01-15-2009
Yeah, ..... will work for 5 digits/letters/zebras.. but just in case you want to get them from a file that has letters or other stuff..
egrep "[0-9]{5,}" FILE
I know it looks different, but I like to search for *exactly* what I am searching for, maybe I am just weird.
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LEARN ABOUT DEBIAN
plucene::analysis::porterstemfilter
Plucene::Analysis::PorterStemFilter(3pm) User Contributed Perl Documentation Plucene::Analysis::PorterStemFilter(3pm)
NAME
Plucene::Analysis::PorterStemFilter - Porter stemming on the token stream
SYNOPSIS
# isa Plucene::Analysis:::TokenFilter
my $token = $porter_stem_filter->next;
DESCRIPTION
This class transforms the token stream as per the Porter stemming algorithm.
Note: the input to the stemming filter must already be in lower case, so you will need to use LowerCaseFilter or LowerCaseTokenizer farther
down the Tokenizer chain in order for this to work properly!
The Porter Stemmer implements Porter Algorithm for normalization of English words by stripping their extensions and is used to generalize
the searches. For example, the Porter algorithm maps both 'search' and 'searching' (as well as 'searchnessing') to 'search' such that a
query for 'search' will also match documents that contains the word 'searching'.
Note that the Porter algorithm is specific to the English language and may give unpredictable results for other languages. Also, make sure
to use the same analyzer during the indexing and the searching.
You can find more information on the Porter algorithm at www.tartarus.org/~martin/PorterStemmer.
A nice online demonstration of the Porter algorithm is available at www.scs.carleton.ca/~dquesnel/java/stuff/PorterApplet.html.
METHODS
next
my $token = $porter_stem_filter->next;
Returns the next input token, after being stemmed.
perl v5.12.4 2011-08-14 Plucene::Analysis::PorterStemFilter(3pm)