Issue with regular expressions

[Gerard Flanagan]

On Apr 29, 3:46 pm, Julien <jpha... at gmail.com> wrote:
> Hi,
>
> I'm fairly new in Python and I haven't used the regular expressions
> enough to be able to achieve what I want.
> I'd like to select terms in a string, so I can then do a search in my
> database.
>
> query = '   "  some words"  with and "without    quotes   "  '
> p = re.compile(magic_regular_expression)   $ <--- the magic happens
> m = p.match(query)
>
> I'd like m.groups() to return:
> ('some words', 'with', 'and', 'without quotes')
>
> Is that achievable with a single regular expression, and if so, what
> would it be?
>
> Any help would be much appreciated.
>

With simpleparse:

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

from simpleparse.parser import Parser
from simpleparse.common import strings
from simpleparse.dispatchprocessor import DispatchProcessor, getString


grammar = '''
text         := (quoted / unquoted / ws)+
quoted       := string
unquoted     := -ws+
ws           := [ \t\r\n]+
'''

class MyProcessor(DispatchProcessor):

    def __init__(self, groups):
        self.groups = groups

    def quoted(self, val, buffer):
        self.groups.append(' '.join(getString(val, buffer)
[1:-1].split()))

    def unquoted(self, val, buffer):
        self.groups.append(getString(val, buffer))

    def ws(self, val, buffer):
        pass

groups = []
parser = Parser(grammar, 'text')
proc = MyProcessor(groups)
parser.parse(TESTS[1][1][0], processor=proc)

print groups
----------------------------------------------------------

G.