Java 类org.antlr.v4.runtime.misc.Interval 实例源码

项目：elasticsearch_my 文件：EnhancedPainlessLexer.java

@Override
public void recover(final LexerNoViableAltException lnvae) {
    final CharStream charStream = lnvae.getInputStream();
    final int startIndex = lnvae.getStartIndex();
    final String text = charStream.getText(Interval.of(startIndex, charStream.index()));

    Location location = new Location(sourceName, _tokenStartCharIndex);
    String message = "unexpected character [" + getErrorDisplay(text) + "].";
    char firstChar = text.charAt(0);
    if ((firstChar == '\'' || firstChar == '"') && text.length() - 2 > 0 && text.charAt(text.length() - 2) == '\\') {
        /* Use a simple heuristic to guess if the unrecognized characters were trying to be a string but has a broken escape sequence.
         * If it was add an extra message about valid string escape sequences. */
        message += " The only valid escape sequences in strings starting with [" + firstChar + "] are [\\\\] and [\\"
                + firstChar + "].";
    }
    throw location.createError(new IllegalArgumentException(message, lnvae));
}

项目：ts-swift-transpiler 文件：SwiftSupport.java

/**
 "If an operator has whitespace on the right side only, it is treated as a
 postfix unary operator. As an example, the ++ operator in a++ b is treated
 as a postfix unary operator."
 "If an operator has no whitespace on the left but is followed immediately
 by a dot (.), it is treated as a postfix unary operator. As an example,
 the ++ operator in a++.b is treated as a postfix unary operator (a++ .b
 rather than a ++ .b)."
 */
public static boolean isPostfixOp(TokenStream tokens) {
    int stop = getLastOpTokenIndex(tokens);
    if ( stop==-1 ) return false;

    int start = tokens.index();
    Token prevToken = tokens.get(start-1); // includes hidden-channel tokens
    Token nextToken = tokens.get(stop+1);
    boolean prevIsWS = isLeftOperatorWS(prevToken);
    boolean nextIsWS = isRightOperatorWS(nextToken);
    boolean result =
        !prevIsWS && nextIsWS ||
        !prevIsWS && nextToken.getType()==SwiftParser.DOT;
    String text = tokens.getText(Interval.of(start, stop));
    //System.out.println("isPostfixOp: '"+prevToken+"','"+text+"','"+nextToken+"' is "+result);
    return result;
}

项目：swift-js-transpiler 文件：SwiftSupport.java

/**
 "If an operator has whitespace on the right side only, it is treated as a
 postfix unary operator. As an example, the ++ operator in a++ b is treated
 as a postfix unary operator."
 "If an operator has no whitespace on the left but is followed immediately
 by a dot (.), it is treated as a postfix unary operator. As an example,
 the ++ operator in a++.b is treated as a postfix unary operator (a++ .b
 rather than a ++ .b)."
 */
public static boolean isPostfixOp(TokenStream tokens) {
    int stop = getLastOpTokenIndex(tokens);
    if ( stop==-1 ) return false;

    int start = tokens.index();
    Token prevToken = tokens.get(start-1); // includes hidden-channel tokens
    Token nextToken = tokens.get(stop+1);
    boolean prevIsWS = isLeftOperatorWS(prevToken);
    boolean nextIsWS = isRightOperatorWS(nextToken);
    boolean result =
        !prevIsWS && nextIsWS ||
        !prevIsWS && nextToken.getType()==SwiftParser.DOT;
    String text = tokens.getText(Interval.of(start, stop));
    //System.out.println("isPostfixOp: '"+prevToken+"','"+text+"','"+nextToken+"' is "+result);
    return result;
}

项目：sonar-tsql-plugin 文件：Antlr4Utils.java

public static void print(final ParseTree node, final int level, CommonTokenStream stream) {
    final Interval sourceInterval = node.getSourceInterval();

    final Token firstToken = stream.get(sourceInterval.a);

    int line = firstToken.getLine();
    int charStart = firstToken.getCharPositionInLine();

    int endLine = line;
    int endChar = charStart + firstToken.getText().length();

    String data = "@(" + line + ":" + charStart + "," + endLine + ":" + endChar + ") with text: "
            + firstToken.getText();
    final int tmp = level + 1;
    final StringBuilder sb = new StringBuilder();
    sb.append(StringUtils.repeat("\t", level));
    sb.append(node.getClass().getSimpleName() + ": " + data + " :" + node.getText());
    System.out.println(sb.toString());
    final int n = node.getChildCount();
    for (int i = 0; i < n; i++) {

        final ParseTree c = node.getChild(i);
        print(c, tmp, stream);

