Diffstat (limited to 'noncore/apps/tinykate/libkate/qt3back/qregexp3.cpp') (more/less context) (ignore whitespace changes)
| -rw-r--r-- | noncore/apps/tinykate/libkate/qt3back/qregexp3.cpp | 2282 |
1 files changed, 1144 insertions, 1138 deletions
diff --git a/noncore/apps/tinykate/libkate/qt3back/qregexp3.cpp b/noncore/apps/tinykate/libkate/qt3back/qregexp3.cpp index a2c680f..78635b2 100644 --- a/noncore/apps/tinykate/libkate/qt3back/qregexp3.cpp +++ b/noncore/apps/tinykate/libkate/qt3back/qregexp3.cpp @@ -33,30 +33,36 @@ ** Contact info@trolltech.com if any conditions of this licensing are ** not clear to you. ** **********************************************************************/ #if QT_VERSION >=300 #error QRegExp3 is now in QT 3 use QRegExp instead #endif -#include "qarray.h" -#include "qbitarray.h" -#include "qcache.h" -#include "qintdict.h" -#include "qmap.h" #if QT_VERSION < 300 #include "./qregexp3.h" #else #include "qregexp.h" #endif -#include "qstring.h" -#include "qtl.h" -#include "qvector.h" +/* OPIE */ +#include <opie2/odebug.h> + +/* QT */ +#include <qarray.h> +#include <qbitarray.h> +#include <qcache.h> +#include <qintdict.h> +#include <qmap.h> +#include <qstring.h> +#include <qtl.h> +#include <qvector.h> + +/* STD */ #include <limits.h> /* WARNING! Be sure to read qregexp.tex before modifying this file. */ /*! \class QRegExp3 qregexp.h @@ -510,42 +516,42 @@ Perl's split and join functions. Note: because C++ transforms \\'s they must be written \e twice in code, e.g. <b>\\</b><b>b</b> must be written <b>\\</b><b>\\</b><b>b</b>. <a name="code-examples"><b>Code Examples</b></a> \code - QRegExp rx( "^\\d\\d?$" ); // Match integers 0 to 99 - rx.search( "123" ); // Returns -1 (no match) - rx.search( "-6" ); // Returns -1 (no match) - rx.search( "6" ); // Returns 0 (matched as position 0) + QRegExp rx( "^\\d\\d?$" ); // Match integers 0 to 99 + rx.search( "123" ); // Returns -1 (no match) + rx.search( "-6" ); // Returns -1 (no match) + rx.search( "6" ); // Returns 0 (matched as position 0) \endcode The third string matches '<u>6</u>'. This is a simple validation regexp for integers in the range 0 to 99. \code - QRegExp rx( "^\\S+$" ); // Match strings which have no whitespace - rx.search( "Hello world" ); // Returns -1 (no match) - rx.search( "This_is-OK" ); // Returns 0 (matched at position 0) + QRegExp rx( "^\\S+$" ); // Match strings which have no whitespace + rx.search( "Hello world" ); // Returns -1 (no match) + rx.search( "This_is-OK" ); // Returns 0 (matched at position 0) \endcode The second string matches '<u>This_is-OK</u>'. We've used the character set abbreviation '\S' (non-whitespace) and the anchors to match strings which contain no whitespace. In the following example we match strings containing 'mail' or 'letter' or 'correspondence' but only match whole words i.e. not 'email' \code QRegExp rx( "\\b(mail|letter|correspondence)\\b" ); - rx.search( "I sent you an email" ); // Returns -1 (no match) + rx.search( "I sent you an email" ); // Returns -1 (no match) rx.search( "Please write the letter" ); // Returns 17 (matched at position 17) \endcode The second string matches "Please write the <u>letter</u>". The word 'letter' is also captured (because of the parenthesis). We can see what text we've captured like this: \code @@ -553,39 +559,39 @@ \endcode This will capture the text from the first set of capturing parenthesis (counting capturing left parenthesis from left to right). The parenthesis are counted from 1 since cap( 0 ) is the whole matched regexp (equivalent to '&' in most regexp engines). \code - QRegExp rx( "&(?!amp;)" ); // Match ampersands but not & + QRegExp rx( "&(?!amp;)" ); // Match ampersands but not & QString line1 = "This & that"; line1.replace( rx, "&" ); // line1 == "This & that" QString line2 = "His & hers & theirs"; line2.replace( rx, "&" ); // line2 == "His & hers & theirs" \endcode Here we've passed the QRegExp to QString's replace() function to replace the matched text with new text. \code QString str = "One Eric another Eirik, and an Ericsson. How many Eiriks, Eric?"; - QRegExp rx( "\\b(Eric|Eirik)\\b" ); // Match Eric or Eirik + QRegExp rx( "\\b(Eric|Eirik)\\b" ); // Match Eric or Eirik int pos = 0; // Where we are in the string int count = 0; // How many Eric and Eirik's we've counted while ( pos >= 0 ) { - pos = rx.search( str, pos ); - if ( pos >= 0 ) { - pos++; // Move along in str - count++; // Count our Eric or Eirik - } + pos = rx.search( str, pos ); + if ( pos >= 0 ) { + pos++; // Move along in str + count++; // Count our Eric or Eirik + } } \endcode We've used the search() function to repeatedly match the regexp in the string. Note that instead of moving forward by one character at a time <tt>pos++</tt> we could have written <tt>pos += rx.matchedLength()</tt> to skip over the already matched string. The count will equal 3, matching 'One <u>Eric</u> another <u>Eirik</u>, @@ -596,19 +602,19 @@ One common use of regexps is to split lines of delimited data into their component fields. \code str = "Trolltech AS\twww.trolltech.com\tNorway"; QString company, web, country; rx.setPattern( "^([^\t]+)\t([^\t]+)\t([^\t]+)$" ); if ( rx.search( str ) != -1 ) { - company = rx.cap( 1 ); - web = rx.cap( 2 ); - country = rx.cap( 3 ); + company = rx.cap( 1 ); + web = rx.cap( 2 ); + country = rx.cap( 3 ); } \endcode In this example our input lines have the format company name, web address and country. Unfortunately the regexp is rather long and not very versatile -- the code will break if we add any more fields. A simpler and better solution is to look for the separator, '\t' in this case, and take the surrounding text. The QStringList split() @@ -619,21 +625,21 @@ QStringList field = QStringList::split( "\t", str ); \endcode Here field[0] is the company, field[1] the web address and so on. To immitate the matching of a shell we can use wildcard mode. \code - QRegExp rx( "*.html" ); // Invalid regexp: * doesn't quantify anything - rx.setWildcard( TRUE ); // Now its a valid wildcard regexp - rx.search( "index.html" ); // Returns 0 (matched at position 0) - rx.search( "default.htm" ); // Returns -1 (no match) - rx.search( "readme.txt" ); // Returns -1 (no match) + QRegExp rx( "*.html" ); // Invalid regexp: * doesn't quantify anything + rx.setWildcard( TRUE ); // Now its a valid wildcard regexp + rx.search( "index.html" ); // Returns 0 (matched at position 0) + rx.search( "default.htm" ); // Returns -1 (no match) + rx.search( "readme.txt" ); // Returns -1 (no match) \endcode Wildcard matching can be convenient because of its simplicity, but any wildcard regex can be defined using full regexps, e.g. <b>.*\.html$</b>. Notice that we can't match both \c .html and \c .htm files with a wildcard unless we use <b>*.htm*</b> which will also match 'test.html.bak'. A full regexp gives us the precision we need, <b>.*\.html?$</b>. @@ -671,122 +677,122 @@ static QArray<int> *firstOccurrenceAtZero = 0; /* Merges two QArrays of ints and puts the result into the first one. */ static void mergeInto( QArray<int> *a, const QArray<int>& b ) { int asize = a->size(); int bsize = b.size(); if ( asize == 0 ) { - *a = b.copy(); + *a = b.copy(); #ifndef QT_NO_REGEXP_OPTIM } else if ( bsize == 1 && (*a)[asize - 1] < b[0] ) { - a->resize( asize + 1 ); - (*a)[asize] = b[0]; + a->resize( asize + 1 ); + (*a)[asize] = b[0]; #endif } else if ( bsize >= 1 ) { - int csize = asize + bsize; - QArray<int> c( csize ); - int i = 0, j = 0, k = 0; - while ( i < asize ) { - if ( j < bsize ) { - if ( (*a)[i] == b[j] ) { - i++; - csize--; - } else if ( (*a)[i] < b[j] ) { - c[k++] = (*a)[i++]; - } else { - c[k++] = b[j++]; - } - } else { - memcpy( c.data() + k, (*a).data() + i, - (asize - i) * sizeof(int) ); - break; - } - } - c.resize( csize ); - if ( j < bsize ) - memcpy( c.data() + k, b.data() + j, (bsize - j) * sizeof(int) ); - *a = c; + int csize = asize + bsize; + QArray<int> c( csize ); + int i = 0, j = 0, k = 0; + while ( i < asize ) { + if ( j < bsize ) { + if ( (*a)[i] == b[j] ) { + i++; + csize--; + } else if ( (*a)[i] < b[j] ) { + c[k++] = (*a)[i++]; + } else { + c[k++] = b[j++]; + } + } else { + memcpy( c.data() + k, (*a).data() + i, + (asize - i) * sizeof(int) ); + break; + } + } + c.resize( csize ); + if ( j < bsize ) + memcpy( c.data() + k, b.data() + j, (bsize - j) * sizeof(int) ); + *a = c; } } /* Merges two disjoint QMaps of (int, int) pairs and puts the result into the first one. */ static void mergeInto( QMap<int, int> *a, const QMap<int, int>& b ) { QMap<int, int>::ConstIterator it; for ( it = b.begin(); it != b.end(); ++it ) - a->insert( it.key(), *it ); + a->insert( it.key(), *it ); } /* Returns the value associated to key k in QMap m of (int, int) pairs, or 0 if no such value is explicitly present. */ static int at( const QMap<int, int>& m, int k ) { QMap<int, int>::ConstIterator it = m.find( k ); if ( it == m.end() ) - return 0; + return 0; else - return *it; + return *it; } #ifndef QT_NO_REGEXP_WILDCARD /* Translates a wildcard pattern to an equivalent regular expression pattern (e.g., *.cpp to .*\.cpp). */ static QString wc2rx( const QString& wc ) { int wclen = wc.length(); QString rx = QString::fromLatin1( "" ); int i = 0; while ( i < wclen ) { - QChar c = wc[i++]; - switch ( c.unicode() ) { - case '*': - rx += QString::fromLatin1( ".*" ); - break; - case '?': - rx += QChar( '.' ); - break; - case '$': - case '(': - case ')': - case '+': - case '.': - case '\\': - case '^': - case '{': - case '|': - case '}': - rx += QChar( '\\' ); - rx += c; - break; - case '[': - rx += c; - if ( wc[i] == QChar('^') ) - rx += wc[i++]; - if ( i < wclen ) { - if ( rx[i] == ']' ) - rx += wc[i++]; - while ( i < wclen && wc[i] != QChar(']') ) { - if ( wc[i] == '\\' ) - rx += QChar( '\\' ); - rx += wc[i++]; - } - } - break; - default: - rx += c; - } + QChar c = wc[i++]; + switch ( c.unicode() ) { + case '*': + rx += QString::fromLatin1( ".*" ); + break; + case '?': + rx += QChar( '.' ); + break; + case '$': + case '(': + case ')': + case '+': + case '.': + case '\\': + case '^': + case '{': + case '|': + case '}': + rx += QChar( '\\' ); + rx += c; + break; + case '[': + rx += c; + if ( wc[i] == QChar('^') ) + rx += wc[i++]; + if ( i < wclen ) { + if ( rx[i] == ']' ) + rx += wc[i++]; + while ( i < wclen && wc[i] != QChar(']') ) { + if ( wc[i] == '\\' ) + rx += QChar( '\\' ); + rx += wc[i++]; + } + } + break; + default: + rx += c; + } } return rx; } #endif /* The class QRegExpEngine encapsulates a modified nondeterministic finite automaton (NFA). @@ -797,105 +803,105 @@ public: #ifndef QT_NO_REGEXP_CCLASS /* The class CharClass represents a set of characters, such as can be found in regular expressions (e.g., [a-z] denotes the set {a, b, ..., z}). */ class CharClass { public: - CharClass(); - CharClass( const CharClass& cc ) { operator=( cc ); } + CharClass(); + CharClass( const CharClass& cc ) { operator=( cc ); } - CharClass& operator=( const CharClass& cc ); + CharClass& operator=( const CharClass& cc ); - void clear(); - bool negative() const { return n; } - void setNegative( bool negative ); - void addCategories( int cats ); - void addRange( ushort from, ushort to ); - void addSingleton( ushort ch ) { addRange( ch, ch ); } + void clear(); + bool negative() const { return n; } + void setNegative( bool negative ); + void addCategories( int cats ); + void addRange( ushort from, ushort to ); + void addSingleton( ushort ch ) { addRange( ch, ch ); } - bool in( QChar ch ) const; + bool in( QChar ch ) const; #ifndef QT_NO_REGEXP_OPTIM - const QArray<int>& firstOccurrence() const { return occ1; } + const QArray<int>& firstOccurrence() const { return occ1; } #endif #if defined(QT_DEBUG) - void dump() const; + void dump() const; #endif private: - /* - The struct Range represents a range of characters (e.g., [0-9] denotes - range 48 to 57). - */ - struct Range - { - ushort from; // 48 - ushort to; // 57 - }; - - int