[Tcl-bugs] [ tcl-Bugs-1178541 ] REG_BOSONLY incorrect with |

[SourceForge.net <no...@so...>]

Bugs item #1178541, was opened at 2005-04-07 15:37
Message generated for change (Tracker Item Submitted) made by Item Submitter
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=110894&aid=1178541&group_id=10894

Category: 42. Regexp
Group: development: 8.5a3
Status: Open
Resolution: None
Priority: 5
Submitted By: Jan Wielemaker (wielemaker)
Assigned to: Pavel Goran (pvgoran)
Summary: REG_BOSONLY incorrect with |

Initial Comment:
Hi,

I've incorporated the Tcl regex code in my project
(www.swi-prolog.org) and found a bug in the regex
code.  I guess that will also affect Tcl.  I didn't
find a patch yet, I have some trouble sorting out the
internals.

In my app it shows as

?-send(regex('foo|bar'), match, 'xxx bar').

which succeeds!

Match (instead of search) sets REG_BOSONLY, but this causes
the regex to be read as \Afoo|bar rather than \A(foo|bar).

Using foo|\Abar, all works fine as well.

      Cheers --- Jan

----------------------------------------------------------------------

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=110894&aid=1178541&group_id=10894