Java Code Examples for org.antlr.v4.runtime.TokenSource#nextToken()

The following examples show how to use org.antlr.v4.runtime.TokenSource#nextToken() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: StatementSplitter.java    From presto with Apache License 2.0 6 votes vote down vote up 
public StatementSplitter(String sql, Set<String> delimiters)
{
    TokenSource tokens = getLexer(sql, delimiters);
    ImmutableList.Builder<Statement> list = ImmutableList.builder();
    StringBuilder sb = new StringBuilder();
    while (true) {
        Token token = tokens.nextToken();
        if (token.getType() == Token.EOF) {
            break;
        }
        if (token.getType() == SqlBaseParser.DELIMITER) {
            String statement = sb.toString().trim();
            if (!statement.isEmpty()) {
                list.add(new Statement(statement, token.getText()));
            }
            sb = new StringBuilder();
        }
        else {
            sb.append(token.getText());
        }
    }
    this.completeStatements = list.build();
    this.partialStatement = sb.toString().trim();
}
Example 2
Source File: StatementSplitter.java    From presto with Apache License 2.0 6 votes vote down vote up 
public static String squeezeStatement(String sql)
{
    TokenSource tokens = getLexer(sql, ImmutableSet.of());
    StringBuilder sb = new StringBuilder();
    while (true) {
        Token token = tokens.nextToken();
        if (token.getType() == Token.EOF) {
            break;
        }
        if (token.getType() == SqlBaseLexer.WS) {
            sb.append(' ');
        }
        else {
            sb.append(token.getText());
        }
    }
    return sb.toString().trim();
}
Example 3
Source File: StatementSplitter.java    From rainbow with Apache License 2.0 6 votes vote down vote up 
public StatementSplitter(String sql, Set<String> delimiters)
{
    TokenSource tokens = getLexer(sql, delimiters);
    ImmutableList.Builder<Statement> list = ImmutableList.builder();
    StringBuilder sb = new StringBuilder();
    while (true) {
        Token token = tokens.nextToken();
        if (token.getType() == Token.EOF) {
            break;
        }
        if (token.getType() == SqlBaseParser.DELIMITER) {
            String statement = sb.toString().trim();
            if (!statement.isEmpty()) {
                list.add(new Statement(statement, token.getText()));
            }
            sb = new StringBuilder();
        }
        else {
            sb.append(token.getText());
        }
    }
    this.completeStatements = list.build();
    this.partialStatement = sb.toString().trim();
}
Example 4
Source File: StatementSplitter.java    From rainbow with Apache License 2.0 6 votes vote down vote up 
public static String squeezeStatement(String sql)
{
    TokenSource tokens = getLexer(sql, ImmutableSet.of());
    StringBuilder sb = new StringBuilder();
    while (true) {
        Token token = tokens.nextToken();
        if (token.getType() == Token.EOF) {
            break;
        }
        if (token.getType() == SqlBaseLexer.WS) {
            sb.append(' ');
        }
        else {
            sb.append(token.getText());
        }
    }
    return sb.toString().trim();
}
Example 5
Source File: StatementSplitter.java    From macrobase with Apache License 2.0 6 votes vote down vote up 
public StatementSplitter(String sql, Set<String> delimiters) {
    TokenSource tokens = getLexer(sql, delimiters);
    ImmutableList.Builder<Statement> list = ImmutableList.builder();
    StringBuilder sb = new StringBuilder();
    while (true) {
        Token token = tokens.nextToken();
        if (token.getType() == Token.EOF) {
            break;
        }
        if (token.getType() == SqlBaseParser.DELIMITER) {
            String statement = sb.toString().trim();
            if (!statement.isEmpty()) {
                list.add(new Statement(statement, token.getText()));
            }
            sb = new StringBuilder();
        } else {
            sb.append(token.getText());
        }
    }
    this.completeStatements = list.build();
    this.partialStatement = sb.toString().trim();
}
Example 6
Source File: StatementSplitter.java    From macrobase with Apache License 2.0 6 votes vote down vote up 
public static String squeezeStatement(String sql) {
    TokenSource tokens = getLexer(sql, ImmutableSet.of());
    StringBuilder sb = new StringBuilder();
    while (true) {
        Token token = tokens.nextToken();
        if (token.getType() == Token.EOF) {
            break;
        }
        if (token.getType() == SqlBaseLexer.WS) {
            sb.append(' ');
        } else {
            sb.append(token.getText());
        }
    }
    return sb.toString().trim();
}
Example 7
Source File: InputHighlighter.java    From presto with Apache License 2.0 5 votes vote down vote up 
@Override
public AttributedString highlight(LineReader reader, String buffer)
{
    TokenSource tokens = StatementSplitter.getLexer(buffer, STATEMENT_DELIMITERS);
    AttributedStringBuilder builder = new AttributedStringBuilder();

    boolean error = false;
    while (true) {
        Token token = tokens.nextToken();
        int type = token.getType();
        if (type == Token.EOF) {
            break;
        }
        String text = token.getText();

        if (error || (type == SqlBaseLexer.UNRECOGNIZED)) {
            error = true;
            builder.styled(ERROR_STYLE, text);
        }
        else if (isKeyword(text)) {
            builder.styled(KEYWORD_STYLE, text);
        }
        else if (isString(type)) {
            builder.styled(STRING_STYLE, text);
        }
        else if (isNumber(type)) {
            builder.styled(NUMBER_STYLE, text);
        }
        else if (isComment(type)) {
            builder.styled(COMMENT_STYLE, text);
        }
        else {
            builder.append(text);
        }
    }

    return builder.toAttributedString();
}
Example 8
Source File: StatementSplitter.java    From presto with Apache License 2.0 5 votes vote down vote up 
public static boolean isEmptyStatement(String sql)
{
    TokenSource tokens = getLexer(sql, ImmutableSet.of());
    while (true) {
        Token token = tokens.nextToken();
        if (token.getType() == Token.EOF) {
            return true;
        }
        if (token.getChannel() != Token.HIDDEN_CHANNEL) {
            return false;
        }
    }
}
Example 9
Source File: StatementSplitter.java    From rainbow with Apache License 2.0 5 votes vote down vote up 
public static boolean isEmptyStatement(String sql)
{
    TokenSource tokens = getLexer(sql, ImmutableSet.of());
    while (true) {
        Token token = tokens.nextToken();
        if (token.getType() == Token.EOF) {
            return true;
        }
        if (token.getChannel() != Token.HIDDEN_CHANNEL) {
            return false;
        }
    }
}
Example 10
Source File: StatementSplitter.java    From macrobase with Apache License 2.0 5 votes vote down vote up 
public static boolean isEmptyStatement(String sql) {
    TokenSource tokens = getLexer(sql, ImmutableSet.of());
    while (true) {
        Token token = tokens.nextToken();
        if (token.getType() == Token.EOF) {
            return true;
        }
        if (token.getChannel() != Token.HIDDEN_CHANNEL) {
            return false;
        }
    }
}