regex \b behaviour in python

[André Malo]

* Walter Cruz wrote:

> irb(main):001:0>"walter ' cruz".split(/\b/)
> => ["walter", " ' ", "cruz"]
> 
> and in php:
> 
> Array
> (
>     [0] =>
>     [1] => walter
>     [2] =>  '
>     [3] => cruz
>     [4] =>
> )
> 
> 
> But in python the behaviour of \b is differente from ruby or php.

My python here does the same, actually:

$ cat foo.py
import re

x = "walter ' cruz"
s = 0
r = []
for m in re.finditer(r'\b', x):
    p = m.start()
    if s != p:
        r.append(x[s:p])
        s = p

print r

$ python2.4 foo.py
['walter', " ' ", 'cruz']
$ python2.5 foo.py
['walter', " ' ", 'cruz']
$

nd
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