@Test
public void sanityCheck4() {
String input =
"X: 1\nT:Piece No.1\nM:4/4\nL:1/4\nQ: 140\nK:C\nC C C3/4 D/4 E | E3/4 D/4 E3/4 F/4 G2 | (3c/c/c/ (3G/G/G/ (3E/E/E/ (3C/C/C/ | G3/4 F/4 E3/4 D/4 C2 |]";
ABCLexer lexer = new ABCLexer(input);
ABCParser parser = new ABCParser(lexer);
ABCMusic music = parser.parse();
System.out.println(music.toString());
}
@Test
// Sanity check to make sure the header is parsed correctly
public void sanityCheck1() {
String input = "X:1\nT:Paddy O'Rafferty\nC:Trad.\nM:6/8\nQ:200\nK:D\naaaaaa|]";
ABCLexer lexer = new ABCLexer(input);
ABCParser parser = new ABCParser(lexer);
ABCMusic music = parser.parse();
music.DisplayInfo();
}
@Test
// Sanity check to make sure the header is parsed correctly
public void sanityCheck2() {
String input =
"X:8628\nT:Prelude BWV 846 no. 1\nC:Johann Sebastian Bach\nM:4/4\nL:1/16\nQ:280\nV:1\nK:C\nV:1\nz2 Gc eGce z2 Gc eGce|]";
ABCLexer lexer = new ABCLexer(input);
ABCParser parser = new ABCParser(lexer);
ABCMusic music = parser.parse();
music.DisplayInfo();
}
@Test
// Sanity check on a short piece of music to enusre it is handling the notes correctly
// Since the output from the toString method is different from input abc format, but only
// slightly, it is easier to leave this test
// as a visual check rather than an assertEquals
public void sanityCheck3() {
String input =
"X:1\nT:Simple scale\nC:Unknown\nM:4/4\nL:1/4\nQ:120\nK:C\nC D E F | G A B c | c B A G | F E D C |";
ABCLexer lexer = new ABCLexer(input);
ABCParser parser = new ABCParser(lexer);
ABCMusic music = parser.parse();
System.out.println(music.toString());
}
/**
* The terminal recursion method that compiles the list of NoteTokens that make up a given meter
* according to the ABC Grammar specifications
*
* <p>Note: Currently only enforces that a meter not have timing greater than specified in the
* ABCHeader but does not care about truncated Meters, apparently those are okay in music
*
* <p>Note: Assumes that meters can be of any length if desired, even if those lengths violate the
* M field this is due to the availability of truncated starts and ends, or switches to time mid
* music
*
* @return An ADT Meters that contains a list of all the NoteTokens that exist in the meter it
* begins from
*/
private Meters parseMeter() {
next = lexer.GetNextTokenType();
Meters currentMeter = new Meters();
// Create variables to enforce meter lengths
double noteLength;
double meterCount = 0;
double meterLength =
((double) ThePiece.getMeterSum()[0]) / ((double) ThePiece.getMeterSum()[1]);
// Until the given meter is terminated
while (next != Tokens.Type.BARLINE
&& next != Tokens.Type.REPEAT
&& next != Tokens.Type.END_OF_LINE
&& next != Tokens.Type.COMMENT
&& meterCount < meterLength) {
NoteToken nextToken = lexer.getNextNoteToken();
switch (next) {
case NOTE:
case REST:
// Construct the note or rest length and add it to the meter length
noteLength =
(((double) (nextToken.getLength()[0] * ThePiece.getNoteLength()[0]))
/ ((double) (nextToken.getLength()[1] * (double) ThePiece.getNoteLength()[1])));
meterCount += noteLength;
// As long as the meter is not overloaded, add the note or rest to the Meters List
if (meterCount <= meterLength) {
currentMeter.addElts(nextToken);
next = lexer.GetNextTokenType();
} else {
throw new IllegalArgumentException(
"Overloaded Meter with count greater than permitted");
}
next = lexer.GetNextTokenType();
break;
case TUPLET:
// Calculate the Tuplet length as a product of the type of Tuplet and its inner note
// lengths
// this is dependent on all Tuplet notes having the same length
noteLength =
(((double) (nextToken.getElts()[0].getLength()[0] * ThePiece.getNoteLength()[0]))
/ ((double)
(nextToken.getElts()[0].getLength()[1]
* (double) ThePiece.getNoteLength()[1])));
noteLength = noteLength * nextToken.getLength()[0];
meterCount += noteLength;
// Add each note in the Tuplet as long as the whole tuplet would fit in the meter
if (meterCount <= meterLength) {
for (int i = 0; i < nextToken.getElts().length; i++) {
currentMeter.addElts(
nextToken.getElts()[i].changeLength(
nextToken.getLength()[0], nextToken.getLength()[1]));
}
next = lexer.GetNextTokenType();
} else {
throw new IllegalArgumentException(
"Overloaded Meter with a tuplet, is it counted wrong?");
}
next = lexer.GetNextTokenType();
break;
case CHORD:
// A Chord is multiple notes played at once, so its length is simply the length of one of
// the elements
// This relies on the Chord having all notes of the same length
noteLength =
(((double) (nextToken.getLength()[0] * ThePiece.getNoteLength()[0]))
/ ((double) (nextToken.getLength()[1] * (double) ThePiece.getNoteLength()[1])));
meterCount += noteLength;
// If the Chord fits, add its construct to the Meters List
if (meterCount <= meterLength) {
currentMeter.addElts(nextToken);
next = lexer.GetNextTokenType();
} else {
throw new IllegalArgumentException(
"Overloaded Meter with a tuplet, is it counted wrong?");
}
next = lexer.GetNextTokenType();
break;
default:
throw new IllegalArgumentException(
"Somehow made a note token, but it was not a NOTE, TUPLET, CHORD or REST");
}
}
// To check measure lengths vs meter, apparently this no longer matters, kept for legacy
/*
System.out.println(meterCount+" vs "+meterLength);
if(meterCount != meterLength && meterCount + .000001 < meterLength){
throw new IllegalArgumentException("Got a meter with the wrong timing, bad stuff mang");
}
*/
// Return the finished meter
return currentMeter;
}
