System.JSON.TJSONPathParser.Create

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Delphi

constructor Create(const APath: string); overload;
constructor Create(const APathPtr: PChar; ALen: Integer); overload;

C++

__fastcall TJSONPathParser(const System::UnicodeString APath)/* overload */;
__fastcall TJSONPathParser(const System::WideChar * APathPtr, int ALen)/* overload */;
TJSONPathParser() {}

Properties

Type	Visibility	Source	Unit	Parent
constructor	public	System.JSON.pas System.JSON.hpp	System.JSON	TJSONPathParser

Description

Creates an instance of TJSONPathParser to iterate through the elements of the specified JSON path.

Supported JSON Path Syntax

TJSONPathParser implements a subset of the JSON path specification defined by Stefan Göessner. Specifically, supported elements are:

• Child operators for objects:
  • Use . to access object properties that do not contain a dot in their name. For example, use root.child to access the child property of the root object.
  • Use [] to access object properties that do contain a quoting character in their name. For example, use root['child.name'] or root["child.name"] to access the child.name property of the root object.
• Subscript operator ([]) for arrays. For example, use root[0] to access the first item of the root array.

These operators do not support special expressions, they only support actual values (object properties or array indexes).

See Also

• System.JSON.TJSONPathParser.Destroy

• System.JSON.TJSONPathParser.NextToken