Java Lexer.getTokenEnd方法代码示例

import com.intellij.lexer.Lexer; //导入方法依赖的package包/类
public static void addWordHonoringEscapeSequences(CharSequence editorText,
                                                  TextRange literalTextRange,
                                                  int cursorOffset,
                                                  Lexer lexer,
                                                  List<TextRange> result) {
  lexer.start(editorText, literalTextRange.getStartOffset(), literalTextRange.getEndOffset());

  while (lexer.getTokenType() != null) {
    if (lexer.getTokenStart() <= cursorOffset && cursorOffset < lexer.getTokenEnd()) {
      if (StringEscapesTokenTypes.STRING_LITERAL_ESCAPES.contains(lexer.getTokenType())) {
        result.add(new TextRange(lexer.getTokenStart(), lexer.getTokenEnd()));
      }
      else {
        TextRange word = getWordSelectionRange(editorText, cursorOffset, JAVA_IDENTIFIER_PART_CONDITION);
        if (word != null) {
          result.add(new TextRange(Math.max(word.getStartOffset(), lexer.getTokenStart()),
                                   Math.min(word.getEndOffset(), lexer.getTokenEnd())));
        }
      }
      break;
    }
    lexer.advance();
  }
}
 

import com.intellij.lexer.Lexer; //导入方法依赖的package包/类
@Override
@Nullable
public String parseScope(Lexer lexer) {
  if (lexer.getTokenType() != ScopeTokenTypes.IDENTIFIER) return null;
  String id = getTokenText(lexer);
  if (FilePatternPackageSet.SCOPE_FILE.equals(id)) {

    final CharSequence buf = lexer.getBufferSequence();
    final int end = lexer.getTokenEnd();
    final int bufferEnd = lexer.getBufferEnd();

    if (end >= bufferEnd || buf.charAt(end) != ':' && buf.charAt(end) != '[') {
      return null;
    }

    lexer.advance();
    return FilePatternPackageSet.SCOPE_FILE;
  }

  return null;
}
 

import com.intellij.lexer.Lexer; //导入方法依赖的package包/类
@Override
public String parseScope(final Lexer lexer) {
  if (lexer.getTokenType() != ScopeTokenTypes.IDENTIFIER) return PatternPackageSet.SCOPE_ANY;
  String id = getTokenText(lexer);
  String scope = PatternPackageSet.SCOPE_ANY;
  if (PatternPackageSet.SCOPE_SOURCE.equals(id)) {
    scope = PatternPackageSet.SCOPE_SOURCE;
  } else if (PatternPackageSet.SCOPE_TEST.equals(id)) {
    scope = PatternPackageSet.SCOPE_TEST;
  } else if (PatternPackageSet.SCOPE_PROBLEM.equals(id)) {
    scope = PatternPackageSet.SCOPE_PROBLEM;
  } else if (PatternPackageSet.SCOPE_LIBRARY.equals(id)) {
    scope = PatternPackageSet.SCOPE_LIBRARY;
  } else if (!id.trim().isEmpty()) {
    scope = null;
  }
  final CharSequence buf = lexer.getBufferSequence();
  int end = lexer.getTokenEnd();
  int bufferEnd = lexer.getBufferEnd();

  if (scope == PatternPackageSet.SCOPE_ANY || end >= bufferEnd || buf.charAt(end) != ':' && buf.charAt(end) != '[') {
    return PatternPackageSet.SCOPE_ANY;
  }

  if (scope != null) {
    lexer.advance();
  }

  return scope;
}
 

import com.intellij.lexer.Lexer; //导入方法依赖的package包/类
public static ParserDefinition.SpaceRequirements canStickTokensTogetherByLexer(ASTNode left, ASTNode right, Lexer lexer) {
  String textStr = left.getText() + right.getText();

