Re: Issue with regular expressions

On Apr 29, 3:46 pm, Julien <jpha...@xxxxxxxxx> 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.
.

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