    }
}

项目：ksql 文件：KsqlResource.java

public List<String> getStatementStrings(String ksqlString) {
  List<SqlBaseParser.SingleStatementContext> statementContexts =
      new KsqlParser().getStatements(ksqlString);
  List<String> result = new ArrayList<>(statementContexts.size());
  for (SqlBaseParser.SingleStatementContext statementContext : statementContexts) {
    // Taken from http://stackoverflow.com/questions/16343288/how-do-i-get-the-original-text-that-an-antlr4-rule-matched
    CharStream charStream = statementContext.start.getInputStream();
    result.add(
        charStream.getText(
            new Interval(
                statementContext.start.getStartIndex(),
                statementContext.stop.getStopIndex()
            )
        )
    );
  }
  return result;
}

项目：StreamCQL 文件：CQLErrorStrategy.java

@NotNull
private String getText(TokenStream tokens, Interval interval)
{
    int start = interval.a;
    int stop = interval.b;
    if (start < 0 || stop < 0)
        return "";

    if (stop >= tokens.size())
        stop = tokens.size() - 1;

    StringBuilder buf = new StringBuilder();
    for (int i = start; i <= stop; i++)
    {
        Token t = tokens.get(i);
        if (t.getType() == Token.EOF)
            break;
        buf.append(t.getText());
        if (i != stop)
        {
            buf.append(" ");
        }
    }
    return buf.toString();
}

项目：jetbrains-plugin-st4 文件：LexerErrorListener.java

@Override
    public void syntaxError(Recognizer<?, ?> recognizer,
                            Object offendingSymbol,
                            int line,
                            int charPositionInLine,
                            String msg,
                            RecognitionException e)
    {
        if ( offendingSymbol==null ) {
            final Lexer lexer = (Lexer) recognizer;
            int i = lexer.getCharIndex();
            final int n = lexer.getInputStream().size();
            if (i >= n) {
                i = n - 1;
            }
            final String text = lexer.getInputStream().getText(new Interval(i, i));
            CommonToken t = (CommonToken) lexer.getTokenFactory().create(Token.INVALID_TYPE, text);
            t.setStartIndex(i);
            t.setStopIndex(i);
            t.setLine(line);
            t.setCharPositionInLine(charPositionInLine);
            offendingSymbol = t;
        }
//      System.out.println("lex error: " + offendingSymbol);
        issues.add(new Issue(msg, (Token)offendingSymbol));
    }

项目：goworks 文件：GrammarLexer.java

@Override
public Token emit() {
    if (_type == ID) {
        String firstChar = _input.getText(Interval.of(_tokenStartCharIndex, _tokenStartCharIndex));
        if (Grammar.isTokenName(firstChar)) {
            _type = TOKEN_REF;
        } else {
            _type = RULE_REF;
        }

        if (_ruleType == Token.INVALID_TYPE) {
            _ruleType = _type;
        }
    } else if (_type == SEMI) {
        _ruleType = Token.INVALID_TYPE;
    }

    return super.emit();
}

项目：goworks 文件：IncrementRuleVersionAction.java

private void updateVersionNumber(TerminalNode currentVersionToken, final int newVersion) {
    Interval sourceInterval = ParseTrees.getSourceInterval(currentVersionToken);
    OffsetRegion region = OffsetRegion.fromBounds(sourceInterval.a, sourceInterval.b + 1);
    TrackingPositionRegion trackingRegion = _snapshot.createTrackingRegion(region, TrackingPositionRegion.Bias.Forward);
    final SnapshotPositionRegion currentRegion = trackingRegion.getRegion(_snapshot.getVersionedDocument().getCurrentSnapshot());
    final BaseDocument baseDocument = (BaseDocument)_snapshot.getVersionedDocument().getDocument();
    if (baseDocument == null) {
        throw new UnsupportedOperationException("No document available");
    }

    baseDocument.runAtomicAsUser(new Runnable() {

        @Override
        public void run() {
            try {
                baseDocument.remove(currentRegion.getStart().getOffset(), currentRegion.getLength());
                baseDocument.insertString(currentRegion.getStart().getOffset(), Integer.toString(newVersion), null);
            } catch (BadLocationException ex) {
                Exceptions.printStackTrace(ex);
            }
        }
    });
}

项目：goworks 文件：IncrementRuleVersionAction.java

@CheckForNull
@RuleDependency(recognizer=GrammarParser.class, rule=GrammarParser.RULE_parserRuleSpec, version=0, dependents=Dependents.SELF)
private static ParserRuleSpecContext findRuleForDescription(@NonNull Map<ParserRuleSpecContext, String> rules, @NonNull Description description) {
    for (Map.Entry<ParserRuleSpecContext, String> entry : rules.entrySet()) {
        if (!description.getName().equals(entry.getValue())) {
            continue;
        }

        Interval sourceInterval = ParseTrees.getSourceInterval(entry.getKey());
        if (sourceInterval.a <= description.getOffset() && sourceInterval.b >= description.getOffset()) {
            return entry.getKey();
        }
    }

    return null;
}