| static private CharInClass ( char ch, String set ) : bool | ||
| ch | char | |
| set | String | |
| return | bool | |
protected static bool CharInClass(char ch, String charClass)
{
return(RegexCharClass.CharInClass(ch, charClass));
}
protected override void Go()
{
Goto(0);
int advance = -1;
while (true)
{
if (advance >= 0)
{
// https://github.com/dotnet/coreclr/pull/14850#issuecomment-342256447
// Single common Advance call to reduce method size; and single method inline point
Advance(advance);
advance = -1;
}
#if DEBUG
if (runmatch.Debug)
{
DumpState();
}
#endif
CheckTimeout();
switch (Operator())
{
case RegexCode.Stop:
return;
case RegexCode.Nothing:
break;
case RegexCode.Goto:
Goto(Operand(0));
continue;
case RegexCode.Testref:
if (!IsMatched(Operand(0)))
{
break;
}
advance = 1;
continue;
case RegexCode.Lazybranch:
TrackPush(Textpos());
advance = 1;
continue;
case RegexCode.Lazybranch | RegexCode.Back:
TrackPop();
Textto(TrackPeek());
Goto(Operand(0));
continue;
case RegexCode.Setmark:
StackPush(Textpos());
TrackPush();
advance = 0;
continue;
case RegexCode.Nullmark:
StackPush(-1);
TrackPush();
advance = 0;
continue;
case RegexCode.Setmark | RegexCode.Back:
case RegexCode.Nullmark | RegexCode.Back:
StackPop();
break;
case RegexCode.Getmark:
StackPop();
TrackPush(StackPeek());
Textto(StackPeek());
advance = 0;
continue;
case RegexCode.Getmark | RegexCode.Back:
TrackPop();
StackPush(TrackPeek());
break;
case RegexCode.Capturemark:
if (Operand(1) != -1 && !IsMatched(Operand(1)))
{
break;
}
StackPop();
if (Operand(1) != -1)
{
TransferCapture(Operand(0), Operand(1), StackPeek(), Textpos());
}
else
{
Capture(Operand(0), StackPeek(), Textpos());
}
TrackPush(StackPeek());
advance = 2;
continue;
case RegexCode.Capturemark | RegexCode.Back:
TrackPop();
StackPush(TrackPeek());
Uncapture();
if (Operand(0) != -1 && Operand(1) != -1)
{
Uncapture();
}
break;
case RegexCode.Branchmark:
{
int matched;
StackPop();
matched = Textpos() - StackPeek();
if (matched != 0)
{ // Nonempty match -> loop now
TrackPush(StackPeek(), Textpos()); // Save old mark, textpos
StackPush(Textpos()); // Make new mark
Goto(Operand(0)); // Loop
}
else
{ // Empty match -> straight now
TrackPush2(StackPeek()); // Save old mark
advance = 1; // Straight
}
continue;
}
case RegexCode.Branchmark | RegexCode.Back:
TrackPop(2);
StackPop();
Textto(TrackPeek(1)); // Recall position
TrackPush2(TrackPeek()); // Save old mark
advance = 1; // Straight
continue;
case RegexCode.Branchmark | RegexCode.Back2:
TrackPop();
StackPush(TrackPeek()); // Recall old mark
break; // Backtrack
case RegexCode.Lazybranchmark:
{
// We hit this the first time through a lazy loop and after each
// successful match of the inner expression. It simply continues
// on and doesn't loop.
StackPop();
int oldMarkPos = StackPeek();
if (Textpos() != oldMarkPos)
{ // Nonempty match -> try to loop again by going to 'back' state
if (oldMarkPos != -1)
{
TrackPush(oldMarkPos, Textpos()); // Save old mark, textpos
}
else
{
TrackPush(Textpos(), Textpos());
}
}
else
{
// The inner expression found an empty match, so we'll go directly to 'back2' if we
// backtrack. In this case, we need to push something on the stack, since back2 pops.
// However, in the case of ()+? or similar, this empty match may be legitimate, so push the text
// position associated with that empty match.
StackPush(oldMarkPos);
TrackPush2(StackPeek()); // Save old mark
}
advance = 1;
continue;
}
case RegexCode.Lazybranchmark | RegexCode.Back:
{
// After the first time, Lazybranchmark | RegexCode.Back occurs
// with each iteration of the loop, and therefore with every attempted
// match of the inner expression. We'll try to match the inner expression,
// then go back to Lazybranchmark if successful. If the inner expression
// fails, we go to Lazybranchmark | RegexCode.Back2
int pos;
TrackPop(2);
pos = TrackPeek(1);
TrackPush2(TrackPeek()); // Save old mark
StackPush(pos); // Make new mark
Textto(pos); // Recall position
Goto(Operand(0)); // Loop
continue;
}
case RegexCode.Lazybranchmark | RegexCode.Back2:
// The lazy loop has failed. We'll do a true backtrack and
// start over before the lazy loop.
