/**
* Returns the index with which to start parsing the next part of the string, once this method is
* done with its part
*/
private int parseDuration(
String s, int index, NoteContext noteContext, StaccatoParserContext parserContext) {
if (index < s.length()) {
switch (s.charAt(index)) {
case '/':
index = parseNumericDuration(s, index, noteContext);
break;
case 'W':
case 'H':
case 'Q':
case 'I':
case 'S':
case 'T':
case 'X':
case 'O':
case '-':
index = parseLetterDuration(s, index, noteContext, parserContext);
break;
default:
noteContext.decimalDuration =
DefaultNoteSettingsManager.getInstance().getDefaultDuration();
noteContext.isDurationExplicitlySet = false;
break; // Could get here if the next character is a velocity char ("a" or "d")
}
index = parseTuplet(s, index, noteContext);
} else {
noteContext.decimalDuration = DefaultNoteSettingsManager.getInstance().getDefaultDuration();
noteContext.isDurationExplicitlySet = false;
}
logger.info("Decimal duration is " + noteContext.decimalDuration);
return index;
}
/**
* Returns the index with which to start parsing the next part of the string, once this method is
* done with its part
*/
private int parseNumericDuration(String s, int index, NoteContext context) {
// The duration has come in as a number, like 0.25 for a quarter note.
// Advance pointer past the initial slash (/)
index++;
// If first character before the numeric value is a dash, we're ending a tie
if (s.charAt(index) == '-') {
context.isEndOfTie = true;
index++;
}
context.isDurationExplicitlySet = true;
// Get the duration value
int endingIndex = seekToEndOfDecimal(s, index);
String durationNumberString = s.substring(index, endingIndex);
context.decimalDuration += Double.parseDouble(durationNumberString);
logger.info("Decimal duration is " + context.decimalDuration);
index = endingIndex;
// If the character after all of the value parsing is a dash, we're starting a tie
if ((index < s.length()) && (s.charAt(index) == '-')) {
context.isStartOfTie = true;
index++;
}
return index;
}
private int parseNoteElement(String s, int index, StaccatoParserContext parserContext) {
boolean repeat = false;
NoteContext noteContext = new NoteContext();
do {
// Begin the voyage of creating a note by populating the NoteContext
index = parseNoteElement(s, index, noteContext, parserContext);
if (noteContext.isChord) {
Chord chord = noteContext.createChord(parserContext);
parserContext.getParser().fireChordParsed(chord);
} else {
Note note = noteContext.createNote(parserContext);
parserContext.getParser().fireNoteParsed(note);
}
// // If the note is a chord, fire all the note events for each note in the chord
// if (noteContext.isChord) {
// Note[] notes = new Chord(note, noteContext.intervals).getNotes();
// for (int i=1; i < notes.length; i++) {
// NoteContext context2 = noteContext.createChordNoteContext();
// context2.noteNumber = notes[i].getValue();
// logger.info("Next note in chord is "+context2.noteNumber);
// parserContext.fireNoteParsed(context2.createNote(parserContext));
// }
// }
// Determine if there is another note to parse, and set up the next NoteContext
repeat = noteContext.thereIsAnother;
noteContext = noteContext.createNextNoteContext();
} while (repeat);
return index;
}
/**
* Must be called (instead of the constructor) for notes other than the first note being parsed
*
* @return
*/
public NoteContext createNextNoteContext() {
NoteContext noteContext = new NoteContext();
noteContext.isFirstNote = false;
noteContext.isMelodicNote = anotherNoteIsMelodic;
noteContext.isHarmonicNote = anotherNoteIsHarmonic;
return noteContext;
}
/**
* Returns the index with which to start parsing the next part of the string, once this method is
* done with its part
*/
private int parseChord(String s, int index, NoteContext context) {
// Don't parse chord for a rest
if (context.isRest) {
