BeatType TimeSigFrac::rtick2beatType(int rtick)
{
if (rtick == 0)
return BeatType::DOWNBEAT;
if (rtick % dUnitTicks() != 0)
return BeatType::SUBBEAT;
if (isCompound()) {
if (rtick % beatTicks() != 0)
return BeatType::COMPOUND_SUBBEAT;
}
const int beatNum = rtick / beatTicks();
int stressBeat = 0;
if (isTriple())
stressBeat = 3;
else if (isDuple())
stressBeat = 2;
if (stressBeat && beatNum % stressBeat == 0)
return isCompound() ? BeatType::SIMPLE_STRESSED : BeatType::COMPOUND_STRESSED;
return isCompound() ? BeatType::SIMPLE_UNSTRESSED : BeatType::COMPOUND_UNSTRESSED;
}
int solutionsFor(int p){
int ans = 0;
for(int i = 1; i < p; i++){
for(int j = i + 1; j < p - i; j++){
int k = p - i - j;
if(isTriple(i, j, k)) ans++;
}
}
return ans;
}
// The function walks the given buffer and provides two things:
// - an array of absolute positions of the beginning of each line
// - a deque of found comments
void getLineShiftsAndComments( const char * buffer, int * lineShifts,
std::deque< CommentLine > & comments )
{
int absPos = 0;
char symbol;
int line = 1;
int column = 1;
ExpectState expectState = expectCommentStart;
CommentLine comment;
/* index 0 is not used; The first line starts with shift 0 */
lineShifts[ 1 ] = 0;
while ( buffer[ absPos ] != '\0' )
{
symbol = buffer[ absPos ];
if ( symbol == '#' )
{
if ( expectState == expectCommentStart )
{
comment.begin = absPos;
comment.line = line;
comment.pos = column;
expectState = expectCommentEnd;
++absPos;
++column;
continue;
}
}
else if ( expectState != expectCommentEnd )
{
if ( symbol == '\"' || symbol == '\'' )
{
if ( isEscaped( buffer, absPos ) )
{
++absPos;
++column;
continue;
}
// It is not escaped some kind of quote
if ( symbol == '\"' &&
( expectState == expectClosingSingleQuote ||
expectState == expectClosingTripleSingleQuote ) )
{
// " inside ' or '''
++absPos;
++column;
continue;
}
if ( symbol == '\'' &&
( expectState == expectClosingDoubleQuote ||
expectState == expectClosingTripleDoubleQuote ) )
{
// ' inside " or """
++absPos;
++column;
continue;
}
// String literal beginning case
if ( expectState == expectCommentStart )
{
if ( isTriple( buffer, absPos ) == true )
{
if ( symbol == '\"' )
expectState = expectClosingTripleDoubleQuote;
else
expectState = expectClosingTripleSingleQuote;
absPos += 3;
column += 3;
}
else
{
if ( symbol == '\"' )
expectState = expectClosingDoubleQuote;
else
expectState = expectClosingSingleQuote;
++absPos;
++column;
}
continue;
}
// String literal end case
if ( expectState == expectClosingSingleQuote ||
expectState == expectClosingDoubleQuote )
{
expectState = expectCommentStart;
++absPos;
++column;
continue;
}
else if ( expectState == expectClosingTripleSingleQuote ||
expectState == expectClosingTripleDoubleQuote )
{
if ( isTriple( buffer, absPos ) == true )
{
expectState = expectCommentStart;
absPos += 3;
column += 3;
continue;
}
++absPos;
++column;
continue;
}
else
throw std::runtime_error( "Fatal error: unknown quote state" );
}
}
if ( symbol == '\r' )
{
comment.end = absPos - 1; // will not harm but will unify the code
++absPos;
if ( buffer[ absPos ] == '\n' )
{
++absPos;
}
++line;
lineShifts[ line ] = absPos;
column = 1;
if ( expectState == expectCommentEnd )
{
comment.detectType( buffer );
comments.push_back( comment );
comment.begin = -1;
expectState = expectCommentStart;
}
continue;
}
if ( symbol == '\n' )
{
comment.end = absPos - 1; // will not harm but will unify the code
++absPos;
++line;
lineShifts[ line ] = absPos;
column = 1;
if ( expectState == expectCommentEnd )
{
comment.detectType( buffer );
comments.push_back( comment );
comment.begin = -1;
expectState = expectCommentStart;
}
continue;
}
++absPos;
++column;
}
if ( comment.begin != -1 )
{
// Need to flush the collected comment
comment.detectType( buffer );
comment.end = absPos - 1;
comments.push_back( comment );
}
return;
}
