Examples of org.antlr.runtime.CharStream.substring()

org.antlr.runtime.CharStream.substring()
For infinite streams, you don't need this; primarily I'm providing a useful interface for action code. Just make sure actions don't use this on streams that don't support it.

    private String getCoreSQL(RuleReturnScope parsedSQL) {
        final CommonTree ast = (CommonTree) parsedSQL.getTree();
        final CommonToken nameToken = (CommonToken) ((CommonTree) ast.getChild(1)).getToken();
        final CharStream inputStream = nameToken.getInputStream();
        final CommonToken stopToken = (CommonToken) parsedSQL.getStop();
        return inputStream.substring(nameToken.getStartIndex(), stopToken.getStopIndex());
    }


    /**
     * @param i
     * @return

View Full Code Here

        final ParserRuleReturnScope parsedSql = alterTableDef.getParsedSql();
        final CommonTree ast = (CommonTree) parsedSql.getTree();
        final CommonToken stopToken = (CommonToken) parsedSql.getStop();
        final CommonToken nameToken = (CommonToken) ((CommonTree) ast.getChild(ast.getChildCount() - 1)).getToken();
        final CharStream inputStream = nameToken.getInputStream();
        return inputStream.substring(nameToken.getStartIndex(), stopToken.getStopIndex());
    }


    /**
     * @param sql
     * @param alterTableDef

View Full Code Here

        final CommonToken stopToken = (CommonToken) parsedSQL.getStop();


        final StringBuilder b = new StringBuilder();


        if (alterTableDef.getNewTableName() != null) {
            b.append(inputStream.substring(0, nameToken.getStartIndex() - 1));
            b.append(getAlterTableName(alterTableDef));
            b.append(inputStream.substring(nameToken.getStopIndex() + 1, stopToken.getStopIndex()));
        } else if (alterTableDef.getNewColumnDef() != null) {
            b.append(inputStream.substring(0, stopToken.getStartIndex() - 1));
            b.append(",").append(getAlterTableName(alterTableDef));

View Full Code Here

        final StringBuilder b = new StringBuilder();


        if (alterTableDef.getNewTableName() != null) {
            b.append(inputStream.substring(0, nameToken.getStartIndex() - 1));
            b.append(getAlterTableName(alterTableDef));
            b.append(inputStream.substring(nameToken.getStopIndex() + 1, stopToken.getStopIndex()));
        } else if (alterTableDef.getNewColumnDef() != null) {
            b.append(inputStream.substring(0, stopToken.getStartIndex() - 1));
            b.append(",").append(getAlterTableName(alterTableDef));
            b.append(inputStream.substring(stopToken.getStartIndex(), stopToken.getStopIndex()));
        } else {

View Full Code Here

        if (alterTableDef.getNewTableName() != null) {
            b.append(inputStream.substring(0, nameToken.getStartIndex() - 1));
            b.append(getAlterTableName(alterTableDef));
            b.append(inputStream.substring(nameToken.getStopIndex() + 1, stopToken.getStopIndex()));
        } else if (alterTableDef.getNewColumnDef() != null) {
            b.append(inputStream.substring(0, stopToken.getStartIndex() - 1));
            b.append(",").append(getAlterTableName(alterTableDef));
            b.append(inputStream.substring(stopToken.getStartIndex(), stopToken.getStopIndex()));
        } else {
            throw new SqlJetException("Wrong ALTER TABLE statement");
        }

View Full Code Here

            b.append(getAlterTableName(alterTableDef));
            b.append(inputStream.substring(nameToken.getStopIndex() + 1, stopToken.getStopIndex()));
        } else if (alterTableDef.getNewColumnDef() != null) {
            b.append(inputStream.substring(0, stopToken.getStartIndex() - 1));
            b.append(",").append(getAlterTableName(alterTableDef));
            b.append(inputStream.substring(stopToken.getStartIndex(), stopToken.getStopIndex()));
        } else {
            throw new SqlJetException("Wrong ALTER TABLE statement");
        }


        return b.toString();

View Full Code Here

        final CommonTree ast = (CommonTree) parsedSQL.getTree();
        final CommonToken nameToken = (CommonToken) ((CommonTree) ast.getChild(2)).getToken();
        final CharStream inputStream = nameToken.getInputStream();
        final CommonToken stopToken = (CommonToken) parsedSQL.getStop();
        final StringBuilder b = new StringBuilder();
        b.append(inputStream.substring(0, nameToken.getStartIndex() - 1));
        b.append(alterTableName);
        b.append(inputStream.substring(nameToken.getStopIndex() + 1, stopToken.getStopIndex()));
        return b.toString();
    }

View Full Code Here

        final CharStream inputStream = nameToken.getInputStream();
        final CommonToken stopToken = (CommonToken) parsedSQL.getStop();
        final StringBuilder b = new StringBuilder();
        b.append(inputStream.substring(0, nameToken.getStartIndex() - 1));
        b.append(alterTableName);
        b.append(inputStream.substring(nameToken.getStopIndex() + 1, stopToken.getStopIndex()));
        return b.toString();
    }


    private ParserRuleReturnScope parseSqlStatement(String sql) throws SqlJetException {
        try {

View Full Code Here

        return "";
      Token lastToken = (Token) tokens.get(tokens.size() - 1);
      if (lastToken instanceof CommonToken) {
        CommonToken commonStop = (CommonToken) lastToken;
        CharStream charStream = ((Lexer) tokenSource).getCharStream();
        String result = charStream.substring(0, commonStop.getStopIndex());
        return result;
      }
    }
    return super.toString();
  }

View Full Code Here

        /** Invoke lexer rule, and get the current index in CharStream */
        ruleName.invoke(lexObj, new Object[0]);
        Method ruleName2 = lexer.getMethod("getCharIndex", new Class[0]);
        int currentIndex = (Integer) ruleName2.invoke(lexObj, new Object[0]);
        if ( currentIndex!=input.size() ) {
            throw new RuntimeException("extra text found, '"+input.substring(currentIndex, input.size()-1)+"'");
//            System.out.println("extra text found, '"+input.substring(currentIndex, input.size()-1)+"'");
        }


        return result;
    }

View Full Code Here

0 1

TOP

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.