如何使用正则表达式从 CString 中提取名称? [英] How to you regex to extract just the name from a CString?

问题描述

采用具有以下定义的 CString:

Take a CString that has the following definition:

CString strNameText = _T("Mr Happy [12]");

我有一系列的名字，所有的名字都有空格，最后是括号.现在我只想从字符串中提取名称.

I have a series of names with all have the space with a number is brackets at the end. Now I want to extract just the name from the string.

我意识到我可以找到"的第一个索引[" 然后提取左侧的文本直到该索引.但是我可以使用任何正则表达式命令来做同样的事情吗?

I realise that I can find the first index of " [" and then extract the text on the left up to that index. But can I use any regex command to do the same?

推荐答案

我可能会建议在此处替换正则表达式，以删除字符串末尾的括号术语.

I might suggest a regex replacement here, to remove the bracketed term at the end of the string.

std::string strNameText ("Mr Happy [12]");
std::regex r ("\\s+\\[\\d+\\]$");
std::cout << std::regex_replace (strNameText, r, "");  // Mr Happy

---

C++ 示例

#include <regex>

CString strNameText = _T("Mr Happy [12]");

std::string s1 = CT2A(strNameText);
std::regex r("\\s+\\[\\d+\\]$");
std::string s2 = std::regex_replace(s1, r, "");

return CString(s2.c_str());

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