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| package net.sourceforge.pmd.cpd; |
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| import net.sourceforge.pmd.TargetJDK1_4; |
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| import net.sourceforge.pmd.ast.JavaParserConstants; |
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| import net.sourceforge.pmd.ast.JavaParserTokenManager; |
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| import net.sourceforge.pmd.ast.Token; |
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| import java.io.StringReader; |
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| import java.util.Properties; |
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| public class JavaTokenizer implements Tokenizer { |
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| public static final String IGNORE_LITERALS = "ignore_literals"; |
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| public static final String IGNORE_IDENTIFIERS = "ignore_identifiers"; |
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| private boolean ignoreLiterals; |
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| private boolean ignoreIdentifiers; |
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| public void setProperties(Properties properties) {
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| ignoreLiterals = Boolean.valueOf(properties.getProperty(IGNORE_LITERALS, "false")).booleanValue();
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| ignoreIdentifiers = Boolean.valueOf(properties.getProperty(IGNORE_IDENTIFIERS, "false")).booleanValue();
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| } |
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| public void tokenize(SourceCode tokens, Tokens tokenEntries) {
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| StringBuffer buffer = tokens.getCodeBuffer();
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| JavaParserTokenManager tokenMgr = new TargetJDK1_4().createJavaParserTokenManager(new StringReader(buffer.toString()));
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| Token currentToken = tokenMgr.getNextToken();
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| boolean inDiscardingState = false;
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| while (currentToken.image.length() > 0) {
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| if (currentToken.kind == JavaParserConstants.IMPORT || currentToken.kind == JavaParserConstants.PACKAGE) {
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| inDiscardingState = true;
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| currentToken = tokenMgr.getNextToken();
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| continue;
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| } |
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| if (inDiscardingState && currentToken.kind == JavaParserConstants.SEMICOLON) {
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| inDiscardingState = false;
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| } |
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| if (inDiscardingState) {
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| currentToken = tokenMgr.getNextToken();
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| continue;
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| } |
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| if (currentToken.kind != JavaParserConstants.SEMICOLON) {
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| String image = currentToken.image;
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| if (ignoreLiterals && (currentToken.kind == JavaParserConstants.STRING_LITERAL || currentToken.kind == JavaParserConstants.CHARACTER_LITERAL
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| || currentToken.kind == JavaParserConstants.DECIMAL_LITERAL || currentToken.kind == JavaParserConstants.FLOATING_POINT_LITERAL)) { |
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| image = String.valueOf(currentToken.kind);
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| } |
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| if (ignoreIdentifiers && currentToken.kind == JavaParserConstants.IDENTIFIER) {
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| image = String.valueOf(currentToken.kind);
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| } |
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| tokenEntries.add(new TokenEntry(image, tokens.getFileName(), currentToken.beginLine));
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| } |
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| currentToken = tokenMgr.getNextToken();
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| } |
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| tokenEntries.add(TokenEntry.getEOF());
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| } |
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| public void setIgnoreLiterals(boolean ignore) {
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| this.ignoreLiterals = ignore;
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| } |
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| public void setIgnoreIdentifiers(boolean ignore) {
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| this.ignoreIdentifiers = ignore;
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| } |
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| } |