError('Error on line 1, col 2: Unexpected character: ? ')
Python (jsonpath-rw)
Not supported
JsonPathLexerError('Error on line 1, col 2: Unexpected character: ? ')
Python (jsonpath2)
[
[
1,
3,
"nice",
true,
null,
false,
{},
[],
-1,
0,
""
]
]
Python (python-jsonpath)
Not supported
JSONPathSyntaxError('filter expression literals outside of function expressions must be compared')
Raku (JSON-Path)
Not supported
Evaluation of embedded Raku code not allowed (construct with :allow-eval)
Ruby (jsonpath)
[
1,
3,
"nice",
true,
{},
[],
-1,
0,
""
]
Rust (jsonpath)
Not supported
parsing error
Rust (jsonpath_lib)
Not supported
path error:
$[?(true)]
^^^^^^^^
Rust (jsonpath_plus)
[
1,
3,
"nice",
true,
null,
false,
{},
[],
-1,
0,
""
]
Rust (serde_json_path)
Not supported
at position 8, in long-hand segment, parser error
Scala (jsonpath)
Not supported
JPError(end of input expected)
Swift (Sextant)
Not supported
NOT_SUPPORTED
dotNET (Json.NET)
[
1,
3,
"nice",
true,
null,
false,
{},
[],
-1,
0,
""
]
dotNET (JsonCons.JsonPath)
[
1,
3,
"nice",
true,
null,
false,
{},
[],
-1,
0,
""
]
dotNET (JsonPath.Net)
Not supported
Pattern '?(true)]' not recognized.
dotNET (JsonPathLib)
[
1,
3,
"nice",
true,
null,
false,
{},
[],
-1,
0,
""
]
dotNET (Manatee.Json)
[
1,
3,
"nice",
true,
null,
false,
{},
[],
-1,
0,
""
]
Errors
JavaScript (json-p3)
filter expression literals (true) must be compared ('$[?(true)':4)
PHP (Goessner)
²
ArgumentCountError
PHP (softcreatr-jsonpath)
Error: 'Malformed filter query'
Perl (JSON-Path)
non-safe evaluation, died at main.pl line 11.
Footnotes
- ¹ This implementation returns a single value where only one match is possible (instead of an array of a single value).
- ² This implementation returns a specific not found value if no match exists.
- ³ This implementation returns a specific not found value if a query that would regularly return a single match results in no match.