Synnefo » ./kamaki

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def _matches(val1, val2, exactMath=True):

    """Case Insensitive match"""

    if exactMath:

        return True if val1.lower() == val2.lower() else False

    else:

        return True if val1.lower().startswith(val2.lower()) else False

def filter_out(d, prefix, exactMatch=False):

    """Remove entries that are prefixed with prefix (case insensitive)

    :param d: (dict) input

    :param prefix: (str) prefix to match input keys against

    :param exactMatch: (bool) key should fully match if True, just prefixed

        with prefix if False

    :returns: (dict) the updated d

    """

    ret = {}

    for key, val in d.items():

        if not _matches(key, prefix, exactMath=exactMatch):

            ret[key] = val

    return ret

def filter_in(d, prefix, exactMatch=False):

    """Keep only entries of d prefixed with prefix

    :param d: (dict) input

    :param prefix: (str) prefix to match input keys against

    :param exactMatch: (bool) key should fully match if True, just prefixed

        with prefix if False

    :returns: (dict) the updated d

    """

    ret = {}

    for key, val in d.items():

        if _matches(key, prefix, exactMath=exactMatch):

            ret[key] = val

    return ret

def path4url(*args):

    """

    :param args: (list of str)

    :returns: (str) a path in the form /args[0]/args[1]/...

    """

    r = '/'.join([''] + [arg.decode('utf-8') if (

        isinstance(arg, str)) else '%s' % arg for arg in args])

    while '//' in r:

        r = r.replace('//', '/')

    return ('/%s' % r.strip('/')) if r else ''

def params4url(params):

    """{'key1':'val1', 'key2':None, 'key3':15} --> "?key1=val1&key2&key3=15"

    :param params: (dict) request parameters in the form key:val

    :returns: (str) http-request friendly in the form ?key1=val1&key2=val2&...

    """

    assert(type(params) is dict)

    result = ''

    dlmtr = '?'

    for name in params:

        result += '%s%s' % (dlmtr, name)

        result += '=%s' % params[name] or result

        dlmtr = '&'

    return result