Re: Named Group support for regular expressions in TR1?
On Aug 11, 8:59 am, mlimber <mlim...@gmail.com> wrote:
On Aug 10, 5:21 pm, DomoC...@gmail.com wrote:
When I attempt to name a group in a regular expression under TR1, the
library throws a non descriptive error "regular expression error".
The numbered reference group works, as in /1 to reference the first
group. However, any attempt to use (?<myGroup>expression) fails?
Does anyone have any insight into this?
How about minimal but complete code (and input) to reproduce the
problem? Compare this FAQ on posting non-working code:
http://www.parashift.com/c++-faq-lite/how-to-post.html#faq-5.8
Cheers! --M
Certainly...
// Compiler Information
Version 9.0.21022.8 RTM
Microsoft .NET Framework
Version 3.5
Installed Edition: Enterprise
Microsoft Visual C++ 2008 91899-153-0000007-60443
// Operating System
Windows Vista
#include <string>
using std::string;
// This example should be compiled with visual studio 2008, with the
TR1 update
// TR1 Update Link :
http://www.microsoft.com/downloads/details.aspx?FamilyId=D466226B-8DAB-44=
5F-A7B4-448B326C48E7&displaylang=en
#include <regex>
using namespace std::tr1;
int main(int argc, char* argv[])
{
try
{
// this works
regex pattern1( "<[\\?](.+)[\\?]>?" );
// this fails
regex pattern2( "<[\\?](?'groupName'.+)[\\?]>?" );
// so does this
regex pattern3( "<[\\?](?<groupName>.+)[\\?]>?" );
}
catch (std::exception& exc)
{
// shows up as "regular expression error", "unknown (?'groupName')
would have been nice :/ oh well
string dbg = exc.what();
}
return 0;
}