void Parser::Exp() {
int p;
int base;
Paren();
base = value;
Exp_1(&p);
value = pow(base,p);
}
void Parser::Exp_1(int *p) {
int tempVal;
int q;
int base;
if(lookahead == T_POWER) {
match(T_POWER);
Paren();
if (evaluate == true) {
base = value;
}
Exp_1(&q);
if(evaluate == true) {
*p = pow(base,q);
}
}
else {
//do nothing
switch(lookahead) {
case T_SEMICOLON:
case T_EOF:
case T_PLUS:
case T_MINUS:
case T_MULTIPLY:
case T_DIVIDE:
case T_CLOSEPAREN:
case T_CLOSEBRACKET:
//epsilon
break;
default:
parseError(scanner.lineNumber(), lookahead);
break;
}
if(evaluate == true) {
*p = 1; //default power is set to 1
}
}
}
void QSASyntaxHighlighter::process( QTextDocument *doc, QTextParagraph *string, int, bool invalidate )
{
// ### AbanQ
if (this == 0)
return;
QTextFormat *formatStandard = format( Standard );
QTextFormat *formatComment = format( Comment );
QTextFormat *formatNumber = format( Number );
QTextFormat *formatString = format( String );
QTextFormat *formatType = format( Type );
QTextFormat *formatPreProcessor = format( PreProcessor );
QTextFormat *formatLabel = format( Label );
// states
const int StateStandard = 0;
const int StateCommentStart1 = 1;
const int StateCCommentStart2 = 2;
const int StateCppCommentStart2 = 3;
const int StateCComment = 4;
const int StateCppComment = 5;
const int StateCCommentEnd1 = 6;
const int StateCCommentEnd2 = 7;
const int StateStringStart = 8;
const int StateString = 9;
const int StateStringEnd = 10;
const int StateString2Start = 11;
const int StateString2 = 12;
const int StateString2End = 13;
const int StateNumber = 14;
const int StatePreProcessor = 15;
// tokens
const int InputAlpha = 0;
const int InputNumber = 1;
const int InputAsterix = 2;
const int InputSlash = 3;
const int InputParen = 4;
const int InputSpace = 5;
const int InputHash = 6;
const int InputQuotation = 7;
const int InputApostrophe = 8;
const int InputSep = 9;
static const uchar table[ 16 ][ 10 ] = {
{ StateStandard, StateNumber, StateStandard, StateCommentStart1, StateStandard, StateStandard, StatePreProcessor, StateStringStart, StateString2Start, StateStandard }, // StateStandard
{ StateStandard, StateNumber, StateCCommentStart2, StateCppCommentStart2, StateStandard, StateStandard, StatePreProcessor, StateStringStart, StateString2Start, StateStandard }, // StateCommentStart1
{ StateCComment, StateCComment, StateCCommentEnd1, StateCComment, StateCComment, StateCComment, StateCComment, StateCComment, StateCComment, StateCComment }, // StateCCommentStart2
{ StateCppComment, StateCppComment, StateCppComment, StateCppComment, StateCppComment, StateCppComment, StateCppComment, StateCppComment, StateCppComment, StateCppComment }, // CppCommentStart2
{ StateCComment, StateCComment, StateCCommentEnd1, StateCComment, StateCComment, StateCComment, StateCComment, StateCComment, StateCComment, StateCComment }, // StateCComment
{ StateCppComment, StateCppComment, StateCppComment, StateCppComment, StateCppComment, StateCppComment, StateCppComment, StateCppComment, StateCppComment, StateCppComment }, // StateCppComment
{ StateCComment, StateCComment, StateCCommentEnd1, StateCCommentEnd2, StateCComment, StateCComment, StateCComment, StateCComment, StateCComment, StateCComment }, // StateCCommentEnd1
{ StateStandard, StateNumber, StateStandard, StateCommentStart1, StateStandard, StateStandard, StatePreProcessor, StateStringStart, StateString2Start, StateStandard }, // StateCCommentEnd2
{ StateString, StateString, StateString, StateString, StateString, StateString, StateString, StateStringEnd, StateString, StateString }, // StateStringStart
{ StateString, StateString, StateString, StateString, StateString, StateString, StateString, StateStringEnd, StateString, StateString }, // StateString
{ StateStandard, StateStandard, StateStandard, StateCommentStart1, StateStandard, StateStandard, StatePreProcessor, StateStringStart, StateString2Start, StateStandard }, // StateStringEnd
{ StateString2, StateString2, StateString2, StateString2, StateString2, StateString2, StateString2, StateString2, StateString2End, StateString2 }, // StateString2Start
{ StateString2, StateString2, StateString2, StateString2, StateString2, StateString2, StateString2, StateString2, StateString2End, StateString2 }, // StateString2
