#!/usr/bin/env python

# -*- coding: utf-8 -*-

import re

VARIABLETYPE = ["None", "Static", "Session", "Alarm"]

opt_parser = re.compile(r'(\w+)\s*(?:=\s*"([^"]+)"\s*|=([^\s]+)\s*)?')

class OptionsType(dict):

def __init__(self):

dict.__init__(self,

is_onchange = False,

is_scada = False,

is_static = False,

variable_type_selection = 0,

unit = None,

min = None,

max = None,

precision = None,

subgroup = None,

other = None,

disable = False,

tags = None)

self.__dict__ = self

def GenOptions(opts):

options = VARIABLETYPE[opts.variable_type_selection]

if options == "None":

options = ""

if opts.is_onchange:

options += " onchange"

if opts.is_scada:

options += " scada"

if opts.is_static:

options += " static"

if opts.min is not None or opts.max is not None:

options += ' min=' + str(opts.min if opts.min is not None else 0)

options += ' max=' + str(opts.max if opts.min is not None else 0)

if opts.precision:

options += ' precision=' + str(opts.precision)

if opts.disable:

options += ' disable=True'

for name in ['subgroup', 'unit', 'other', 'tags']:

content = opts[name]

if content is not None:

quoting = '"' if ' ' in content else ''

options += ' ' + name + '=' + quoting + content + quoting

return options

def ParseOptions(opts):

res = OptionsType()

options = re.findall(opt_parser,opts)

for key,dblquote_value,smpl_value in options:

value = dblquote_value+smpl_value

if value == "":

if key == "onchange":

res.is_onchange = True

elif key in VARIABLETYPE[1:]:

res.variable_type_selection = VARIABLETYPE.index(key)

elif key == "scada":

res.is_scada = True

elif key == "static":

res.is_static = True

else:

if key in ["precision", "min","max"]:

value = int(value)

if key == "disable":

res.disable = True

value = True

if key in res:

res[key] = value

else:

raise Exception("Unknown key in options")

return res