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- Fixed mixed-up indentation 

git-svn-id: https://svn.apache.org/repos/asf/lucene/java/trunk@150268 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Otis Gospodnetic 2004-03-30 15:54:48 +00:00
parent 25f78d7cc2
commit 9f511ba6a0
3 changed files with 187 additions and 187 deletions
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57
src/java/org/apache/lucene/analysis/de/GermanStemFilter.java
View File

@ -43,8 +43,8 @@ public final class GermanStemFilter extends TokenFilter
public GermanStemFilter( TokenStream in )
{
super(in);
stemmer = new GermanStemmer();
super(in);
stemmer = new GermanStemmer();
}
/**
@ -53,9 +53,8 @@ public final class GermanStemFilter extends TokenFilter
*/
public GermanStemFilter( TokenStream in, Hashtable exclusiontable )
{
this( in );
exclusionSet = new HashSet(exclusiontable.keySet());
this( in );
exclusionSet = new HashSet(exclusiontable.keySet());
}
/**
@ -63,32 +62,32 @@ public final class GermanStemFilter extends TokenFilter
*/
public GermanStemFilter( TokenStream in, Set exclusionSet )
{
this( in );
this.exclusionSet = exclusionSet;
this( in );
this.exclusionSet = exclusionSet;
}
/**
* @return Returns the next token in the stream, or null at EOS
*/
public final Token next()
throws IOException
throws IOException
{
if ( ( token = input.next() ) == null ) {
return null;
}
// Check the exclusiontable
else if ( exclusionSet != null && exclusionSet.contains( token.termText() ) ) {
return token;
}
else {
String s = stemmer.stem( token.termText() );
// If not stemmed, dont waste the time creating a new token
if ( !s.equals( token.termText() ) ) {
return new Token( s, token.startOffset(),
token.endOffset(), token.type() );
}
return token;
}
if ( ( token = input.next() ) == null ) {
return null;
}
// Check the exclusiontable
else if ( exclusionSet != null && exclusionSet.contains( token.termText() ) ) {
return token;
}
else {
String s = stemmer.stem( token.termText() );
// If not stemmed, dont waste the time creating a new token
if ( !s.equals( token.termText() ) ) {
return new Token( s, token.startOffset(),
token.endOffset(), token.type() );
}
return token;
}
}
/**
@ -96,9 +95,9 @@ public final class GermanStemFilter extends TokenFilter
*/
public void setStemmer( GermanStemmer stemmer )
{
if ( stemmer != null ) {
this.stemmer = stemmer;
}
if ( stemmer != null ) {
this.stemmer = stemmer;
}
}
/**
@ -107,7 +106,7 @@ public final class GermanStemFilter extends TokenFilter
*/
public void setExclusionTable( Hashtable exclusiontable )
{
exclusionSet = new HashSet(exclusiontable.keySet());
exclusionSet = new HashSet(exclusiontable.keySet());
}
/**
@ -115,6 +114,6 @@ public final class GermanStemFilter extends TokenFilter
*/
public void setExclusionSet( Set exclusionSet )
{
this.exclusionSet = exclusionSet;
this.exclusionSet = exclusionSet;
}
}

311
src/java/org/apache/lucene/analysis/de/GermanStemmer.java
View File

@ -44,20 +44,20 @@ public class GermanStemmer
*/
protected String stem( String term )
{
// Use lowercase for medium stemming.
term = term.toLowerCase();
if ( !isStemmable( term ) )
return term;
// Reset the StringBuffer.
sb.delete( 0, sb.length() );
sb.insert( 0, term );
// Stemming starts here...
substitute( sb );
strip( sb );
optimize( sb );
resubstitute( sb );
removeParticleDenotion( sb );
return sb.toString();
// Use lowercase for medium stemming.
term = term.toLowerCase();
if ( !isStemmable( term ) )
return term;
// Reset the StringBuffer.
sb.delete( 0, sb.length() );
sb.insert( 0, term );
// Stemming starts here...
