import re

from inspect import getcallargs

from .error import ValidateException

    if value in t:

        return True

    elif value in f:

        return False

    else:

        raise ValidateException(field=field, msg='%s is not boolean' % field)

    if not re.match(r'^[a-f0-9]*$', value.lower()):

        raise ValidateException(field=field)

    if minlength and len(value)<minlength:

        raise ValidateException(field=field)

    if maxlength and len(value)>maxlength:

        raise ValidateException(field=field)

    return value

def validate(kwd,func, need=True,*args,**kargs):

    '''validate decorator

    use it like this:

        @validate(kwd=userhash, func=vuserhash)

        f(userhash)

    that will validate usrhash with the function vuserhash.

    Every validate function should raise an Exception, if the the value is not valid'''

        try:

    return v