public boolean addProtoParameters(VRML97ProtoParameterList paramList, VRML97ProtoTokenizer stream)
throws IOException {
stream.nextToken();
while (stream.ttype != StreamTokenizer.TT_EOF) {
if (stream.ttype == StreamTokenizer.TT_WORD) {
if (stream.sval.compareTo("[") == 0) break;
}
stream.nextToken();
}
if (stream.ttype == StreamTokenizer.TT_EOF) return false;
stream.nextToken();
while (stream.ttype != StreamTokenizer.TT_EOF) {
if (stream.ttype == StreamTokenizer.TT_WORD) {
String str = stream.sval;
if (str.compareTo("]") == 0) return true;
else if (isFieldName(str) == true) {
if (addProtoParameter(paramList, stream) == false) return false;
}
}
stream.nextToken();
}
return false;
}
public boolean hasProto(VRML97Proto proto, String value) throws IOException {
StringReader strReader = new StringReader(value);
VRML97ProtoTokenizer stream = new VRML97ProtoTokenizer(strReader);
stream.nextToken();
while (stream.ttype != StreamTokenizer.TT_EOF) {
if (stream.ttype == StreamTokenizer.TT_WORD) {
String token = stream.sval;
if (proto.hasParameter(token) == true) return true;
}
stream.nextToken();
}
return false;
}
public VRML97Proto createProto(VRML97ProtoTokenizer stream) throws IOException {
stream.nextToken();
String protoName = stream.sval;
Debug.message("PROTO");
Debug.message(" name = " + protoName);
VRML97Proto proto = new VRML97Proto(protoName);
if (addProtoParameters(proto.getParameterList(), stream) == false) return null;
int nest = 0;
stream.nextToken();
while (stream.ttype != StreamTokenizer.TT_EOF) {
if (stream.ttype == StreamTokenizer.TT_WORD) {
if (stream.sval.compareTo("{") == 0) {
nest++;
break;
}
}
stream.nextToken();
}
stream.nextToken();
while (stream.ttype != StreamTokenizer.TT_EOF && 0 < nest) {
switch (stream.ttype) {
case StreamTokenizer.TT_NUMBER:
double dvalue = stream.nval;
String valStr = number2String(dvalue);
proto.addToken(valStr);
break;
case StreamTokenizer.TT_WORD:
if (stream.sval.compareTo("{") == 0) nest++;
if (stream.sval.compareTo("}") == 0) nest--;
if (0 < nest) proto.addToken(stream.sval);
break;
case StreamTokenizer.TT_EOL:
proto.addToken("\n");
break;
}
stream.nextToken();
}
return proto;
}
public boolean addProtoParameter(VRML97ProtoParameterList paramList, VRML97ProtoTokenizer stream)
throws IOException {
stream.nextToken();
if (stream.ttype != StreamTokenizer.TT_WORD) return false;
String fieldName = stream.sval;
stream.nextToken();
if (stream.ttype != StreamTokenizer.TT_WORD) return false;
String name = stream.sval;
String value = getParameterValue(fieldName, stream);
if (name != null && value != null) {
// Debug.message(" " + fieldName + " " + name + " = " + value);
paramList.addParameter(fieldName, name, value);
return true;
}
return false;
}
public void replace(VRML97ProtoTokenizer stream, PrintWriter printStream) throws IOException {
int nToken = 0;
while (stream.nextToken() != StreamTokenizer.TT_EOF) {
switch (stream.ttype) {
case StreamTokenizer.TT_NUMBER:
{
double numValue = stream.nval;
printStream.print(number2String(numValue));
boolean isNextTokenFloatWorld = false;
stream.nextToken();
if (stream.ttype == StreamTokenizer.TT_WORD) {
String strToken = stream.sval;
if (strToken != null) {
if (strToken.startsWith("E") || strToken.startsWith("e")) {
if (isIntegerValue(numValue) == true) printStream.print(".0");
printStream.print(strToken);
isNextTokenFloatWorld = true;
}
}
}
if (isNextTokenFloatWorld == false) stream.pushBack();
printStream.print(" ");
nToken++;
}
break;
case StreamTokenizer.TT_WORD:
{
String strToken = stream.sval;
if (strToken.compareTo("PROTO") == 0) {
VRML97Proto proto = createProto(stream);
if (proto != null) {
addVRML97Proto(proto);
String protoString = proto.getString(null);
if (protoString != null) {
printStream.println(protoString);
}
}
} else if (strToken.compareTo("DEF") == 0) {
String nodeName = null;
stream.nextToken();
if (stream.ttype == StreamTokenizer.TT_WORD) nodeName = stream.sval;
if (nodeName != null && 0 < nodeName.length())
printStream.print("DEF " + nodeName + " ");
} else {
VRML97Proto proto = getVRML97Proto(strToken);
if (proto != null) {
String protoString = getVRML97ProtoString(proto, stream);
if (protoString != null) {
Debug.message(protoString);
printStream.println(protoString);
}
} else {
printStream.print(strToken + " ");
nToken++;
}
}
}
break;
case StreamTokenizer.TT_EOL:
if (0 < nToken) printStream.println("");
nToken = 0;
break;
}
}
if (printStream != null) {
printStream.flush();
printStream.close();
}
}
public String getVRML97ProtoString(VRML97Proto proto, VRML97ProtoTokenizer stream)
throws IOException {
VRML97ProtoParameterList paramList = new VRML97ProtoParameterList();
int indent = 0;
stream.nextToken();
while (stream.ttype != StreamTokenizer.TT_EOF) {