c; // character classes - QArray<Range> r; // character ranges - bool n; // negative? + /* + The struct Range represents a range of characters (e.g., [0-9] denotes + range 48 to 57). + */ + struct Range + { + ushort from; // 48 + ushort to; // 57 + }; + + int c; // character classes + QArray<Range> r; // character ranges + bool n; // negative? #ifndef QT_NO_REGEXP_OPTIM - QArray<int> occ1; // first-occurrence array + QArray<int> occ1; // first-occurrence array #endif }; #else struct CharClass { - int x; // dummy + int x; // dummy #ifndef QT_NO_REGEXP_OPTIM - const QArray<int>& firstOccurrence() const { - return *firstOccurrenceAtZero; - } + const QArray<int>& firstOccurrence() const { + return *firstOccurrenceAtZero; + } #endif }; #endif QRegExpEngine( bool caseSensitive ) { setup( caseSensitive ); } QRegExpEngine( const QString& rx, bool caseSensitive ); #ifndef QT_NO_REGEXP_OPTIM ~QRegExpEngine(); #endif bool isValid() const { return valid; } bool caseSensitive() const { return cs; } int numCaptures() const { return realncap; } QArray<int> match( const QString& str, int pos, bool minimal, - bool oneTest ); + bool oneTest ); int matchedLength() const { return mmMatchedLen; } int createState( QChar ch ); int createState( const CharClass& cc ); #ifndef QT_NO_REGEXP_BACKREF int createState( int bref ); #endif void addCatTransitions( const QArray<int>& from, const QArray<int>& to ); #ifndef QT_NO_REGEXP_CAPTURE void addPlusTransitions( const QArray<int>& from, const QArray<int>& to, - int atom ); + int atom ); #endif #ifndef QT_NO_REGEXP_ANCHOR_ALT int anchorAlternation( int a, int b ); int anchorConcatenation( int a, int b ); #else int anchorAlternation( int a, int b ) { return a & b; } int anchorConcatenation( int a, int b ) { return a | b; } #endif void addAnchors( int from, int to, int a ); #ifndef QT_NO_REGEXP_OPTIM void setupGoodStringHeuristic( int earlyStart, int lateStart, - const QString& str ); + const QString& str ); void setupBadCharHeuristic( int minLen, const QArray<int>& firstOcc ); void heuristicallyChooseHeuristic(); #endif #if defined(QT_DEBUG) void dump() const; #endif @@ -905,102 +911,102 @@ private: /* The struct State represents one state in a modified NFA. The input characters matched are stored in the state instead of on the transitions, something possible for an automaton constructed from a regular expression. */ struct State { #ifndef QT_NO_REGEXP_CAPTURE - int atom; // which atom does this state belong to? + int atom; // which atom does this state belong to? #endif - int match; // what does it match? (see CharClassBit and BackRefBit) - QArray<int> outs; // out-transitions - QMap<int, int> *reenter; // atoms reentered when transiting out - QMap<int, int> *anchors; // anchors met when transiting out + int match; // what does it match? (see CharClassBit and BackRefBit) + QArray<int> outs; // out-transitions + QMap<int, int> *reenter; // atoms reentered when transiting out + QMap<int, int> *anchors; // anchors met when transiting out #ifndef QT_NO_REGEXP_CAPTURE - State( int a, int m ) - : atom( a ), match( m ), reenter( 0 ), anchors( 0 ) { } + State( int a, int m ) + : atom( a ), match( m ), reenter( 0 ), anchors( 0 ) { } #else - State( int m ) - : match( m ), reenter( 0 ), anchors( 0 ) { } + State( int m ) + : match( m ), reenter( 0 ), anchors( 0 ) { } #endif - ~State() { delete reenter; delete anchors; } + ~State() { delete reenter; delete anchors; } }; #ifndef QT_NO_REGEXP_LOOKAHEAD /* The struct Lookahead represents a lookahead a la Perl (e.g., (?=foo) and (?!bar)). */ struct Lookahead { - QRegExpEngine *eng; // NFA representing the embedded regular expression - bool neg; // negative lookahead? + QRegExpEngine *eng; // NFA representing the embedded regular expression + bool neg; // negative lookahead? - Lookahead( QRegExpEngine *eng0, bool neg0 ) - : eng( eng0 ), neg( neg0 ) { } - ~Lookahead() { delete eng; } + Lookahead( QRegExpEngine *eng0, bool neg0 ) + : eng( eng0 ), neg( neg0 ) { } + ~Lookahead() { delete eng; } }; #endif #ifndef QT_NO_REGEXP_CAPTURE /* The struct Atom represents one node in the hierarchy of regular expression atoms. */ struct Atom { - int parent; // index of parent in array of atoms - int capture; // index of capture, from 1 to ncap + int parent; // index of parent in array of atoms + int capture; // index of capture, from 1 to ncap }; #endif #ifndef QT_NO_REGEXP_ANCHOR_ALT /* The struct AnchorAlternation represents a pair of anchors with OR semantics. */ struct AnchorAlternation { - int a; // this anchor... - int b; // ...or this one + int a; // this anchor... + int b; // ...or this one }; #endif enum { InitialState = 0, FinalState = 1 }; void setup( bool caseSensitive ); int setupState( int match ); /* Let's hope that 13 lookaheads and 14 back-references are enough. */ enum { MaxLookaheads = 13, MaxBackRefs = 14 }; enum { Anchor_Dollar = 0x00000001, Anchor_Caret = 0x00000002, - Anchor_Word = 0x00000004, Anchor_NonWord = 0x00000008, - Anchor_FirstLookahead = 0x00000010, - Anchor_BackRef1Empty = Anchor_FirstLookahead << MaxLookaheads, - Anchor_BackRef0Empty = Anchor_BackRef1Empty >> 1, - Anchor_Alternation = Anchor_BackRef1Empty << MaxBackRefs, - - Anchor_LookaheadMask = ( Anchor_FirstLookahead - 1 ) ^ - ( (Anchor_FirstLookahead << MaxLookaheads) - 1 ) }; + Anchor_Word = 0x00000004, Anchor_NonWord = 0x00000008, + Anchor_FirstLookahead = 0x00000010, + Anchor_BackRef1Empty = Anchor_FirstLookahead << MaxLookaheads, + Anchor_BackRef0Empty = Anchor_BackRef1Empty >> 1, + Anchor_Alternation = Anchor_BackRef1Empty << MaxBackRefs, + + Anchor_LookaheadMask = ( Anchor_FirstLookahead - 1 ) ^ + ( (Anchor_FirstLookahead << MaxLookaheads) - 1 ) }; #ifndef QT_NO_REGEXP_CAPTURE int startAtom( bool capture ); void finishAtom( int atom ) { cf = f[atom].parent; } #endif #ifndef QT_NO_REGEXP_LOOKAHEAD int addLookahead( QRegExpEngine *eng, bool negative ); #endif #ifndef QT_NO_REGEXP_CAPTURE bool isBetterCapture( const int *begin1, const int *end1, const int *begin2, - const int *end2 ); + const int *end2 ); #endif bool testAnchor( int i, int a, const int *capBegin ); #ifndef QT_NO_REGEXP_OPTIM bool goodStringMatch(); bool badCharMatch(); #else bool bruteMatch(); @@ -1050,74 +1056,74 @@ private: also be seen as one node in the syntax tree of a regular expression with synthetized attributes. It's interface is ugly for performance reasons. */ class Box { public: - Box( QRegExpEngine *engine ); - Box( const Box& b ) { operator=( b ); } + Box( QRegExpEngine *engine ); + Box( const Box& b ) { operator=( b ); } - Box& operator=( const Box& b ); + Box& operator=( const Box& b ); - void clear() { operator=(Box(eng)); } - void set( QChar ch ); - void set( const CharClass& cc ); + void clear() { operator=(Box(eng)); } + void set( QChar ch ); + void set( const CharClass& cc ); #ifndef QT_NO_REGEXP_BACKREF - void set( int bref ); + void set( int bref ); #endif - void cat( const Box& b ); - void orx( const Box& b ); - void plus( int atom ); - void opt(); - void catAnchor( int a ); + void cat( const Box& b ); + void orx( const Box& b ); + void plus( int atom ); + void opt(); + void catAnchor( int a ); #ifndef QT_NO_REGEXP_OPTIM - void setupHeuristics(); + void setupHeuristics(); #endif #if defined(QT_DEBUG) - void dump() const; + void dump() const; #endif private: - void addAnchorsToEngine( const Box& to ) const; + void addAnchorsToEngine( const Box& to ) const; - QRegExpEngine *eng; // the automaton under construction - QArray<int> ls; // the left states (firstpos) - QArray<int> rs; // the right states (lastpos) - QMap<int, int> lanchors; // the left anchors - QMap<int, int> ranchors; // the right anchors - int skipanchors; // the anchors to match if the box is skipped + QRegExpEngine *eng; // the automaton under construction + QArray<int> ls; // the left states (firstpos) + QArray<int> rs; // the right states (lastpos) + QMap<int, int> lanchors; // the left anchors + QMap<int, int> ranchors; // the right anchors + int skipanchors; // the anchors to match if the box is skipped #ifndef QT_NO_REGEXP_OPTIM - int earlyStart; // the index where str can first occur - int lateStart; // the index where str can last occur - QString str; // a string that has to occur in any match - QString leftStr; // a string occurring at the left of this box - QString rightStr; // a string occurring at the right of this box - int maxl; // the maximum length of this box (possibly InftyLen) + int earlyStart; // the index where str can first occur + int lateStart; // the index where str can last occur + QString str; // a string that has to occur in any match + QString leftStr; // a string occurring at the left of this box + QString rightStr; // a string occurring at the right of this box + int maxl; // the maximum length of this box (possibly InftyLen) #endif - int minl; // the minimum length of this box + int minl; // the minimum length of this box #ifndef QT_NO_REGEXP_OPTIM - QArray<int> occ1; // first-occurrence array + QArray<int> occ1; // first-occurrence array #endif }; friend class Box; /* This is the lexical analyzer for regular expressions. */ enum { Tok_Eos, Tok_Dollar, Tok_LeftParen, Tok_MagicLeftParen, - Tok_PosLookahead, Tok_NegLookahead, Tok_RightParen, Tok_CharClass, - Tok_Caret, Tok_Quantifier, Tok_Bar, Tok_Word, Tok_NonWord, - Tok_Char = 0x10000, Tok_BackRef = 0x20000 }; + Tok_PosLookahead, Tok_NegLookahead, Tok_RightParen, Tok_CharClass, + Tok_Caret, Tok_Quantifier, Tok_Bar, Tok_Word, Tok_NonWord, + Tok_Char = 0x10000, Tok_BackRef = 0x20000 }; int getChar(); int getEscape(); #ifndef QT_NO_REGEXP_INTERVAL int getRep( int def ); #endif #ifndef QT_NO_REGEXP_LOOKAHEAD void skipChars( int n ); #endif @@ -1184,68 +1190,68 @@ QRegExpEngine::QRegExpEngine( const QString& rx, bool caseSensitive ) setup( caseSensitive ); valid = ( parse(rx.unicode(), rx.length()) == (int) rx.length() ); } #ifndef QT_NO_REGEXP_OPTIM QRegExpEngine::~QRegExpEngine() { if ( --engCount == 0 ) { - delete noOccurrences; - noOccurrences = 0; - delete firstOccurrenceAtZero; - firstOccurrenceAtZero = 0; + delete noOccurrences; + noOccurrences = 0; + delete firstOccurrenceAtZero; + firstOccurrenceAtZero = 0; } } #endif /* Tries to match in str and returns an array of (begin, length) pairs for captured text. If there is no match, all pairs are (-1, -1). */ QArray<int> QRegExpEngine::match( const QString& str, int pos, bool minimal, - bool oneTest ) + bool oneTest ) { mmStr = &str; mmIn = str.unicode(); if ( mmIn == 0 ) - mmIn = &QChar::null; + mmIn = &QChar::null; mmPos = pos; mmLen = str.length(); mmMinimal = minimal; mmMatchedLen = 0; bool matched = FALSE; if ( valid && mmPos >= 0 && mmPos <= mmLen ) { #ifndef QT_NO_REGEXP_OPTIM - if ( mmPos <= mmLen - minl ) { - if ( caretAnchored || oneTest ) - matched = matchHere(); - else if ( useGoodStringHeuristic ) - matched = goodStringMatch(); - else - matched = badCharMatch(); - } + if ( mmPos <= mmLen - minl ) { + if ( caretAnchored || oneTest ) + matched = matchHere(); + else if ( useGoodStringHeuristic ) + matched = goodStringMatch(); + else + matched = badCharMatch(); + } #else - matched = oneTest ? matchHere() : bruteMatch(); + matched = oneTest ? matchHere() : bruteMatch(); #endif } if ( matched ) { - mmCaptured.detach(); - mmCaptured[0] = mmPos; - mmCaptured[1] = mmMatchedLen; - for ( int j = 0; j < realncap; j++ ) { - int len = mmCapEnd[j] - mmCapBegin[j]; - mmCaptured[2 + 2 * j] = len > 0 ? mmPos + mmCapBegin[j] : 0; - mmCaptured[2 + 2 * j + 1] = len; - } - return mmCaptured; + mmCaptured.detach(); + mmCaptured[0] = mmPos; + mmCaptured[1] = mmMatchedLen; + for ( int j = 0; j < realncap; j++ ) { + int len = mmCapEnd[j] - mmCapBegin[j]; + mmCaptured[2 + 2 * j] = len > 0 ? mmPos + mmCapBegin[j] : 0; + mmCaptured[2 + 2 * j + 1] = len; + } + return mmCaptured; } else { - return mmCapturedNoMatch; + return mmCapturedNoMatch; } } /* The three following functions add one state to the automaton and