string_util.cpp

来自「MySql C++ library」· C++ 代码 · 共 53 行

#include <windows.h>

#include <string>
using namespace std;

void strip (string& s)
{
	int i,j = s.size() - 1;  if (!s.size()) return;
	for (i = 0; s[i] == ' ';i++);
	if (i) s.erase(0,i); j = s.size(); if (!j) return; j--;
	for (i=j;i && s[i] == ' ';i--);
	if (i != j) s.erase(i+1,(size_t)-1);
}
//-------------------------------------------------
void escape_string (string& s)
{
	if (!s.size()) return;
	for (unsigned int i = 0;i<s.size();i++)
	{
    switch (s[i]) {
    case '\0':				/* Must be escaped for "mysql" */
      s[i] = '\\';
      s.insert(i,"0",1); i++;
      break;
    case '\n':				/* Must be escaped for logs */
      s[i] = '\\';
      s.insert(i,"n",1); i++;
      break;
    case '\r':
      s[i] = '\\';
      s.insert(i,"r",1); i++;
      break;
    case '\\':
      s[i] = '\\';
      s.insert(i,"\\",1); i++;
      break;
    case '\"':
      s[i] = '\\';
      s.insert(i,"\"",1); i++;
      break;
    case '\'':				/* Better safe than sorry */
      s[i] = '\\';
      s.insert(i,"\'",1); i++;
      break;
    case '\032':			/* This gives problems on Win32 */
      s[i] = '\\';
      s.insert(i,"Z",1); i++;
      break;
		default: break;
    }
	}
}