Stemmer - Perl extension for stemming words using a modified version of the Stem routine from the SWISH search engine. (http://sunsite.berkeley.edu/SWISH-E/)
$stemmed_word = SwishStem( $word );
This module provides access to the Stem() function used in SWISH-E to stem words. This module is needed if you wish to highlight words in source documents.
Not that this module includes the stemmer.c function from the SWISH-E distribution. You should make sure that the stemmer.c file contained here is closely matched to the stemmer.c module in the SWISH-E distribution.
Also, there is a SWISH-E library that will contain the Stem() and SwishStem() functions. So you may be able to access that library instead of using this module. Check the SWISH-E discussion list for more info.
Purpose: Implementation of the Porter stemming algorithm documented
in: Porter, M.F., "An Algorithm For Suffix Stripping,"
Program 14 (3), July 1980, pp. 130-137.
Provenance: Written by B. Frakes and C. Cox, 1986.
Changed by C. Fox, 1990.
- made measure function a DFA
- restructured structs
- renamed functions and variables
- restricted function and variable scopes
Changed by C. Fox, July, 1991.
- added ANSI C declarations
- branch tested to 90% coverage
Notes: This code will make little sense without the the Porter
article. The stemming function converts its input to
Bill Moseley used the stemmer.c from the Swish-e distribution for this module.
To install SWISH::Stemmer, copy and paste the appropriate command in to your terminal.
perl -MCPAN -e shell
For more information on module installation, please visit the detailed CPAN module installation guide.