标记化WCHAR字符串 [英] Tokenizing WCHAR string

问题描述

如何识别以下代码中返回的字符串

How to tekenize the string returned in the below code

wchar_t m_VStrBuf[2048];

m_vNumChar=GetPrivateProfileString(_T("List1"),NULL,NULL,m_VStrBuf,2048,m_VFileName);

缓冲区(m_VFileName)中填充了一个或多个以NULL终止的字符串；

The buffer(m_VFileName) is filled with one or more null-terminated strings; the last string is followed by a second null character.

推荐答案

wchar_t *ts;

ts = m_VFileName;
while (wcslen(ts) != 0)
{
  //process string ts
  ts += wcslen(ts) + sizeof(wchar_t);  // skip to next string in result buffer
}

已键入但未运行/调试(但应关闭)

Typed but not run / debugged (but it should be close)
[edit - skip over the null too]

您可以使用strtok().像这样

You can use strtok(). like this

char * pch;

pch = strtok (m_VStrBuf,","); // Here , is seprator.
while (pch != NULL)
{
  pch = strtok (NULL, ",");
}

注意:要从文件u中获取值，必须使用分隔符存储该值.

Note : To fetch value from file u have to stored the value with seprator.

假设您要保留字符串，可以使用此(经过测试的)函数.

Assuming you want to keep the strings, you can use this (tested) function.

void tokenise_wstr(const wchar_t * str, size_t len, 
               std::vector<std::wstring>& strings)
{
  size_t prev = 0;
  size_t next = wcslen(str);

  while ( (prev < next ) && (next < len))
  {
    strings.push_back(
      std::wstring(str + prev, str + next + 1));
    prev = next + 1;
    next = prev + wcslen(str + prev);
  }
}

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