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Published 50 days ago • verified publisherzuraffa.com
SDKDartFlutter
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A Dart port of JSONPath-Plus — full-featured JSONPath query engine with filter expressions, type operators, slices, and safe evaluation. Zero dependencies.

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1.1.0 #

  • Separated IndexExpr from MemberExpr — cleaner AST for computed property access (obj[key] vs obj.key), enabling bracket filter expressions and dynamic properties to work correctly alongside dot-notation member access.
  • Fixed reverse slice — $[::-1] now correctly returns elements in reverse order with proper start/end defaults for negative step.
  • Fixed backtick-escaped properties — $.book.`0` now correctly resolves literal property names.
  • Fixed !@ negation — standalone @ replacement now uses a proper lookahead regex so !@ correctly yields !_$_v for truthiness inversion.
  • Fixed typeof null — returns "null" (JSONPath-correct) instead of JS-style "undefined".
  • Zero failures — all 90 tests pass.

1.0.0 #

  • Initial release.
  • Full-featured JSONPath query engine ported from JSONPath-Plus.
  • Basic path syntax: dot notation, bracket notation, wildcards, recursive descent (..).
  • Filter expressions with @property, @parent, @root, @path and comparison operators.
  • Type operators: @string(), @number(), @boolean(), @integer(), @null(), @array(), @object(), @scalar(), @other().
  • ~ property-name operator: returns the key name instead of value.
  • ^ parent selector: returns the parent of the matched node.
  • Array slices: Python-style [start:end:step].
  • Dynamic properties: [(1+2)] evaluates to index 3.
  • Comma-separated keys: [0,1] selects multiple indices.
  • Backtick-escaped properties: `0` for literal property lookup.
  • Multiple result types: value, path, pointer, parent, parentProperty, all.
  • Safe expression evaluator with no dart:mirrors, no eval(), no external dependencies.
  • Sound null safety (Dart 3.x).

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verified publisherzuraffa.com

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Metadata

A Dart port of JSONPath-Plus — full-featured JSONPath query engine with filter expressions, type operators, slices, and safe evaluation. Zero dependencies.

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Topics

#json #jsonpath #query #expression #filter

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