return the number of the state. */ @@ -1266,123 +1272,123 @@ int QRegExpEngine::createState( const CharClass& cc ) return setupState( CharClassBit ); #endif } #ifndef QT_NO_REGEXP_BACKREF int QRegExpEngine::createState( int bref ) { if ( bref > nbrefs ) { - nbrefs = bref; - if ( nbrefs > MaxBackRefs ) { - yyError = TRUE; - return 0; - } + nbrefs = bref; + if ( nbrefs > MaxBackRefs ) { + yyError = TRUE; + return 0; + } } return setupState( BackRefBit | bref ); } #endif /* The two following functions add a transition between all pairs of states (i, j) where i is fond in from, and j is found in to. Cat-transitions are distinguished from plus-transitions for capturing. */ void QRegExpEngine::addCatTransitions( const QArray<int>& from, - const QArray<int>& to ) + const QArray<int>& to ) { for ( int i = 0; i < (int) from.size(); i++ ) { - State *st = s[from[i]]; - mergeInto( &st->outs, to ); + State *st = s[from[i]]; + mergeInto( &st->outs, to ); } } #ifndef QT_NO_REGEXP_CAPTURE void QRegExpEngine::addPlusTransitions( const QArray<int>& from, - const QArray<int>& to, int atom ) + const QArray<int>& to, int atom ) { for ( int i = 0; i < (int) from.size(); i++ ) { - State *st = s[from[i]]; - QArray<int> oldOuts = st->outs.copy(); - mergeInto( &st->outs, to ); - if ( f[atom].capture >= 0 ) { - if ( st->reenter == 0 ) - st->reenter = new QMap<int, int>; - for ( int j = 0; j < (int) to.size(); j++ ) { - if ( !st->reenter->contains(to[j]) && - oldOuts.bsearch(to[j]) < 0 ) - st->reenter->insert( to[j], atom ); - } - } + State *st = s[from[i]]; + QArray<int> oldOuts = st->outs.copy(); + mergeInto( &st->outs, to ); + if ( f[atom].capture >= 0 ) { + if ( st->reenter == 0 ) + st->reenter = new QMap<int, int>; + for ( int j = 0; j < (int) to.size(); j++ ) { + if ( !st->reenter->contains(to[j]) && + oldOuts.bsearch(to[j]) < 0 ) + st->reenter->insert( to[j], atom ); + } + } } } #endif #ifndef QT_NO_REGEXP_ANCHOR_ALT /* Returns an anchor that means a OR b. */ int QRegExpEngine::anchorAlternation( int a, int b ) { if ( ((a & b) == a || (a & b) == b) && ((a | b) & Anchor_Alternation) == 0 ) - return a & b; + return a & b; int n = aa.size(); aa.resize( n + 1 ); aa[n].a = a; aa[n].b = b; return Anchor_Alternation | n; } /* Returns an anchor that means a AND b. */ int QRegExpEngine::anchorConcatenation( int a, int b ) { if ( ((a | b) & Anchor_Alternation) == 0 ) - return a | b; + return a | b; if ( (b & Anchor_Alternation) != 0 ) - qSwap( a, b ); + qSwap( a, b ); int aprime = anchorConcatenation( aa[a ^ Anchor_Alternation].a, b ); int bprime = anchorConcatenation( aa[a ^ Anchor_Alternation].b, b ); return anchorAlternation( aprime, bprime ); } #endif /* Adds anchor a on a transition caracterised by its from state and its to state. */ void QRegExpEngine::addAnchors( int from, int to, int a ) { State *st = s[from]; if ( st->anchors == 0 ) - st->anchors = new QMap<int, int>; + st->anchors = new QMap<int, int>; if ( st->anchors->contains(to) ) - a = anchorAlternation( (*st->anchors)[to], a ); + a = anchorAlternation( (*st->anchors)[to], a ); st->anchors->insert( to, a ); } #ifndef QT_NO_REGEXP_OPTIM /* The two following functions provide the engine with the information needed by its matching heuristics. */ void QRegExpEngine::setupGoodStringHeuristic( int earlyStart, int lateStart, - const QString& str ) + const QString& str ) { goodEarlyStart = earlyStart; goodLateStart = lateStart; goodStr = cs ? str : str.lower(); } void QRegExpEngine::setupBadCharHeuristic( int minLen, - const QArray<int>& firstOcc ) + const QArray<int>& firstOcc ) { minl = minLen; occ1 = cs ? firstOcc : *firstOccurrenceAtZero; } /* This function chooses between the good-string and the bad-character heuristics. It computes two scores and chooses the heuristic with the highest @@ -1395,103 +1401,103 @@ void QRegExpEngine::setupBadCharHeuristic( int minLen, turns all entries of occ1 to 0.) (3) If (goodLateStart - goodEarlyStart) is big, the good-string heuristic should score less. */ void QRegExpEngine::heuristicallyChooseHeuristic() { int i; if ( minl == 0 ) - return; + return; /* Magic formula: The good string has to constitute a good proportion of the minimum-length string, and appear at a more-or-less known index. */ int goodStringScore = ( 64 * goodStr.length() / minl ) - - ( goodLateStart - goodEarlyStart ); + ( goodLateStart - goodEarlyStart ); /* Less magic formula: We pick a couple of characters at random, and check whether they are good or bad. */ int badCharScore = 0; int step = QMAX( 1, NumBadChars / 32 ); for ( i = 1; i < NumBadChars; i += step ) { - if ( occ1[i] == NoOccurrence ) - badCharScore += minl; - else - badCharScore += occ1[i]; + if ( occ1[i] == NoOccurrence ) + badCharScore += minl; + else + badCharScore += occ1[i]; } badCharScore /= minl; useGoodStringHeuristic = ( goodStringScore > badCharScore ); } #endif #if defined(QT_DEBUG) void QRegExpEngine::dump() const { int i, j; - qDebug( "Case %ssensitive engine", cs ? "" : "in" ); - qDebug( " States" ); + odebug << "Case " << (cs ? "" : "in") << "sensitive engine" << oendl; + odebug << " States" << oendl; for ( i = 0; i < ns; i++ ) { - qDebug( " %d%s", i, - i == InitialState ? " (initial)" : - i == FinalState ? " (final)" : "" ); + odebug << " " << i + << (i == InitialState ? " (initial)" : i == FinalState ? " (final)" : "") << oendl; + #ifndef QT_NO_REGEXP_CAPTURE - qDebug( " in atom %d", s[i]->atom ); + odebug << " in atom " << s[i]->atom << oendl; #endif - int m = s[i]->match; - if ( (m & CharClassBit) != 0 ) { - qDebug( " match character class %d", m ^ CharClassBit ); + int m = s[i]->match; + if ( (m & CharClassBit) != 0 ) { + odebug << " match character class " << (m ^ CharClassBit) << oendl; #ifndef QT_NO_REGEXP_CCLASS - cl[m ^ CharClassBit]->dump(); + cl[m ^ CharClassBit]->dump(); #else - qDebug( " negative character class" ); -#endif - } else if ( (m & BackRefBit) != 0 ) { - qDebug( " match back-reference %d", m ^ BackRefBit ); - } else if ( m >= 0x20 && m <= 0x7e ) { - qDebug( " match 0x%.4x (%c)", m, m ); - } else { - qDebug( " match 0x%.4x", m ); - } - for ( j = 0; j < (int) s[i]->outs.size(); j++ ) { - int next = s[i]->outs[j]; - qDebug( " -> %d", next ); - if ( s[i]->reenter != 0 && s[i]->reenter->contains(next) ) - qDebug( " [reenter %d]", (*s[i]->reenter)[next] ); - if ( s[i]->anchors != 0 && at(*s[i]->anchors, next) != 0 ) - qDebug( " [anchors 0x%.8x]", (*s[i]->anchors)[next] ); - } + odebug << " negative character class" << oendl; +#endif + } else if ( (m & BackRefBit) != 0 ) { + odebug << " match back-reference " << (m ^ BackRefBit) << oendl; + } else if ( m >= 0x20 && m <= 0x7e ) { + odebug << " match " << QString().sprintf( "0x%.4x", m) << " (" << m << ")" << oendl; + + } else { + odebug << " match " << QString().sprintf( "0x%.4x", m) << oendl; + } + for ( j = 0; j < (int) s[i]->outs.size(); j++ ) { + int next = s[i]->outs[j]; + odebug << " -> " << next << oendl; + if ( s[i]->reenter != 0 && s[i]->reenter->contains(next) ) + odebug << " [reenter " << (*s[i]->reenter)[next] << "]" << oendl; + if ( s[i]->anchors != 0 && at(*s[i]->anchors, next) != 0 ) + odebug << " [anchors " << QString().sprintf( "0x%.8x]", (*s[i]->anchors)[next] ) << oendl; + } } #ifndef QT_NO_REGEXP_CAPTURE if ( nf > 0 ) { - qDebug( " Atom Parent Capture" ); - for ( i = 0; i < nf; i++ ) - qDebug( " %6d %6d %6d", i, f[i].parent, f[i].capture ); + odebug << " Atom Parent Capture" << oendl; + for ( i = 0; i < nf; i++ ) + odebug << QString().sprintf(" %6d %6d %6d", i, f[i].parent, f[i].capture ) << oendl; } #endif #ifndef QT_NO_REGEXP_ANCHOR_ALT for ( i = 0; i < (int) aa.size(); i++ ) - qDebug( " Anchor alternation 0x%.8x: 0x%.8x 0x%.9x", i, aa[i].a, - aa[i].b ); + odebug << QString().sprintf(" Anchor alternation 0x%.8x: 0x%.8x 0x%.9x", i, aa[i].a, aa[i].b ) << oendl; #endif } #endif void QRegExpEngine::setup( bool caseSensitive ) { #ifndef QT_NO_REGEXP_OPTIM if ( engCount++ == 0 ) { - noOccurrences = new QArray<int>( NumBadChars ); - firstOccurrenceAtZero = new QArray<int>( NumBadChars ); - noOccurrences->fill( NoOccurrence ); - firstOccurrenceAtZero->fill( 0 ); + noOccurrences = new QArray<int>( NumBadChars ); + firstOccurrenceAtZero = new QArray<int>( NumBadChars ); + noOccurrences->fill( NoOccurrence ); + firstOccurrenceAtZero->fill( 0 ); } #endif s.setAutoDelete( TRUE ); s.resize( 32 ); ns = 0; #ifndef QT_NO_REGEXP_CAPTURE f.resize( 32 ); nf = 0; @@ -1519,17 +1525,17 @@ void QRegExpEngine::setup( bool caseSensitive ) occ1 = *firstOccurrenceAtZero; #endif mmCapturedNoMatch.fill( -1, 2 ); } int QRegExpEngine::setupState( int match ) { if ( (ns & (ns + 1)) == 0 && ns + 1 >= (int) s.size() ) - s.resize( (ns + 1) << 1 ); + s.resize( (ns + 1) << 1 ); #ifndef QT_NO_REGEXP_CAPTURE s.insert( ns, new State(cf, match) ); #else s.insert( ns, new State(match) ); #endif return ns++; } @@ -1537,119 +1543,119 @@ int QRegExpEngine::setupState( int match ) /* Functions startAtom() and finishAtom() should be called to delimit atoms. When a state is created, it is assigned to the current atom. The information is later used for capturing. */ int QRegExpEngine::startAtom( bool capture ) { if ( (nf & (nf + 1)) == 0 && nf + 1 >= (int) f.size() ) - f.resize( (nf + 1) << 1 ); + f.resize( (nf + 1) << 1 ); f[nf].parent = cf; cf = nf++; f[cf].capture = capture ? ncap++ : -1; return cf; } #endif #ifndef QT_NO_REGEXP_LOOKAHEAD /* Creates a lookahead anchor. */ int QRegExpEngine::addLookahead( QRegExpEngine *eng, bool negative ) { int n = ahead.size(); if ( n == MaxLookaheads ) { - yyError = TRUE; - return 0; + yyError = TRUE; + return 0; } ahead.resize( n + 1 ); ahead.insert( n, new Lookahead(eng, negative) ); return Anchor_FirstLookahead << n; } #endif #ifndef QT_NO_REGEXP_CAPTURE /* We want the longest leftmost captures. */ bool QRegExpEngine::isBetterCapture( const int *begin1, const int *end1, - const int *begin2, const int *end2 ) + const int *begin2, const int *end2 ) { for ( int i = 0; i < ncap; i++ ) { - int delta = begin2[i] - begin1[i]; // it has to start early... - if ( delta == 0 ) - delta = end1[i] - end2[i]; // ...and end late (like a party) + int delta = begin2[i] - begin1[i]; // it has to start early... + if ( delta == 0 ) + delta = end1[i] - end2[i]; // ...and end late (like a party) - if ( delta != 0 ) - return delta > 0; + if ( delta != 0 ) + return delta > 0; } return FALSE; } #endif /* Returns TRUE if anchor a matches at position mmPos + i in the input string, otherwise FALSE. */ bool QRegExpEngine::testAnchor( int i, int a, const int *capBegin ) { int j; #ifndef QT_NO_REGEXP_ANCHOR_ALT if ( (a & Anchor_Alternation) != 0 ) { - return testAnchor( i, aa[a ^ Anchor_Alternation].a, capBegin ) || - testAnchor( i, aa[a ^ Anchor_Alternation].b, capBegin ); + return testAnchor( i, aa[a ^ Anchor_Alternation].a, capBegin ) || + testAnchor( i, aa[a ^ Anchor_Alternation].b, capBegin ); } #endif if ( (a & Anchor_Caret) != 0 ) { - if ( mmPos + i != 0 ) - return FALSE; + if ( mmPos + i != 0 ) + return FALSE; } if ( (a & Anchor_Dollar) != 0 ) { - if ( mmPos + i != mmLen ) - return FALSE; + if ( mmPos + i != mmLen ) + return FALSE; } #ifndef QT_NO_REGEXP_ESCAPE if ( (a & (Anchor_Word | Anchor_NonWord)) != 0 ) { - bool before = FALSE, after = FALSE; - if ( mmPos + i != 0 ) - before = mmIn[mmPos + i - 1].isLetterOrNumber(); - if ( mmPos + i != mmLen ) - after = mmIn[mmPos + i].isLetterOrNumber(); - if ( (a & Anchor_Word) != 0 && (before == after) ) - return FALSE; - if ( (a & Anchor_NonWord) != 0 && (before != after) ) - return FALSE; + bool before = FALSE, after = FALSE; + if ( mmPos + i != 0 ) + before = mmIn[mmPos + i - 1].isLetterOrNumber(); + if ( mmPos + i != mmLen ) + after = mmIn[mmPos + i].isLetterOrNumber(); + if ( (a & Anchor_Word) != 0 && (before == after) ) + return FALSE; + if ( (a & Anchor_NonWord) != 0 && (before != after) ) + return FALSE; } #endif #ifndef QT_NO_REGEXP_LOOKAHEAD bool catchx = TRUE; if ( (a & Anchor_LookaheadMask) != 