{ StateStandard, StateStandard, StateStandard, StateCommentStart1, StateStandard, StateStandard, StatePreProcessor, StateStringStart, StateString2Start, StateStandard }, // StateString2End
{ StateNumber, StateNumber, StateStandard, StateCommentStart1, StateStandard, StateStandard, StatePreProcessor, StateStringStart, StateString2Start, StateStandard }, // StateNumber
{ StatePreProcessor, StateStandard, StateStandard, StateCommentStart1, StateStandard, StateStandard, StatePreProcessor, StateStringStart, StateString2Start, StateStandard } // StatePreProcessor
};
QString buffer;
int state = StateStandard;
if ( string->prev() ) {
if ( string->prev()->endState() == -1 )
process( doc, string->prev(), 0, FALSE );
state = string->prev()->endState();
}
int input = -1;
int i = 0;
bool lastWasBackSlash = FALSE;
bool makeLastStandard = FALSE;
ParagData *paragData = (ParagData*)string->extraData();
if ( paragData )
paragData->parenList.clear();
else
paragData = new ParagData;
string->setExtraData( paragData );
static QString alphabeth = QString::fromLatin1("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ");
static QString mathChars = QString::fromLatin1("xXeE");
static QString numbers = QString::fromLatin1("0123456789");
bool questionMark = FALSE;
bool resetLineState = TRUE;
QChar lastChar;
QString firstWord;
while ( TRUE ) {
QChar c = string->at( i )->c;
if ( lastWasBackSlash ) {
input = InputSep;
} else {
switch ( c.latin1() ) {
case '*':
input = InputAsterix;
break;
case '/':
input = InputSlash;
break;
case '(': case '[': case '{':
input = InputParen;
if ( state == StateStandard ||
state == StateNumber ||
state == StatePreProcessor ||
state == StateCCommentEnd2 ||
state == StateCCommentEnd1 ||
state == StateString2End ||
state == StateStringEnd )
paragData->parenList << Paren( Paren::Open, c, i );
break;
case ')': case ']': case '}':
input = InputParen;
if ( state == StateStandard ||
state == StateNumber ||
state == StatePreProcessor ||
state == StateCCommentEnd2 ||
state == StateCCommentEnd1 ||
state == StateString2End ||
state == StateStringEnd ) {
paragData->parenList << Paren( Paren::Closed, c, i );
if ( c == '}' ) {
if ( checkFunctionEnd( string, i ) )
resetLineState = FALSE;
}
}
break;
case '#':
input = InputHash;
break;
case '"':
input = InputQuotation;
break;
case '\'':
input = InputApostrophe;
break;
case ' ':
input = InputSpace;
if ( firstWord == QString::fromLatin1("function") || firstWord == QString::fromLatin1("constructor") || firstWord == QString::fromLatin1("class")/* ||
firstWord == "if" || firstWord == "for" || firstWord == "while" || firstWord == "else"*/ ) {
paragData->lineState = ParagData::FunctionStart;
resetLineState = FALSE;
}
break;
case '1': case '2': case '3': case '4': case '5':
case '6': case '7': case '8': case '9': case '0':
if ( alphabeth.find( lastChar ) != -1 &&
( mathChars.find( lastChar ) == -1 || numbers.find( string->at( i - 1 )->c ) == -1 ) ) {
input = InputAlpha;
} else {
if ( input == InputAlpha && numbers.find( lastChar ) != -1 )
input = InputAlpha;
else
input = InputNumber;
}
break;
case ':': {
input = InputAlpha;
QChar nextChar = ' ';
if ( i < string->length() - 1 )
nextChar = string->at( i + 1 )->c;
if ( state == StateStandard && !questionMark &&
lastChar != ':' && nextChar != ':' && lastChar.isLetter() ) {
for ( int j = 0; j < i; ++j ) {
if ( string->at( j )->format() == formatStandard )
string->setFormat( j, 1, formatLabel, FALSE );
}
}
break;
}
default: {
if ( c != '\t' )
firstWord += c;
QString s = firstWord.simplifyWhiteSpace();
if ( s == QString::fromLatin1("private") || s == QString::fromLatin1("protected") || s == QString::fromLatin1("public") || s == QString::fromLatin1("static") )
firstWord = "";
if ( !questionMark && c == '?' )
questionMark = TRUE;
if ( c.isLetter() || c == '_' )
input = InputAlpha;
else
input = InputSep;
} break;
}
}
lastWasBackSlash = !lastWasBackSlash && c == '\\';
if ( input == InputAlpha )
buffer += c;
state = table[ state ][ input ];
switch ( state ) {
case StateStandard: {
int len = buffer.length();
string->setFormat( i, 1, formatStandard, FALSE );
if ( makeLastStandard )
string->setFormat( i - 1, 1, formatStandard, FALSE );
makeLastStandard = FALSE;
if ( buffer.length() > 0 && input != InputAlpha ) {
if ( buffer == QString::fromLatin1("true") || buffer == QString::fromLatin1("false") ||