return index;
}
int lengthOfChordString = 0;
boolean chordFound = false;
String[] chordNames = Chord.getChordNames();
for (String chordName : chordNames) {
if (!chordFound
&& (s.length() >= index + chordName.length())
&& chordName.equals(s.substring(index, index + chordName.length()))) {
chordFound = true;
lengthOfChordString = chordName.length();
context.isChord = true;
context.intervals = Chord.getIntervals(chordName);
context.chordName = chordName;
logger.info(
"Chord: " + chordName + " Interval Pattern: " + Chord.getIntervals(chordName));
break;
}
}
return index + lengthOfChordString;
}
//
// Methods from NoteProvider
//
@Override
public Note createNote(String noteString) {
StaccatoParserContext parserContext = new StaccatoParserContext(new StaccatoParser());
NoteContext noteContext = new NoteContext();
parseNoteElement(noteString, 0, noteContext, parserContext);
return noteContext.createNote(parserContext);
}
public NoteContext createChordNoteContext() {
NoteContext noteContext = new NoteContext();
noteContext.isFirstNote = false;
noteContext.isMelodicNote = false;
noteContext.isHarmonicNote = true;
noteContext.decimalDuration = decimalDuration;
return noteContext;
}
private int parseBracketedNote(String s, int index, NoteContext context) {
int indexOfEndBracket = s.indexOf(']', index);
String stringInBrackets = s.substring(index + 1, indexOfEndBracket);
context.noteValueAsString = stringInBrackets;
context.isNumericNote = true;
logger.info(
"This note is a note represented by the dictionary value " + context.noteValueAsString);
return indexOfEndBracket + 1;
}
/**
* Returns the index with which to start parsing the next part of the string, once this method is
* done with its part
*/
private int parseOctave(String s, int index, NoteContext context) {
context.isOctaveExplicitlySet = false;
// Don't parse an octave for a rest or a numeric note
if (context.isRest || context.isNumericNote) {
return index;
}
// Check for octave. Remember that octaves are optional.
// Octaves can be two digits, which is what this next bit is testing for.
// But, there could be no octave here as well.
char possibleOctave1 = '.';
char possibleOctave2 = '.';
if (index < s.length()) {
possibleOctave1 = s.charAt(index);
}
if (index + 1 < s.length()) {
possibleOctave2 = s.charAt(index + 1);
}
byte definiteOctaveLength = 0;
if ((possibleOctave1 >= '0') && (possibleOctave1 <= '9')) {
definiteOctaveLength = 1;
if (possibleOctave2 == '0') {
definiteOctaveLength = 2;
}
// if ((possibleOctave1 == '-') && (definiteOctaveLength == 1)) {
// // That '-' isn't representing a -1 octave, it's probably representing the
// end of a tie!
// // It's a duration character, not an octave character!
// return index;
// }
logger.info("Octave is " + definiteOctaveLength + " digits long");
String octaveNumberString = s.substring(index, index + definiteOctaveLength);
logger.info("Octave string value is " + octaveNumberString);
try {
context.octaveNumber = Integer.parseInt(octaveNumberString) + context.octaveBias;
context.isOctaveExplicitlySet = true;
} catch (NumberFormatException e) {
throw new ParserException(StaccatoMessages.OCTAVE_OUT_OF_RANGE, s);
}
if (context.octaveNumber > Note.MAX_OCTAVE) {
throw new ParserException(StaccatoMessages.OCTAVE_OUT_OF_RANGE, s);
}
if (context.octaveNumber < Note.MIN_OCTAVE) {
throw new ParserException(StaccatoMessages.OCTAVE_OUT_OF_RANGE, s);
}
context.originalString = context.originalString + octaveNumberString;
}
return index + definiteOctaveLength;
}
private void setDefaultOctave(NoteContext context) {
logger.info("No octave string found, setting default octave");
if (context.isChord) {
context.octaveNumber =
DefaultNoteSettingsManager.getInstance().getDefaultBassOctave() + context.octaveBias;
} else {
context.octaveNumber =
DefaultNoteSettingsManager.getInstance().getDefaultOctave() + context.octaveBias;