StackPop();
TrackPop();
StackPush(TrackPeek()); // Recall old mark
break;
case RegexCode.Setcount:
StackPush(Textpos(), Operand(0));
TrackPush();
advance = 1;
continue;
case RegexCode.Nullcount:
StackPush(-1, Operand(0));
TrackPush();
advance = 1;
continue;
case RegexCode.Setcount | RegexCode.Back:
StackPop(2);
break;
case RegexCode.Nullcount | RegexCode.Back:
StackPop(2);
break;
case RegexCode.Branchcount:
// StackPush:
// 0: Mark
// 1: Count
{
StackPop(2);
int mark = StackPeek();
int count = StackPeek(1);
int matched = Textpos() - mark;
if (count >= Operand(1) || (matched == 0 && count >= 0))
{ // Max loops or empty match -> straight now
TrackPush2(mark, count); // Save old mark, count
advance = 2; // Straight
}
else
{ // Nonempty match -> count+loop now
TrackPush(mark); // remember mark
StackPush(Textpos(), count + 1); // Make new mark, incr count
Goto(Operand(0)); // Loop
}
continue;
}
case RegexCode.Branchcount | RegexCode.Back:
// TrackPush:
// 0: Previous mark
// StackPush:
// 0: Mark (= current pos, discarded)
// 1: Count
TrackPop();
StackPop(2);
if (StackPeek(1) > 0)
{ // Positive -> can go straight
Textto(StackPeek()); // Zap to mark
TrackPush2(TrackPeek(), StackPeek(1) - 1); // Save old mark, old count
advance = 2; // Straight
continue;
}
StackPush(TrackPeek(), StackPeek(1) - 1); // recall old mark, old count
break;
case RegexCode.Branchcount | RegexCode.Back2:
// TrackPush:
// 0: Previous mark
// 1: Previous count
TrackPop(2);
StackPush(TrackPeek(), TrackPeek(1)); // Recall old mark, old count
break; // Backtrack
case RegexCode.Lazybranchcount:
// StackPush:
// 0: Mark
// 1: Count
{
StackPop(2);
int mark = StackPeek();
int count = StackPeek(1);
if (count < 0)
{ // Negative count -> loop now
TrackPush2(mark); // Save old mark
StackPush(Textpos(), count + 1); // Make new mark, incr count
Goto(Operand(0)); // Loop
}
else
{ // Nonneg count -> straight now
TrackPush(mark, count, Textpos()); // Save mark, count, position
advance = 2; // Straight
}
continue;
}
case RegexCode.Lazybranchcount | RegexCode.Back:
// TrackPush:
// 0: Mark
// 1: Count
// 2: Textpos
{
TrackPop(3);
int mark = TrackPeek();
int textpos = TrackPeek(2);
if (TrackPeek(1) < Operand(1) && textpos != mark)
{ // Under limit and not empty match -> loop
Textto(textpos); // Recall position
StackPush(textpos, TrackPeek(1) + 1); // Make new mark, incr count
TrackPush2(mark); // Save old mark
Goto(Operand(0)); // Loop
continue;
}
else
{ // Max loops or empty match -> backtrack
StackPush(TrackPeek(), TrackPeek(1)); // Recall old mark, count
break; // backtrack
}
}
case RegexCode.Lazybranchcount | RegexCode.Back2:
// TrackPush:
// 0: Previous mark
// StackPush:
// 0: Mark (== current pos, discarded)
// 1: Count
TrackPop();
StackPop(2);
StackPush(TrackPeek(), StackPeek(1) - 1); // Recall old mark, count
break; // Backtrack
case RegexCode.Setjump:
StackPush(Trackpos(), Crawlpos());
TrackPush();
advance = 0;
continue;
case RegexCode.Setjump | RegexCode.Back:
StackPop(2);
break;
case RegexCode.Backjump:
// StackPush:
// 0: Saved trackpos
// 1: Crawlpos
StackPop(2);
Trackto(StackPeek());
while (Crawlpos() != StackPeek(1))
{
Uncapture();
}
break;
case RegexCode.Forejump:
// StackPush:
// 0: Saved trackpos
// 1: Crawlpos
StackPop(2);
Trackto(StackPeek());
TrackPush(StackPeek(1));
advance = 0;
continue;
case RegexCode.Forejump | RegexCode.Back:
// TrackPush:
// 0: Crawlpos
TrackPop();
while (Crawlpos() != TrackPeek())
{
Uncapture();
}
break;
case RegexCode.Bol:
if (Leftchars() > 0 && CharAt(Textpos() - 1) != '\n')
{
break;
}
advance = 0;
continue;
case RegexCode.Eol:
if (Rightchars() > 0 && CharAt(Textpos()) != '\n')
{
break;
}
advance = 0;
continue;
case RegexCode.Boundary:
if (!IsBoundary(Textpos(), runtextbeg, runtextend))
{
break;
}
advance = 0;
continue;
case RegexCode.Nonboundary:
if (IsBoundary(Textpos(), runtextbeg, runtextend))
{
break;
}
advance = 0;
continue;
case RegexCode.ECMABoundary:
if (!IsECMABoundary(Textpos(), runtextbeg, runtextend))
{
break;
}
