digitalmars.D.bugs - [Issue 9211] New: regex lookahead, (?=(\d\d\d)+\b) failed
- d-bugmail puremagic.com (21/21) Dec 26 2012 http://d.puremagic.com/issues/show_bug.cgi?id=9211
- d-bugmail puremagic.com (36/36) Dec 27 2012 http://d.puremagic.com/issues/show_bug.cgi?id=9211
- d-bugmail puremagic.com (11/11) Dec 27 2012 http://d.puremagic.com/issues/show_bug.cgi?id=9211
- d-bugmail puremagic.com (12/12) Dec 29 2012 http://d.puremagic.com/issues/show_bug.cgi?id=9211
- d-bugmail puremagic.com (9/9) Jan 02 2013 http://d.puremagic.com/issues/show_bug.cgi?id=9211
- d-bugmail puremagic.com (9/9) Jan 02 2013 http://d.puremagic.com/issues/show_bug.cgi?id=9211
- d-bugmail puremagic.com (8/8) Jan 02 2013 http://d.puremagic.com/issues/show_bug.cgi?id=9211
http://d.puremagic.com/issues/show_bug.cgi?id=9211 Summary: regex lookahead, (?=(\d\d\d)+\b) failed Product: D Version: D2 Platform: All OS/Version: All Status: NEW Severity: normal Priority: P2 Component: Phobos AssignedTo: nobody puremagic.com ReportedBy: p.summerland gmail.com 14:13:35 PST --- The following failed for more than six digits: auto rx_bf_ddd = regex( r"(?<=\d)(?=(\d\d\d)+\b)", "g"); writefln( "rx_bf_ddd: %s ", replace(digits, rx_bf_ddd, ",") ); Using (\d{3}) i/o (\d\d\d) worked. DMD64 D Compiler v2.060 -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
Dec 26 2012
http://d.puremagic.com/issues/show_bug.cgi?id=9211 Dmitry Olshansky <dmitry.olsh gmail.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |dmitry.olsh gmail.com 08:15:19 PST --- Now that was neasty. The bug lurked in a branch-test code of *-repetition. It was too optimistic optimization and it was curbed down back then. Looks like one case slipped through. The reduced test case doesn't require lookahead at all: version A1 prints [["123", "12", "3"]] (!!) version A2 prints [["1234", "3", "4"]] The bug is triggered in a specific scenarios but is quite deadly. import std.regex, std.stdio; int main(string[] args) { version(A1) { auto rx_1 = regex(r"^(\w)*(\d)"); auto m = match("1234", rx_1); auto captures = m.front; writefln("%s", captures); } version(A2) { auto rx_2 = regex(r"^([0-9])*(\d)"); auto m2 = match("1234", rx_2); auto captures2 = m2.front; writefln("%s", captures2); } return 0; } -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
Dec 27 2012
http://d.puremagic.com/issues/show_bug.cgi?id=9211 Dmitry Olshansky <dmitry.olsh gmail.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Keywords| |pull 10:47:11 PST --- https://github.com/D-Programming-Language/phobos/pull/1040 https://github.com/D-Programming-Language/phobos/pull/1041 -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
Dec 27 2012
http://d.puremagic.com/issues/show_bug.cgi?id=9211 Commits pushed to master at https://github.com/D-Programming-Language/phobos https://github.com/D-Programming-Language/phobos/commit/4a08974927ffd467ba05a20f42c72a5fbc500f71 fix issue 9211 A leftover from semantically incorrect optimization in std.regex https://github.com/D-Programming-Language/phobos/commit/efb7a7b5100ea133ef68f5aa65f9e240f20672d4 Regex bugfix (issue 9211). I assume FreeBSD's failure is unrelated. -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
Dec 29 2012
http://d.puremagic.com/issues/show_bug.cgi?id=9211 Commit pushed to 2.061 at https://github.com/D-Programming-Language/phobos https://github.com/D-Programming-Language/phobos/commit/6ed2e15cf4a35e274adb8385b3ee8125326509f9 Regex bugfix (issue 9211). I assume FreeBSD's failure is unrelated. -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
Jan 02 2013
http://d.puremagic.com/issues/show_bug.cgi?id=9211 Dmitry Olshansky <dmitry.olsh gmail.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution| |FIXED -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
Jan 02 2013
http://d.puremagic.com/issues/show_bug.cgi?id=9211 Commit pushed to staging at https://github.com/D-Programming-Language/phobos https://github.com/D-Programming-Language/phobos/commit/6ed2e15cf4a35e274adb8385b3ee8125326509f9 -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
Jan 02 2013