c++代码

class CStringParsing{
public:CStringParsing(const char* string_, int length){_length = length;_string = string_;_position = 0;_isoverlow = false;}~CStringParsing(){}void  Skip(int offset){_position += offset;}float GetFloat(const char* split){char buf[32]={0};_position+=_substring(buf, 32,split);if(!IsOverlow()&&split) _position += strlen(split);return (float)atof(buf);}int   GetInt(const char* split){char buf[32]={0};_position+=_substring(buf, 32,split);if(!IsOverlow()&&split) _position += strlen(split);return atoi(buf);}const char* GetString(char* buf, int lenght,const char* split){_position+=_substring(buf, lenght,split);if(!IsOverlow()&&split) _position += strlen(split);return buf;}bool IsOverlow(){return _isoverlow;}private:int _min(int x,int y){ if(x<y) return x; else return y; }int _substring(char *buf_, int len_, const char* split_){if(_position>=_length){_isoverlow = true;;return 0;}if(split_==NULL){int p=_min(len_-1,_length-_position);memcpy(buf_, _string+_position, p);buf_[p]=0;return p;}const char* pp = strstr(_string+_position, split_);if(pp==NULL){int p=_min(len_-1,_length-_position);memcpy(buf_, _string+_position, p);buf_[p]=0;return p;}int p=_min(len_-1,pp-(_string+_position));memcpy(buf_, _string+_position, p);buf_[p]=0;return p;}private:int         _length;const char* _string;int         _position;bool        _isoverlow;
};

调用例子: "d:/dir/app data/test.ui 320x568 0 1 "

char szDebugUI[256];
CStringParsing parsing(lpCmdLine, strlen(lpCmdLine));
parsing.GetString(szDebugUI, 256, ".ui");
strcat(szDebugUI,".ui");
parsing.Skip(1);//blank space.
int w = parsing.GetInt("x");
int h = parsing.GetInt(" ");
int island = parsing.GetInt(" ");
int iscaption = parsing.GetInt(NULL);
if(parsing.IsOverlow())return 0;