advance = 0;
continue;
case RegexCode.NonECMABoundary:
if (IsECMABoundary(Textpos(), runtextbeg, runtextend))
{
break;
}
advance = 0;
continue;
case RegexCode.Beginning:
if (Leftchars() > 0)
{
break;
}
advance = 0;
continue;
case RegexCode.Start:
if (Textpos() != Textstart())
{
break;
}
advance = 0;
continue;
case RegexCode.EndZ:
if (Rightchars() > 1 || Rightchars() == 1 && CharAt(Textpos()) != '\n')
{
break;
}
advance = 0;
continue;
case RegexCode.End:
if (Rightchars() > 0)
{
break;
}
advance = 0;
continue;
case RegexCode.One:
if (Forwardchars() < 1 || Forwardcharnext() != (char)Operand(0))
{
break;
}
advance = 1;
continue;
case RegexCode.Notone:
if (Forwardchars() < 1 || Forwardcharnext() == (char)Operand(0))
{
break;
}
advance = 1;
continue;
case RegexCode.Set:
if (Forwardchars() < 1 || !RegexCharClass.CharInClass(Forwardcharnext(), _code.Strings[Operand(0)]))
{
break;
}
advance = 1;
continue;
case RegexCode.Multi:
{
if (!Stringmatch(_code.Strings[Operand(0)]))
{
break;
}
advance = 1;
continue;
}
case RegexCode.Ref:
{
int capnum = Operand(0);
if (IsMatched(capnum))
{
if (!Refmatch(MatchIndex(capnum), MatchLength(capnum)))
{
break;
}
}
else
{
if ((runregex.roptions & RegexOptions.ECMAScript) == 0)
{
break;
}
}
advance = 1;
continue;
}
case RegexCode.Onerep:
{
int c = Operand(1);
if (Forwardchars() < c)
{
break;
}
char ch = (char)Operand(0);
while (c-- > 0)
{
if (Forwardcharnext() != ch)
{
goto BreakBackward;
}
}
advance = 2;
continue;
}
case RegexCode.Notonerep:
{
int c = Operand(1);
if (Forwardchars() < c)
{
break;
}
char ch = (char)Operand(0);
while (c-- > 0)
{
if (Forwardcharnext() == ch)
{
goto BreakBackward;
}
}
advance = 2;
continue;
}
case RegexCode.Setrep:
{
int c = Operand(1);
if (Forwardchars() < c)
{
break;
}
string set = _code.Strings[Operand(0)];
while (c-- > 0)
{
// Check the timeout every 2000th iteration. The additional if check
// in every iteration can be neglected as the cost of the CharInClass
// check is many times higher.
if ((uint)c % LoopTimeoutCheckCount == 0)
{
CheckTimeout();
}
if (!RegexCharClass.CharInClass(Forwardcharnext(), set))
{
goto BreakBackward;
}
}
advance = 2;
continue;
}
case RegexCode.Oneloop:
{
int c = Operand(1);
if (c > Forwardchars())
{
c = Forwardchars();
}
char ch = (char)Operand(0);
int i;
for (i = c; i > 0; i--)
{
if (Forwardcharnext() != ch)
{
Backwardnext();
break;
}
}
if (c > i)
{
TrackPush(c - i - 1, Textpos() - Bump());
}
advance = 2;
continue;
}
case RegexCode.Notoneloop:
{
int c = Operand(1);
if (c > Forwardchars())
{
c = Forwardchars();
}
char ch = (char)Operand(0);
int i;
for (i = c; i > 0; i--)
{
if (Forwardcharnext() == ch)
{
Backwardnext();
break;
}
}
if (c > i)
{
TrackPush(c - i - 1, Textpos() - Bump());
}
advance = 2;
continue;
}
case RegexCode.Setloop:
{
int c = Operand(1);
if (c > Forwardchars())
{
c = Forwardchars();
}
string set = _code.Strings[Operand(0)];
int i;
for (i = c; i > 0; i--)
{
// Check the timeout every 2000th iteration. The additional if check
// in every iteration can be neglected as the cost of the CharInClass
// check is many times higher.
if ((uint)i % LoopTimeoutCheckCount == 0)
{
CheckTimeout();
}
if (!RegexCharClass.CharInClass(Forwardcharnext(), set))
{
Backwardnext();
break;
}
}
if (c > i)
{
TrackPush(c - i - 1, Textpos() - Bump());
}
advance = 2;
continue;
}
case RegexCode.Oneloop | RegexCode.Back:
case RegexCode.Notoneloop | RegexCode.Back:
{
TrackPop(2);
int i = TrackPeek();
int pos = TrackPeek(1);
Textto(pos);
if (i > 0)
{
TrackPush(i - 1, pos - Bump());
}
advance = 2;
continue;
}
case RegexCode.Setloop | RegexCode.Back:
{
TrackPop(2);
int i = TrackPeek();
int pos = TrackPeek(1);
Textto(pos);
if (i > 0)
{
TrackPush(i - 1, pos - Bump());
}
advance = 2;
continue;
}
case RegexCode.Onelazy:
case RegexCode.Notonelazy:
{
int c = Operand(1);
if (c > Forwardchars())
{
c = Forwardchars();
}
if (c > 0)
{
TrackPush(c - 1, Textpos());
}
advance = 2;
continue;
}
case RegexCode.Setlazy:
{
int c = Operand(1);
if (c > Forwardchars())
{
c = Forwardchars();
