Download Boyer 1.5
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Author: Canadian Mind Products
Support OS: Java, Linux, Mac OS X, Unix, Win2000, Win7 x32, Win7 x64, WinServer, WinVista, WinVista x64, WinXP
File size: 0.10 Mb
Price: 0.00$
Languages: English
Release date: 2007-05-21
Published: 2011-03-16
Support OS: Java, Linux, Mac OS X, Unix, Win2000, Win7 x32, Win7 x64, WinServer, WinVista, WinVista x64, WinXP
File size: 0.10 Mb
Price: 0.00$
Languages: English
Release date: 2007-05-21
Published: 2011-03-16
Fast string search (indexOf) using the Boyer-Moore
algorithm. Incorporate this class into your own Java
programs to rapidly search strings.
use:
import com.mindprod.Boyer.Boyer;
...
Boyer b = new Boyer("dogcatwombat");
int where = b.indexOf("cat");
or
int where = Boyer.indexOf("dogcatwombat", "cat");
Boyer-Moore is about twice as fast as String.indexOf when
the string you are searching in is 2K or over and the
pattern you are searching for is 4 characters or longer.
String.indexOf is particularly slow when the pattern begins
with a common letter such as "e". Boyer-Moore is fastest
when the pattern is long and composed only of uncommon
letters, e.g. "z" or "^". If you use a char[] instead of
String for your text to be searched, it will run an
additional 33% faster.
Boyer automatically reverts to String.indexOf when that
would be faster.
download
Download free version
Download free version
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