Michael Hannon wrote: > Greetings. While looking into the use of regular expressions in Python, I > saw that it's possible to name match groups using: > > (?P<name>...) > > and then refer to them using: > > (?P=name)
I'm not sure you've got that quite right. IIUC, the (?P=name) syntax is used to match a previously defined group, "in the regular expression itself." (http://docs.python.org/library/re.html) <snip> x = 'Free Fri Fro Fro From' y = re.sub( r'(?P<test>Fro) (?P=test)', r'Frodo (--matched from \g<test>, twice in a row)', x ) # y == 'Free Fri Frodo (--matched from Fro, twice in a row) From' > But, as you can see, to refer to the match I used the "\g" notation (that I > found some place on the web). The \g notation is appropriate for re.sub. HTH, Marty _______________________________________________ Tutor maillist - [email protected] To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