}
}
public Chord createChord(String chordString) {
// If the user requested a chord like "C" or "Ab" without providing any additional details,
// assume it's MAJOR
if (chordString.length() <= 2) {
chordString = chordString + "MAJ";
}
StaccatoParserContext parserContext = new StaccatoParserContext(new StaccatoParser());
NoteContext noteContext = new NoteContext();
parseNoteElement(chordString, 0, noteContext, parserContext);
return noteContext.createChord(parserContext);
}
/** This method does a variety of calculations to get the actual value of the note. */
private void computeNoteValue(NoteContext noteContext, StaccatoParserContext parserContext) {
// Don't compute note value for a rest
if (noteContext.isRest) {
return;
}
// Adjust for Key Signature
if (parserContext.getKey() != null) {
int keySig = KeyProviderFactory.getKeyProvider().convertKeyToByte(parserContext.getKey());
if ((keySig != 0) && (!noteContext.isNatural)) {
if ((keySig <= -1) && (noteContext.noteNumber == 11)) noteContext.noteNumber = 10;
if ((keySig <= -2) && (noteContext.noteNumber == 4)) noteContext.noteNumber = 3;
if ((keySig <= -3) && (noteContext.noteNumber == 9)) noteContext.noteNumber = 8;
if ((keySig <= -4) && (noteContext.noteNumber == 2)) noteContext.noteNumber = 1;
if ((keySig <= -5) && (noteContext.noteNumber == 7)) noteContext.noteNumber = 6;
if ((keySig <= -6) && (noteContext.noteNumber == 0)) {
noteContext.noteNumber = 11;
noteContext.octaveNumber--;
}
if ((keySig <= -7) && (noteContext.noteNumber == 5)) noteContext.noteNumber = 4;
if ((keySig >= +1) && (noteContext.noteNumber == 5)) noteContext.noteNumber = 6;
if ((keySig >= +2) && (noteContext.noteNumber == 0)) noteContext.noteNumber = 1;
if ((keySig >= +3) && (noteContext.noteNumber == 7)) noteContext.noteNumber = 8;
if ((keySig >= +4) && (noteContext.noteNumber == 2)) noteContext.noteNumber = 3;
if ((keySig >= +5) && (noteContext.noteNumber == 9)) noteContext.noteNumber = 10;
if ((keySig >= +6) && (noteContext.noteNumber == 4)) noteContext.noteNumber = 5;
if ((keySig >= +7) && (noteContext.noteNumber == 11)) {
noteContext.noteNumber = 0;
noteContext.octaveNumber++;
}
logger.info(
"After adjusting for Key Signature, noteNumber="
+ noteContext.noteNumber
+ " octave="
+ noteContext.octaveNumber);
}
}
// Compute the actual note number, based on octave and note
if (!noteContext.isNumericNote) {
int intNoteNumber =
((noteContext.octaveNumber) * 12) + noteContext.noteNumber + noteContext.internalInterval;
if (intNoteNumber > 127) {
throw new ParserException(
StaccatoMessages.CALCULATED_NOTE_OUT_OF_RANGE, Integer.toString(intNoteNumber));
}
noteContext.noteNumber = (byte) intNoteNumber;
logger.info("Computed note number: " + noteContext.noteNumber);
}
}
/**
* Returns the index with which to start parsing the next part of the string, once this method is
* done with its part
*/
private int parseNumericNote(String s, int index, NoteContext context) {
int numCharsInNumber = 0;
while (numCharsInNumber < s.length()
&& (s.charAt(index + numCharsInNumber) >= '0')
&& (s.charAt(index + numCharsInNumber) <= '9')) {
numCharsInNumber++;
}
String numericNoteString = s.substring(index, index + numCharsInNumber);
context.noteNumber = Byte.parseByte(numericNoteString);
context.isNumericNote = true;
logger.info("This note is a numeric note with value " + context.noteNumber);
return index + numCharsInNumber;
}
/**
* Returns the index with which to start parsing the next part of the string, once this method is
* done with its part
*/
private int parseInternalInterval(String s, int index, NoteContext context) {
if (context.isRest) {
return index;
}
// An internal interval is indicated by a single quote
if ((index < s.length()) && (s.charAt(index) == '\'')) {
int intervalLength = 0;
// Verify that index+1 is a number representing the interval.
