/** nextElement returns the next element in the enumeration. */
public Object nextElement() {
if (L.isEmpty()) throw new java.util.NoSuchElementException("No next element in Polylist");
Object result = L.first();
L = L.rest();
return result;
}
/**
* addSubBlocks / 3 Constructs the subblocks of a brick by reading in a PolyList and using a
* BrickLibrary to convert it to bricks with appropriate subbricks.
*
* @param contents, a PolyList of subbricks
* @param bricks, a BrickLibrary
*/
private void addSubBlocks(
Polylist contents, BrickLibrary bricks, LinkedHashMap<String, LinkedList<Polylist>> polymap) {
List<Block> subBlockList = new ArrayList<Block>();
while (contents.nonEmpty()) {
Object obj = contents.first();
contents = contents.rest();
if (obj instanceof Polylist) {
Polylist pList = (Polylist) obj;
String blockType = pList.first().toString();
pList = pList.rest();
// If a subblock is a brick, split it into components and then
// look up the corresponding brick in the library to construct
// the necessary new brick.
if (blockType.equals(BRICK_KEYWORD) && (pList.length() == 3 || pList.length() == 4)) {
// determine the information about the name, variant, etc.
String subBrickName = BrickLibrary.dashless(pList.first().toString());
pList = pList.rest();
String subBrickVariant = "";
if (pList.first() instanceof Polylist) {
subBrickVariant = ((Polylist) pList.first()).toStringSansParens();
pList = pList.rest();
}
String subBrickKeyString = pList.first().toString();
pList = pList.rest();
// Workaround added by RK for error reporting
// in case of missing duration in sub-brick
Object durObj = DEFAULT_SUBRICK_DURATION;
if (pList.isEmpty()) {
ErrorLog.log(
ErrorLog.WARNING, "Missing Sub-Brick Duration in " + subBrickName + ", using 1");
} else {
durObj = pList.first();
// pList = pList.rest();
}
// when all data members are initialized, find the correct
// brick scaled appropriately
boolean starFlag = isStar(durObj);
if (durObj instanceof Long || starFlag) {
int dur = starFlag ? 0 : Arith.long2int((Long) durObj);
long subBrickKeyNum = BrickLibrary.keyNameToNum(subBrickKeyString);
Brick subBrick = null;
// if the subbrick already exists in the dictionary
if (bricks.hasBrick(subBrickName)) {
if (!subBrickVariant.equals("")) {
subBrick = bricks.getBrick(subBrickName, subBrickVariant, subBrickKeyNum, dur);
} else {
subBrick = bricks.getBrick(subBrickName, subBrickKeyNum, dur);
}
}
// if the subbrick has yet to be initialized in the
// dictionary, make one to use for now
else if (polymap.containsKey(subBrickName)) {
// find the appropriate definition to use to assemble
// the subbrick
LinkedList<Polylist> tokenList = polymap.get(subBrickName);
Polylist tokens = null;
if (subBrickVariant.equals("")) {
tokens = tokenList.getFirst();
} else {
for (Polylist p : tokenList) {
Object variant = p.rest().rest().first();
if (variant instanceof Polylist
&& ((Polylist) variant).toStringSansParens().equals(subBrickVariant)) {
tokens = p;
break;
}
}
if (tokens == null) {
ErrorLog.log(
ErrorLog.SEVERE,
"Dictionary does not contain " + subBrickName + subBrickVariant);
}
}
// find the elements of the subbrick
String brickName = BrickLibrary.dashless(subBrickName);
tokens = tokens.rest();
tokens = tokens.rest();
String brickVariant = "";
if (tokens.first() instanceof Polylist) {
brickVariant = ((Polylist) tokens.first()).toStringSansParens();
tokens = tokens.rest();
}
String brickMode = tokens.first().toString();
tokens = tokens.rest();
String brickType = tokens.first().toString();
tokens = tokens.rest();
String brickKeyString = tokens.first().toString();
tokens = tokens.rest();
long brickKeyNum = BrickLibrary.keyNameToNum(brickKeyString);
// construct the subbrick
subBrick =
new Brick(
brickName,
brickVariant,
brickKeyNum,
brickType,
tokens,
bricks,
brickMode,
polymap);
subBrick.transpose(Arith.long2int(subBrickKeyNum - brickKeyNum));
subBrick.setDuration(dur);
} else {
ErrorLog.log(
ErrorLog.SEVERE, "Dictionary does " + "not contain " + subBrickName, true);
}
subBlockList.add(subBrick);
} else {
ErrorLog.log(
ErrorLog.FATAL, subBrickName + ": " + "Duration not of type long: " + obj, true);
}
}
// If a subblock is a chord, make an appropriate Chord object
else if (blockType.equals(CHORD_KEYWORD) && pList.length() == 2) {
String chordName = pList.first().toString();
pList = pList.rest();
Object durObj = pList.first();
// pList = pList.rest();
boolean starFlag = isStar(durObj);
if (durObj instanceof Long || starFlag) {
int dur = starFlag ? 0 : Arith.long2int((Long) durObj);
ChordBlock subBlockChord = new ChordBlock(chordName, dur);
subBlockList.add(subBlockChord);
} else {
ErrorLog.log(
ErrorLog.FATAL, chordName + ": " + "Duration not of type long: " + durObj, true);
}
} else {
ErrorLog.log(
ErrorLog.WARNING,
"Incorrect subblock of "
+ name
+ ": "
+ blockType
+ " "
+ pList.toStringSansParens());
}
}
}
subBlocks.addAll(subBlockList);
}