seaching a file

[ruds]

Hi,
Is there a way for file searching in which i can find a string which
occurs after certain interval again in the file?
The file that i'm dealing with is in GB's so the searching has to be
fast.

 

[Knute Johnson]

Hi,
Is there a way for file searching in which i can find a string which
occurs after certain interval again in the file?
The file that i'm dealing with is in GB's so the searching has to be
fast.

Yes!

 

[Flo 'Irian' Schaetz]

And thus spoke ruds...

Is there a way for file searching in which i can find a string which
occurs after certain interval again in the file?
The file that i'm dealing with is in GB's so the searching has to be
fast.

http://www.nist.gov/dads/

Have fun. You're probably searching for a text searching algorithm like
Boyer-Moore, but as long as the description is as vague as that, I can't
say which one will be the best.

Flo

 

[Roedy Green]

Hi,
Is there a way for file searching in which i can find a string which
occurs after certain interval again in the file?
The file that i'm dealing with is in GB's so the searching has to be
fast.

Do a read starting at the offset, reading the entire file into ram.
See http://mindprod.com/applet/fileio.html for how.

Then use String.indexOf or a regex search . See
http://mindprod.com/jgloss/regex.html

 

[Roedy Green]

http://www.nist.gov/dads/

Have fun. You're probably searching for a text searching algorithm like
Boyer-Moore, but as long as the description is as vague as that, I can't
say which one will be the best.

see http://mindprod.com/jgloss/products.html#BOYER

 

[Flo 'Irian' Schaetz]

And thus spoke Roedy Green...

see http://mindprod.com/jgloss/products.html#BOYER

404

 

[Andrew Thompson]

And thus spoke Roedy Green...


404

I suspect Roedy actually meant..
<http://mindprod.com/products.html>, which leads to..
<http://mindprod.com/products1.html#BOYER>