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java.lang.Objectgnu.regexp.REMatch
public final class REMatch
An instance of this class represents a match completed by a gnu.regexp matching function. It can be used to obtain relevant information about the location of a match or submatch.
Field Summary | |
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(package private) int |
anchor
|
(package private) int |
eflags
|
(package private) int[] |
end
|
(package private) int |
index
|
(package private) REMatch |
next
|
(package private) int |
offset
|
(package private) int[] |
start
|
Constructor Summary | |
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REMatch(int subs,
int anchor,
int eflags)
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Method Summary | |
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(package private) void |
assignFrom(REMatch other)
|
(package private) void |
clear(int index)
Clears the current match and moves the offset to the new index. |
java.lang.Object |
clone()
|
(package private) void |
finish(CharIndexed text)
|
int |
getEndIndex()
Returns the index within the input string where the match in its entirety ends. |
int |
getEndIndex(int sub)
Returns the index within the input string used to generate this match where subexpression number sub ends, or -1 if
the subexpression does not exist. |
int |
getStartIndex()
Returns the index within the input text where the match in its entirety began. |
int |
getStartIndex(int sub)
Returns the index within the input string used to generate this match where subexpression number sub begins, or -1 if
the subexpression does not exist. |
int |
getSubEndIndex(int sub)
Deprecated. Use getEndIndex(int) instead |
int |
getSubStartIndex(int sub)
Deprecated. Use getStartIndex(int) instead. |
java.lang.String |
substituteInto(java.lang.String input)
Substitute the results of this match to create a new string. |
java.lang.String |
toString()
Returns the string matching the pattern. |
java.lang.String |
toString(int sub)
Returns the string matching the given subexpression. |
Methods inherited from class java.lang.Object |
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equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Field Detail |
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int eflags
int offset
int anchor
int index
int[] start
int[] end
REMatch next
Constructor Detail |
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REMatch(int subs, int anchor, int eflags)
Method Detail |
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public java.lang.Object clone()
clone
in class java.lang.Object
void assignFrom(REMatch other)
void finish(CharIndexed text)
void clear(int index)
public java.lang.String toString()
REMatch myMatch = myExpression.getMatch(myString);
if (myMatch != null) System.out.println("Regexp found: "+myMatch);
toString
in class java.lang.Object
public int getStartIndex()
public int getEndIndex()
REMatch myMatch = myExpression.getMatch(myString);
can be viewed (given that myMatch is not null) by creating
String theMatch = myString.substring(myMatch.getStartIndex(),
myMatch.getEndIndex());
But you can save yourself that work, since the toString()
method (above) does exactly that for you.
public java.lang.String toString(int sub)
sub
- Index of the subexpression.public int getSubStartIndex(int sub)
-1
if
the subexpression does not exist. The initial position is zero.
sub
- Subexpression indexpublic int getStartIndex(int sub)
-1
if
the subexpression does not exist. The initial position is zero.
sub
- Subexpression indexpublic int getSubEndIndex(int sub)
-1
if
the subexpression does not exist. The initial position is zero.
sub
- Subexpression indexpublic int getEndIndex(int sub)
-1
if
the subexpression does not exist. The initial position is zero.
sub
- Subexpression indexpublic java.lang.String substituteInto(java.lang.String input)
$0
through $9
. $0
matches
the full substring matched; $n
matches
subexpression number n.
input
- A string consisting of literals and $n
tokens.
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