splitting words with brackets

[Justin Azoff]

Paul McGuire wrote:
> Comparitive timing of pyparsing vs. re comes in at about 2ms for pyparsing,
> vs. 0.13 for re's, so about 15x faster for re's.  If psyco is used (and we
> skip the first call, which incurs all the compiling overhead), the speed
> difference drops to about 7-10x.  I did try compiling the re, but this
> didn't appear to make any difference - probably user error.

That is because of how the methods in the sre module are implemented...
Compiling a regex really just saves you a dictionary lookup.

def findall(pattern, string, flags=0):
    """snip"""
    return _compile(pattern, flags).findall(string)

def compile(pattern, flags=0):
    """snip"""
    return _compile(pattern, flags)

def _compile(*key):
    # internal: compile pattern
    cachekey = (type(key[0]),) + key
    p = _cache.get(cachekey)
    if p is not None:
        return p
    #snip

-- 
- Justin