# Sablotron Guide and Reference

Errors and logs | .Implementation Notes
#### Summary Sablotron writes error and warning messages to stderr, and does no logging by default, but this behavior can be changed.
#### Description The name of the log file to be used can be specified with `SablotSetLog`. Besides, you can use `SablotRegHandler` to override the default message handling. The handler you register will receive all messages in a structured form that's easy to process and filter. For details, see `.Handlers`.
#### See Also
Groups | [ .Implementation Notes ]
Entries | [ .Handlers | SablotRegHandler | SablotSetLog ]

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revision 03-06-30
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