}
if (c > 0)
{
TrackPush(c - 1, Textpos());
}
advance = 2;
continue;
}
case RegexCode.Onelazy | RegexCode.Back:
{
TrackPop(2);
int pos = TrackPeek(1);
Textto(pos);
if (Forwardcharnext() != (char)Operand(0))
{
break;
}
int i = TrackPeek();
if (i > 0)
{
TrackPush(i - 1, pos + Bump());
}
advance = 2;
continue;
}
case RegexCode.Notonelazy | RegexCode.Back:
{
TrackPop(2);
int pos = TrackPeek(1);
Textto(pos);
if (Forwardcharnext() == (char)Operand(0))
{
break;
}
int i = TrackPeek();
if (i > 0)
{
TrackPush(i - 1, pos + Bump());
}
advance = 2;
continue;
}
case RegexCode.Setlazy | RegexCode.Back:
{
TrackPop(2);
int pos = TrackPeek(1);
Textto(pos);
if (!RegexCharClass.CharInClass(Forwardcharnext(), _code.Strings[Operand(0)]))
{
break;
}
int i = TrackPeek();
if (i > 0)
{
TrackPush(i - 1, pos + Bump());
}
advance = 2;
continue;
}
default:
throw NotImplemented.ByDesignWithMessage(SR.UnimplementedState);
}
BreakBackward:
;
// "break Backward" comes here:
Backtrack();
}
}
protected static bool CharInSet(char ch, String set, String category)
{
string charClass = RegexCharClass.ConvertOldStringsToClass(set, category);
return(RegexCharClass.CharInClass(ch, charClass));
}
protected override bool FindFirstChar()
{
if (0 != (_code.Anchors & (RegexFCD.Beginning | RegexFCD.Start | RegexFCD.EndZ | RegexFCD.End)))
{
if (!_code.RightToLeft)
{
if ((0 != (_code.Anchors & RegexFCD.Beginning) && runtextpos > runtextbeg) ||
(0 != (_code.Anchors & RegexFCD.Start) && runtextpos > runtextstart))
{
runtextpos = runtextend;
return(false);
}
if (0 != (_code.Anchors & RegexFCD.EndZ) && runtextpos < runtextend - 1)
{
runtextpos = runtextend - 1;
}
else if (0 != (_code.Anchors & RegexFCD.End) && runtextpos < runtextend)
{
runtextpos = runtextend;
}
}
else
{
if ((0 != (_code.Anchors & RegexFCD.End) && runtextpos < runtextend) ||
(0 != (_code.Anchors & RegexFCD.EndZ) && (runtextpos < runtextend - 1 ||
(runtextpos == runtextend - 1 && CharAt(runtextpos) != '\n'))) ||
(0 != (_code.Anchors & RegexFCD.Start) && runtextpos < runtextstart))
{
runtextpos = runtextbeg;
return(false);
}
if (0 != (_code.Anchors & RegexFCD.Beginning) && runtextpos > runtextbeg)
{
runtextpos = runtextbeg;
}
}
if (_code.BMPrefix != null)
{
return(_code.BMPrefix.IsMatch(runtext, runtextpos, runtextbeg, runtextend));
}
return(true); // found a valid start or end anchor
}
else if (_code.BMPrefix != null)
{
runtextpos = _code.BMPrefix.Scan(runtext, runtextpos, runtextbeg, runtextend);
if (runtextpos == -1)
{
runtextpos = (_code.RightToLeft ? runtextbeg : runtextend);
return(false);
}
return(true);
}
else if (_code.FCPrefix == null)
{
return(true);
}
_rightToLeft = _code.RightToLeft;
_caseInsensitive = _code.FCPrefix.GetValueOrDefault().CaseInsensitive;
string set = _code.FCPrefix.GetValueOrDefault().Prefix;
if (RegexCharClass.IsSingleton(set))
{
char ch = RegexCharClass.SingletonChar(set);
for (int i = Forwardchars(); i > 0; i--)
{
if (ch == Forwardcharnext())
{
Backwardnext();
return(true);
}
}
}
else
{
for (int i = Forwardchars(); i > 0; i--)
{
if (RegexCharClass.CharInClass(Forwardcharnext(), set))
{
Backwardnext();
return(true);
}
}
}
return(false);
}
protected override bool FindFirstChar()
{
int i;
String set;
if (0 != (_code._anchors & (RegexFCD.Beginning | RegexFCD.Start | RegexFCD.EndZ | RegexFCD.End)))
{
if (!_code._rightToLeft)
{
if ((0 != (_code._anchors & RegexFCD.Beginning) && _runtextpos > _runtextbeg) ||
(0 != (_code._anchors & RegexFCD.Start) && _runtextpos > _runtextstart))
{
_runtextpos = _runtextend;
return(false);
}
if (0 != (_code._anchors & RegexFCD.EndZ) && _runtextpos < _runtextend - 1)
{
_runtextpos = _runtextend - 1;
}
else if (0 != (_code._anchors & RegexFCD.End) && _runtextpos < _runtextend)
{
_runtextpos = _runtextend;
}
}
else
{
if ((0 != (_code._anchors & RegexFCD.End) && _runtextpos < _runtextend) ||
(0 != (_code._anchors & RegexFCD.EndZ) && (_runtextpos < _runtextend - 1 ||
(_runtextpos == _runtextend - 1 && CharAt(_runtextpos) != '\n'))) ||
