JsonReader unit

Event-based JSON reading with SAX-like parsing

The jsonreader unit provides event-based JSON reading functionality. It offers a SAX-like approach to JSON parsing where events are fired as JSON elements are encountered during parsing. This allows for efficient processing of large JSON documents without loading the entire structure into memory. The unit includes abstract base classes, event-driven readers, and interface-based consumers for flexible JSON processing.

Classes and records

`EJSONParser`	class	Exception class for JSON parsing errors
`IJSONConsumer`	interface	Interface for JSON data consumers
`TBaseJSONReader`	class	Abstract base class for JSON readers
`TJSONConsumerReader`	class	JSON reader that uses an IJSONConsumer for processing
`TJSONEventReader`	class	Event-based JSON reader that fires events for JSON elements

Types

`TOnJSONBoolean`	procedure type	Event handler for JSON boolean values
`TOnJSONFloat`	procedure type	Event handler for JSON floating-point values
`TOnJSONInt64`	procedure type	Event handler for JSON 64-bit integer values
`TOnJSONInteger`	procedure type	Event handler for JSON integer values
`TOnJSONKey`	procedure type	Event handler for JSON object key names
`TOnJSONQWord`	procedure type	Event handler for JSON unsigned quadword values
`TOnJSONString`	procedure type	Event handler for JSON string values

Topics

`JSONConsumerUsage`	topic	Using TJSONConsumerReader with IJSONConsumer interface
`JSONEventReaderUsage`	topic	Using TJSONEventReader for event-based JSON parsing
`JSONReaderStreamUsage`	topic	Using JSON readers with streams and files

Uses

An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.