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java.lang.Objectnet.sf.saxon.functions.regex.JRegexIterator
public class JRegexIterator
Class JRegexIterator - provides an iterator over matched and unmatched substrings. This implementation of RegexIterator uses the JDK regular expression engine.
| Nested Class Summary |
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| Nested classes/interfaces inherited from interface net.sf.saxon.functions.regex.RegexIterator |
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RegexIterator.OnGroup |
| Field Summary |
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| Fields inherited from interface net.sf.saxon.om.SequenceIterator |
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GROUNDED, LAST_POSITION_FINDER, LOOKAHEAD |
| Constructor Summary | |
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JRegexIterator(String string,
Pattern pattern)
Construct a RegexIterator. |
|
| Method Summary | |
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void |
close()
Close the iterator. |
Item |
current()
Get the current item in the sequence |
SequenceIterator |
getAnother()
Get another iterator over the same items |
int |
getProperties()
Get properties of this iterator, as a bit-significant integer. |
String |
getRegexGroup(int number)
Get a substring that matches a parenthesised group within the regular expression |
SequenceIterator |
getRegexGroupIterator()
Get a sequence containing all the regex groups (except group 0, because we want to use indexing from 1). |
boolean |
isMatching()
Determine whether the current item is a matching item or a non-matching item |
Item |
next()
Get the next item in the sequence |
int |
position()
Get the position of the current item in the sequence |
void |
processMatchingSubstring(XPathContext context,
RegexIterator.OnGroup action)
Process a matching substring, performing specified actions at the start and end of each captured subgroup. |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
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public JRegexIterator(String string,
Pattern pattern)
string - the string to be analysedpattern - the regular expression| Method Detail |
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public Item next()
next in interface SequenceIteratorpublic Item current()
current in interface SequenceIteratorpublic int position()
position in interface SequenceIteratorpublic void close()
SequenceIterator(Currently, closing an iterator is important only when the data is being "pushed" in another thread. Closing the iterator terminates that thread and means that it needs to do no additional work. Indeed, failing to close the iterator may cause the push thread to hang waiting for the buffer to be emptied.)
close in interface SequenceIteratorpublic SequenceIterator getAnother()
getAnother in interface SequenceIteratorpublic int getProperties()
getProperties in interface SequenceIteratorSequenceIterator.GROUNDED, SequenceIterator.LAST_POSITION_FINDER,
and SequenceIterator.LOOKAHEAD. It is always
acceptable to return the value zero, indicating that there are no known special properties.
It is acceptable for the properties of the iterator to change depending on its state.public boolean isMatching()
isMatching in interface RegexIteratorpublic String getRegexGroup(int number)
getRegexGroup in interface RegexIteratornumber - the number of the group to be obtained
public SequenceIterator getRegexGroupIterator()
getRegexGroupIterator in interface RegexIterator
public void processMatchingSubstring(XPathContext context,
RegexIterator.OnGroup action)
throws XPathException
RegexIterator.OnGroup methods onGroupStart() and onGroupEnd().
processMatchingSubstring in interface RegexIteratorcontext - the dynamic evaluation contextaction - defines the processing to be performed at the start and end of a group
XPathException
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