(0 != (_code._anchors & RegexFCD.Start) && _runtextpos < _runtextstart))
{
_runtextpos = _runtextbeg;
return(false);
}
if (0 != (_code._anchors & RegexFCD.Beginning) && _runtextpos > _runtextbeg)
{
_runtextpos = _runtextbeg;
}
}
if (_code._bmPrefix != null)
{
return(_code._bmPrefix.IsMatch(_runtext, _runtextpos, _runtextbeg, _runtextend));
}
return(true); // found a valid start or end anchor
}
else if (_code._bmPrefix != null)
{
_runtextpos = _code._bmPrefix.Scan(_runtext, _runtextpos, _runtextbeg, _runtextend);
if (_runtextpos == -1)
{
_runtextpos = (_code._rightToLeft ? _runtextbeg : _runtextend);
return(false);
}
return(true);
}
else if (_code._fcPrefix == null)
{
return(true);
}
_rightToLeft = _code._rightToLeft;
_caseInsensitive = _code._fcPrefix.CaseInsensitive;
set = _code._fcPrefix.Prefix;
if (RegexCharClass.IsSingleton(set))
{
char ch = RegexCharClass.SingletonChar(set);
for (i = Forwardchars(); i > 0; i--)
{
if (ch == Forwardcharnext())
{
Backwardnext();
return(true);
}
}
}
else
{
for (i = Forwardchars(); i > 0; i--)
{
if (RegexCharClass.CharInClass(Forwardcharnext(), set))
{
Backwardnext();
return(true);
}
}
}
return(false);
}
protected override bool FindFirstChar()
{
int i;
String set;
if (0 != (runanchors & (RegexFCD.Beginning | RegexFCD.Start | RegexFCD.EndZ | RegexFCD.End)))
{
if (!runcode._rightToLeft)
{
if ((0 != (runanchors & RegexFCD.Beginning) && runtextpos > runtextbeg) ||
(0 != (runanchors & RegexFCD.Start) && runtextpos > runtextstart))
{
runtextpos = runtextend;
return(false);
}
if (0 != (runanchors & RegexFCD.EndZ) && runtextpos < runtextend - 1)
{
runtextpos = runtextend - 1;
}
else if (0 != (runanchors & RegexFCD.End) && runtextpos < runtextend)
{
runtextpos = runtextend;
}
}
else
{
if ((0 != (runanchors & RegexFCD.End) && runtextpos < runtextend) ||
(0 != (runanchors & RegexFCD.EndZ) && (runtextpos < runtextend - 1 ||
(runtextpos == runtextend - 1 && CharAt(runtextpos) != '\n'))) ||
(0 != (runanchors & RegexFCD.Start) && runtextpos < runtextstart))
{
runtextpos = runtextbeg;
return(false);
}
if (0 != (runanchors & RegexFCD.Beginning) && runtextpos > runtextbeg)
{
runtextpos = runtextbeg;
}
}
if (runbmPrefix != null)
{
return(runbmPrefix.IsMatch(runtext, runtextpos, runtextbeg, runtextend));
}
}
else if (runbmPrefix != null)
{
runtextpos = runbmPrefix.Scan(runtext, runtextpos, runtextbeg, runtextend);
if (runtextpos == -1)
{
runtextpos = (runcode._rightToLeft ? runtextbeg : runtextend);
return(false);
}
return(true);
}
if (runfcPrefix == null)
{
return(true);
}
runrtl = runcode._rightToLeft;
runci = runfcPrefix.CaseInsensitive;
set = runfcPrefix.Prefix;
if (RegexCharClass.IsSingleton(set))
{
char ch = RegexCharClass.SingletonChar(set);
for (i = Forwardchars(); i > 0; i--)
{
if (ch == Forwardcharnext())
{
Backwardnext();
return(true);
}
}
}
else
{
for (i = Forwardchars(); i > 0; i--)
{
if (RegexCharClass.CharInClass(Forwardcharnext(), set))
{
Backwardnext();
return(true);
}
}
}
return(false);
}
protected override bool FindFirstChar()
{
int num;
if ((this.runanchors & 0x35) != 0)
{
if (!this.runcode._rightToLeft)
{
if ((((this.runanchors & 1) != 0) && (base.runtextpos > base.runtextbeg)) || (((this.runanchors & 4) != 0) && (base.runtextpos > base.runtextstart)))
{
base.runtextpos = base.runtextend;
return(false);
}
if (((this.runanchors & 0x10) != 0) && (base.runtextpos < (base.runtextend - 1)))
{
base.runtextpos = base.runtextend - 1;
}
else if (((this.runanchors & 0x20) != 0) && (base.runtextpos < base.runtextend))
{
base.runtextpos = base.runtextend;
}
}
else
{
if (((((this.runanchors & 0x20) != 0) && (base.runtextpos < base.runtextend)) || (((this.runanchors & 0x10) != 0) && ((base.runtextpos < (base.runtextend - 1)) || ((base.runtextpos == (base.runtextend - 1)) && (this.CharAt(base.runtextpos) != '\n'))))) || (((this.runanchors & 4) != 0) && (base.runtextpos < base.runtextstart)))
{
base.runtextpos = base.runtextbeg;
return(false);
}
if (((this.runanchors & 1) != 0) && (base.runtextpos > base.runtextbeg))
{
