[Issue 10802] New: std.regex: ctRegex fails to compile with backreference

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http://d.puremagic.com/issues/show_bug.cgi?id=10802

           Summary: std.regex: ctRegex fails to compile with backreference
           Product: D
           Version: D2
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Phobos
        AssignedTo: nobody at puremagic.com
        ReportedBy: dmitry.olsh at gmail.com


--- Comment #0 from Dmitry Olshansky <dmitry.olsh at gmail.com> 2013-08-11 14:04:41 PDT ---
Test-case:

import std.algorithm, std.regex;

void main()
{
    auto cr = ctRegex!`(a)b\1`;
    auto m = match("abaab", cr); 
    assert(m);
    assert(m.hit == "aba");
}

Produces:

std\regex.d(6447): Error: found '..' when expecting ';' following statement
std\regex.d(6447): Error: found ']' when expecting ';' following statement
std\regex.d(6447): Error: dotvar has no effect in expression
((*__withSym).matches[cast(uint)1].begin)
std\regex.d(6447): Error: dotvar has no effect in expression
((*__withSym).matches[cast(uint)1].end)
std\regex.d(6448): Error: undefined identifier referenced
std\regex.d(6448): Error: undefined identifier referenced
std\regex.d(6451): Error: undefined identifier referenced
std\regex.d(6453): Error: undefined identifier referenced
Failed: "dmd" "-v" "-o-" "test_reg.d" "-I."

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