com.jn.langx.util.regexp

接口 NamedGroupMatchResult

所有超级接口:

MatchResult

所有已知子接口:

RegexpMatcher

public interface NamedGroupMatchResult
extends MatchResult

从以下版本开始:

4.5.0

方法概要

限定符和类型	方法和说明
int	end(String groupName) Returns the offset after the last character of the subsequence captured by the given named-capturing group during the previous match operation.
String	group(String groupName) Returns the input subsequence captured by the given named-capturing group during the previous match operation.
List<Map<String,String>>	namedGroups()
List<String>	names()
int	start(String groupName) Returns the start index of the subsequence captured by the given named-capturing group during the previous match operation.

从接口继承的方法 java.util.regex.MatchResult

end, end, group, group, groupCount, start, start

方法详细资料

group

String group(String groupName)

Returns the input subsequence captured by the given named-capturing group during the previous match operation.

If the match was successful but the group specified failed to match any part of the input sequence, then null is returned. Note that some groups, for example (a*), match the empty string. This method will return the empty string when such a group successfully matches the empty string in the input.

参数:

groupName - The name of a named-capturing group in this matcher's pattern

返回:

The (possibly empty) subsequence captured by the named group during the previous match, or null if the group failed to match part of the input

抛出:

IllegalStateException - If no match has yet been attempted, or if the previous match operation failed

IllegalArgumentException - If there is no capturing group in the pattern with the given name

start

int start(String groupName)

Returns the start index of the subsequence captured by the given named-capturing group during the previous match operation.

参数:

groupName - The name of a named-capturing group in this matcher's pattern

返回:

The index of the first character captured by the group, or -1 if the match was successful but the group itself did not match anything

抛出:

IllegalStateException - If no match has yet been attempted, or if the previous match operation failed

IllegalArgumentException - If there is no capturing group in the pattern with the given name

end

int end(String groupName)

Returns the offset after the last character of the subsequence captured by the given named-capturing group during the previous match operation.

参数:

groupName - The name of a named-capturing group in this matcher's pattern

返回:

The offset after the last character captured by the group, or -1 if the match was successful but the group itself did not match anything

抛出:

IllegalStateException - If no match has yet been attempted, or if the previous match operation failed

IllegalArgumentException - If there is no capturing group in the pattern with the given name

namedGroups

List<Map<String,String>> namedGroups()

names

List<String> names()