substitute( sb );
strip( sb );
optimize( sb );
resubstitute( sb );
removeParticleDenotion( sb );
return sb.toString();
}
/**
@ -67,10 +67,11 @@ public class GermanStemmer
*/
private boolean isStemmable( String term )
{
for ( int c = 0; c < term.length(); c++ ) {
if ( !Character.isLetter( term.charAt( c ) ) ) return false;
}
return true;
for ( int c = 0; c < term.length(); c++ ) {
if ( !Character.isLetter( term.charAt( c ) ) )
return false;
}
return true;
}
/**
@ -83,38 +84,38 @@ public class GermanStemmer
*/
private void strip( StringBuffer buffer )
{
boolean doMore = true;
while ( doMore && buffer.length() > 3 ) {
if ( ( buffer.length() + substCount > 5 ) &&
buffer.substring( buffer.length() - 2, buffer.length() ).equals( "nd" ) )
{
buffer.delete( buffer.length() - 2, buffer.length() );
}
else if ( ( buffer.length() + substCount > 4 ) &&
buffer.substring( buffer.length() - 2, buffer.length() ).equals( "em" ) ) {
buffer.delete( buffer.length() - 2, buffer.length() );
}
else if ( ( buffer.length() + substCount > 4 ) &&
buffer.substring( buffer.length() - 2, buffer.length() ).equals( "er" ) ) {
buffer.delete( buffer.length() - 2, buffer.length() );
}
else if ( buffer.charAt( buffer.length() - 1 ) == 'e' ) {
buffer.deleteCharAt( buffer.length() - 1 );
}
else if ( buffer.charAt( buffer.length() - 1 ) == 's' ) {
buffer.deleteCharAt( buffer.length() - 1 );
}
else if ( buffer.charAt( buffer.length() - 1 ) == 'n' ) {
buffer.deleteCharAt( buffer.length() - 1 );
}
// "t" occurs only as suffix of verbs.
else if ( buffer.charAt( buffer.length() - 1 ) == 't' ) {
buffer.deleteCharAt( buffer.length() - 1 );
}
else {
doMore = false;
}
}
boolean doMore = true;
while ( doMore && buffer.length() > 3 ) {
if ( ( buffer.length() + substCount > 5 ) &&
buffer.substring( buffer.length() - 2, buffer.length() ).equals( "nd" ) )
{
buffer.delete( buffer.length() - 2, buffer.length() );
}
else if ( ( buffer.length() + substCount > 4 ) &&
buffer.substring( buffer.length() - 2, buffer.length() ).equals( "em" ) ) {
buffer.delete( buffer.length() - 2, buffer.length() );
}
else if ( ( buffer.length() + substCount > 4 ) &&
buffer.substring( buffer.length() - 2, buffer.length() ).equals( "er" ) ) {
buffer.delete( buffer.length() - 2, buffer.length() );
}
else if ( buffer.charAt( buffer.length() - 1 ) == 'e' ) {
buffer.deleteCharAt( buffer.length() - 1 );
}
else if ( buffer.charAt( buffer.length() - 1 ) == 's' ) {
buffer.deleteCharAt( buffer.length() - 1 );
}
else if ( buffer.charAt( buffer.length() - 1 ) == 'n' ) {
buffer.deleteCharAt( buffer.length() - 1 );
}
// "t" occurs only as suffix of verbs.
else if ( buffer.charAt( buffer.length() - 1 ) == 't' ) {
buffer.deleteCharAt( buffer.length() - 1 );
}
else {
doMore = false;
}
}
}
/**
@ -123,15 +124,15 @@ public class GermanStemmer
*/
private void optimize( StringBuffer buffer )
{
// Additional step for female plurals of professions and inhabitants.
if ( buffer.length() > 5 && buffer.substring( buffer.length() - 5, buffer.length() ).equals( "erin*" ) ) {
buffer.deleteCharAt( buffer.length() -1 );
strip( buffer );
}
// Additional step for irregular plural nouns like "Matrizen -> Matrix".
if ( buffer.charAt( buffer.length() - 1 ) == ( 'z' ) ) {
buffer.setCharAt( buffer.length() - 1, 'x' );
}
// Additional step for female plurals of professions and inhabitants.
if ( buffer.length() > 5 && buffer.substring( buffer.length() - 5, buffer.length() ).equals( "erin*" ) ) {
buffer.deleteCharAt( buffer.length() -1 );
strip( buffer );
}
// Additional step for irregular plural nouns like "Matrizen -> Matrix".