buffer == QString::fromLatin1("NaN") || buffer == QString::fromLatin1("Infinity") ||
buffer == QString::fromLatin1("undefined") ) {
string->setFormat( i - buffer.length(), buffer.length(), formatType, FALSE );
} else {
QMap<int, QMap<QString, int > >::Iterator it = wordMap->find( len );
if ( it != wordMap->end() ) {
QMap<QString, int >::Iterator it2 = ( *it ).find( buffer );
if ( it2 != ( *it ).end() )
string->setFormat( i - buffer.length(), buffer.length(), format( ( *it2 ) ), FALSE );
}
}
buffer = QString::null;
}
} break;
case StateCommentStart1:
if ( makeLastStandard )
string->setFormat( i - 1, 1, formatStandard, FALSE );
makeLastStandard = TRUE;
buffer = QString::null;
break;
case StateCCommentStart2:
string->setFormat( i - 1, 2, formatComment, FALSE );
makeLastStandard = FALSE;
buffer = QString::null;
break;
case StateCppCommentStart2:
string->setFormat( i - 1, 2, formatComment, FALSE );
makeLastStandard = FALSE;
buffer = QString::null;
break;
case StateCComment:
if ( makeLastStandard )
string->setFormat( i - 1, 1, formatStandard, FALSE );
makeLastStandard = FALSE;
string->setFormat( i, 1, formatComment, FALSE );
buffer = QString::null;
break;
case StateCppComment:
if ( makeLastStandard )
string->setFormat( i - 1, 1, formatStandard, FALSE );
makeLastStandard = FALSE;
string->setFormat( i, 1, formatComment, FALSE );
buffer = QString::null;
break;
case StateCCommentEnd1:
if ( makeLastStandard )
string->setFormat( i - 1, 1, formatStandard, FALSE );
makeLastStandard = FALSE;
string->setFormat( i, 1, formatComment, FALSE );
buffer = QString::null;
break;
case StateCCommentEnd2:
if ( makeLastStandard )
string->setFormat( i - 1, 1, formatStandard, FALSE );
makeLastStandard = FALSE;
string->setFormat( i, 1, formatComment, FALSE );
buffer = QString::null;
break;
case StateStringStart:
if ( makeLastStandard )
string->setFormat( i - 1, 1, formatStandard, FALSE );
makeLastStandard = FALSE;
string->setFormat( i, 1, formatStandard, FALSE );
buffer = QString::null;
break;
case StateString:
if ( makeLastStandard )
string->setFormat( i - 1, 1, formatStandard, FALSE );
makeLastStandard = FALSE;
string->setFormat( i, 1, formatString, FALSE );
buffer = QString::null;
break;
case StateStringEnd:
if ( makeLastStandard )
string->setFormat( i - 1, 1, formatStandard, FALSE );
makeLastStandard = FALSE;
string->setFormat( i, 1, formatStandard, FALSE );
buffer = QString::null;
break;
case StateString2Start:
if ( makeLastStandard )
string->setFormat( i - 1, 1, formatStandard, FALSE );
makeLastStandard = FALSE;
string->setFormat( i, 1, formatStandard, FALSE );
buffer = QString::null;
break;
case StateString2:
if ( makeLastStandard )
string->setFormat( i - 1, 1, formatStandard, FALSE );
makeLastStandard = FALSE;
string->setFormat( i, 1, formatString, FALSE );
buffer = QString::null;
break;
case StateString2End:
if ( makeLastStandard )
string->setFormat( i - 1, 1, formatStandard, FALSE );
makeLastStandard = FALSE;
string->setFormat( i, 1, formatStandard, FALSE );
buffer = QString::null;
break;
case StateNumber:
if ( makeLastStandard )
string->setFormat( i - 1, 1, formatStandard, FALSE );
makeLastStandard = FALSE;
string->setFormat( i, 1, formatNumber, FALSE );
buffer = QString::null;
break;
case StatePreProcessor:
if ( makeLastStandard )
string->setFormat( i - 1, 1, formatStandard, FALSE );
makeLastStandard = FALSE;
string->setFormat( i, 1, formatPreProcessor, FALSE );
buffer = QString::null;
break;
}
lastChar = c;
i++;
if ( i >= string->length() )
break;
}
if ( resetLineState )
paragData->lineState = ParagData::InFunction;
string->setExtraData( paragData );
int oldEndState = string->endState();
if ( state == StateCComment ||
state == StateCCommentEnd1 ) {
string->setEndState( StateCComment );
} else if ( state == StateString ) {
string->setEndState( StateString );
} else if ( state == StateString2 ) {
string->setEndState( StateString2 );
} else {
string->setEndState( StateStandard );
}
string->setFirstPreProcess( FALSE );
QTextParagraph *p = string->next();
if ( (!!oldEndState || !!string->endState()) && oldEndState != string->endState() &&
invalidate && p && !p->firstPreProcess() && p->endState() != -1 ) {
while ( p ) {
if ( p->endState() == -1 )
return;
p->setEndState( -1 );
p = p->next();
}
}
}
