[Issue 7440] New: ctRegex does not work when using alternatives ('|') involving a '+' inside non-capturing group ('(?:…)')

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=7440

           Summary: ctRegex does not work when using alternatives ('|')
                    involving a '+' inside non-capturing group ('(?:…)')
           Product: D
           Version: D2
          Platform: All
        OS/Version: All
            Status: NEW
          Keywords: rejects-valid
          Severity: normal
          Priority: P2
         Component: Phobos
        AssignedTo: nobody at puremagic.com
        ReportedBy: kennytm at gmail.com


--- Comment #0 from kennytm at gmail.com 2012-02-05 01:51:58 PST ---
Test case:

------------------------------------------------------------------------------
import std.regex;

// using capturing group has no problem.
enum bug7440a_1_workaround = ctRegex!`(b*|d+)`;
enum bug7440a_2_workaround = ctRegex!`(a|b+)`;
enum bug7440a_3_workaround = ctRegex!`(a|[^a]+)`;

// using '|' inside a '(?:...)' may cause InfiniteEnd or some other error.
enum bug7440a_1 = ctRegex!`(?:b*|d+)`;
enum bug7440a_2 = ctRegex!`(?:a|b+)`;
enum bug7440a_3 = ctRegex!`(?:a|[^a]+)`;
------------------------------------------------------------------------------

-- 
Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email
------- You are receiving this mail because: -------