Beefy Boxes and Bandwidth Generously Provided by pair Networks
Do you know where your variables are?

Re: Thoughts on designing a file format.

by bsb (Priest)
on Sep 13, 2005 at 02:45 UTC ( #491446=note: print w/replies, xml ) Need Help??

in reply to Thoughts on designing a file format.

Nice post. I've learnt too many of these the hard way with inherited formats. In particular, one format lacked easily identifiable record types so the a record's subtype may depend on the first field or the first and second, the length of the second depending on the first...

Other thoughts:

  • Dependency ordered records, that is parents before their children.
  • Count, checksum or hash at the end (I think a line count gives a false sense of protection from corruption).
  • The two points above make file processing more streamable.
  • Consider specifying character encodings.
  • Don't be cryptic to save characters, have a plain text format and zip it.
See also the Art of Unix Programming
  • Comment on Re: Thoughts on designing a file format.

Log In?

What's my password?
Create A New User
Domain Nodelet?
Node Status?
node history
Node Type: note [id://491446]
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others imbibing at the Monastery: (7)
As of 2023-01-31 12:55 GMT
Find Nodes?
    Voting Booth?

    No recent polls found