if (stream.ttype == StreamTokenizer.TT_WORD) {
if (stream.sval.compareTo("{") == 0) {
indent++;
break;
}
}
stream.nextToken();
}
if (stream.ttype == StreamTokenizer.TT_EOF) return null;
stream.nextToken();
while (stream.ttype != StreamTokenizer.TT_EOF) {
switch (stream.ttype) {
case StreamTokenizer.TT_WORD:
{
String strToken = stream.sval;
if (strToken.compareTo("{") == 0) indent++;
else if (strToken.compareTo("}") == 0) {
indent--;
if (indent == 0) return proto.getString(paramList);
} else {
String name = strToken;
VRML97ProtoParameter protoParam = proto.getParameter(name);
if (protoParam != null) {
String fieldTypeName = protoParam.getType();
String value = getParameterValue(fieldTypeName, stream);
if (hasProto(proto, value) == true) {
Debug.message("==== value ==== ");
Debug.message(value);
StringWriter strWriter = new StringWriter();
PrintWriter printWriter = new PrintWriter(strWriter);
StringReader strReader = new StringReader(value);
VRML97ProtoTokenizer valueStream = new VRML97ProtoTokenizer(strReader);
try {
replace(valueStream, printWriter);
strWriter.flush();
strWriter.close();
} catch (IOException e) {
}
value = strWriter.toString();
Debug.message("==== New value ==== ");
Debug.message(value);
}
paramList.addParameter(fieldTypeName, name, value);
}
}
}
break;
case StreamTokenizer.TT_EOL:
{
}
break;
}
stream.nextToken();
}
return null;
}
public String getParameterValue(String fieldName, VRML97ProtoTokenizer stream)
throws IOException {
if (fieldName.compareTo("SFBool") == 0) {
stream.nextToken();
String value = stream.sval;
return value;
} else if (fieldName.compareTo("SFFloat") == 0) {
stream.nextToken();
Double value = new Double(stream.nval);
return value.toString();
} else if (fieldName.compareTo("SFColor") == 0) {
stream.nextToken();
double r = stream.nval;
stream.nextToken();
double g = stream.nval;
stream.nextToken();
double b = stream.nval;
return r + " " + g + " " + b;
} else if (fieldName.compareTo("SFImage") == 0) { // Not supported
System.out.println("PROTO SFImage is not suppoted !!");
return null;
} else if (fieldName.compareTo("SFInt32") == 0) {
stream.nextToken();
Integer value = new Integer((int) stream.nval);
return value.toString();
} else if (fieldName.compareTo("SFString") == 0) {
stream.nextToken();
String value = stream.sval;
return value;
} else if (fieldName.compareTo("SFTime") == 0) {
stream.nextToken();
Double value = new Double(stream.nval);
return value.toString();
} else if (fieldName.compareTo("SFVec2f") == 0) {
stream.nextToken();
double x = stream.nval;
stream.nextToken();
double y = stream.nval;
return x + " " + y;
} else if (fieldName.compareTo("SFVec3f") == 0) {
stream.nextToken();
double x = stream.nval;
stream.nextToken();
double y = stream.nval;
stream.nextToken();
double z = stream.nval;
return x + " " + y + " " + z;
} else if (fieldName.compareTo("SFRotation") == 0) {
stream.nextToken();
double x = stream.nval;
stream.nextToken();
double y = stream.nval;
stream.nextToken();
double z = stream.nval;
stream.nextToken();
double r = stream.nval;
return x + " " + y + " " + z + " " + r;
} else if (fieldName.compareTo("SFNode") == 0) {
stream.nextToken();
String value = stream.sval;
return value;
} else if (isMField(fieldName) == true) {
int bigBracket = 0;
int smallBracket = 0;
StringBuffer value = new StringBuffer();
stream.nextToken();
while (stream.ttype != StreamTokenizer.TT_EOF) {
if (stream.ttype == StreamTokenizer.TT_EOL) {
if (bigBracket == 0 && smallBracket == 0) {
String appendedStr = value.toString();
if (0 < appendedStr.length()) return appendedStr;
return "[]";
}
value.append("\n");
}
if (stream.ttype == StreamTokenizer.TT_WORD) {
String str = stream.sval;
if (str.compareTo("[]") == 0) return new String("[]");
if (str.compareTo("[") == 0) {
bigBracket++;
value.append("[ ");
stream.nextToken();
break;
}
if (str.compareTo("{") == 0) {
smallBracket++;
value.append("{ ");
stream.nextToken();
break;
}
value.append(str + " ");
}
stream.nextToken();
}
while (stream.ttype != StreamTokenizer.TT_EOF) {
if (stream.ttype == StreamTokenizer.TT_WORD) {
String str = stream.sval;
if (str.compareTo("]") == 0) {
bigBracket--;
if (bigBracket == 0 && smallBracket == 0) {
value.append("]");
break;
}
}
if (str.compareTo("}") == 0) {
smallBracket--;
if (smallBracket == 0 && bigBracket == 0) {
value.append("}");
break;
}
}
if (str.compareTo("[") == 0) bigBracket++;
if (str.compareTo("{") == 0) smallBracket++;
value.append(str + " ");
}
if (stream.ttype == StreamTokenizer.TT_NUMBER) {
double dvalue = stream.nval;
String str = number2String(dvalue);
value.append(str + " ");
}
if (stream.ttype == StreamTokenizer.TT_EOL) {
value.append("\n");
}
stream.nextToken();
}
return value.toString();
}
return null;
}