if (index + 1 < s.length()
&& ((s.charAt(index + 1) >= '0') && (s.charAt(index + 1) <= '9'))) {
intervalLength = 1;
}
// We'll allow for the possibility of double-sharps and double-flats.
if ((intervalLength == 1)
&& (index + 2 < s.length())
&& ((s.charAt(index + 2) == '#') || (s.charAt(index + 2) == 'B'))) {
intervalLength = 2;
}
if ((intervalLength == 2)
&& (index + 3 < s.length())
&& ((s.charAt(index + 3) == '#') || (s.charAt(index + 3) == 'B'))) {
intervalLength = 3;
}
context.internalInterval =
Intervals.getHalfsteps(s.substring(index + 1, index + intervalLength + 1));
return index + intervalLength + 1;
} else {
return index;
}
}
/**
* Returns the String of the next sub-token (the parts after + or _), if one exists; otherwise,
* returns null
*/
private int parseConnector(String s, int index, NoteContext context) {
context.thereIsAnother = false;
// See if there's another note to process
if ((index < s.length()) && ((s.charAt(index) == '+') || (s.charAt(index) == '_'))) {
logger.info("Another note: string = " + s.substring(index, s.length() - 1));
if (s.charAt(index) == '_') {
context.anotherNoteIsMelodic = true;
logger.info("Next note will be melodic");
} else {
context.anotherNoteIsHarmonic = true;
logger.info("Next note will be harmonic");
}
index++;
context.thereIsAnother = true;
}
return index;
}
/**
* Returns the index with which to start parsing the next part of the string, once this method is
* done with its part
*/
private int parseTuplet(String s, int index, NoteContext context) {
if (index < s.length()) {
if (s.charAt(index) == '*') {
logger.info("Note is a tuplet");
index++;
// Figure out tuplet ratio, or figure out when to stop looking for tuplet info
boolean stopTupletParsing = false;
int indexOfUnitsToMatch = 0;
int indexOfNumNotes = 0;
int counter = -1;
while (!stopTupletParsing) {
counter++;
if (s.length() > index + counter) {
if (s.charAt(index + counter) == ':') {
indexOfNumNotes = index + counter + 1;
} else if ((s.charAt(index + counter) >= '0') && (s.charAt(index + counter) <= '9')) {
if (indexOfUnitsToMatch == 0) {
indexOfUnitsToMatch = index + counter;
}
} else if ((s.charAt(index + counter) == '*')) {
// no op... artifact of parsing
} else {
stopTupletParsing = true;
}
} else {
stopTupletParsing = true;
}
}
index += counter;
double numerator = 2.0d;
double denominator = 3.0d;
if ((indexOfUnitsToMatch > 0) && (indexOfNumNotes > 0)) {
numerator = Double.parseDouble(s.substring(indexOfUnitsToMatch, indexOfNumNotes - 1));
denominator = Double.parseDouble(s.substring(indexOfNumNotes, index));
}
logger.info("Tuplet ratio is " + numerator + ":" + denominator);
double tupletRatio = numerator / denominator;
context.decimalDuration = context.decimalDuration * (1.0d / tupletRatio);
logger.info("Decimal duration after tuplet is " + context.decimalDuration);
}
}
return index;
}
/**
* Returns the index with which to start parsing the next part of the string, once this method is
* done with its part
*/
private int parseQuantityDuration(String s, int index, NoteContext context) {
// A quantity is associated with the duration, like the '24' in "w24"
int endingIndex = seekToEndOfDecimal(s, index);
String quantityNumberString = s.substring(index, endingIndex);
context.decimalDuration +=
(1.0f / context.mostRecentDuration)
* (Double.parseDouble(quantityNumberString)
- 1.0D); // Subtract 1, because mostRecentDuration has already been added to the
// total duration
logger.info(
"Quantity duration calculation: Duration of 1/"
+ context.mostRecentDuration
+ " * "
+ quantityNumberString
+ " = "
+ (1.0 / context.mostRecentDuration) * Double.parseDouble(quantityNumberString));
return endingIndex;
}
/**
* Returns the index with which to start parsing the next part of the string, once this method is
* done with its part
*/
private int parseLetterNote(String s, int index, NoteContext context) {
context.isNumericNote = false;