if ( buffer.charAt( buffer.length() - 1 ) == ( 'z' ) ) {
buffer.setCharAt( buffer.length() - 1, 'x' );
}
}
/**
@ -139,14 +140,14 @@ public class GermanStemmer
*/
private void removeParticleDenotion( StringBuffer buffer )
{
if ( buffer.length() > 4 ) {
for ( int c = 0; c < buffer.length() - 3; c++ ) {
if ( buffer.substring( c, c + 4 ).equals( "gege" ) ) {
buffer.delete( c, c + 2 );
return;
}
}
}
if ( buffer.length() > 4 ) {
for ( int c = 0; c < buffer.length() - 3; c++ ) {
if ( buffer.substring( c, c + 4 ).equals( "gege" ) ) {
buffer.delete( c, c + 2 );
return;
}
}
}
}
/**
@ -161,64 +162,64 @@ public class GermanStemmer
*/
private void substitute( StringBuffer buffer )
{
substCount = 0;
for ( int c = 0; c < buffer.length(); c++ ) {
// Replace the second char of a pair of the equal characters with an asterisk
if ( c > 0 && buffer.charAt( c ) == buffer.charAt ( c - 1 ) ) {
buffer.setCharAt( c, '*' );
}
// Substitute Umlauts.
else if ( buffer.charAt( c ) == 'ä' ) {
buffer.setCharAt( c, 'a' );
}
else if ( buffer.charAt( c ) == 'ö' ) {
buffer.setCharAt( c, 'o' );
}
else if ( buffer.charAt( c ) == 'ü' ) {
buffer.setCharAt( c, 'u' );
}
// Take care that at least one character is left left side from the current one
if ( c < buffer.length() - 1 ) {
if ( buffer.charAt( c ) == 'ß' ) {
buffer.setCharAt( c, 's' );
buffer.insert( c + 1, 's' );
substCount++;
}
// Masking several common character combinations with an token
else if ( ( c < buffer.length() - 2 ) && buffer.charAt( c ) == 's' &&
buffer.charAt( c + 1 ) == 'c' && buffer.charAt( c + 2 ) == 'h' )
{
buffer.setCharAt( c, '$' );
buffer.delete( c + 1, c + 3 );
substCount =+ 2;
}
else if ( buffer.charAt( c ) == 'c' && buffer.charAt( c + 1 ) == 'h' ) {
buffer.setCharAt( c, '§' );
buffer.deleteCharAt( c + 1 );
substCount++;
}
else if ( buffer.charAt( c ) == 'e' && buffer.charAt( c + 1 ) == 'i' ) {
buffer.setCharAt( c, '%' );
buffer.deleteCharAt( c + 1 );
substCount++;
}
else if ( buffer.charAt( c ) == 'i' && buffer.charAt( c + 1 ) == 'e' ) {
buffer.setCharAt( c, '&' );
buffer.deleteCharAt( c + 1 );
substCount++;
}
else if ( buffer.charAt( c ) == 'i' && buffer.charAt( c + 1 ) == 'g' ) {
buffer.setCharAt( c, '#' );
buffer.deleteCharAt( c + 1 );
substCount++;
}
else if ( buffer.charAt( c ) == 's' && buffer.charAt( c + 1 ) == 't' ) {
buffer.setCharAt( c, '!' );
buffer.deleteCharAt( c + 1 );
substCount++;
}
}
}
substCount = 0;
for ( int c = 0; c < buffer.length(); c++ ) {
// Replace the second char of a pair of the equal characters with an asterisk
if ( c > 0 && buffer.charAt( c ) == buffer.charAt ( c - 1 ) ) {
buffer.setCharAt( c, '*' );
}
// Substitute Umlauts.
