protected Double readReal() throws IOException, HsqlException {
String s = readNumberField();
if (s == null) {
return null;
}
double i = JavaSystem.parseDouble(s);
if (tokenizer.isGetThis(Token.T_DIVIDE)) {
s = tokenizer.getString();
// parse simply to ensure it's a number
double ii = JavaSystem.parseDouble(s);
if (i == 0E0) {
i = Double.NaN;
} else if (i == -1E0) {
i = Double.NEGATIVE_INFINITY;
} else if (i == 1E0) {
i = Double.POSITIVE_INFINITY;
}
}
return ValuePool.getDouble(Double.doubleToLongBits(i));
}
protected String readField() throws IOException {
try {
tokenizer.getString();
if (statementType == ScriptReaderBase.DELETE_STATEMENT) {
tokenizer.getString();
tokenizer.getString();
}
String s = tokenizer.getString();
if (tokenizer.getType() == Types.SQL_ALL_TYPES) {
s = null;
}
return s;
} catch (HsqlException e) {
throw new IOException(e.getMessage());
}
}
public void setSource(String text) throws HsqlException {
tokenizer.reset(text);
statementType = ScriptReaderBase.ANY_STATEMENT;
String s = tokenizer.getString();
if (s.equals(Token.T_INSERT)) {
statementType = ScriptReaderBase.INSERT_STATEMENT;
tokenizer.getString();
tableName = tokenizer.getString();
tokenizer.getString();
} else if (s.equals(Token.T_DELETE)) {
statementType = ScriptReaderBase.DELETE_STATEMENT;
tokenizer.getString();
tableName = tokenizer.getString();
} else if (s.equals(Token.T_COMMIT)) {
statementType = ScriptReaderBase.COMMIT_STATEMENT;
} else if (s.equals(Token.T_SET)) {
if (tokenizer.isGetThis(Token.T_SCHEMA)) {
schemaName = tokenizer.getSimpleName();
statementType = ScriptReaderBase.SCHEMA_STATEMENT;
}
}
}