  lexer.start(textStr, 0, textStr.length());
  if(lexer.getTokenType() != left.getElementType()) return ParserDefinition.SpaceRequirements.MUST;
  if(lexer.getTokenEnd() != left.getTextLength()) return ParserDefinition.SpaceRequirements.MUST;
  lexer.advance();
  if(lexer.getTokenEnd() != textStr.length()) return ParserDefinition.SpaceRequirements.MUST;
  if(lexer.getTokenType() != right.getElementType()) return ParserDefinition.SpaceRequirements.MUST;
  return ParserDefinition.SpaceRequirements.MAY;
}
 

import com.intellij.lexer.Lexer; //导入方法依赖的package包/类
protected OuterLanguageElementImpl createOuterLanguageElement(final Lexer lexer, final CharTable table,
                                                              @NotNull IElementType outerElementType) {
  final CharSequence buffer = lexer.getBufferSequence();
  final int tokenStart = lexer.getTokenStart();
  if (tokenStart < 0 || tokenStart > buffer.length()) {
    LOG.error("Invalid start: " + tokenStart + "; " + lexer);
  }
  final int tokenEnd = lexer.getTokenEnd();
  if (tokenEnd < 0 || tokenEnd > buffer.length()) {
    LOG.error("Invalid end: " + tokenEnd + "; " + lexer);
  }

  return new OuterLanguageElementImpl(outerElementType, table.intern(buffer, tokenStart, tokenEnd));
}
 

import com.intellij.lexer.Lexer; //导入方法依赖的package包/类
public static void doLexerTest(String text,
                               Lexer lexer,
                               boolean checkTokenText,
                               String... expectedTokens) {
  lexer.start(text);
  int idx = 0;
  int tokenPos = 0;
  while (lexer.getTokenType() != null) {
    if (idx >= expectedTokens.length) {
      StringBuilder remainingTokens = new StringBuilder("\"" + lexer.getTokenType().toString() + "\"");
      lexer.advance();
      while (lexer.getTokenType() != null) {
        remainingTokens.append(",");
        remainingTokens.append(" \"").append(checkTokenText ? lexer.getTokenText() : lexer.getTokenType().toString()).append("\"");
        lexer.advance();
      }
      fail("Too many tokens. Following tokens: " + remainingTokens.toString());
    }
    assertEquals("Token offset mismatch at position " + idx, tokenPos, lexer.getTokenStart());
    String tokenName = checkTokenText ? lexer.getTokenText() : lexer.getTokenType().toString();
    assertEquals("Token mismatch at position " + idx, expectedTokens[idx], tokenName);
    idx++;
    tokenPos = lexer.getTokenEnd();
    lexer.advance();
  }

  if (idx < expectedTokens.length) fail("Not enough tokens");
}
 

import com.intellij.lexer.Lexer; //导入方法依赖的package包/类
private static boolean lexemsEqual(final PsiClass classToBind, final PsiClass newClass) {
  Lexer oldTextLexer = JavaParserDefinition.createLexer(LanguageLevel.HIGHEST);
  Lexer newTextLexer = JavaParserDefinition.createLexer(LanguageLevel.HIGHEST);
  String oldBuffer = classToBind.getText();
  String newBuffer = newClass.getText();
  oldTextLexer.start(oldBuffer);
  newTextLexer.start(newBuffer);

  while(true) {
    IElementType oldLexem = oldTextLexer.getTokenType();
    IElementType newLexem = newTextLexer.getTokenType();
    if (oldLexem == null || newLexem == null) {
      // must terminate at the same time
      return oldLexem == null && newLexem == null;
    }
    if (oldLexem != newLexem) {
      return false;
    }
    if (oldLexem != TokenType.WHITE_SPACE && oldLexem != JavaDocElementType.DOC_COMMENT) {
      int oldStart = oldTextLexer.getTokenStart();
      int newStart = newTextLexer.getTokenStart();
      int oldLength = oldTextLexer.getTokenEnd() - oldTextLexer.getTokenStart();
      int newLength = newTextLexer.getTokenEnd() - newTextLexer.getTokenStart();
      if (oldLength != newLength) {
        return false;
      }
      for(int i=0; i<oldLength; i++) {
        if (oldBuffer.charAt(oldStart+i) != newBuffer.charAt(newStart+i)) {
          return false;
        }
      }
    }
    oldTextLexer.advance();
    newTextLexer.advance();
  }
}
 

