On Mon, Mar 23, 2009 at 6:20 PM, Taylor Venable <tay...@metasyntax.net> wrote: > On Mon, Mar 23, 2009 at 08:48:50AM +0900, Ivan Raikov wrote: >> I doubt this is the case, since the regex unit is almost identical >> between Chicken 3 and Chicken 4. Taylor, can you compile Chicken with >> the attached regex.scm and see if there is any routine from the regex >> unit that is called at the point when the build process gets stuck? > > I can trigger the bug using Chicken 3.4.7 when compiled with the > supplied regex.scm file (again I can do this by varying the -:s > parameter until it gets stuck). > > A backtrace from GCC is attached (it continues to repeat through many > frames after the output given). It exhibits behaviour similar to that > when using the regex.scm that comes with Chicken 3.4.7 normally. The > regex.c file which is generated is on my website at: > > http://real.metasyntax.net:2357/tmp/regex-pcre.c.gz > > (Probably just my ignorance talking here again, but even though the > header on the file says PCRE, there are a lot of references to irregex > scattered throughout that file.) >
It seems that one of the regexen's compiled in the definitions for `absolute-pathname?' or `decompose-pathname' triggers a loop in `nfa-join-transitions!' in the "files.scm" unit (these are executed at toplevel, outside of the scope of the associated lambdas). cheers, felix _______________________________________________ Chicken-users mailing list Chicken-users@nongnu.org http://lists.nongnu.org/mailman/listinfo/chicken-users