0 ) { - QConstString cstr = QConstString( (QChar *) mmIn + mmPos + i, - mmLen - mmPos - i ); - for ( j = 0; j < (int) ahead.size(); j++ ) { - if ( (a & (Anchor_FirstLookahead << j)) != 0 ) { - catchx = ( ahead[j]->eng->match(cstr.string(), 0, TRUE, - TRUE)[0] == 0 ); - if ( catchx == ahead[j]->neg ) - return FALSE; - } - } + QConstString cstr = QConstString( (QChar *) mmIn + mmPos + i, + mmLen - mmPos - i ); + for ( j = 0; j < (int) ahead.size(); j++ ) { + if ( (a & (Anchor_FirstLookahead << j)) != 0 ) { + catchx = ( ahead[j]->eng->match(cstr.string(), 0, TRUE, + TRUE)[0] == 0 ); + if ( catchx == ahead[j]->neg ) + return FALSE; + } + } } #endif #ifndef QT_NO_REGEXP_CAPTURE #ifndef QT_NO_REGEXP_BACKREF for ( j = 0; j < nbrefs; j++ ) { - if ( (a & (Anchor_BackRef1Empty << j)) != 0 ) { - if ( capBegin[j] != EmptyCapture ) - return FALSE; - } + if ( (a & (Anchor_BackRef1Empty << j)) != 0 ) { + if ( capBegin[j] != EmptyCapture ) + return FALSE; + } } #endif #endif return TRUE; } #ifndef QT_NO_REGEXP_OPTIM /* @@ -1658,27 +1664,27 @@ bool QRegExpEngine::testAnchor( int i, int a, const int *capBegin ) in performance. */ bool QRegExpEngine::goodStringMatch() { int k = mmPos + goodEarlyStart; while ( (k = mmStr->find(goodStr, k, cs)) != -1 ) { - int from = k - goodLateStart; - int to = k - goodEarlyStart; - if ( from > mmPos ) - mmPos = from; - - while ( mmPos <= to ) { - if ( matchHere() ) - return TRUE; - mmPos++; - } - k++; + int from = k - goodLateStart; + int to = k - goodEarlyStart; + if ( from > mmPos ) + mmPos = from; + + while ( mmPos <= to ) { + if ( matchHere() ) + return TRUE; + mmPos++; + } + k++; } return FALSE; } bool QRegExpEngine::badCharMatch() { int slideHead = 0; int slideNext = 0; @@ -1686,74 +1692,74 @@ bool QRegExpEngine::badCharMatch() int lastPos = mmLen - minl; memset( mmSlideTab, 0, mmSlideTabSize * sizeof(int) ); /* Set up the slide table, used for the bad-character heuristic, using the table of first occurrence of each character. */ for ( i = 0; i < minl; i++ ) { - int sk = occ1[BadChar(mmIn[mmPos + i])]; - if ( sk == NoOccurrence ) - sk = i + 1; - if ( sk > 0 ) { - int k = i + 1 - sk; - if ( k < 0 ) { - sk = i + 1; - k = 0; - } - if ( sk > mmSlideTab[k] ) - mmSlideTab[k] = sk; - } + int sk = occ1[BadChar(mmIn[mmPos + i])]; + if ( sk == NoOccurrence ) + sk = i + 1; + if ( sk > 0 ) { + int k = i + 1 - sk; + if ( k < 0 ) { + sk = i + 1; + k = 0; + } + if ( sk > mmSlideTab[k] ) + mmSlideTab[k] = sk; + } } if ( mmPos > lastPos ) - return FALSE; + return FALSE; while ( TRUE ) { - if ( ++slideNext >= mmSlideTabSize ) - slideNext = 0; - if ( mmSlideTab[slideHead] > 0 ) { - if ( mmSlideTab[slideHead] - 1 > mmSlideTab[slideNext] ) - mmSlideTab[slideNext] = mmSlideTab[slideHead] - 1; - mmSlideTab[slideHead] = 0; - } else { - if ( matchHere() ) - return TRUE; - } - - if ( mmPos == lastPos ) - break; - - /* - Update the slide table. This code has much in common with the - initialization code. - */ - int sk = occ1[BadChar(mmIn[mmPos + minl])]; - if ( sk == NoOccurrence ) { - mmSlideTab[slideNext] = minl; - } else if ( sk > 0 ) { - int k = slideNext + minl - sk; - if ( k >= mmSlideTabSize ) - k -= mmSlideTabSize; - if ( sk > mmSlideTab[k] ) - mmSlideTab[k] = sk; - } - slideHead = slideNext; - mmPos++; + if ( ++slideNext >= mmSlideTabSize ) + slideNext = 0; + if ( mmSlideTab[slideHead] > 0 ) { + if ( mmSlideTab[slideHead] - 1 > mmSlideTab[slideNext] ) + mmSlideTab[slideNext] = mmSlideTab[slideHead] - 1; + mmSlideTab[slideHead] = 0; + } else { + if ( matchHere() ) + return TRUE; + } + + if ( mmPos == lastPos ) + break; + + /* + Update the slide table. This code has much in common with the + initialization code. + */ + int sk = occ1[BadChar(mmIn[mmPos + minl])]; + if ( sk == NoOccurrence ) { + mmSlideTab[slideNext] = minl; + } else if ( sk > 0 ) { + int k = slideNext + minl - sk; + if ( k >= mmSlideTabSize ) + k -= mmSlideTabSize; + if ( sk > mmSlideTab[k] ) + mmSlideTab[k] = sk; + } + slideHead = slideNext; + mmPos++; } return FALSE; } #else bool QRegExpEngine::bruteMatch() { while ( mmPos <= mmLen ) { - if ( matchHere() ) - return TRUE; - mmPos++; + if ( matchHere() ) + return TRUE; + mmPos++; } return FALSE; } #endif /* Here's the core of the engine. It tries to do a match here and now. */ @@ -1763,362 +1769,362 @@ bool QRegExpEngine::matchHere() int i = 0, j, k, m; bool match = FALSE; mmMatchedLen = -1; mmCurStack[0] = InitialState; #ifndef QT_NO_REGEXP_CAPTURE if ( ncap > 0 ) { - for ( j = 0; j < ncap; j++ ) { - mmCurCapBegin[j] = EmptyCapture; - mmCurCapEnd[j] = EmptyCapture; - } + for ( j = 0; j < ncap; j++ ) { + mmCurCapBegin[j] = EmptyCapture; + mmCurCapEnd[j] = EmptyCapture; + } } #endif #ifndef QT_NO_REGEXP_BACKREF int *zzZ = 0; while ( (ncur > 0 || mmSleeping.count() > 0) && i <= mmLen - mmPos && - !match ) + !match ) #else while ( ncur > 0 && i <= mmLen - mmPos && !match ) #endif { - int ch = ( i < mmLen - mmPos ) ? mmIn[mmPos + i].unicode() : 0; - for ( j = 0; j < ncur; j++ ) { - int cur = mmCurStack[j]; - State *scur = s[cur]; - QArray<int>& outs = scur->outs; - for ( k = 0; k < (int) outs.size(); k++ ) { - int next = outs[k]; - State *snext = s[next]; - bool in = TRUE; + int ch = ( i < mmLen - mmPos ) ? mmIn[mmPos + i].unicode() : 0; + for ( j = 0; j < ncur; j++ ) { + int cur = mmCurStack[j]; + State *scur = s[cur]; + QArray<int>& outs = scur->outs; + for ( k = 0; k < (int) outs.size(); k++ ) { + int next = outs[k]; + State *snext = s[next]; + bool in = TRUE; #ifndef QT_NO_REGEXP_BACKREF - int needSomeSleep = 0; -#endif - - /* - First, check if the anchors are anchored properly. - */ - if ( scur->anchors != 0 ) { - int a = at( *scur->anchors, next ); - if ( a != 0 && !testAnchor(i, a, mmCurCapBegin + j * ncap) ) - in = FALSE; - } - /* - If indeed they are, check if the input character is correct - for this transition. - */ - if ( in ) { - m = snext->match; - if ( (m & (CharClassBit | BackRefBit)) == 0 ) { - if ( cs ) - in = ( m == ch ); - else - in = ( QChar(m).lower() == QChar(ch).lower() ); - } else if ( next == FinalState ) { - mmMatchedLen = i; - match = mmMinimal; - in = TRUE; - } else if ( (m & CharClassBit) != 0 ) { + int needSomeSleep = 0; +#endif + + /* + First, check if the anchors are anchored properly. + */ + if ( scur->anchors != 0 ) { + int a = at( *scur->anchors, next ); + if ( a != 0 && !testAnchor(i, a, mmCurCapBegin + j * ncap) ) + in = FALSE; + } + /* + If indeed they are, check if the input character is correct + for this transition. + */ + if ( in ) { + m = snext->match; + if ( (m & (CharClassBit | BackRefBit)) == 0 ) { + if ( cs ) + in = ( m == ch ); + else + in = ( QChar(m).lower() == QChar(ch).lower() ); + } else if ( next == FinalState ) { + mmMatchedLen = i; + match = mmMinimal; + in = TRUE; + } else if ( (m & CharClassBit) != 0 ) { #ifndef QT_NO_REGEXP_CCLASS - const CharClass *cc = cl[m ^ CharClassBit]; - if ( cs ) - in = cc->in( ch ); - else if ( cc->negative() ) - in = cc->in( QChar(ch).lower() ) && - cc->in( QChar(ch).upper() ); - else - in = cc->in( QChar(ch).lower() ) || - cc->in( QChar(ch).upper() ); + const CharClass *cc = cl[m ^ CharClassBit]; + if ( cs ) + in = cc->in( ch ); + else if ( cc->negative() ) + in = cc->in( QChar(ch).lower() ) && + cc->in( QChar(ch).upper() ); + else + in = cc->in( QChar(ch).lower() ) || + cc->in( QChar(ch).upper() ); #endif #ifndef QT_NO_REGEXP_BACKREF - } else { /* ( (m & BackRefBit) != 0 ) */ - int bref = m ^ BackRefBit; - int ell = j * ncap + ( bref - 1 ); - - in = bref <= ncap && mmCurCapBegin[ell] != EmptyCapture; - if ( in ) { - if ( cs ) - in = ( mmIn[mmPos + mmCurCapBegin[ell]] - == QChar(ch) ); - else - in = ( mmIn[mmPos + mmCurCapBegin[ell]].lower() - == QChar(ch).lower() ); - } - - if ( in ) { - int delta; - if ( mmCurCapEnd[ell] == EmptyCapture ) - delta = i - mmCurCapBegin[ell]; - else - delta = mmCurCapEnd[ell] - mmCurCapBegin[ell]; - - in = ( delta <= mmLen - mmPos ); - if ( in && delta > 1 ) { - int n; - if ( cs ) { - for ( n = 1; n < delta; n++ ) { - if ( mmIn[mmPos + - mmCurCapBegin[ell] + n] != - mmIn[mmPos + i + n] ) - break; - } - } else { - for ( n = 1; n < delta; n++ ) { - QChar a = mmIn[mmPos + - mmCurCapBegin[ell] + n]; - QChar b = mmIn[mmPos + i + n]; - if ( a.lower() != b.lower() ) - break; - } - } - in = ( n == delta ); - if ( in ) - needSomeSleep = delta - 1; - } - } -#endif - } - } - - /* - All is right. We must now update our data structures. - */ - if ( in ) { + } else { /* ( (m & BackRefBit) != 0 ) */ + int bref = m ^ BackRefBit; + int ell = j * ncap + ( bref - 1 ); + + in = bref <= ncap && mmCurCapBegin[ell] != EmptyCapture; + if ( in ) { + if ( cs ) + in = ( mmIn[mmPos + mmCurCapBegin[ell]] + == QChar(ch) ); + else + in = ( mmIn[mmPos + mmCurCapBegin[ell]].lower() + == QChar(ch).lower() ); + } + + if ( in ) { + int delta; + if ( mmCurCapEnd[ell] == EmptyCapture ) + delta = i - mmCurCapBegin[ell]; + else + delta = mmCurCapEnd[ell] - mmCurCapBegin[ell]; + + in = ( delta <= mmLen - mmPos ); + if ( in && delta > 1 ) { + int n; + if ( cs ) { + for ( n = 1; n < delta; n++ ) { + if ( mmIn[mmPos + + mmCurCapBegin[ell] + n] != + mmIn[mmPos + i + n] ) + break; + } + } else { + for ( n = 1; n < delta; n++ ) { + QChar a = mmIn[mmPos + + mmCurCapBegin[ell] + n]; + QChar b = mmIn[mmPos + i + n]; + if ( a.lower() != b.lower() ) + break; + } + } + in = ( n == delta ); + if ( in ) + needSomeSleep = delta - 1; + } + } +#endif + } + } + + /* + All is right. We must now update our data structures. + */ + if ( in ) { #ifndef QT_NO_REGEXP_CAPTURE - int *capBegin, *capEnd; -#endif - /* - If the next state was not encountered yet, all is fine. - */ - if ( (m = mmInNextStack[next]) == -1 ) { - m = nnext++; - mmNextStack[m] = next; - mmInNextStack[next] = m; + int *capBegin, *capEnd; +#endif + /* + If the next state was not encountered yet, all is fine. + */ + if ( (m = mmInNextStack[next]) == -1 ) { + m = nnext++; + mmNextStack[m] = next; + mmInNextStack[next] = m; #ifndef QT_NO_REGEXP_CAPTURE - capBegin = mmNextCapBegin + m * ncap; - capEnd = mmNextCapEnd + m * ncap; + capBegin = mmNextCapBegin + m * ncap; + capEnd = mmNextCapEnd + m * ncap; - /* - Otherwise, we'll first maintain captures in temporary - arrays, and decide at the end whether it's best to keep - the previous capture zones or the new ones. - */ - } else { - capBegin = mmTempCapBegin; - capEnd = mmTempCapEnd; + /* + Otherwise, we'll first maintain captures in temporary + arrays, and decide at the end whether it's best to keep + the previous capture zones or the new ones. + */ + } else { + capBegin = mmTempCapBegin; + capEnd = mmTempCapEnd; #endif - } + } #ifndef QT_NO_REGEXP_CAPTURE - /* - Updating the capture zones is much of a task. - */ - if ( ncap > 0 ) { - memcpy( capBegin, mmCurCapBegin + j * ncap, - ncap * sizeof(int) ); - memcpy( capEnd, mmCurCapEnd + j * ncap, - ncap * sizeof(int) ); - int c = scur->atom, n = snext->atom; - int p = -1, q = -1; - int cap; - - /* - Lemma 1. For any x in the range [0..nf), we have - f[x].parent < x. - - Proof. By looking at startAtom(), it is clear that - cf < nf holds all the time, and thus that - f[nf].parent < nf. - */ - - /* - If we are reentering an atom, we empty all capture - zones inside it. - */ - if ( scur->reenter != 0 && - (q = at(*scur->reenter, next)) != 0 ) { - QBitArray b; - b.fill( FALSE, nf ); - b.setBit( q, TRUE ); - for ( int ell = q + 1; ell < nf; ell++ ) { - if ( b.testBit(f[ell].parent) ) { - b.setBit( ell, TRUE ); - cap = f[ell].capture; - if ( cap >= 0 ) { - capBegin[cap] = EmptyCapture; - capEnd[cap] = EmptyCapture; - } - } - } - p = f[q].parent; - - /* - Otherwise, close the capture zones we are leaving. - We are leaving f[c].capture, f[f[c].parent].capture, - f[f[f[c].parent].parent].capture, ..., until - f[x].capture, with x such that f[x].parent is the - youngest common ancestor for c and n. - - We go up along c's and n's ancestry until we find x. - */ - } else { - p = c; - q = n; - while ( p != q ) { - if ( p > q ) { - cap = f[p].capture; - if ( cap >= 0 ) { - if ( capBegin[cap] == i ) { - capBegin[cap] = EmptyCapture; - capEnd[cap] = EmptyCapture; - } else { - capEnd[cap] = i; - } - } - p = f[p].parent; - } else { - q = f[q].parent; - } - } - } - - /* - In any case, we now open the capture zones we are - entering. We work upwards from n until we reach p - (the parent of the atom we reenter or the youngest - common ancestor). - */ - while ( n > p ) { - cap = f[n].capture; - if ( cap >= 0 ) { - capBegin[cap] = i; - capEnd[cap] = EmptyCapture; - } - n = f[n].parent; - } - /* - If the next state was already in mmNextStack, we must - choose carefully which capture zones we want to keep. - */ - if ( capBegin == mmTempCapBegin && - isBetterCapture(capBegin, capEnd, - mmNextCapBegin + m * ncap, - mmNextCapEnd + m * ncap) ) { - memcpy( mmNextCapBegin + m * ncap, capBegin, - ncap * sizeof(int) ); - memcpy( mmNextCapEnd + m * ncap, capEnd, - ncap * sizeof(int) ); - } - } + /* + Updating the capture zones is much of a task. + */ + if ( ncap > 0 ) { + memcpy( capBegin, mmCurCapBegin + j * ncap, + ncap * sizeof(int) ); + memcpy( capEnd, mmCurCapEnd + j * ncap, + ncap * sizeof(int) ); + int c = scur->atom, n = snext->atom; + int p = -1, q = -1; + int cap; + + /* + Lemma 1. For any x in the range [0..nf), we have + f[x].parent < x. + + Proof. By looking at startAtom(), it is clear that + cf < nf holds all the time, and thus that + f[nf].parent < nf. + */ + + /* + If we are reentering an atom, we empty all capture + zones inside it. + */ + if ( scur->reenter != 0 && + (q = at(*scur->reenter, next)) != 0 ) { + QBitArray b; + b.fill( FALSE, nf ); + b.setBit( q, TRUE ); + for ( int ell = q + 1; ell < nf; ell++ ) { + if ( b.testBit(f[ell].parent) ) { + b.setBit( ell, TRUE ); + cap = f[ell].capture; + if ( cap >= 0 ) { + capBegin[cap] = EmptyCapture; + capEnd[cap] = EmptyCapture; + } + } + } + p = f[q].parent; + + /* + Otherwise, close the capture zones we are leaving. + We are leaving f[c].capture, f[f[c].parent].capture, + f[f[f[c].parent].parent].capture, ..., until + f[x].capture, with x such that f[x].parent is the + youngest common ancestor for c and n. + + We go up along c's and n's ancestry until we find x. + */ + } else { + p = c; + q = n; + while ( p != q ) { + if ( p > q ) { + cap = f[p].capture; + if ( cap >= 0 ) { + if ( capBegin[cap] == i ) { + capBegin[cap] = EmptyCapture; + capEnd[cap] = EmptyCapture; + } else { + capEnd[cap] = i; + } + } + p = f[p].parent; + } else { + q = f[q].parent; + } + } + } + + /* + In any case, we now open the capture zones we are + entering. We work upwards from n until we reach p + (the parent of the atom we reenter or the youngest + common ancestor). + */ + while ( n > p ) { + cap = f[n].capture; + if ( cap >= 0 ) { + capBegin[cap] = i; + capEnd[cap] = EmptyCapture; + } + n = f[n].parent; + } + /* + If the next state was already in mmNextStack, we must + choose carefully which capture zones we want to keep. + */ + if ( capBegin == mmTempCapBegin && + isBetterCapture(capBegin, capEnd, + mmNextCapBegin + m * ncap, + mmNextCapEnd + m * ncap) ) { + memcpy( mmNextCapBegin + m * ncap, capBegin, + ncap * sizeof(int) ); + memcpy( mmNextCapEnd + m * ncap, capEnd, + ncap * sizeof(int) ); + } + } #ifndef QT_NO_REGEXP_BACKREF - /* - We are done with updating the capture zones. It's now - time to put the next state to sleep, if it needs to, and - to remove it from mmNextStack. - */ - if ( needSomeSleep > 0 ) { - zzZ = new int[1 + 2 * ncap]; - zzZ[0] = next; - if ( ncap > 0 ) { - memcpy( zzZ + 1, capBegin, ncap * sizeof(int) ); - memcpy( zzZ + 1 + ncap, capEnd, - ncap * sizeof(int) ); - } - mmInNextStack[mmNextStack[--nnext]] = -1; - mmSleeping.insert( i + needSomeSleep, zzZ ); - } -#endif -#endif - } - } - } + /* + We are done with updating the capture zones. It's now + time to put the next state to sleep, if it needs to, and + to remove it from mmNextStack. + */ + if ( needSomeSleep > 0 ) { + zzZ = new int[1 + 2 * ncap]; + zzZ[0] = next; + if ( ncap > 0 ) { + memcpy( zzZ + 1, capBegin, ncap * sizeof(int) ); + memcpy( zzZ + 1 + ncap, capEnd, + ncap * sizeof(int) ); + } + mmInNextStack[mmNextStack[--nnext]] = -1; + mmSleeping.insert( i + needSomeSleep, zzZ ); + } +#endif +#endif + } + } + } #ifndef QT_NO_REGEXP_CAPTURE - /* - If we reached the final state, hurray! Copy the captured zone. - */ - if ( ncap > 0 && (m = mmInNextStack[FinalState]) != -1 ) { - memcpy( mmCapBegin, mmNextCapBegin + m * ncap, ncap * sizeof(int) ); - memcpy( mmCapEnd, mmNextCapEnd + m * ncap, ncap * sizeof(int) ); - } + /* + If we reached the final state, hurray! Copy the captured zone. + */ + if ( ncap > 0 && (m = mmInNextStack[FinalState]) != -1 ) { + memcpy( mmCapBegin, mmNextCapBegin + m * ncap, ncap * sizeof(int) ); + memcpy( mmCapEnd, mmNextCapEnd + m * ncap, ncap * sizeof(int) ); + } #ifndef QT_NO_REGEXP_BACKREF - /* - It's time to wake up the sleepers. - */ - if ( mmSleeping.count() > 0 ) { - while ( (zzZ = mmSleeping.take(i)) != 0 ) { - int next = zzZ[0]; - int *capBegin = zzZ + 1; - int *capEnd = zzZ + 1 + ncap; - bool copyOver = TRUE; - - if ( (m = mmInNextStack[zzZ[0]]) == -1 ) { - m = nnext++; - mmNextStack[m] = next; - mmInNextStack[next] = m; - } else { - copyOver = isBetterCapture( mmNextCapBegin + m * ncap, - mmNextCapEnd + m * ncap, - capBegin, capEnd ); - } - if ( copyOver ) { - memcpy( mmNextCapBegin + m * ncap, capBegin, - ncap * sizeof(int) ); - memcpy( mmNextCapEnd + m * ncap, capEnd, - ncap * sizeof(int) ); - } - delete[] zzZ; - } - } -#endif -#endif - for ( j = 0; j < nnext; j++ ) - mmInNextStack[mmNextStack[j]] = -1; - - qSwap( mmCurStack, mmNextStack ); + /* + It's time to wake up the sleepers. + */ + if ( mmSleeping.count() > 0 ) { + while ( (zzZ = mmSleeping.take(i)) != 0 ) { + int next = zzZ[0]; + int *capBegin = zzZ + 1; + int *capEnd = zzZ + 1 + ncap; + bool copyOver = TRUE; + + if ( (m = mmInNextStack[zzZ[0]]) == -1 ) { + m = nnext++; + mmNextStack[m] = next; + mmInNextStack[next] = m; + } else { + copyOver = isBetterCapture( mmNextCapBegin + m * ncap, + mmNextCapEnd + m * ncap, + capBegin, capEnd ); + } + if ( copyOver ) { + memcpy( mmNextCapBegin + m * ncap, capBegin, + ncap * sizeof(int) ); + memcpy( mmNextCapEnd + m * ncap, capEnd, + ncap * sizeof(int) ); + } + delete[] zzZ; + } + } +#endif +#endif + for ( j = 0; j < nnext; j++ ) + mmInNextStack[mmNextStack[j]] = -1; + + qSwap( mmCurStack, mmNextStack ); #ifndef QT_NO_REGEXP_CAPTURE - qSwap( mmCurCapBegin, mmNextCapBegin ); - qSwap( mmCurCapEnd, mmNextCapEnd ); + qSwap( mmCurCapBegin, mmNextCapBegin ); + qSwap( mmCurCapEnd, mmNextCapEnd ); #endif - ncur = nnext; - nnext = 0; - i++; + ncur = nnext; + nnext = 0; + i++; } #ifndef QT_NO_REGEXP_BACKREF /* If minimal matching is enabled, we might have some sleepers left. */ while ( !mmSleeping.isEmpty() ) { - zzZ = mmSleeping.take( *QIntDictIterator<int>(mmSleeping) ); - delete[] zzZ; + zzZ = mmSleeping.take( *QIntDictIterator<int>(mmSleeping) ); + delete[] zzZ; } #endif match = ( mmMatchedLen >= 0 ); if ( !match ) - mmMatchedLen = i - 1; + mmMatchedLen = i - 1; return match; } #ifndef QT_NO_REGEXP_CCLASS QRegExpEngine::CharClass::CharClass() : c( 0 ), n( FALSE ) #ifndef QT_NO_REGEXP_OPTIM , occ1( *noOccurrences ) #endif { } QRegExpEngine::CharClass& QRegExpEngine::CharClass::operator=( - const CharClass& cc ) + const CharClass& cc ) { c = cc.c; r = cc.r.copy(); n = cc.n; #ifndef QT_NO_REGEXP_OPTIM occ1 = cc.occ1; #endif return *this; @@ -2145,69 +2151,69 @@ void QRegExpEngine::CharClass::addCategories( int cats ) #ifndef QT_NO_REGEXP_OPTIM occ1 = *firstOccurrenceAtZero; #endif } void QRegExpEngine::CharClass::addRange( ushort from, ushort to ) { if ( from > to ) - qSwap( from, to ); + qSwap( from, to ); int n = r.size(); r.resize( n + 1 ); r[n].from = from; r[n].to = to; #ifndef QT_NO_REGEXP_OPTIM int i; if ( to - from < NumBadChars ) { - occ1.detach(); - 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; - } + occ1.detach(); + if ( from % NumBadChars <= to % NumBadChars ) { + for ( i = from % NumBadChars; i <= to % NumBadChars; i++ ) + occ1[i] = 0; } else { - occ1 = *firstOccurrenceAtZero; + for ( i = 0; i <= to % NumBadChars; i++ ) + occ1[i] = 0; + for ( i = from % NumBadChars; i < NumBadChars; i++ ) + occ1[i] = 0; + } + } else { + occ1 = *firstOccurrenceAtZero; } #endif } bool QRegExpEngine::CharClass::in( QChar ch ) const { #ifndef QT_NO_REGEXP_OPTIM if ( occ1[BadChar(ch)] == NoOccurrence ) - return n; + return n; #endif if ( c != 0 && (c & (1 << (int) ch.category())) != 0 ) - return !n; + return !n; for ( int i = 0; i < (int) r.size(); i++ ) { - if ( ch.unicode() >= r[i].from && ch.unicode() <= r[i].to ) - return !n; + if ( ch.unicode() >= r[i].from && ch.unicode() <= r[i].to ) + return !n; } return n; } #if defined(QT_DEBUG) void QRegExpEngine::CharClass::dump() const { int i; - qDebug( " %stive character class", n ? "nega" : "posi" ); + odebug << " " << (n ? "nega" : "posi") << "tive character class" << oendl; #ifndef QT_NO_REGEXP_CCLASS if ( c != 0 ) - qDebug( " categories 0x%.8x", c ); + odebug << QString().sprintf(" categories 0x%.8x", c ) << oendl; #endif for ( i = 0; i < (int) r.size(); i++ ) - qDebug( " 0x%.4x through 0x%.4x", r[i].from, r[i].to ); + odebug << QString().sprintf(" 0x%.4x through 0x%.4x", r[i].from, r[i].to ) << oendl; } #endif #endif QRegExpEngine::Box::Box( QRegExpEngine *engine ) : eng( engine ), skipanchors( 0 ) #ifndef QT_NO_REGEXP_OPTIM , earlyStart( 0 ), lateStart( 0 ), maxl( 0 ), occ1( *noOccurrences ) @@ -2270,118 +2276,118 @@ void QRegExpEngine::Box::set( const CharClass& cc ) #ifndef QT_NO_REGEXP_BACKREF void QRegExpEngine::Box::set( int bref ) { ls.resize( 1 ); ls[0] = eng->createState( bref ); rs = ls; rs.detach(); if ( bref >= 1 && bref <= MaxBackRefs ) - skipanchors = Anchor_BackRef0Empty << bref; + skipanchors = Anchor_BackRef0Empty << bref; #ifndef QT_NO_REGEXP_OPTIM maxl = InftyLen; #endif minl = 0; } #endif void QRegExpEngine::Box::cat( const Box& b ) { eng->addCatTransitions( rs, b.ls ); addAnchorsToEngine( b ); if ( minl == 0 ) { - mergeInto( &lanchors, b.lanchors ); - if ( skipanchors != 0 ) { - for ( int i = 0; i < (int) b.ls.size(); i++ ) { - int a = eng->anchorConcatenation( at(lanchors, b.ls[i]), - skipanchors ); - lanchors.insert( b.ls[i], a ); - } - } - mergeInto( &ls, b.ls ); + mergeInto( &lanchors, b.lanchors ); + if ( skipanchors != 0 ) { + for ( int i = 0; i < (int) b.ls.size(); i++ ) { + int a = eng->anchorConcatenation( at(lanchors, b.ls[i]), + skipanchors ); + lanchors.insert( b.ls[i], a ); + } + } + mergeInto( &ls, b.ls ); } if ( b.minl == 0 ) { - mergeInto( &ranchors, b.ranchors ); - if ( b.skipanchors != 0 ) { - for ( int i = 0; i < (int) rs.size(); i++ ) { - int a = eng->anchorConcatenation( at(ranchors, rs[i]), - b.skipanchors ); - ranchors.insert( rs[i], a ); - } - } - mergeInto( &rs, b.rs ); + mergeInto( &ranchors, b.ranchors ); + if ( b.skipanchors != 0 ) { + for ( int i = 0; i < (int) rs.size(); i++ ) { + int a = eng->anchorConcatenation( at(ranchors, rs[i]), + b.skipanchors ); + ranchors.insert( rs[i], a ); + } + } + mergeInto( &rs, b.rs ); } else { - ranchors = b.ranchors; - rs = b.rs; + ranchors = b.ranchors; + rs = b.rs; } #ifndef QT_NO_REGEXP_OPTIM if ( maxl != InftyLen ) { - if ( rightStr.length() + b.leftStr.length() > - QMAX(str.length(), b.str.length()) ) { - earlyStart = minl - rightStr.length(); - lateStart = maxl - rightStr.length(); - str = rightStr + b.leftStr; - } else if ( b.str.length() > str.length() ) { - earlyStart = minl + b.earlyStart; - lateStart = maxl + b.lateStart; - str = b.str; - } + if ( rightStr.length() + b.leftStr.length() > + QMAX(str.length(), b.str.length()) ) { + earlyStart = minl - rightStr.length(); + lateStart = maxl - rightStr.length(); + str = rightStr + b.leftStr; + } else if ( b.str.length() > str.length() ) { + earlyStart = minl + b.earlyStart; + lateStart = maxl + b.lateStart; + str = b.str; + } } if ( (int) leftStr.length() == maxl ) - leftStr += b.leftStr; + leftStr += b.leftStr; if ( (int) b.rightStr.length() == b.maxl ) - rightStr += b.rightStr; + rightStr += b.rightStr; else - rightStr = b.rightStr; + rightStr = b.rightStr; if ( maxl == InftyLen || b.maxl == InftyLen ) - maxl = InftyLen; + maxl = InftyLen; else - maxl += b.maxl; + maxl += b.maxl; occ1.detach(); for ( int i = 0; i < NumBadChars; i++ ) { - if ( b.occ1[i] != NoOccurrence && minl + b.occ1[i] < occ1[i] ) - occ1[i] = minl + b.occ1[i]; + if ( b.occ1[i] != NoOccurrence && minl + b.occ1[i] < occ1[i] ) + occ1[i] = minl + b.occ1[i]; } #endif minl += b.minl; if ( minl == 0 ) - skipanchors = eng->anchorConcatenation( skipanchors, b.skipanchors ); + skipanchors = eng->anchorConcatenation( skipanchors, b.skipanchors ); else - skipanchors = 0; + skipanchors = 0; } void QRegExpEngine::Box::orx( const Box& b ) { mergeInto( &ls, b.ls ); mergeInto( &lanchors, b.lanchors ); mergeInto( &rs, b.rs ); mergeInto( &ranchors, b.ranchors ); skipanchors = eng->anchorAlternation( skipanchors, b.skipanchors ); #ifndef QT_NO_REGEXP_OPTIM occ1.detach(); for ( int i = 0; i < NumBadChars; i++ ) { - if ( occ1[i] > b.occ1[i] ) - occ1[i] = b.occ1[i]; + if ( occ1[i] > b.occ1[i] ) + occ1[i] = b.occ1[i]; } earlyStart = 0; lateStart = 0; str = QString::null; leftStr = QString::null; rightStr = QString::null; if ( b.maxl > maxl ) - maxl = b.maxl; + maxl = b.maxl; #endif if ( b.minl < minl ) - minl = b.minl; + minl = b.minl; } void QRegExpEngine::Box::plus( int atom ) { #ifndef QT_NO_REGEXP_CAPTURE eng->addPlusTransitions( rs, ls, atom ); #else Q_UNUSED( atom ); @@ -2404,22 +2410,22 @@ void QRegExpEngine::Box::opt() #endif skipanchors = 0; minl = 0; } void QRegExpEngine::Box::catAnchor( int a ) { if ( a != 0 ) { - for ( int i = 0; i < (int) rs.size(); i++ ) { - a = eng->anchorConcatenation( at(ranchors, rs[i]), a ); - ranchors.insert( rs[i], a ); - } - if ( minl == 0 ) - skipanchors = eng->anchorConcatenation( skipanchors, a ); + for ( int i = 0; i < (int) rs.size(); i++ ) { + a = eng->anchorConcatenation( at(ranchors, rs[i]), a ); + ranchors.insert( rs[i], a ); + } + if ( minl == 0 ) + skipanchors = eng->anchorConcatenation( skipanchors, a ); } } #ifndef QT_NO_REGEXP_OPTIM void QRegExpEngine::Box::setupHeuristics() { eng->setupGoodStringHeuristic( earlyStart, lateStart, str ); @@ -2428,56 +2434,56 @@ void QRegExpEngine::Box::setupHeuristics() point. An entry of occ1 has to be at most minl or infinity for the rest of the algorithm to go well. We waited until here before normalizing these cases (instead of doing it in Box::orx()) because sometimes things improve by themselves; consider (112|1)34. */ for ( int i = 0; i < NumBadChars; i++ ) { - if ( occ1[i] != NoOccurrence && occ1[i] >= minl ) - occ1[i] = minl; + if ( occ1[i] != NoOccurrence && occ1[i] >= minl ) + occ1[i] = minl; } eng->setupBadCharHeuristic( minl, occ1 ); eng->heuristicallyChooseHeuristic(); } #endif #if defined(QT_DEBUG) void QRegExpEngine::Box::dump() const { int i; - qDebug( "Box of at least %d character%s", minl, minl == 1 ? "" : "s" ); - qDebug( " Left states:" ); + odebug << "Box of at least " << minl << " character" << (minl == 1 ? "" : "s") << oendl; + odebug << " Left states:" << oendl; for ( i = 0; i < (int) ls.size(); i++ ) { - if ( at(lanchors, ls[i]) == 0 ) - qDebug( " %d", ls[i] ); - else - qDebug( " %d [anchors 0x%.8x]", ls[i], lanchors[ls[i]] ); + if ( at(lanchors, ls[i]) == 0 ) + odebug << " " << ls[i] << oendl; + else + odebug << " " << ls[i] << QString().sprintf(" [anchors 0x%.8x]", lanchors[ls[i]]) << oendl; } - qDebug( " Right states:" ); + odebug << " Right states:" << oendl; for ( i = 0; i < (int) rs.size(); i++ ) { - if ( at(ranchors, ls[i]) == 0 ) - qDebug( " %d", rs[i] ); - else - qDebug( " %d [anchors 0x%.8x]", rs[i], ranchors[rs[i]] ); + if ( at(ranchors, ls[i]) == 0 ) + odebug << " " << rs[i] << oendl; + else + odebug << " " << rs[i] << QString().sprintf(" [anchors 0x%.8x]", ranchors[rs[i]]) << oendl; } - qDebug( " Skip anchors: 0x%.8x", skipanchors ); + odebug << QString().sprintf(" Skip anchors: 0x%.8x", skipanchors) << oendl; } #endif void QRegExpEngine::Box::addAnchorsToEngine( const Box& to ) const { for ( int i = 0; i < (int) to.ls.size(); i++ ) { - for ( int j = 0; j < (int) rs.size(); j++ ) { - int a = eng->anchorConcatenation( at(ranchors, rs[j]), - at(to.lanchors, to.ls[i]) ); - eng->addAnchors( rs[j], to.ls[i], a ); - } + for ( int j = 0; j < (int) rs.size(); j++ ) { + int a = eng->anchorConcatenation( at(ranchors, rs[j]), + at(to.lanchors, to.ls[i]) ); + eng->addAnchors( rs[j], to.ls[i], a ); + } } } int QRegExpEngine::getChar() { return ( yyPos == yyLen ) ? EOS : yyIn[yyPos++].unicode(); } @@ -2488,141 +2494,141 @@ int QRegExpEngine::getEscape() const char backTab[] = "\a\f\n\r\t\v"; ushort low; int i; #endif ushort val; int prevCh = yyCh; if ( prevCh == EOS ) { - yyError = TRUE; - return Tok_Char | '\\'; + yyError = TRUE; + return Tok_Char | '\\'; } yyCh = getChar(); #ifndef QT_NO_REGEXP_ESCAPE if ( (prevCh & ~0xff) == 0 ) { - const char *p = strchr( tab, prevCh ); - if ( p != 0 ) - return Tok_Char | backTab[p - tab]; + const char *p = strchr( tab, prevCh ); + if ( p != 0 ) + return Tok_Char | backTab[p - tab]; } #endif switch ( prevCh ) { #ifndef QT_NO_REGEXP_ESCAPE case '0': - val = 0; - for ( i = 0; i < 3; i++ ) { - if ( yyCh >= '0' && yyCh <= '7' ) - val = ( val << 3 ) | ( yyCh - '0' ); - else - break; - yyCh = getChar(); - } - if ( (val & ~0377) != 0 ) - yyError = TRUE; - return Tok_Char | val; + val = 0; + for ( i = 0; i < 3; i++ ) { + if ( yyCh >= '0' && yyCh <= '7' ) + val = ( val << 3 ) | ( yyCh - '0' ); + else + break; + yyCh = getChar(); + } + if ( (val & ~0377) != 0 ) + yyError = TRUE; + return Tok_Char | val; #endif #ifndef QT_NO_REGEXP_ESCAPE case 'B': - return Tok_NonWord; + return Tok_NonWord; #endif #ifndef QT_NO_REGEXP_CCLASS case 'D': - // see QChar::isDigit() - yyCharClass->addCategories( 0x7fffffef ); - return Tok_CharClass; + // see QChar::isDigit() + yyCharClass->addCategories( 0x7fffffef ); + return Tok_CharClass; case 'S': - // see QChar::isSpace() - yyCharClass->addCategories( 0x7ffff87f ); - yyCharClass->addRange( 0x0000, 0x0008 ); - yyCharClass->addRange( 0x000e, 0x001f ); - yyCharClass->addRange( 0x007f, 0x009f ); - return Tok_CharClass; + // see QChar::isSpace() + yyCharClass->addCategories( 0x7ffff87f ); + yyCharClass->addRange( 0x0000, 0x0008 ); + yyCharClass->addRange( 0x000e, 0x001f ); + yyCharClass->addRange( 0x007f, 0x009f ); + return Tok_CharClass; case 'W': - // see QChar::isLetterOrNumber() - yyCharClass->addCategories( 0x7ff07f8f ); - return Tok_CharClass; + // see QChar::isLetterOrNumber() + yyCharClass->addCategories( 0x7ff07f8f ); + return Tok_CharClass; #endif #ifndef QT_NO_REGEXP_ESCAPE case 'b': - return Tok_Word; + return Tok_Word; #endif #ifndef QT_NO_REGEXP_CCLASS case 'd': - // see QChar::isDigit() - yyCharClass->addCategories( 0x00000010 ); - return Tok_CharClass; + // see QChar::isDigit() + yyCharClass->addCategories( 0x00000010 ); + return Tok_CharClass; case 's': - // see QChar::isSpace() - yyCharClass->addCategories( 0x00000380 ); - yyCharClass->addRange( 0x0009, 0x000d ); - return Tok_CharClass; + // see QChar::isSpace() + yyCharClass->addCategories( 0x00000380 ); + yyCharClass->addRange( 0x0009, 0x000d ); + return Tok_CharClass; case 'w': - // see QChar::isLetterOrNumber() - yyCharClass->addCategories( 0x000f8070 ); - return Tok_CharClass; + // see QChar::isLetterOrNumber() + yyCharClass->addCategories( 0x000f8070 ); + return Tok_CharClass; #endif #ifndef QT_NO_REGEXP_ESCAPE case 'x': - val = 0; - for ( i = 0; i < 4; i++ ) { - low = QChar( yyCh ).lower(); - if ( low >= '0' && low <= '9' ) - val = ( val << 4 ) | ( low - '0' ); - else if ( low >= 'a' && low <= 'f' ) - val = ( val << 4 ) | ( low - 'a' + 10 ); - else - break; - yyCh = getChar(); - } - return Tok_Char | val; + val = 0; + for ( i = 0; i < 4; i++ ) { + low = QChar( yyCh ).lower(); + if ( low >= '0' && low <= '9' ) + val = ( val << 4 ) | ( low - '0' ); + else if ( low >= 'a' && low <= 'f' ) + val = ( val << 4 ) | ( low - 'a' + 10 ); + else + break; + yyCh = getChar(); + } + return Tok_Char | val; #endif default: - if ( prevCh >= '1' && prevCh <= '9' ) { + if ( prevCh >= '1' && prevCh <= '9' ) { #ifndef QT_NO_REGEXP_BACKREF - val = prevCh - '0'; - while ( yyCh >= '0' && yyCh <= '9' ) { - val = ( val *= 10 ) | ( yyCh - '0' ); - yyCh = getChar(); - } - return Tok_BackRef | val; + val = prevCh - '0'; + while ( yyCh >= '0' && yyCh <= '9' ) { + val = ( val *= 10 ) | ( yyCh - '0' ); + yyCh = getChar(); + } + return Tok_BackRef | val; #else - yyError = TRUE; + yyError = TRUE; #endif - } - return Tok_Char | prevCh; + } + return Tok_Char | prevCh; } } #ifndef QT_NO_REGEXP_INTERVAL int QRegExpEngine::getRep( int def ) { if ( yyCh >= '0' && yyCh <= '9' ) { - int rep = 0; - do { - rep = 10 * rep + yyCh - '0'; - if ( rep >= InftyRep ) { - yyError = TRUE; - rep = def; - } - yyCh = getChar(); - } while ( yyCh >= '0' && yyCh <= '9' ); - return rep; + int rep = 0; + do { + rep = 10 * rep + yyCh - '0'; + if ( rep >= InftyRep ) { + yyError = TRUE; + rep = def; + } + yyCh = getChar(); + } while ( yyCh >= '0' && yyCh <= '9' ); + return rep; } else { - return def; + return def; } } #endif #ifndef QT_NO_REGEXP_LOOKAHEAD void QRegExpEngine::skipChars( int n ) { if ( n > 0 ) { - yyPos += n - 1; - yyCh = getChar(); + yyPos += n - 1; + yyCh = getChar(); } } #endif void QRegExpEngine::startTokenizer( const QChar *rx, int len ) { yyIn = rx; yyPos0 = 0; @@ -2649,151 +2655,151 @@ int QRegExpEngine::getToken() #ifndef QT_NO_REGEXP_CCLASS yyCharClass->clear(); #endif yyMinRep = 0; yyMaxRep = 0; yyCh = getChar(); switch ( prevCh ) { case EOS: - yyPos0 = yyPos; - return Tok_Eos; + yyPos0 = yyPos; + return Tok_Eos; case '$': - return Tok_Dollar; + return Tok_Dollar; case '(': - if ( yyCh == '?' ) { - prevCh = getChar(); - yyCh = getChar(); - switch ( prevCh ) { + if ( yyCh == '?' ) { + prevCh = getChar(); + yyCh = getChar(); + switch ( prevCh ) { #ifndef QT_NO_REGEXP_LOOKAHEAD - case '!': - return Tok_NegLookahead; - case '=': - return Tok_PosLookahead; -#endif - case ':': - return Tok_MagicLeftParen; - default: - yyError = TRUE; - return Tok_MagicLeftParen; - } - } else { - return Tok_LeftParen; - } + case '!': + return Tok_NegLookahead; + case '=': + return Tok_PosLookahead; +#endif + case ':': + return Tok_MagicLeftParen; + default: + yyError = TRUE; + return Tok_MagicLeftParen; + } + } else { + return Tok_LeftParen; + } case ')': - return Tok_RightParen; + return Tok_RightParen; case '*': - yyMinRep = 0; - yyMaxRep = InftyRep; - return Tok_Quantifier; + yyMinRep = 0; + yyMaxRep = InftyRep; + return Tok_Quantifier; case '+': - yyMinRep = 1; - yyMaxRep = InftyRep; - return Tok_Quantifier; + yyMinRep = 1; + yyMaxRep = InftyRep; + return Tok_Quantifier; case '.': #ifndef QT_NO_REGEXP_CCLASS - yyCharClass->setNegative( TRUE ); + yyCharClass->setNegative( TRUE ); #endif - return Tok_CharClass; + return Tok_CharClass; case '?': - yyMinRep = 0; - yyMaxRep = 1; - return Tok_Quantifier; + yyMinRep = 0; + yyMaxRep = 1; + return Tok_Quantifier; case '[': #ifndef QT_NO_REGEXP_CCLASS - if ( yyCh == '^' ) { - yyCharClass->setNegative( TRUE ); - yyCh = getChar(); - } - charPending = FALSE; - rangePending = FALSE; - do { - if ( yyCh == '-' && charPending && !rangePending ) { - rangePending = TRUE; - yyCh = getChar(); - } else { - if ( charPending && !rangePending ) { - yyCharClass->addSingleton( pendingCh ); - charPending = FALSE; - } - if ( yyCh == '\\' ) { - yyCh = getChar(); - tok = getEscape(); - if ( tok == Tok_Word ) - tok = '\b'; - } else { - tok = Tok_Char | yyCh; - yyCh = getChar(); - } - if ( tok == Tok_CharClass ) { - if ( rangePending ) { - yyCharClass->addSingleton( '-' ); - yyCharClass->addSingleton( pendingCh ); - charPending = FALSE; - rangePending = FALSE; - } - } else if ( (tok & Tok_Char) != 0 ) { - if ( rangePending ) { - yyCharClass->addRange( pendingCh, tok ^ Tok_Char ); - charPending = FALSE; - rangePending = FALSE; - } else { - pendingCh = tok ^ Tok_Char; - charPending = TRUE; - } - } else { - yyError = TRUE; - } - } - } while ( yyCh != ']' && yyCh != EOS ); - if ( rangePending ) - yyCharClass->addSingleton( '-' ); - if ( charPending ) - yyCharClass->addSingleton( pendingCh ); - if ( yyCh == EOS ) - yyError = TRUE; - else - yyCh = getChar(); - return Tok_CharClass; + if ( yyCh == '^' ) { + yyCharClass->setNegative( TRUE ); + yyCh = getChar(); + } + charPending = FALSE; + rangePending = FALSE; + do { + if ( yyCh == '-' && charPending && !rangePending ) { + rangePending = TRUE; + yyCh = getChar(); + } else { + if ( charPending && !rangePending ) { + yyCharClass->addSingleton( pendingCh ); + charPending = FALSE; + } + if ( yyCh == '\\' ) { + yyCh = getChar(); + tok = getEscape(); + if ( tok == Tok_Word ) + tok = '\b'; + } else { + tok = Tok_Char | yyCh; + yyCh = getChar(); + } + if ( tok == Tok_CharClass ) { + if ( rangePending ) { + yyCharClass->addSingleton( '-' ); + yyCharClass->addSingleton( pendingCh ); + charPending = FALSE; + rangePending = FALSE; + } + } else if ( (tok & Tok_Char) != 0 ) { + if ( rangePending ) { + yyCharClass->addRange( pendingCh, tok ^ Tok_Char ); + charPending = FALSE; + rangePending = FALSE; + } else { + pendingCh = tok ^ Tok_Char; + charPending = TRUE; + } + } else { + yyError = TRUE; + } + } + } while ( yyCh != ']' && yyCh != EOS ); + if ( rangePending ) + yyCharClass->addSingleton( '-' ); + if ( charPending ) + yyCharClass->addSingleton( pendingCh ); + if ( yyCh == EOS ) + yyError = TRUE; + else + yyCh = getChar(); + return Tok_CharClass; #else - yyError = TRUE; - return Tok_Char | '['; + yyError = TRUE; + return Tok_Char | '['; #endif case '\\': - return getEscape(); + return getEscape(); case ']': - yyError = TRUE; - return Tok_Char | ']'; + yyError = TRUE; + return Tok_Char | ']'; case '^': - return Tok_Caret; + return Tok_Caret; #ifndef QT_NO_REGEXP_INTERVAL case '{': - yyMinRep = getRep( 0 ); - yyMaxRep = yyMinRep; - if ( yyCh == ',' ) { - yyCh = getChar(); - yyMaxRep = getRep( InftyRep ); - } - if ( yyMaxRep < yyMinRep ) - qSwap( yyMinRep, yyMaxRep ); - if ( yyCh != '}' ) - yyError = TRUE; - yyCh = getChar(); - return Tok_Quantifier; + yyMinRep = getRep( 0 ); + yyMaxRep = yyMinRep; + if ( yyCh == ',' ) { + yyCh = getChar(); + yyMaxRep = getRep( InftyRep ); + } + if ( yyMaxRep < yyMinRep ) + qSwap( yyMinRep, yyMaxRep ); + if ( yyCh != '}' ) + yyError = TRUE; + yyCh = getChar(); + return Tok_Quantifier; #else - yyError = TRUE; - return Tok_Char | '{'; + yyError = TRUE; + return Tok_Char | '{'; #endif case '|': - return Tok_Bar; + return Tok_Bar; case '}': - yyError = TRUE; - return Tok_Char | '}'; + yyError = TRUE; + return Tok_Char | '}'; default: - return Tok_Char | prevCh; + return Tok_Char | prevCh; } } int QRegExpEngine::parse( const QChar *pattern, int len ) { valid = TRUE; startTokenizer( pattern, len ); yyTok = getToken(); @@ -2823,17 +2829,17 @@ int QRegExpEngine::parse( const QChar *pattern, int len ) box.cat( middleBox ); box.cat( rightBox ); delete yyCharClass; yyCharClass = 0; realncap = ncap; #ifndef QT_NO_REGEXP_BACKREF if ( nbrefs > ncap ) - ncap = nbrefs; + ncap = nbrefs; #endif mmCaptured.resize( 2 + 2 * realncap ); mmCapturedNoMatch.fill( -1, 2 + 2 * realncap ); /* We use one QArray<int> for all the big data used a lot in matchHere() and friends. @@ -2858,197 +2864,197 @@ int QRegExpEngine::parse( const QChar *pattern, int len ) mmTempCapBegin = mmCurCapBegin + 4 * ncap * ns; mmTempCapEnd = mmTempCapBegin + ncap; mmCapBegin = mmTempCapBegin + 2 * ncap; mmCapEnd = mmTempCapBegin + 3 * ncap; mmSlideTab = mmTempCapBegin + 4 * ncap; if ( yyError ) - return -1; + return -1; #ifndef QT_NO_REGEXP_OPTIM State *sinit = s[InitialState]; caretAnchored = ( sinit->anchors != 0 ); if ( caretAnchored ) { - QMap<int, int>& anchors = *sinit->anchors; - QMap<int, int>::ConstIterator a; - for ( a = anchors.begin(); a != anchors.end(); ++a ) { + QMap<int, int>& anchors = *sinit->anchors; + QMap<int, int>::ConstIterator a; + for ( a = anchors.begin(); a != anchors.end(); ++a ) { #ifndef QT_NO_REGEXP_ANCHOR_ALT - if ( (*a & Anchor_Alternation) != 0 ) - break; + if ( (*a & Anchor_Alternation) != 0 ) + break; #endif - if ( (*a & Anchor_Caret) == 0 ) { - caretAnchored = FALSE; - break; - } - } + if ( (*a & Anchor_Caret) == 0 ) { + caretAnchored = FALSE; + break; + } + } } #endif return yyPos0; } void QRegExpEngine::parseAtom( Box *box ) { #ifndef QT_NO_REGEXP_LOOKAHEAD QRegExpEngine *eng = 0; bool neg; int len; #endif switch ( yyTok ) { case Tok_Dollar: - box->catAnchor( Anchor_Dollar ); - break; + box->catAnchor( Anchor_Dollar ); + break; case Tok_Caret: - box->catAnchor( Anchor_Caret ); - break; + box->catAnchor( Anchor_Caret ); + break; #ifndef QT_NO_REGEXP_LOOKAHEAD case Tok_PosLookahead: case Tok_NegLookahead: - neg = ( yyTok == Tok_NegLookahead ); - eng = new QRegExpEngine( cs ); - len = eng->parse( yyIn + yyPos - 1, yyLen - yyPos + 1 ); - if ( len >= 0 ) - skipChars( len ); - else - yyError = TRUE; - box->catAnchor( addLookahead(eng, neg) ); - yyTok = getToken(); - if ( yyTok != Tok_RightParen ) - yyError = TRUE; - break; + neg = ( yyTok == Tok_NegLookahead ); + eng = new QRegExpEngine( cs ); + len = eng->parse( yyIn + yyPos - 1, yyLen - yyPos + 1 ); + if ( len >= 0 ) + skipChars( len ); + else + yyError = TRUE; + box->catAnchor( addLookahead(eng, neg) ); + yyTok = getToken(); + if ( yyTok != Tok_RightParen ) + yyError = TRUE; + break; #endif #ifndef QT_NO_REGEXP_ESCAPE case Tok_Word: - box->catAnchor( Anchor_Word ); - break; + box->catAnchor( Anchor_Word ); + break; case Tok_NonWord: - box->catAnchor( Anchor_NonWord ); - break; + box->catAnchor( Anchor_NonWord ); + break; #endif case Tok_LeftParen: case Tok_MagicLeftParen: - yyTok = getToken(); - parseExpression( box ); - if ( yyTok != Tok_RightParen ) - yyError = TRUE; - break; + yyTok = getToken(); + parseExpression( box ); + if ( yyTok != Tok_RightParen ) + yyError = TRUE; + break; case Tok_CharClass: - box->set( *yyCharClass ); - break; + box->set( *yyCharClass ); + break; default: - if ( (yyTok & Tok_Char) != 0 ) - box->set( QChar(yyTok ^ Tok_Char) ); + if ( (yyTok & Tok_Char) != 0 ) + box->set( QChar(yyTok ^ Tok_Char) ); #ifndef QT_NO_REGEXP_BACKREF - else if ( (yyTok & Tok_BackRef) != 0 ) - box->set( yyTok ^ Tok_BackRef ); + else if ( (yyTok & Tok_BackRef) != 0 ) + box->set( yyTok ^ Tok_BackRef ); #endif - else - yyError = TRUE; + else + yyError = TRUE; } yyTok = getToken(); } void QRegExpEngine::parseFactor( Box *box ) { #ifndef QT_NO_REGEXP_CAPTURE int atom = startAtom( yyMayCapture && yyTok == Tok_LeftParen ); #else static const int atom = 0; #endif #ifndef QT_NO_REGEXP_INTERVAL #define YYREDO() \ - yyIn = in, yyPos0 = pos0, yyPos = pos, yyLen = len, yyCh = ch, \ - *yyCharClass = charClass, yyMinRep = 0, yyMaxRep = 0, yyTok = tok + yyIn = in, yyPos0 = pos0, yyPos = pos, yyLen = len, yyCh = ch, \ + *yyCharClass = charClass, yyMinRep = 0, yyMaxRep = 0, yyTok = tok const QChar *in = yyIn; int pos0 = yyPos0; int pos = yyPos; int len = yyLen; int ch = yyCh; CharClass charClass; if ( yyTok == Tok_CharClass ) - charClass = *yyCharClass; + charClass = *yyCharClass; int tok = yyTok; bool mayCapture = yyMayCapture; #endif parseAtom( box ); #ifndef QT_NO_REGEXP_CAPTURE finishAtom( atom ); #endif if ( yyTok == Tok_Quantifier ) { - if ( yyMaxRep == InftyRep ) { - box->plus( atom ); + if ( yyMaxRep == InftyRep ) { + box->plus( atom ); #ifndef QT_NO_REGEXP_INTERVAL - } else if ( yyMaxRep == 0 ) { - box->clear(); + } else if ( yyMaxRep == 0 ) { + box->clear(); #endif - } - if ( yyMinRep == 0 ) - box->opt(); + } + if ( yyMinRep == 0 ) + box->opt(); #ifndef QT_NO_REGEXP_INTERVAL - yyMayCapture = FALSE; - int alpha = ( yyMinRep == 0 ) ? 0 : yyMinRep - 1; - int beta = ( yyMaxRep == InftyRep ) ? 0 : yyMaxRep - ( alpha + 1 ); - - Box rightBox( this ); - int i; - - for ( i = 0; i < beta; i++ ) { - YYREDO(); - Box leftBox( this ); - parseAtom( &leftBox ); - leftBox.cat( rightBox ); - leftBox.opt(); - rightBox = leftBox; - } - for ( i = 0; i < alpha; i++ ) { - YYREDO(); - Box leftBox( this ); - parseAtom( &leftBox ); - leftBox.cat( rightBox ); - rightBox = leftBox; - } - rightBox.cat( *box ); - *box = rightBox; -#endif - yyTok = getToken(); + yyMayCapture = FALSE; + int alpha = ( yyMinRep == 0 ) ? 0 : yyMinRep - 1; + int beta = ( yyMaxRep == InftyRep ) ? 0 : yyMaxRep - ( alpha + 1 ); + + Box rightBox( this ); + int i; + + for ( i = 0; i < beta; i++ ) { + YYREDO(); + Box leftBox( this ); + parseAtom( &leftBox ); + leftBox.cat( rightBox ); + leftBox.opt(); + rightBox = leftBox; + } + for ( i = 0; i < alpha; i++ ) { + YYREDO(); + Box leftBox( this ); + parseAtom( &leftBox ); + leftBox.cat( rightBox ); + rightBox = leftBox; + } + rightBox.cat( *box ); + *box = rightBox; +#endif + yyTok = getToken(); #ifndef QT_NO_REGEXP_INTERVAL - yyMayCapture = mayCapture; + yyMayCapture = mayCapture; #endif } #undef YYREDO } void QRegExpEngine::parseTerm( Box *box ) { #ifndef QT_NO_REGEXP_OPTIM if ( yyTok != Tok_Eos && yyTok != Tok_RightParen && yyTok != Tok_Bar ) - parseFactor( box ); + parseFactor( box ); #endif while ( yyTok != Tok_Eos && yyTok != Tok_RightParen && yyTok != Tok_Bar ) { - Box rightBox( this ); - parseFactor( &rightBox ); - box->cat( rightBox ); + Box rightBox( this ); + parseFactor( &rightBox ); + box->cat( rightBox ); } } void QRegExpEngine::parseExpression( Box *box ) { parseTerm( box ); while ( yyTok == Tok_Bar ) { - Box rightBox( this ); - yyTok = getToken(); - parseTerm( &rightBox ); - box->orx( rightBox ); + Box rightBox( this ); + yyTok = getToken(); + parseTerm( &rightBox ); + box->orx( rightBox ); } } /* The class QRegExpPrivate contains the private data of a regular expression other than the automaton. It makes it possible for many QRegExp objects to use the same QRegExpEngine object with different QRegExpPrivate objects. */ @@ -3072,43 +3078,43 @@ struct QRegExpPrivate #ifndef QT_NO_REGEXP_OPTIM static QCache<QRegExpEngine> *engineCache = 0; #endif static QRegExpEngine *newEngine( const QString& pattern, bool caseSensitive ) { #ifndef QT_NO_REGEXP_OPTIM if ( engineCache != 0 ) { - QRegExpEngine *eng = engineCache->take( pattern ); - if ( eng == 0 || eng->caseSensitive() != caseSensitive ) { - delete eng; - } else { - eng->ref(); - return eng; - } + QRegExpEngine *eng = engineCache->take( pattern ); + if ( eng == 0 || eng->caseSensitive() != caseSensitive ) { + delete eng; + } else { + eng->ref(); + return eng; + } } #endif return new QRegExpEngine( pattern, caseSensitive ); } static void derefEngine( QRegExpEngine *eng, const QString& pattern ) { if ( eng != 0 && eng->deref() ) { #ifndef QT_NO_REGEXP_OPTIM - if ( engineCache == 0 ) { - engineCache = new QCache<QRegExpEngine>; - engineCache->setAutoDelete( TRUE ); - } - if ( !pattern.isNull() && - engineCache->insert(pattern, eng, 4 + pattern.length() / 4) ) - return; + if ( engineCache == 0 ) { + engineCache = new QCache<QRegExpEngine>; + engineCache->setAutoDelete( TRUE ); + } + if ( !pattern.isNull() && + engineCache->insert(pattern, eng, 4 + pattern.length() / 4) ) + return; #else - Q_UNUSED( pattern ); + Q_UNUSED( pattern ); #endif - delete eng; + delete eng; } } /*! Constructs an empty regexp. \sa isValid() */ @@ -3196,21 +3202,21 @@ QRegExp3& QRegExp3::operator=( const QRegExp3& rx ) Two QRegExp3 objects are equal if they have the same pattern strings and the same settings for case sensitivity, wildcard and minimal matching. */ bool QRegExp3::operator==( const QRegExp3& rx ) const { return priv->pattern == rx.priv->pattern && - eng->caseSensitive() == rx.eng->caseSensitive() && + eng->caseSensitive() == rx.eng->caseSensitive() && #ifndef QT_NO_REGEXP_WILDCARD - priv->wc == rx.priv->wc && + priv->wc == rx.priv->wc && #endif - priv->min == rx.priv->min; + priv->min == rx.priv->min; } /*! \fn bool QRegExp3::operator!