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std::match_results::str

提供: cppreference.com
< cpp‎ | regex‎ | match results

 
 
正規表現ライブラリ
クラス
Original:
Classes
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basic_regex(C++11)
sub_match(C++11)
match_results(C++11)
アルゴリズム
Original:
Algorithms
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regex_match(C++11)
regex_search(C++11)
regex_replace(C++11)
イテレータ
Original:
Iterators
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regex_iterator(C++11)
regex_token_iterator(C++11)
例外
Original:
Exceptions
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regex_error(C++11)
形質
Original:
Traits
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regex_traits(C++11)
定数
Original:
Constants
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syntax_option_type(C++11)
match_flag_type(C++11)
error_type(C++11)
 
std::match_results
メンバ関数
Original:
Member functions
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match_results::match_results
match_results::~match_results
match_results::operator=
match_results::get_allocator
状態
Original:
State
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match_results::ready
要素アクセスの循環参照を解除するために使用されている
Original:
Element access
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match_results::size
match_results::max_size
match_results::empty
match_results::length
match_results::position
match_results::str
match_results::operator_at
match_results::prefix
match_results::suffix
イテレータ
Original:
Iterators
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match_results::begin
match_results::cbegin
match_results::end
match_results::cend
フォーマット
Original:
Format
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match_results::format
修飾子
Original:
Modifiers
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match_results::swap
 
string_type str( size_type n = 0 ) const;
(C + + 11以来)
指示されたサブマッチを表す文字列を返します。.
Original:
Returns a string representing the indicated sub-match.
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n == 0場合、全体の一致した式を表す文字列が返されます。.
Original:
If n == 0, a string representing entire matched expression is returned.
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n > 0 && n < size()場合は、文字列を表す N番目のサブマッチが返されます.
Original:
If n > 0 && n < size(), a string representing nth sub-match is returned.
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n >= size()場合は、比類のないマッチしたことを表す文字列が返されます.
Original:
if n >= size(), a string representing the unmatched match is returned.
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コー​​ルはstring_type((*this)[n])と同等です;
Original:
The call is equivalent to string_type((*this)[n]);
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目次

[編集] パラメータ

n -
返すために一致しているかを指定する整数
Original:
integral number specifying which match to return
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[編集] 値を返します

指定された一致またはサブマッチを表す文字列を返します。.
Original:
Returns a string representing the specified match or sub match.
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[編集]

#include <iostream>
#include <regex>
#include <string>
 
int main()
{
    std::regex re("a(a)*b");
    std::string target("aaab");
    std::smatch sm;
 
    std::regex_match(target, sm, re);
    std::cout << sm.str(1) << '\n';
}

Output:

aaa

[編集] も参照してください

指定されたサブマッチが返されます
Original:
returns specified sub-match
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(パブリックメンバ関数) [edit]