Beefy Boxes and Bandwidth Generously Provided by pair Networks
Clear questions and runnable code
get the best and fastest answer
 
PerlMonks  

Re: Proof of concept: File::Index

by ioannis (Abbot)
on May 13, 2006 at 04:16 UTC ( #549166=note: print w/replies, xml ) Need Help??


in reply to Proof of concept: File::Index

Instead of creating indexes, we could use the indexed array already available in BerkeleyDB using the recno structure; then, we walk along the cursor from any desired line_num. The database, of course, is always update-table.

This command constructs such Recno database from our given text file: cat foo.txt | db4.3_load -T -t recno bar.db

Although simple, the command above needs further refinement if we are unsatisfied with the default definition of newline, with the escaping of inserted text, or problems due to binary input. (See db4.3_load(1) )

Log In?
Username:
Password:

What's my password?
Create A New User
Domain Nodelet?
Node Status?
node history
Node Type: note [id://549166]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others taking refuge in the Monastery: (1)
As of 2023-06-03 02:24 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    How often do you go to conferences?






    Results (6 votes). Check out past polls.

    Notices?