X-Git-Url: https://git.mdrn.pl/pylucene.git/blobdiff_plain/a2e61f0c04805cfcb8706176758d1283c7e3a55c..aaeed5504b982cf3545252ab528713250aa33eed:/lucene-java-3.4.0/lucene/src/java/org/apache/lucene/analysis/standard/UAX29URLEmailTokenizer.java diff --git a/lucene-java-3.4.0/lucene/src/java/org/apache/lucene/analysis/standard/UAX29URLEmailTokenizer.java b/lucene-java-3.4.0/lucene/src/java/org/apache/lucene/analysis/standard/UAX29URLEmailTokenizer.java deleted file mode 100644 index 4ff6b7f..0000000 --- a/lucene-java-3.4.0/lucene/src/java/org/apache/lucene/analysis/standard/UAX29URLEmailTokenizer.java +++ /dev/null @@ -1,255 +0,0 @@ -package org.apache.lucene.analysis.standard; - -/** - * Licensed to the Apache Software Foundation (ASF) under one or more - * contributor license agreements. See the NOTICE file distributed with - * this work for additional information regarding copyright ownership. - * The ASF licenses this file to You under the Apache License, Version 2.0 - * (the "License"); you may not use this file except in compliance with - * the License. You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -import java.io.IOException; -import java.io.InputStream; -import java.io.InputStreamReader; -import java.io.Reader; - -import org.apache.lucene.analysis.Tokenizer; -import org.apache.lucene.analysis.standard.std31.StandardTokenizerImpl31; -import org.apache.lucene.analysis.standard.std31.UAX29URLEmailTokenizerImpl31; -import org.apache.lucene.analysis.tokenattributes.OffsetAttribute; -import org.apache.lucene.analysis.tokenattributes.PositionIncrementAttribute; -import org.apache.lucene.analysis.tokenattributes.CharTermAttribute; -import org.apache.lucene.analysis.tokenattributes.TypeAttribute; -import org.apache.lucene.util.AttributeSource; -import org.apache.lucene.util.Version; -import org.apache.lucene.util.AttributeSource.AttributeFactory; - -/** - * This class implements Word Break rules from the Unicode Text Segmentation - * algorithm, as specified in - * Unicode Standard Annex #29 - * URLs and email addresses are also tokenized according to the relevant RFCs. - *

- * Tokens produced are of the following types: - *

- * - *

You must specify the required {@link Version} - * compatibility when creating UAX29URLEmailTokenizer: - *

- */ - -public final class UAX29URLEmailTokenizer extends Tokenizer { - /** A private instance of the JFlex-constructed scanner */ - private final StandardTokenizerInterface scanner; - - public static final int ALPHANUM = 0; - public static final int NUM = 1; - public static final int SOUTHEAST_ASIAN = 2; - public static final int IDEOGRAPHIC = 3; - public static final int HIRAGANA = 4; - public static final int KATAKANA = 5; - public static final int HANGUL = 6; - public static final int URL = 7; - public static final int EMAIL = 8; - - /** String token types that correspond to token type int constants */ - public static final String [] TOKEN_TYPES = new String [] { - StandardTokenizer.TOKEN_TYPES[StandardTokenizer.ALPHANUM], - StandardTokenizer.TOKEN_TYPES[StandardTokenizer.NUM], - StandardTokenizer.TOKEN_TYPES[StandardTokenizer.SOUTHEAST_ASIAN], - StandardTokenizer.TOKEN_TYPES[StandardTokenizer.IDEOGRAPHIC], - StandardTokenizer.TOKEN_TYPES[StandardTokenizer.HIRAGANA], - StandardTokenizer.TOKEN_TYPES[StandardTokenizer.KATAKANA], - StandardTokenizer.TOKEN_TYPES[StandardTokenizer.HANGUL], - "", - "", - }; - - /** Alphanumeric sequences - * @deprecated use {@link #TOKEN_TYPES} instead */ - @Deprecated - public static final String WORD_TYPE = TOKEN_TYPES[ALPHANUM]; - - /** Numbers - * @deprecated use {@link #TOKEN_TYPES} instead */ - @Deprecated - public static final String NUMERIC_TYPE = TOKEN_TYPES[NUM]; - - /** URLs with scheme: HTTP(S), FTP, or FILE; no-scheme URLs match HTTP syntax - * @deprecated use {@link #TOKEN_TYPES} instead */ - @Deprecated - public static final String URL_TYPE = TOKEN_TYPES[URL]; - - /** E-mail addresses - * @deprecated use {@link #TOKEN_TYPES} instead */ - @Deprecated - public static final String EMAIL_TYPE = TOKEN_TYPES[EMAIL]; - - /** - * Chars in class \p{Line_Break = Complex_Context} are from South East Asian - * scripts (Thai, Lao, Myanmar, Khmer, etc.). Sequences of these are kept - * together as as a single token rather than broken up, because the logic - * required to break them at word boundaries is too complex for UAX#29. - *

