/**
* Note - caller should reset {@link #_pointer} upon <code>null</code> result
*
* @return The sheet name as an identifier <code>null</code> if '!' is not found in the right
* place
*/
private SheetIdentifier parseSheetName() {
String bookName;
if (look == '[') {
StringBuilder sb = new StringBuilder();
GetChar();
while (look != ']') {
sb.append(look);
GetChar();
}
GetChar();
bookName = sb.toString();
} else {
bookName = null;
}
if (look == '\'') {
StringBuffer sb = new StringBuffer();
Match('\'');
boolean done = look == '\'';
while (!done) {
sb.append(look);
GetChar();
if (look == '\'') {
Match('\'');
done = look != '\'';
}
}
Identifier iden = new Identifier(sb.toString(), true);
// quoted identifier - can't concatenate anything more
SkipWhite();
if (look == '!') {
GetChar();
return new SheetIdentifier(bookName, iden);
}
return null;
}
// unquoted sheet names must start with underscore or a letter
if (look == '_' || Character.isLetter(look)) {
StringBuilder sb = new StringBuilder();
// can concatenate idens with dots
while (isUnquotedSheetNameChar(look)) {
sb.append(look);
GetChar();
}
SkipWhite();
if (look == '!') {
GetChar();
return new SheetIdentifier(bookName, new Identifier(sb.toString(), false));
}
return null;
}
return null;
}
/** Get a Number */
private String GetNum() {
StringBuffer value = new StringBuffer();
while (IsDigit(this.look)) {
value.append(this.look);
GetChar();
}
return value.length() == 0 ? null : value.toString();
}
private String parseStringLiteral() {
Match('"');
StringBuffer token = new StringBuffer();
while (true) {
if (look == '"') {
GetChar();
if (look != '"') {
break;
}
}
token.append(look);
GetChar();
}
return token.toString();
}
public String toString() {
StringBuffer sb = new StringBuffer(64);
sb.append(getClass().getName());
sb.append(" [");
if (_bookName != null) {
sb.append(" [").append(_sheetIdentifier.getName()).append("]");
}
if (_sheetIdentifier.isQuoted()) {
sb.append("'").append(_sheetIdentifier.getName()).append("'");
} else {
sb.append(_sheetIdentifier.getName());
}
sb.append("]");
return sb.toString();
}
public String toString() {
StringBuffer sb = new StringBuffer(64);
sb.append(getClass().getName());
sb.append(" [");
if (_isQuoted) {
sb.append("'").append(_name).append("'");
} else {
sb.append(_name);
}
sb.append("]");
return sb.toString();
}
/**
* Get a PTG for an integer from its string representation. return Int or Number Ptg based on size
* of input
*/
private static Ptg getNumberPtgFromString(String number1, String number2, String exponent) {
StringBuffer number = new StringBuffer();
if (number2 == null) {
number.append(number1);
if (exponent != null) {
number.append('E');
number.append(exponent);
}
String numberStr = number.toString();
int intVal;
try {
intVal = Integer.parseInt(numberStr);
} catch (NumberFormatException e) {
return new NumberPtg(numberStr);
}
if (IntPtg.isInRange(intVal)) {
return new IntPtg(intVal);
}
return new NumberPtg(numberStr);
}
if (number1 != null) {
number.append(number1);
}
number.append('.');
number.append(number2);
if (exponent != null) {
number.append('E');
number.append(exponent);
}
return new NumberPtg(number.toString());
}