int originalIndex = index;
switch (s.charAt(index)) {
case 'C':
context.noteNumber = 0;
break;
case 'D':
context.noteNumber = 2;
break;
case 'E':
context.noteNumber = 4;
break;
case 'F':
context.noteNumber = 5;
break;
case 'G':
context.noteNumber = 7;
break;
case 'A':
context.noteNumber = 9;
break;
case 'B':
context.noteNumber = 11;
break;
default:
break;
}
index++;
// Check for #, b, or n (sharp, flat, or natural) modifier
boolean checkForModifiers = true;
while (checkForModifiers) {
if (index < s.length()) {
switch (s.charAt(index)) {
case '#':
index++;
context.noteNumber++;
if (context.noteNumber == 12) {
context.noteNumber = 0;
context.octaveBias++;
}
break;
case 'B':
index++;
context.noteNumber--;
if (context.noteNumber == -1) {
context.noteNumber = 11;
context.octaveBias--;
}
break;
case 'N':
index++;
context.isNatural = true;
checkForModifiers = false;
break;
default:
checkForModifiers = false;
break;
}
} else {
checkForModifiers = false;
}
}
context.originalString = s.substring(originalIndex, index);
logger.info(
"Note number within an octave (C=0, B=11): "
+ context.noteNumber
+ " (with octaveBias = "
+ context.octaveBias
+ ")");
return index;
}
/**
* Returns the index with which to start parsing the next part of the string, once this method is
* done with its part
*/
private int parseRest(String s, int index, NoteContext context) {
context.isRest = true;
logger.info("This note is a Rest");
return index + 1;
}
/**
* Returns the index with which to start parsing the next part of the string, once this method is
* done with its part
*/
private int parseVelocity(String s, int index, NoteContext context) {
// Don't compute note velocity for a rest
if (context.isRest) {
return index;
}
// Process velocity attributes, if they exist
while (index < s.length()) {
int startPoint = index + 1;
int endPoint = startPoint;
char velocityChar = s.charAt(index);
int lengthOfByte = 0;
if ((velocityChar == '+') || (velocityChar == '_') || (velocityChar == ' ')) break;
logger.info("Identified Velocity character " + velocityChar);
boolean byteDone = false;
while (!byteDone && (index + lengthOfByte + 1 < s.length())) {
char possibleByteChar = s.charAt(index + lengthOfByte + 1);
if ((possibleByteChar >= '0') && (possibleByteChar <= '9')) {
lengthOfByte++;
} else {
byteDone = true;
}
}
endPoint = index + lengthOfByte + 1;
if (startPoint == endPoint) {
return endPoint;
}
byte velocityNumber = Byte.parseByte(s.substring(startPoint, endPoint));
// Or maybe a bracketed string was passed in, instead of a byte
String velocityString = null;
if ((index + 1 < s.length()) && (s.charAt(index + 1) == '[')) {
endPoint = s.indexOf(']', startPoint) + 1;
velocityString = s.substring(startPoint, endPoint);
}
switch (velocityChar) {
case 'A':
if (velocityString == null) {
context.noteOnVelocity = velocityNumber;
} else {
context.noteOnVelocityValueAsString = velocityString;
}
context.hasNoteOnVelocity = true;
break;
case 'D':
if (velocityString == null) {
context.noteOffVelocity = velocityNumber;
} else {
context.noteOffVelocityValueAsString = velocityString;
}
context.hasNoteOffVelocity = true;
break;
default:
throw new ParserException(
StaccatoMessages.VELOCITY_CHARACTER_NOT_RECOGNIZED,
s.substring(startPoint, endPoint));
}
index = endPoint;
}
if (context.hasNoteOnVelocity) {
logger.info("Attack velocity = " + context.noteOnVelocity);
}
if (context.hasNoteOffVelocity) {
logger.info("Decay velocity = " + context.noteOffVelocity);
}
return index;
}
/**
* Returns the index with which to start parsing the next part of the string, once this method is
* done with its part
*/
private int parseLetterDuration(
String s, int index, NoteContext context, StaccatoParserContext parserContext) {
boolean moreDurationCharsToParse = true;
boolean isDotted = false;
while (moreDurationCharsToParse == true) {
int durationNumber = 0;
// See if the note has a duration. Duration is optional for a note.