- * See Unicode Line Breaking Algorithm: http://www.unicode.org/reports/tr14/#SA - * @deprecated use {@link #TOKEN_TYPES} instead - */ - @Deprecated - public static final String SOUTH_EAST_ASIAN_TYPE = TOKEN_TYPES[SOUTHEAST_ASIAN]; - - /** @deprecated use {@link #TOKEN_TYPES} instead */ - @Deprecated - public static final String IDEOGRAPHIC_TYPE = TOKEN_TYPES[IDEOGRAPHIC]; - - /** @deprecated use {@link #TOKEN_TYPES} instead */ - @Deprecated - public static final String HIRAGANA_TYPE = TOKEN_TYPES[HIRAGANA]; - - /** @deprecated use {@link #TOKEN_TYPES} instead */ - @Deprecated - public static final String KATAKANA_TYPE = TOKEN_TYPES[KATAKANA]; - - /** @deprecated use {@link #TOKEN_TYPES} instead */ - @Deprecated - public static final String HANGUL_TYPE = TOKEN_TYPES[HANGUL]; - - private int maxTokenLength = StandardAnalyzer.DEFAULT_MAX_TOKEN_LENGTH; - - /** Set the max allowed token length. Any token longer - * than this is skipped. */ - public void setMaxTokenLength(int length) { - this.maxTokenLength = length; - } - - /** @see #setMaxTokenLength */ - public int getMaxTokenLength() { - return maxTokenLength; - } - - /** @deprecated use {@link #UAX29URLEmailTokenizer(Version, Reader)} instead. */ - @Deprecated - public UAX29URLEmailTokenizer(Reader input) { - this(Version.LUCENE_31, input); - } - - /** @deprecated use {@link #UAX29URLEmailTokenizer(Version, Reader)} instead. */ - @Deprecated - public UAX29URLEmailTokenizer(InputStream input) { - this(Version.LUCENE_31, new InputStreamReader(input)); - } - - /** @deprecated use {@link #UAX29URLEmailTokenizer(Version, AttributeSource, Reader)} instead. */ - @Deprecated - public UAX29URLEmailTokenizer(AttributeSource source, Reader input) { - this(Version.LUCENE_31, source, input); - } - - /** @deprecated use {@link #UAX29URLEmailTokenizer(Version, AttributeSource.AttributeFactory, Reader)} instead. */ - @Deprecated - public UAX29URLEmailTokenizer(AttributeFactory factory, Reader input) { - this(Version.LUCENE_31, factory, input); - } - - /** - * Creates a new instance of the UAX29URLEmailTokenizer. Attaches - * the input to the newly created JFlex scanner. - * - * @param input The input reader - */ - public UAX29URLEmailTokenizer(Version matchVersion, Reader input) { - super(input); - this.scanner = getScannerFor(matchVersion, input); - } - - /** - * Creates a new UAX29URLEmailTokenizer with a given {@link AttributeSource}. - */ - public UAX29URLEmailTokenizer(Version matchVersion, AttributeSource source, Reader input) { - super(source, input); - this.scanner = getScannerFor(matchVersion, input); - } - - /** - * Creates a new UAX29URLEmailTokenizer with a given {@link AttributeFactory} - */ - public UAX29URLEmailTokenizer(Version matchVersion, AttributeFactory factory, Reader input) { - super(factory, input); - this.scanner = getScannerFor(matchVersion, input); - } - - private static StandardTokenizerInterface getScannerFor(Version matchVersion, Reader input) { - if (matchVersion.onOrAfter(Version.LUCENE_34)) { - return new UAX29URLEmailTokenizerImpl(input); - } else { - return new UAX29URLEmailTokenizerImpl31(input); - } - } - - // this tokenizer generates three attributes: - // term offset, positionIncrement and type - private final CharTermAttribute termAtt = addAttribute(CharTermAttribute.class); - private final OffsetAttribute offsetAtt = addAttribute(OffsetAttribute.class); - private final PositionIncrementAttribute posIncrAtt = addAttribute(PositionIncrementAttribute.class); - private final TypeAttribute typeAtt = addAttribute(TypeAttribute.class); - - @Override - public final boolean incrementToken() throws IOException { - clearAttributes(); - int posIncr = 1; - - while(true) { - int tokenType = scanner.getNextToken(); - - if (tokenType == StandardTokenizerInterface.YYEOF) { - return false; - } - - if (scanner.yylength() <= maxTokenLength) { - posIncrAtt.setPositionIncrement(posIncr); - scanner.getText(termAtt); - final int start = scanner.yychar(); - offsetAtt.setOffset(correctOffset(start), correctOffset(start+termAtt.length())); - typeAtt.setType(TOKEN_TYPES[tokenType]); - return true; - } else - // When we skip a too-long term, we still increment the - // position increment - posIncr++; - } - } - - @Override - public final void end() { - // set final offset - int finalOffset = correctOffset(scanner.yychar() + scanner.yylength()); - offsetAtt.setOffset(finalOffset, finalOffset); - } - - @Override - public void reset(Reader reader) throws IOException { - super.reset(reader); - scanner.yyreset(reader); - } -}