else if ( buffer.charAt( c ) == 'ä' ) {
buffer.setCharAt( c, 'a' );
}
else if ( buffer.charAt( c ) == 'ö' ) {
buffer.setCharAt( c, 'o' );
}
else if ( buffer.charAt( c ) == 'ü' ) {
buffer.setCharAt( c, 'u' );
}
// Take care that at least one character is left left side from the current one
if ( c < buffer.length() - 1 ) {
if ( buffer.charAt( c ) == 'ß' ) {
buffer.setCharAt( c, 's' );
buffer.insert( c + 1, 's' );
substCount++;
}
// Masking several common character combinations with an token
else if ( ( c < buffer.length() - 2 ) && buffer.charAt( c ) == 's' &&
buffer.charAt( c + 1 ) == 'c' && buffer.charAt( c + 2 ) == 'h' )
{
buffer.setCharAt( c, '$' );
buffer.delete( c + 1, c + 3 );
substCount =+ 2;
}
else if ( buffer.charAt( c ) == 'c' && buffer.charAt( c + 1 ) == 'h' ) {
buffer.setCharAt( c, '§' );
buffer.deleteCharAt( c + 1 );
substCount++;
}
else if ( buffer.charAt( c ) == 'e' && buffer.charAt( c + 1 ) == 'i' ) {
buffer.setCharAt( c, '%' );
buffer.deleteCharAt( c + 1 );
substCount++;
}
else if ( buffer.charAt( c ) == 'i' && buffer.charAt( c + 1 ) == 'e' ) {
buffer.setCharAt( c, '&' );
buffer.deleteCharAt( c + 1 );
substCount++;
}
else if ( buffer.charAt( c ) == 'i' && buffer.charAt( c + 1 ) == 'g' ) {
buffer.setCharAt( c, '#' );
buffer.deleteCharAt( c + 1 );
substCount++;
}
else if ( buffer.charAt( c ) == 's' && buffer.charAt( c + 1 ) == 't' ) {
buffer.setCharAt( c, '!' );
buffer.deleteCharAt( c + 1 );
substCount++;
}
}
}
}
/**
@ -228,35 +229,35 @@ public class GermanStemmer
*/
private void resubstitute( StringBuffer buffer )
{
for ( int c = 0; c < buffer.length(); c++ ) {
if ( buffer.charAt( c ) == '*' ) {
char x = buffer.charAt( c - 1 );
buffer.setCharAt( c, x );
}
else if ( buffer.charAt( c ) == '$' ) {
buffer.setCharAt( c, 's' );
buffer.insert( c + 1, new char[]{'c', 'h'}, 0, 2 );
}
else if ( buffer.charAt( c ) == '§' ) {
buffer.setCharAt( c, 'c' );
buffer.insert( c + 1, 'h' );
}
else if ( buffer.charAt( c ) == '%' ) {
buffer.setCharAt( c, 'e' );
buffer.insert( c + 1, 'i' );
}
else if ( buffer.charAt( c ) == '&' ) {
buffer.setCharAt( c, 'i' );
buffer.insert( c + 1, 'e' );
}
else if ( buffer.charAt( c ) == '#' ) {
buffer.setCharAt( c, 'i' );
buffer.insert( c + 1, 'g' );
}
else if ( buffer.charAt( c ) == '!' ) {
buffer.setCharAt( c, 's' );
buffer.insert( c + 1, 't' );
}
}
for ( int c = 0; c < buffer.length(); c++ ) {
if ( buffer.charAt( c ) == '*' ) {
char x = buffer.charAt( c - 1 );
buffer.setCharAt( c, x );
}
else if ( buffer.charAt( c ) == '$' ) {
buffer.setCharAt( c, 's' );
buffer.insert( c + 1, new char[]{'c', 'h'}, 0, 2 );
}
else if ( buffer.charAt( c ) == '§' ) {
buffer.setCharAt( c, 'c' );
buffer.insert( c + 1, 'h' );
}
else if ( buffer.charAt( c ) == '%' ) {
buffer.setCharAt( c, 'e' );
buffer.insert( c + 1, 'i' );
}
else if ( buffer.charAt( c ) == '&' ) {
buffer.setCharAt( c, 'i' );
buffer.insert( c + 1, 'e' );
}
else if ( buffer.charAt( c ) == '#' ) {
buffer.setCharAt( c, 'i' );
buffer.insert( c + 1, 'g' );
}
else if ( buffer.charAt( c ) == '!' ) {
buffer.setCharAt( c, 's' );
buffer.insert( c + 1, 't' );
}
}
}
}

2
src/java/org/apache/lucene/analysis/de/WordlistLoader.java
View File

@ -53,8 +53,8 @@ public class WordlistLoader {
String word = null;
while ((word = lnr.readLine()) != null) {
result.add(word.trim());
}
}
}
finally {
if (lnr != null)
lnr.close();