Java Token.getCharPositionInLine方法代碼示例

import org.antlr.runtime.Token; //導入方法依賴的package包/類
/**
 * Appends a query snippet to the message to help the user to understand the problem.
 *
 * @param from the first token to include within the snippet
 * @param to the last token to include within the snippet
 * @param offending the token which is responsible for the error
 */
final void appendSnippet(StringBuilder builder,
                         Token from,
                         Token to,
                         Token offending)
{
    if (!areTokensValid(from, to, offending))
        return;

    String[] lines = query.split("\n");

    boolean includeQueryStart = (from.getLine() == 1) && (from.getCharPositionInLine() == 0);
    boolean includeQueryEnd = (to.getLine() == lines.length)
            && (getLastCharPositionInLine(to) == lines[lines.length - 1].length());

    builder.append(" (");

    if (!includeQueryStart)
        builder.append("...");

    String toLine = lines[lineIndex(to)];
    int toEnd = getLastCharPositionInLine(to);
    lines[lineIndex(to)] = toEnd >= toLine.length() ? toLine : toLine.substring(0, toEnd);
    lines[lineIndex(offending)] = highlightToken(lines[lineIndex(offending)], offending);
    lines[lineIndex(from)] = lines[lineIndex(from)].substring(from.getCharPositionInLine());

    for (int i = lineIndex(from), m = lineIndex(to); i <= m; i++)
        builder.append(lines[i]);

    if (!includeQueryEnd)
        builder.append("...");

    builder.append(")");
}
 

import org.antlr.runtime.Token; //導入方法依賴的package包/類
SemanticException(IntStream input, Token token, String errorMessage, Object... messageArguments) {
    super();
    this.input = input;
    this.token = token;
    this.index = ((CommonToken)token).getStartIndex();
    this.line = token.getLine();
 this.charPositionInLine = token.getCharPositionInLine();
    this.errorMessage = String.format(errorMessage, messageArguments);
}
 

import org.antlr.runtime.Token; //導入方法依賴的package包/類
public GrammarSyntaxMessage(ErrorType etype,
							String fileName,
							Token offendingToken,
							RecognitionException antlrException,
							Object... args)
{
	super(etype, antlrException, offendingToken, args);
	this.fileName = fileName;
	this.offendingToken = offendingToken;
	if ( offendingToken!=null ) {
		line = offendingToken.getLine();
		charPosition = offendingToken.getCharPositionInLine();
	}
}
 

import org.antlr.runtime.Token; //導入方法依賴的package包/類
public GrammarSemanticsMessage(ErrorType etype,
                                 String fileName,
                                 Token offendingToken,
                                 Object... args)
  {
      super(etype,offendingToken,args);
      this.fileName = fileName;
if ( offendingToken!=null ) {
          line = offendingToken.getLine();
          charPosition = offendingToken.getCharPositionInLine();
      }
  }
 

import org.antlr.runtime.Token; //導入方法依賴的package包/類
public static String printTokenDetails(Token token)
{
    return token.getText() + " at line " + token.getLine() + " and position " + token.getCharPositionInLine();
}
 

import org.antlr.runtime.Token; //導入方法依賴的package包/類
/**
 * Checks that the specified token is valid.
 *
 * @param token the token to check
 * @return <code>true</code> if it is considered as valid, <code>false</code> otherwise.
 */
private static boolean isTokenValid(Token token)
{
    return token.getLine() > 0 && token.getCharPositionInLine() >= 0;
}
 

import org.antlr.runtime.Token; //導入方法依賴的package包/類
/**
 * Returns the index of the last character relative to the beginning of the line 0..n-1
 *
 * @param token the token
 * @return the index of the last character relative to the beginning of the line 0..n-1
 */
private static int getLastCharPositionInLine(Token token)
{
    return token.getCharPositionInLine() + getLength(token);
}