=( const QRegExp& rx ) const Returns TRUE if this regular expression is not equal to \a rx, otherwise FALSE. \sa operator==() @@ -3267,18 +3273,18 @@ QString QRegExp3::pattern() const expression. The case sensitivity, wildcard and minimal matching options are not changed. \sa pattern() */ void QRegExp3::setPattern( const QString& pattern ) { if ( priv->pattern != pattern ) { - priv->pattern = pattern; - compile( caseSensitive() ); + priv->pattern = pattern; + compile( caseSensitive() ); } } /*! Returns TRUE if case sensitivity is enabled, otherwise FALSE. The default is TRUE. \sa setCaseSensitive() @@ -3294,17 +3300,17 @@ bool QRegExp3::caseSensitive() const If \a sensitive is TRUE, <b>\\</b><b>.txt$</b> matches <tt>readme.txt</tt> but not <tt>README.TXT</tt>. \sa caseSensitive() */ void QRegExp3::setCaseSensitive( bool sensitive ) { if ( sensitive != eng->caseSensitive() ) - compile( sensitive ); + compile( sensitive ); } #ifndef QT_NO_REGEXP_WILDCARD /*! Returns TRUE if wildcard mode is enabled, otherwise FALSE. The default is FALSE. \sa setWildcard() @@ -3323,18 +3329,18 @@ bool QRegExp3::wildcard() const For example, <b>r*.txt</b> matches the string <tt>readme.txt</tt> in wildcard mode, but does not match <tt>readme</tt>. \sa wildcard() */ void QRegExp3::setWildcard( bool wildcard ) { if ( wildcard != priv->wc ) { - priv->wc = wildcard; - compile( caseSensitive() ); + priv->wc = wildcard; + compile( caseSensitive() ); } } #endif /*! Returns TRUE if minimal (non-greedy) matching is enabled, otherwise returns FALSE. \sa setMinimal() @@ -3386,33 +3392,33 @@ bool QRegExp3::exactMatch( const QString& str ) { #ifndef QT_NO_REGEXP_CAPTURE priv->t = str; priv->capturedCache.clear(); #endif priv->captured = eng->match( str, 0, priv->min, TRUE ); if ( priv->captured[1] == (int) str.length() ) { - return TRUE; + return TRUE; } else { - priv->captured.detach(); - priv->captured[0] = 0; - priv->captured[1] = eng->matchedLength(); - return FALSE; + priv->captured.detach(); + priv->captured[0] = 0; + priv->captured[1] = eng->matchedLength(); + return FALSE; } } /*! \overload This version does not set matchedLength(), capturedTexts() and friends. */ bool QRegExp3::exactMatch( const QString& str ) const { return eng->match(str, 0, priv->min, TRUE)[0] == 0 && - eng->matchedLength() == (int) str.length(); + eng->matchedLength() == (int) str.length(); } /*! \obsolete Attempts to match in \a str, starting from position \a index. Returns the position of the match, or -1 if there was no match. The length of the match is stored in \a *len, unless \a len is a null pointer. @@ -3424,39 +3430,39 @@ bool QRegExp3::exactMatch( const QString& str ) const Use search() and matchedLength() instead of this function. If you really need the \a indexIsStart functionality, try this: \code QRegExp3 rx( "some pattern" ); int pos = rx.search( str.mid( index ) ); if ( pos != -1 ) - pos += index; + pos += index; int len = rx.matchedLength(); \endcode */ -#ifndef QT_NO_COMPAT +#ifndef QT_NO_COMPAT int QRegExp3::match( const QString& str, int index, int *len, - bool indexIsStart ) + bool indexIsStart ) { int pos; if ( indexIsStart ) { - pos = search( str.mid(index) ); - if ( pos >= 0 ) { - pos += index; - if ( len != 0 ) - *len = matchedLength(); - } else { - if ( len != 0 ) - *len = 0; - } + pos = search( str.mid(index) ); + if ( pos >= 0 ) { + pos += index; + if ( len != 0 ) + *len = matchedLength(); + } else { + if ( len != 0 ) + *len = 0; + } } else { - pos = search( str, index ); - if ( len != 0 ) - *len = matchedLength(); + pos = search( str, index ); + if ( len != 0 ) + *len = matchedLength(); } return pos; } #endif /*! Attempts to find a match in \a str from position \a start (0 by default). If \a start is -1, the search starts at the last character; if -2, at the next to @@ -3469,84 +3475,84 @@ int QRegExp3::match( const QString& str, int index, int *len, Example: \code QString str = "offsets: 1.23 .50 71.00 6.00"; QRegExp3 rx( "\\d*\\.\\d+" ); // very simple floating point matching int count = 0; int pos = 0; while ( pos >= 0 ) { - pos = rx.search( str, pos ); - count++; + pos = rx.search( str, pos ); + count++; } // pos will be 9, 14, 18 and finally 24; count will end up as 4. \endcode \sa searchRev() match() matchedLength() capturedTexts() */ // QChar versions #ifdef QCHAR_SUPPORT const QString makeString(const QChar *str) { // A sentinel value checked in case the QChar *ptr is never null terminated - const uint MAXLENGTH=65535; + const uint MAXLENGTH=65535; - const QChar *s=str; - uint i=0; - while(i < MAXLENGTH && *s != QChar::null) { i++;s++ ;} + const QChar *s=str; + uint i=0; + while(i < MAXLENGTH && *s != QChar::null) { i++;s++ ;} return QString(str,i); } int QRegExp3::search(const QChar *str,int start) { - return search(makeString(str),start); + return search(makeString(str),start); } int QRegExp3::search(const QChar *str,int start) const { - return search(makeString(str),start); + return search(makeString(str),start); } int QRegExp3::searchRev(const QChar *str,int start) { - return searchRev(makeString(str),start); + return searchRev(makeString(str),start); } int QRegExp3::searchRev(const QChar *str,int start) const { - return searchRev(makeString(str),start); + return searchRev(makeString(str),start); } bool QRegExp3::exactMatch(const QChar *str) { - return exactMatch(makeString(str)); + return exactMatch(makeString(str)); } bool QRegExp3::exactMatch(const QChar *str) const { - return exactMatch(makeString(str)); + return exactMatch(makeString(str)); } #endif // QCHAR_SUPPORT int QRegExp3::search( const QString& str, int start ) { if ( start < 0 ) - start += str.length(); + start += str.length(); #ifndef QT_NO_REGEXP_CAPTURE priv->t = str; priv->capturedCache.clear(); #endif priv->captured = eng->match( str, start, priv->min, FALSE ); return priv->captured[0]; } /*! \overload This version does not set matchedLength(), capturedTexts() and friends. */ int QRegExp3::search( const QString& str, int start ) const { if ( start < 0 ) - start += str.length(); + start += str.length(); return eng->match( str, start, priv->min, FALSE )[0]; } /*! Attempts to find a match backwards in \a str from position \a start. If \a start is -1 (the default), the search starts at the last character; if -2, at the next to last character; etc. @@ -3554,51 +3560,51 @@ int QRegExp3::search( const QString& str, int start ) const You might prefer to use QString::findRev(). \sa search() matchedLength() capturedTexts() */ int QRegExp3::searchRev( const QString& str, int start ) { if ( start < 0 ) - start += str.length(); + start += str.length(); #ifndef QT_NO_REGEXP_CAPTURE priv->t = str; priv->capturedCache.clear(); #endif if ( start < 0 || start > (int) str.length() ) { - priv->captured.detach(); - priv->captured.fill( -1 ); - return -1; + priv->captured.detach(); + priv->captured.fill( -1 ); + return -1; } while ( start >= 0 ) { - priv->captured = eng->match( str, start, priv->min, TRUE ); - if ( priv->captured[0] == start ) - return start; - start--; + priv->captured = eng->match( str, start, priv->min, TRUE ); + if ( priv->captured[0] == start ) + return start; + start--; } return -1; } /*! \overload This version does not set matchedLength(), capturedText() and friends. */ int QRegExp3::searchRev( const QString& str, int start ) const { if ( start < 0 ) - start += str.length(); + start += str.length(); if ( start < 0 || start > (int) str.length() ) - return -1; + return -1; while ( start >= 0 ) { - if ( eng->match(str, start, priv->min, TRUE)[0] == start ) - return start; - start--; + if ( eng->match(str, start, priv->min, TRUE)[0] == start ) + return start; + start--; } return -1; } /*! Returns the length of the last matched string, or -1 if there was no match. \sa match() search() @@ -3651,117 +3657,117 @@ int QRegExp3::matchedLength() capturedTexts()[2] is the text of the second and so on (corresponding to $1, $2 etc. in some other regexp languages). \sa cap() pos() */ QStringList QRegExp3::capturedTexts() { if ( priv->capturedCache.isEmpty() ) { - for ( int i = 0; i < (int) priv->captured.size(); i += 2 ) { - QString m; - if ( priv->captured[i + 1] == 0 ) - m = QString::fromLatin1( "" ); - else if ( priv->captured[i] >= 0 ) - m = priv->t.mid( priv->captured[i], - priv->captured[i + 1] ); - priv->capturedCache.append( m ); - } - priv->t = QString::null; + for ( int i = 0; i < (int) priv->captured.size(); i += 2 ) { + QString m; + if ( priv->captured[i + 1] == 0 ) + m = QString::fromLatin1( "" ); + else if ( priv->captured[i] >= 0 ) + m = priv->t.mid( priv->captured[i], + priv->captured[i + 1] ); + priv->capturedCache.append( m ); + } + priv->t = QString::null; } return priv->capturedCache; } /*! Returns the text captured by the \a nth subexpression. The entire match has index 0 and the parenthesised subexpressions have indices starting from 1 (excluding non-capturing parenthesis). \code QRegExp3 rxlen( "(\\d+)(?:\\s*)(cm|inch)" ); int pos = rxlen.search( "Length: 189cm" ); if ( pos > -1 ) { - QString value = rxlen.cap( 1 ); // "189" - QString unit = rxlen.cap( 2 ); // "cm" - // ... + QString value = rxlen.cap( 1 ); // "189" + QString unit = rxlen.cap( 2 ); // "cm" + // ... } \endcode <a name="cap_in_a_loop"> Some patterns may lead to a number of matches which cannot be determined in advance, for example:</a> \code QRegExp3 rx( "(\\d+)" ); str = "Offsets: 12 14 99 231 7"; QStringList list; pos = 0; while ( pos >= 0 ) { - pos = rx.search( str, pos ); - if ( pos > -1 ) { - list += rx.cap( 1 ); - pos += rx.matchedLength(); - } + pos = rx.search( str, pos ); + if ( pos > -1 ) { + list += rx.cap( 1 ); + pos += rx.matchedLength(); + } } // list contains: ( "12", "14", "99", "231", "7" ). \endcode The order of elements matched by cap() is as follows. The first element, cap( 0 ), is the entire matching string. Each subsequent element corresponds to the next capturing open left parenthesis. Thus cap( 1 ) is the text of the first capturing parenthesis, cap( 2 ) is the text of the second and so on. \sa search() pos() capturedTexts() */ QString QRegExp3::cap( int nth ) { if ( nth < 0 || nth >= (int) priv->captured.size() / 2 ) - return QString::null; + return QString::null; else - return capturedTexts()[nth]; + return capturedTexts()[nth]; } /*! Returns the position of the \a nth captured text in the searched string. If \a nth is 0 (the default), pos() returns the position of the whole match. Example: \code QRegExp3 rx( "/([a-z]+)/([a-z]+)" ); - rx.search( "Output /dev/null" ); // Returns 7 (position of /dev/null) + rx.search( "Output /dev/null" ); // Returns 7 (position of /dev/null) rx.pos( 0 ); // Returns 7 (position of /dev/null) rx.pos( 1 ); // Returns 8 (position of dev) rx.pos( 2 ); // Returns 12 (position of null) \endcode Note that pos() returns -1 for zero-length matches. (For example, if cap(4) would return an empty string, pos(4) returns -1.) This is due to an implementation tradeoff. \sa capturedTexts() cap() */ int QRegExp3::pos( int nth ) { if ( nth < 0 || nth >= (int) priv->captured.size() / 2 ) - return -1; + return -1; else - return priv->captured[2 * nth]; + return priv->captured[2 * nth]; } #endif void QRegExp3::compile( bool caseSensitive ) { derefEngine( eng, priv->rxpattern ); #ifndef QT_NO_REGEXP_WILDCARD if ( priv->wc ) - priv->rxpattern = wc2rx( priv->pattern ); + priv->rxpattern = wc2rx( priv->pattern ); else #endif - priv->rxpattern = priv->pattern.isNull() ? QString::fromLatin1( "" ) - : priv->pattern; + priv->rxpattern = priv->pattern.isNull() ? QString::fromLatin1( "" ) + : priv->pattern; eng = newEngine( priv->rxpattern, caseSensitive ); #ifndef QT_NO_REGEXP_CAPTURE priv->t = QString::null; priv->capturedCache.clear(); #endif priv->captured.detach(); priv->captured.fill( -1, 2 + 2 * eng->numCaptures() ); } |