base.runtextpos = base.runtextbeg;
}
}
if (this.runbmPrefix != null)
{
return(this.runbmPrefix.IsMatch(base.runtext, base.runtextpos, base.runtextbeg, base.runtextend));
}
return(true);
}
if (this.runbmPrefix != null)
{
base.runtextpos = this.runbmPrefix.Scan(base.runtext, base.runtextpos, base.runtextbeg, base.runtextend);
if (base.runtextpos == -1)
{
base.runtextpos = this.runcode._rightToLeft ? base.runtextbeg : base.runtextend;
return(false);
}
return(true);
}
if (this.runfcPrefix == null)
{
return(true);
}
this.runrtl = this.runcode._rightToLeft;
this.runci = this.runfcPrefix.CaseInsensitive;
string prefix = this.runfcPrefix.Prefix;
if (RegexCharClass.IsSingleton(prefix))
{
char ch = RegexCharClass.SingletonChar(prefix);
for (num = this.Forwardchars(); num > 0; num--)
{
if (ch == this.Forwardcharnext())
{
this.Backwardnext();
return(true);
}
}
}
else
{
for (num = this.Forwardchars(); num > 0; num--)
{
if (RegexCharClass.CharInClass(this.Forwardcharnext(), prefix))
{
this.Backwardnext();
return(true);
}
}
}
return(false);
}
protected override void Go()
{
this.Goto(0);
Label_0007:
switch (this.Operator())
{
case 0:
{
int num12 = this.Operand(1);
if (this.Forwardchars() < num12)
{
goto Label_0E4E;
}
char ch = (char)this.Operand(0);
while (num12-- > 0)
{
if (this.Forwardcharnext() != ch)
{
goto Label_0E4E;
}
}
this.Advance(2);
goto Label_0007;
}
case 1:
{
int num13 = this.Operand(1);
if (this.Forwardchars() < num13)
{
goto Label_0E4E;
}
char ch2 = (char)this.Operand(0);
while (num13-- > 0)
{
if (this.Forwardcharnext() == ch2)
{
goto Label_0E4E;
}
}
this.Advance(2);
goto Label_0007;
}
case 2:
{
int num14 = this.Operand(1);
if (this.Forwardchars() < num14)
{
goto Label_0E4E;
}
string set = this.runstrings[this.Operand(0)];
while (num14-- > 0)
{
if (!RegexCharClass.CharInClass(this.Forwardcharnext(), set))
{
goto Label_0E4E;
}
}
this.Advance(2);
goto Label_0007;
}
case 3:
{
int num15 = this.Operand(1);
if (num15 > this.Forwardchars())
{
num15 = this.Forwardchars();
}
char ch3 = (char)this.Operand(0);
int num16 = num15;
while (num16 > 0)
{
if (this.Forwardcharnext() != ch3)
{
this.Backwardnext();
break;
}
num16--;
}
if (num15 > num16)
{
this.TrackPush((num15 - num16) - 1, this.Textpos() - this.Bump());
}
this.Advance(2);
goto Label_0007;
}
case 4:
{
int num17 = this.Operand(1);
if (num17 > this.Forwardchars())
{
num17 = this.Forwardchars();
}
char ch4 = (char)this.Operand(0);
int num18 = num17;
while (num18 > 0)
{
if (this.Forwardcharnext() == ch4)
{
this.Backwardnext();
break;
}
num18--;
}
if (num17 > num18)
{
this.TrackPush((num17 - num18) - 1, this.Textpos() - this.Bump());
}
this.Advance(2);
goto Label_0007;
}
case 5:
{
int num19 = this.Operand(1);
if (num19 > this.Forwardchars())
{
num19 = this.Forwardchars();
}
string str2 = this.runstrings[this.Operand(0)];
int num20 = num19;
while (num20 > 0)
{
if (!RegexCharClass.CharInClass(this.Forwardcharnext(), str2))
{
this.Backwardnext();
break;
}
num20--;
}
if (num19 > num20)
{
this.TrackPush((num19 - num20) - 1, this.Textpos() - this.Bump());
}
this.Advance(2);
goto Label_0007;
}
case 6:
case 7:
{
int num25 = this.Operand(1);
if (num25 > this.Forwardchars())
{
num25 = this.Forwardchars();
}
if (num25 > 0)
{
this.TrackPush(num25 - 1, this.Textpos());
}
this.Advance(2);
goto Label_0007;
}
case 8:
{
int num26 = this.Operand(1);
if (num26 > this.Forwardchars())
{
num26 = this.Forwardchars();
}
if (num26 > 0)
{
this.TrackPush(num26 - 1, this.Textpos());
}
this.Advance(2);
goto Label_0007;
}
case 9:
if ((this.Forwardchars() < 1) || (this.Forwardcharnext() != ((char)this.Operand(0))))
{
goto Label_0E4E;
}
this.Advance(1);
goto Label_0007;
case 10:
if ((this.Forwardchars() < 1) || (this.Forwardcharnext() == ((char)this.Operand(0))))
{
goto Label_0E4E;
}
this.Advance(1);
goto Label_0007;
case 11:
if ((this.Forwardchars() < 1) || !RegexCharClass.CharInClass(this.Forwardcharnext(), this.runstrings[this.Operand(0)]))
{
goto Label_0E4E;
}
this.Advance(1);
goto Label_0007;
case 12:
