QRegExpCharClass Class Reference

Public Functions
void	addCategories (int cats)
void	addRange (ushort from, ushort to)
void	addSingleton (ushort ch)
void	clear ()
void	dump () const
const QVector< int > &	firstOccurrence () const
bool	in (QChar ch) const
bool	negative () const
QRegExpCharClass &	operator= (const QRegExpCharClass &cc)
	QRegExpCharClass ()
	QRegExpCharClass (const QRegExpCharClass &cc)
void	setNegative (bool negative)

Properties
int	c
bool	n
QVector< int >	occ1
QVector< QRegExpCharClassRange >	r

Detailed Description

Definition at line 1022 of file qregexp.cpp.

Constructors and Destructors

QRegExpCharClass() [1/2]

QRegExpCharClass::QRegExpCharClass

(

)

Definition at line 2323 of file qregexp.cpp.

    : c(0), n(false)
{
#ifndef QT_NO_REGEXP_OPTIM
    occ1.fill(NoOccurrence, NumBadChars);
#endif
}

QRegExpCharClass() [2/2]

QRegExpCharClass::QRegExpCharClass ( const QRegExpCharClass &  cc )

inline

Definition at line 1026 of file qregexp.cpp.

{ operator=(cc); }

Functions

addCategories()

void QRegExpCharClass::addCategories

(

int

cats

)

Definition at line 2357 of file qregexp.cpp.

Referenced by QRegExpEngine::getEscape().

{
    c |= cats;
#ifndef QT_NO_REGEXP_OPTIM
    occ1.fill(0, NumBadChars);
#endif
}

addRange()

void QRegExpCharClass::addRange	(	ushort	from,
		ushort	to
	)

Definition at line 2365 of file qregexp.cpp.

Referenced by QRegExpEngine::getEscape(), and QRegExpEngine::getToken().

{
    if (from > to)
        qSwap(from, to);
    int m = r.size();
    r.resize(m + 1);
    r[m].from = from;
    r[m].len = to - from + 1;

#ifndef QT_NO_REGEXP_OPTIM
    int i;

    if (to - from < NumBadChars) {
        if (from % NumBadChars <= to % NumBadChars) {
            for (i = from % NumBadChars; i <= to % NumBadChars; i++)
                occ1[i] = 0;
        } else {
            for (i = 0; i <= to % NumBadChars; i++)
                occ1[i] = 0;
            for (i = from % NumBadChars; i < NumBadChars; i++)
                occ1[i] = 0;
        }
    } else {
        occ1.fill(0, NumBadChars);
    }
#endif
}

addSingleton()

void QRegExpCharClass::addSingleton ( ushort  ch )

inline

Definition at line 1035 of file qregexp.cpp.

Referenced by QRegExpEngine::getEscape(), and QRegExpEngine::getToken().

{ addRange(ch, ch); }

clear()

void QRegExpCharClass::clear

(

)

Definition at line 2342 of file qregexp.cpp.

Referenced by QRegExpEngine::getToken().

{
    c = 0;
    r.resize(0);
    n = false;
}

dump()

void QRegExpCharClass::dump

(

)

const

Definition at line 2415 of file qregexp.cpp.

{
    int i;
    qDebug("    %stive character class", n ? "nega" : "posi");
#ifndef QT_NO_REGEXP_CCLASS
    if (c != 0)
        qDebug("      categories 0x%.8x", c);
#endif
    for (i = 0; i < r.size(); i++)
        qDebug("      0x%.4x through 0x%.4x", r[i].from, r[i].from + r[i].len - 1);
}

firstOccurrence()

const QVector<int>& QRegExpCharClass::firstOccurrence ( ) const

inline

Definition at line 1039 of file qregexp.cpp.

Referenced by QRegExpEngine::Box::set().

{ return occ1; }

in()

bool QRegExpCharClass::in

(

QChar

ch

)

const

Definition at line 2393 of file qregexp.cpp.

Referenced by QRegExpMatchState::matchHere().

{
#ifndef QT_NO_REGEXP_OPTIM
    if (occ1.at(BadChar(ch)) == NoOccurrence)
        return n;
#endif

    if (c != 0 && (c & (1 << (int)ch.category())) != 0)
        return !n;

    const int uc = ch.unicode();
    int size = r.size();

    for (int i = 0; i < size; ++i) {
        const QRegExpCharClassRange &range = r.at(i);
        if (uint(uc - range.from) < uint(r.at(i).len))
            return !n;
    }
    return n;
}

negative()

bool QRegExpCharClass::negative ( ) const

inline

Definition at line 1031 of file qregexp.cpp.

Referenced by QRegExpEngine::getEscape(), QRegExpMatchState::matchHere(), and setNegative().

{ return n; }

operator=()

QRegExpCharClass & QRegExpCharClass::operator=

(

const QRegExpCharClass &

cc

)

Definition at line 2331 of file qregexp.cpp.

{
    c = cc.c;
    r = cc.r;
    n = cc.n;
#ifndef QT_NO_REGEXP_OPTIM
    occ1 = cc.occ1;
#endif
    return *this;
}

setNegative()

void QRegExpCharClass::setNegative

(

bool

negative

)

Definition at line 2349 of file qregexp.cpp.

Referenced by QRegExpEngine::getEscape(), and QRegExpEngine::getToken().

{
    n = negative;
#ifndef QT_NO_REGEXP_OPTIM
    occ1.fill(0, NumBadChars);
#endif
}

Properties

c

int QRegExpCharClass::c

private

Definition at line 1047 of file qregexp.cpp.

Referenced by addCategories(), clear(), dump(), in(), and operator=().

n

bool QRegExpCharClass::n

private

Definition at line 1049 of file qregexp.cpp.

Referenced by clear(), dump(), in(), operator=(), and setNegative().

occ1

QVector<int> QRegExpCharClass::occ1

private

Definition at line 1051 of file qregexp.cpp.

Referenced by addCategories(), addRange(), in(), operator=(), QRegExpCharClass(), and setNegative().

r

QVector<QRegExpCharClassRange> QRegExpCharClass::r

private

Definition at line 1048 of file qregexp.cpp.

Referenced by addRange(), clear(), dump(), in(), and operator=().

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The documentation for this class was generated from the following file:

• /src/corelib/tools/qregexp.cpp