internal override boolean match(Matcher matcher, int i, CharSequence seq)
{
int savedTo = matcher.to;
boolean conditionMatched = false;
// Relax transparent region boundaries for lookahead
if (matcher.transparentBounds)
matcher.to = matcher.getTextLength();
try {
if (i < matcher.to) {
conditionMatched = !cond.match(matcher, i, seq);
} else {
// If a negative lookahead succeeds then more input
// could cause it to fail!
matcher._requireEnd = true;
conditionMatched = !cond.match(matcher, i, seq);
}
} finally {
// Reinstate region boundaries
matcher.to = savedTo;
}
return conditionMatched && next.match(matcher, i, seq);
}
int check(Matcher matcher, int i, CharSequence seq) {
int ch;
boolean left = false;
int startIndex = matcher.from;
int endIndex = matcher.to;
if (matcher.transparentBounds) {
startIndex = 0;
endIndex = matcher.getTextLength();
}
if (i > startIndex) {
ch = Character.codePointBefore(seq, i);
left = (isWord(ch) ||
((Character.getType(ch) == Character.NON_SPACING_MARK)
&& hasBaseCharacter(matcher, i-1, seq)));
}
boolean right = false;
if (i < endIndex) {
ch = Character.codePointAt(seq, i);
right = (isWord(ch) ||
((Character.getType(ch) == Character.NON_SPACING_MARK)
&& hasBaseCharacter(matcher, i, seq)));
} else {
// Tried to access char past the end
matcher._hitEnd = true;
// The addition of another char could wreck a boundary
matcher._requireEnd = true;
}
return ((left ^ right) ? (right ? LEFT : RIGHT) : NONE);
}
internal override boolean match(Matcher matcher, int i, CharSequence seq)
{
int savedTo = matcher.to;
boolean conditionMatched = false;
// Relax transparent region boundaries for lookahead
if (matcher.transparentBounds)
matcher.to = matcher.getTextLength();
try {
conditionMatched = cond.match(matcher, i, seq);
} finally {
// Reinstate region boundaries
matcher.to = savedTo;
}
return conditionMatched && next.match(matcher, i, seq);
}
internal override boolean match(Matcher matcher, int i, CharSequence seq)
{
int endIndex = (matcher.anchoringBounds) ?
matcher.to : matcher.getTextLength();
if (i < endIndex) {
char ch = seq.charAt(i);
if (ch == '\n') {
// If not multiline, then only possible to
// match at very end or one before end
if (multiline == false && i != endIndex - 1)
return false;
// If multiline return next.match without setting
// matcher.hitEnd
if (multiline)
return next.match(matcher, i, seq);
} else {
return false;
}
}
// Matching because at the end or 1 before the end;
// more input could change this so set hitEnd
matcher._hitEnd = true;
// If a $ matches because of end of input, then more input
// could cause it to fail!
matcher._requireEnd = true;
return next.match(matcher, i, seq);
}
internal override boolean match(Matcher matcher, int i, CharSequence seq)
{
int endIndex = (matcher.anchoringBounds) ?
matcher.to : matcher.getTextLength();
if (!multiline) {
if (i < endIndex - 2)
return false;
if (i == endIndex - 2) {
char ch = seq.charAt(i);
if (ch != '\r')
return false;
ch = seq.charAt(i + 1);
if (ch != '\n')
return false;
}
}
// Matches before any line terminator; also matches at the
// end of input
// Before line terminator:
// If multiline, we match here no matter what
// If not multiline, fall through so that the end
// is marked as hit; this must be a /r/n or a /n
// at the very end so the end was hit; more input
// could make this not match here
if (i < endIndex) {
char ch = seq.charAt(i);
if (ch == '\n') {
// No match between \r\n
if (i > 0 && seq.charAt(i-1) == '\r')
return false;
if (multiline)
return next.match(matcher, i, seq);
} else if (ch == '\r' || ch == '\u0085' ||
(ch|1) == '\u2029') {
if (multiline)
return next.match(matcher, i, seq);
} else { // No line terminator, no match
return false;
}
}
// Matched at current end so hit end
matcher._hitEnd = true;
// If a $ matches because of end of input, then more input
// could cause it to fail!
matcher._requireEnd = true;
return next.match(matcher, i, seq);
}
internal override boolean match(Matcher matcher, int i, CharSequence seq)
{
int startIndex = matcher.from;
int endIndex = matcher.to;
if (!matcher.anchoringBounds) {
startIndex = 0;
endIndex = matcher.getTextLength();
}
// Perl does not match ^ at end of input even after newline
if (i == endIndex) {
matcher._hitEnd = true;
return false;
}
if (i > startIndex) {
char ch = seq.charAt(i-1);
if (ch != '\n') {
return false;
}
}
return next.match(matcher, i, seq);
}
internal override boolean match(Matcher matcher, int i, CharSequence seq)
{
int endIndex = (matcher.anchoringBounds) ?
matcher.to : matcher.getTextLength();
if (i == endIndex) {
matcher._hitEnd = true;
return next.match(matcher, i, seq);
}
return false;
}