if (!this.Stringmatch(this.runstrings[this.Operand(0)]))
{
goto Label_0E4E;
}
this.Advance(1);
goto Label_0007;
case 13:
{
int cap = this.Operand(0);
if (!base.IsMatched(cap))
{
if ((base.runregex.roptions & RegexOptions.ECMAScript) == RegexOptions.None)
{
goto Label_0E4E;
}
goto Label_09E4;
}
if (this.Refmatch(base.MatchIndex(cap), base.MatchLength(cap)))
{
goto Label_09E4;
}
goto Label_0E4E;
}
case 14:
if ((this.Leftchars() > 0) && (this.CharAt(this.Textpos() - 1) != '\n'))
{
goto Label_0E4E;
}
this.Advance();
goto Label_0007;
case 15:
if ((this.Rightchars() > 0) && (this.CharAt(this.Textpos()) != '\n'))
{
goto Label_0E4E;
}
this.Advance();
goto Label_0007;
case 0x10:
if (!base.IsBoundary(this.Textpos(), base.runtextbeg, base.runtextend))
{
goto Label_0E4E;
}
this.Advance();
goto Label_0007;
case 0x11:
if (base.IsBoundary(this.Textpos(), base.runtextbeg, base.runtextend))
{
goto Label_0E4E;
}
this.Advance();
goto Label_0007;
case 0x12:
if (this.Leftchars() > 0)
{
goto Label_0E4E;
}
this.Advance();
goto Label_0007;
case 0x13:
if (this.Textpos() != this.Textstart())
{
goto Label_0E4E;
}
this.Advance();
goto Label_0007;
case 20:
if ((this.Rightchars() > 1) || ((this.Rightchars() == 1) && (this.CharAt(this.Textpos()) != '\n')))
{
goto Label_0E4E;
}
this.Advance();
goto Label_0007;
case 0x15:
if (this.Rightchars() > 0)
{
goto Label_0E4E;
}
this.Advance();
goto Label_0007;
case 0x16:
goto Label_0E4E;
case 0x17:
this.TrackPush(this.Textpos());
this.Advance(1);
goto Label_0007;
case 0x18:
this.StackPop();
if ((this.Textpos() - this.StackPeek()) == 0)
{
this.TrackPush2(this.StackPeek());
this.Advance(1);
}
else
{
this.TrackPush(this.StackPeek(), this.Textpos());
this.StackPush(this.Textpos());
this.Goto(this.Operand(0));
}
goto Label_0007;
case 0x19:
{
this.StackPop();
int num2 = this.StackPeek();
if (this.Textpos() == num2)
{
this.StackPush(num2);
this.TrackPush2(this.StackPeek());
break;
}
if (num2 == -1)
{
this.TrackPush(this.Textpos(), this.Textpos());
break;
}
this.TrackPush(num2, this.Textpos());
break;
}
case 0x1a:
this.StackPush(-1, this.Operand(0));
this.TrackPush();
this.Advance(1);
goto Label_0007;
case 0x1b:
this.StackPush(this.Textpos(), this.Operand(0));
this.TrackPush();
this.Advance(1);
goto Label_0007;
case 0x1c:
{
this.StackPop(2);
int num4 = this.StackPeek();
int num5 = this.StackPeek(1);
int num6 = this.Textpos() - num4;
if ((num5 < this.Operand(1)) && ((num6 != 0) || (num5 < 0)))
{
this.TrackPush(num4);
this.StackPush(this.Textpos(), num5 + 1);
this.Goto(this.Operand(0));
}
else
{
this.TrackPush2(num4, num5);
this.Advance(2);
}
goto Label_0007;
}
case 0x1d:
{
this.StackPop(2);
int num7 = this.StackPeek();
int num8 = this.StackPeek(1);
if (num8 >= 0)
{
this.TrackPush(num7, num8, this.Textpos());
this.Advance(2);
}
else
{
this.TrackPush2(num7);
this.StackPush(this.Textpos(), num8 + 1);
this.Goto(this.Operand(0));
}
goto Label_0007;
}
case 30:
this.StackPush(-1);
this.TrackPush();
this.Advance();
goto Label_0007;
case 0x1f:
this.StackPush(this.Textpos());
this.TrackPush();
this.Advance();
goto Label_0007;
case 0x20:
if ((this.Operand(1) != -1) && !base.IsMatched(this.Operand(1)))
{
goto Label_0E4E;
}
this.StackPop();
if (this.Operand(1) != -1)
{
base.TransferCapture(this.Operand(0), this.Operand(1), this.StackPeek(), this.Textpos());
}
else
{
base.Capture(this.Operand(0), this.StackPeek(), this.Textpos());
}
this.TrackPush(this.StackPeek());
this.Advance(2);
goto Label_0007;
case 0x21:
this.StackPop();
this.TrackPush(this.StackPeek());
this.Textto(this.StackPeek());
this.Advance();
goto Label_0007;
case 0x22:
this.StackPush(this.Trackpos(), base.Crawlpos());
this.TrackPush();
this.Advance();
goto Label_0007;
case 0x23:
this.StackPop(2);
this.Trackto(this.StackPeek());
while (base.Crawlpos() != this.StackPeek(1))
{
base.Uncapture();
}
goto Label_0E4E;
case 0x24:
this.StackPop(2);
this.Trackto(this.StackPeek());
this.TrackPush(this.StackPeek(1));
this.Advance();
goto Label_0007;
case 0x25:
if (!base.IsMatched(this.Operand(0)))
{
