[Tutor] Regex puzzlement

[Bill Mill]

Hey, that last message didn't make sense. What I meant was that it was
interpreted as a character range from ')' to ';', where:

In [36]: ord(')')
Out[36]: 41

In [32]: ord(';')
Out[32]: 59

In [33]: ord('1')
Out[33]: 49

In [34]: ord('a')
Out[34]: 97

so anything with an ord between 41 and 59 matches your regex.

Peace
Bill Mill

On Sun, 8 Aug 2004 14:57:57 -0400, Bill Mill <bill.mill at gmail.com> wrote:
> from the re documentation
> (http://www.python.org/doc/current/lib/re-syntax.html):
>     If you want to include a "]" or a "-" inside a set, precede it
> with a backslash
> 
> What happened is that the '-' was interpreted by the regex module as
> meaning that you had presented a character range from '\\' to ';'.
> 
> In [31]: ord('\\')
> Out[31]: 92
> 
> In [32]: ord(';')
> Out[32]: 59
> 
> In [33]: ord('1')
> Out[33]: 49
> 
> In [34]: ord('a')
> Out[34]: 97
> 
> Thus, anything with an ord between 92 and 59 would be interpreted as
> matching your regex.
> 
> Peace
> Bill Mill
> 
> 
> 
> On Sun, 8 Aug 2004 19:10:43 +0100, Alan Gauld
> <alan.gauld at blueyonder.co.uk> wrote:
> > My turn to be confused by a regex...
> >
> > >>> import re
> > >>> r = re.compile('[&()-;:,.?!]')
> > >>> r.findall('Here is one, or two. but not 6 or 7')
> > [',', '.', '6', '7']
> > >>>
> >
> > Why is it finding the numbers?
> > Presumably some weird regex convention amongst the chars I've
> > put in the group, but what? And how do I get rid of it?
> >
> > Alan G.
> >
> > _______________________________________________
> > Tutor maillist  -  Tutor at python.org
> > http://mail.python.org/mailman/listinfo/tutor
> >
>