toJsonImpl

private fn

void toJsonImpl(
       const  ref  CdmNode node,  ref  Appender!string app,  int  indent
)

@safe

Recursive JSON serialization implementation.

Writes the JSON representation of a CdmNode to the given appender. TAG nodes are serialized as objects with (#name, #ns, #values, and @attr keys).

`node`	The CdmNode to serialize.
`app`	Output string appender.
`indent`	Current indentation level. -1 means compact (no whitespace); >= 0 means pretty-print with 2-space indent per level.