goto Label_0E4E;
}
this.Advance(1);
goto Label_0007;
case 0x26:
this.Goto(this.Operand(0));
goto Label_0007;
case 40:
return;
case 0x29:
if (!base.IsECMABoundary(this.Textpos(), base.runtextbeg, base.runtextend))
{
goto Label_0E4E;
}
this.Advance();
goto Label_0007;
case 0x2a:
if (base.IsECMABoundary(this.Textpos(), base.runtextbeg, base.runtextend))
{
goto Label_0E4E;
}
this.Advance();
goto Label_0007;
case 0x83:
case 0x84:
{
this.TrackPop(2);
int num21 = this.TrackPeek();
int newpos = this.TrackPeek(1);
this.Textto(newpos);
if (num21 > 0)
{
this.TrackPush(num21 - 1, newpos - this.Bump());
}
this.Advance(2);
goto Label_0007;
}
case 0x85:
{
this.TrackPop(2);
int num23 = this.TrackPeek();
int num24 = this.TrackPeek(1);
this.Textto(num24);
if (num23 > 0)
{
this.TrackPush(num23 - 1, num24 - this.Bump());
}
this.Advance(2);
goto Label_0007;
}
case 0x86:
{
this.TrackPop(2);
int num27 = this.TrackPeek(1);
this.Textto(num27);
if (this.Forwardcharnext() != ((char)this.Operand(0)))
{
goto Label_0E4E;
}
int num28 = this.TrackPeek();
if (num28 > 0)
{
this.TrackPush(num28 - 1, num27 + this.Bump());
}
this.Advance(2);
goto Label_0007;
}
case 0x87:
{
this.TrackPop(2);
int num29 = this.TrackPeek(1);
this.Textto(num29);
if (this.Forwardcharnext() == ((char)this.Operand(0)))
{
goto Label_0E4E;
}
int num30 = this.TrackPeek();
if (num30 > 0)
{
this.TrackPush(num30 - 1, num29 + this.Bump());
}
this.Advance(2);
goto Label_0007;
}
case 0x88:
{
this.TrackPop(2);
int num31 = this.TrackPeek(1);
this.Textto(num31);
if (!RegexCharClass.CharInClass(this.Forwardcharnext(), this.runstrings[this.Operand(0)]))
{
goto Label_0E4E;
}
int num32 = this.TrackPeek();
if (num32 > 0)
{
this.TrackPush(num32 - 1, num31 + this.Bump());
}
this.Advance(2);
goto Label_0007;
}
case 0x97:
this.TrackPop();
this.Textto(this.TrackPeek());
this.Goto(this.Operand(0));
goto Label_0007;
case 0x98:
this.TrackPop(2);
this.StackPop();
this.Textto(this.TrackPeek(1));
this.TrackPush2(this.TrackPeek());
this.Advance(1);
goto Label_0007;
case 0x99:
{
this.TrackPop(2);
int num3 = this.TrackPeek(1);
this.TrackPush2(this.TrackPeek());
this.StackPush(num3);
this.Textto(num3);
this.Goto(this.Operand(0));
goto Label_0007;
}
case 0x9a:
this.StackPop(2);
goto Label_0E4E;
case 0x9b:
this.StackPop(2);
goto Label_0E4E;
case 0x9c:
this.TrackPop();
this.StackPop(2);
if (this.StackPeek(1) <= 0)
{
this.StackPush(this.TrackPeek(), this.StackPeek(1) - 1);
goto Label_0E4E;
}
this.Textto(this.StackPeek());
this.TrackPush2(this.TrackPeek(), this.StackPeek(1) - 1);
this.Advance(2);
goto Label_0007;
case 0x9d:
{
this.TrackPop(3);
int num9 = this.TrackPeek();
int num10 = this.TrackPeek(2);
if ((this.TrackPeek(1) >= this.Operand(1)) || (num10 == num9))
{
this.StackPush(this.TrackPeek(), this.TrackPeek(1));
goto Label_0E4E;
}
this.Textto(num10);
this.StackPush(num10, this.TrackPeek(1) + 1);
this.TrackPush2(num9);
this.Goto(this.Operand(0));
goto Label_0007;
}
case 0x9e:
case 0x9f:
this.StackPop();
goto Label_0E4E;
case 160:
this.TrackPop();
this.StackPush(this.TrackPeek());
base.Uncapture();
if ((this.Operand(0) != -1) && (this.Operand(1) != -1))
{
base.Uncapture();
}
goto Label_0E4E;
case 0xa1:
this.TrackPop();
this.StackPush(this.TrackPeek());
goto Label_0E4E;
case 0xa2:
this.StackPop(2);
goto Label_0E4E;
case 0xa4:
this.TrackPop();
while (base.Crawlpos() != this.TrackPeek())
{
base.Uncapture();
}
goto Label_0E4E;
case 280:
this.TrackPop();
this.StackPush(this.TrackPeek());
goto Label_0E4E;
case 0x119:
this.StackPop();
this.TrackPop();
this.StackPush(this.TrackPeek());
goto Label_0E4E;
case 0x11c:
this.TrackPop(2);
this.StackPush(this.TrackPeek(), this.TrackPeek(1));
goto Label_0E4E;
case 0x11d:
this.TrackPop();
this.StackPop(2);
this.StackPush(this.TrackPeek(), this.StackPeek(1) - 1);
goto Label_0E4E;
default:
throw new NotImplementedException(SR.GetString("UnimplementedState"));
}
this.Advance(1);
goto Label_0007;
Label_09E4:
this.Advance(1);
goto Label_0007;
Label_0E4E:
this.Backtrack();
goto Label_0007;
}
