GPSD Message Modification Functions

gistfile1.md

• Force message
• Force but keep invalid. Also keep values that are out of bounds.
• Strip off fields that don't belong
• Complete a message by adding default fields that are missing
• Validates whether the fields and values are correct for a given message - returns boolean
• Import a message - decodes datetime fields to a datetime.datetime object, etc.
• Export a message - encodes datetime.datetime fields to a string, etc.
• Given a type, get a complete message that only contains default values.

Let validate failures raise exceptions in the reader that are caught by skip failures

Let the raw failed messages be written somewhere