import com.intellij.lexer.Lexer; //导入方法依赖的package包/类
private static String getTokenText(Lexer lexer) {
  int start = lexer.getTokenStart();
  int end = lexer.getTokenEnd();
  return lexer.getBufferSequence().subSequence(start, end).toString();
}
 

import com.intellij.lexer.Lexer; //导入方法依赖的package包/类
@NotNull
public TextChunk[] createTextChunks(@NotNull UsageInfo2UsageAdapter usageInfo2UsageAdapter,
                                    @NotNull CharSequence chars,
                                    int start,
                                    int end,
                                    boolean selectUsageWithBold,
                                    @NotNull List<TextChunk> result) {
  final Lexer lexer = myHighlighter.getHighlightingLexer();
  final SyntaxHighlighterOverEditorHighlighter highlighter = myHighlighter;

  LOG.assertTrue(start <= end);

  int i = StringUtil.indexOf(chars, '\n', start, end);
  if (i != -1) end = i;

  if (myDocumentStamp != myDocument.getModificationStamp()) {
    highlighter.restart(chars);
    myDocumentStamp = myDocument.getModificationStamp();
  } else if(lexer.getTokenType() == null || lexer.getTokenStart() > start) {
    highlighter.resetPosition(0);  // todo restart from nearest position with initial state
  }

  boolean isBeginning = true;

  for(;lexer.getTokenType() != null; lexer.advance()) {
    int hiStart = lexer.getTokenStart();
    int hiEnd = lexer.getTokenEnd();

    if (hiStart >= end) break;

    hiStart = Math.max(hiStart, start);
    hiEnd = Math.min(hiEnd, end);
    if (hiStart >= hiEnd) { continue; }

    if (isBeginning) {
      String text = chars.subSequence(hiStart, hiEnd).toString();
      if(text.trim().isEmpty()) continue;
    }
    isBeginning = false;
    IElementType tokenType = lexer.getTokenType();
    TextAttributesKey[] tokenHighlights = highlighter.getTokenHighlights(tokenType);

    processIntersectingRange(usageInfo2UsageAdapter, chars, hiStart, hiEnd, tokenHighlights, selectUsageWithBold, result);
  }

  return result.toArray(new TextChunk[result.size()]);
}
 

import com.intellij.lexer.Lexer; //导入方法依赖的package包/类
protected static boolean isMinified(Lexer lexer, ParserDefinition parserDefinition, TokenSet noWSRequireAfterTokenSet) {
  int offsetIgnoringComments = 0;
  int offsetIgnoringCommentsAndStrings = 0;
  int lineLength = 0;
  int unneededWhitespaceCount = 0;
  IElementType lastTokenType = null;
  TokenSet whitespaceTokens = parserDefinition.getWhitespaceTokens();
  TokenSet stringLiteralElements = parserDefinition.getStringLiteralElements();
  TokenSet commentTokens = parserDefinition.getCommentTokens();
  for (IElementType tokenType = lexer.getTokenType(); tokenType != null; lexer.advance(), tokenType = lexer.getTokenType()) {
    if (commentTokens.contains(tokenType)) {
      lastTokenType = tokenType;
      continue;
    }

    int tokenLength = lexer.getTokenEnd() - lexer.getTokenStart();
    offsetIgnoringComments += tokenLength;
    if (stringLiteralElements.contains(tokenType)) {
      lineLength += tokenLength;
      lastTokenType = tokenType;
      continue;
    }
    offsetIgnoringCommentsAndStrings += tokenLength;

    if (whitespaceTokens.contains(tokenType)) {
      if (!commentTokens.contains(lastTokenType) && tokenLength > 1) {
        lexer.advance();
        if (lexer.getTokenType() == null) {
          // it was last token
          break;
        } else {
          return false;
        }
      }