if (index < s.length()) {
char durationChar = s.charAt(index);
switch (durationChar) {
case '-':
if ((context.decimalDuration == 0.0D) && (!context.isEndOfTie)) {
context.isEndOfTie = true;
logger.info("Note is end of tie");
} else {
context.isStartOfTie = true;
logger.info("Note is start of tie");
}
break;
case 'W':
durationNumber = 1;
break;
case 'H':
durationNumber = 2;
break;
case 'Q':
durationNumber = 4;
break;
case 'I':
durationNumber = 8;
break;
case 'S':
durationNumber = 16;
break;
case 'T':
durationNumber = 32;
break;
case 'X':
durationNumber = 64;
break;
case 'O':
durationNumber = 128;
break;
default:
index--;
moreDurationCharsToParse = false;
break;
}
index++;
if ((index < s.length()) && (s.charAt(index) == '.')) {
isDotted = true;
index++;
}
if (durationNumber > 0) {
context.isDurationExplicitlySet = true;
double d = 1.0 / durationNumber;
if (isDotted) {
context.decimalDuration += d + (d / 2.0);
} else {
context.decimalDuration += d;
}
}
context.mostRecentDuration = durationNumber;
if ((index < s.length()) && (s.charAt(index) >= '0') && (s.charAt(index) <= '9')) {
index = parseQuantityDuration(s, index, context);
}
} else {
moreDurationCharsToParse = false;
}
}
return index;
}
/**
* Returns the index with which to start parsing the next part of the string, once this method is
* done with its part
*/
private int parseChordInversion(String s, int index, NoteContext context) {
if (!context.isChord) {
return index;
}
int inversionCount = 0;
boolean bassNote = false;
int startIndex = index;
boolean checkForInversion = true;
while (checkForInversion) {
if (index < s.length()) {
switch (s.charAt(index)) {
case '^':
index++;
inversionCount++;
break;
case 'C':
index++;
bassNote = true;
break;
case 'D':
index++;
bassNote = true;
break;
case 'E':
index++;
bassNote = true;
break;
case 'F':
index++;
bassNote = true;
break;
case 'G':
index++;
bassNote = true;
break;
case 'A':
index++;
bassNote = true;
break;
case 'B':
index++;
bassNote = true;
break;
case '#':
index++;
break; // presumably the sharp mark followed a note
// For '0', need to differentiate between initial 0 and 0 as a second digit (i.e., 10)
case '0':
index++;
inversionCount = (inversionCount == -1) ? 0 : inversionCount + 10;
break;
case '1':
index++;
inversionCount = 1;
break;
case '2':
index++;
inversionCount = 2;
break;
case '3':
index++;
inversionCount = 3;
break;
case '4':
index++;
inversionCount = 4;
break;
case '5':
index++;
inversionCount = 5;
break;
case '6':
index++;
inversionCount = 6;
break;
case '7':
index++;
inversionCount = 7;
break;
case '8':
index++;
inversionCount = 8;
break;
case '9':
index++;
inversionCount = 9;
break;
// For '[', we're checking for a note number after the inversion marker
case '[':
int indexEndBracket = s.indexOf(']', index);
context.inversionBassNote =
Note.getToneString(Byte.parseByte(s.substring(index + 1, indexEndBracket - 1)));
index = indexEndBracket + 1;
break;
default:
checkForInversion = false;
break;
}
} else {
checkForInversion = false;
}
}
// Modify the note values based on the inversion
if (bassNote) {
context.inversionBassNote = context.inversionBassNote = s.substring(startIndex + 1, index);
} else if (inversionCount > 0) {
context.inversionCount = inversionCount;
}
return index;
}
