From: Jadhav, Rahul (Rahul) (rjadhav_at_[hidden])
Date: 2004-08-03 02:13:55
> -----Original Message-----
> From: Jadhav, Rahul (Rahul)
> Sent: Tuesday, August 03, 2004 12:33 PM
> To: 'boost_at_[hidden]'
> Subject: problem with subexpressions
>
> Hi All,
> I am not sure if I m doing wrong or there is some problem with library. I want to extract "f23" and "this is corresponding text" from string "f23 : this is corresponding text"
> so I have written regular expression "(f[0-9]{1,})\\s*:\\s*(.*)" so that in match[0] is should have index information for first subexpression and should give me indices of "f23"
> but it gives me whole string as first subexpression.
>
> It may be my mistake but I have spent 2 days and nights on this thing so I thought I should post it. Also I tried to find out a topic related to subexpressions on the mailing list but could not find one. below is the code.
>
> regex_t preg;
> regmatch_t match[3];
>
> if(regcompW(&preg,L"(f[0-9]{1,})\\s*:\\s*(.*)",REG_ICASE|REG_EXTENDED)==0)
> AfxMessageBox(L"successful");
> CString str=L"f23 : this is corresponding text";
>
> wchar_t* ptr=str.GetBuffer(str.GetLength());
>
> if(regexecW(&preg,ptr,3,match,0)!=REG_NOMATCH)
> {
> int i=0;
> while(i<3)
> {
> wchar_t arr[200];
> wcsncpy(arr,(ptr+match[i].rm_so),match[i].rm_eo-match[i].rm_so);
> arr[match[i].rm_eo-match[i].rm_so]='\0';
> ptr=ptr+match[i].rm_eo;
> AfxMessageBox(arr);
> //AfxMessageBox(ptr);
> i++;
> }
> }
>
>
> Thanks
> Rahul Jadhav
>
>
>
>
>