      if (lexer.getTokenText().contains("\n")) {
        if (lineLength > MIN_LINE_LENGTH) {
          break;
        }
        lineLength = 0;
      }

      if (" ".equals(lexer.getTokenText()) && noWSRequireAfterTokenSet.contains(lastTokenType)) {
        unneededWhitespaceCount++;
      }
    }
    else {
      lineLength += tokenLength;
    }

    if (offsetIgnoringComments >= MAX_OFFSET) {
      break;
    }
    lastTokenType = tokenType;
  }

  return offsetIgnoringComments >= MIN_SIZE &&
         (unneededWhitespaceCount + 0.0d) / offsetIgnoringCommentsAndStrings < MAX_UNNEEDED_OFFSET_PERCENTAGE;
}
 

import com.intellij.lexer.Lexer; //导入方法依赖的package包/类
public static boolean isCommentComplete(PsiComment comment, CodeDocumentationAwareCommenter commenter, Editor editor) {
  for (CommentCompleteHandler handler : Extensions.getExtensions(CommentCompleteHandler.EP_NAME)) {
    if (handler.isApplicable(comment, commenter)) {
      return handler.isCommentComplete(comment, commenter, editor);
    }
  }

  String commentText = comment.getText();
  final boolean docComment = isDocComment(comment, commenter);
  final String expectedCommentEnd = docComment ? commenter.getDocumentationCommentSuffix():commenter.getBlockCommentSuffix();
  if (!commentText.endsWith(expectedCommentEnd)) return false;

  final PsiFile containingFile = comment.getContainingFile();
  final Language language = containingFile.getLanguage();
  ParserDefinition parserDefinition = LanguageParserDefinitions.INSTANCE.forLanguage(language);
  if (parserDefinition == null) {
    return true;
  } 
  Lexer lexer = parserDefinition.createLexer(containingFile.getProject());
  final String commentPrefix = docComment? commenter.getDocumentationCommentPrefix() : commenter.getBlockCommentPrefix();
  lexer.start(commentText, commentPrefix == null? 0 : commentPrefix.length(), commentText.length());
  QuoteHandler fileTypeHandler = TypedHandler.getQuoteHandler(containingFile, editor);
  JavaLikeQuoteHandler javaLikeQuoteHandler = fileTypeHandler instanceof JavaLikeQuoteHandler ?
                                                           (JavaLikeQuoteHandler)fileTypeHandler:null;

  while (true) {
    IElementType tokenType = lexer.getTokenType();
    if (tokenType == null) {
      return false;
    }

    if (javaLikeQuoteHandler != null &&
        javaLikeQuoteHandler.getStringTokenTypes() != null &&
        javaLikeQuoteHandler.getStringTokenTypes().contains(tokenType)) {
      String text = commentText.substring(lexer.getTokenStart(), lexer.getTokenEnd());
      int endOffset = comment.getTextRange().getEndOffset();

      if (text.endsWith(expectedCommentEnd) &&
          endOffset < containingFile.getTextLength() &&
          containingFile.getText().charAt(endOffset) == '\n') {
        return true;
      }
    }
    if (tokenType == commenter.getDocumentationCommentTokenType() || tokenType == commenter.getBlockCommentTokenType()) {
      return false;
    }
    if (tokenType == commenter.getLineCommentTokenType() && lexer.getTokenText().contains(commentPrefix)) {
      return false;
    }
    if (lexer.getTokenEnd() == commentText.length()) {
      if (tokenType == commenter.getLineCommentTokenType()) {
        String prefix = commenter.getLineCommentPrefix();
        lexer.start(commentText, lexer.getTokenStart() + (prefix == null ? 0 : prefix.length()), commentText.length());
        lexer.advance();
        continue;
      }
      else if (isInvalidPsi(comment)) {
        return false;
      }
      return true;
    }
    lexer.advance();
  }
}