(C++) Pretty Print JSON (Formatter, Beautifier)

Demonstrates how to emit JSON in a pretty, human-readable format with indenting of nested arrays and objects.

Chilkat C/C++ Library Downloads
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#include <CkJsonObject.h>

void ChilkatSample(void)
    {
    CkJsonObject json;

    const char *jsonStr = "{\"name\": \"donut\",\"image\":{\"fname\": \"donut.jpg\",\"w\": 200,\"h\": 200},\"thumbnail\":{\"fname\": \"donutThumb.jpg\",\"w\": 32,\"h\": 32}}";

    bool success = json.Load(jsonStr);
    if (success != true) {
        std::cout << json.lastErrorText() << "\r\n";
        return;
    }

    // To pretty-print, set the EmitCompact property equal to false
    json.put_EmitCompact(false);

    // If bare-LF line endings are desired, turn off EmitCrLf
    // Otherwise CRLF line endings are emitted.
    json.put_EmitCrLf(false);

    // Emit the formatted JSON:
    std::cout << json.emit() << "\r\n";
    }