c++ - Would Rewriting It Using Regex Shorten/Beautify The Code? -

the problem little challenging because want code using std::regex believing easier read , faster write.

but seems can code 1 way (shown below).

somehow mind not see solution using std::regex.

how code it?

would using std::regex_search job?

/* input: data coming in: /product/country/123456/city/7890/g.json  input: url parameter format: /product/country/<id1:[0-9]+>/city/<id2:[0-9]+>/g.json  output: std::vector<std::string> urlparams  sample output: urlparams[0] = "123456" urlparams[1] = "7890" */  bool parseit(const char *path, const char* urlroute, std::vector<std::string> *urlparams) {    const dword bufsz = 2000;    char buf[bufsz];    dword dwsize = strlen(urlroute);    urlparams.clear();     int j = 0;    int = 0;    bool = false;    (i = 0; < dwsize; i++)    {        char c1 = path[j++];        char c2 = urlroute[i];        if (c2 == '<')        {            = true;            while (c2 != '/')            {                 i++;                c2 = urlroute[i];            }            int k = 0;            memset(buf, 0, bufsz);            while (c1 != '/')            {                buf[k++] = c1;                c1 = path[j++];            }            urlparams->push_back(_strdup(buf));            int b = 1;        }        if (c1 != c2)        {            return false;        }        if (c2 != '<')        {            if (c1 == c1)            {             }            else            {                return false;            }         }      }      if (dwsize == && good)     {         return true;     }      return false; } 

the easiest 1 i've found (might not best should work input data) is

std::string subject("/product/country/123456/city/7890/g.json"); std::regex re("/(\d+)/city/(\d+)/"); std::smatch match; std::regex_search(subject, match, re); 

it matches 2 values per line. / matches slash @ beginning/end , () capture. have convert string type though.