knipknap/exscript

#
# Copyright (C) 2010-2017 Samuel Abels
# The MIT License (MIT)
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files
# (the "Software"), to deal in the Software without restriction,
# including without limitation the rights to use, copy, modify, merge,
# publish, distribute, sublicense, and/or sell copies of the Software,
# and to permit persons to whom the Software is furnished to do so,
# subject to the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
# IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
# CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
from __future__ import absolute_import
import copy
from .template import Template
from .scope import Scope


class Program(Scope):

    def __init__(self, lexer, parser, variables, **kwargs):
        Scope.__init__(self, 'Program', lexer, parser, None, **kwargs)
        self.variables = variables
        self.init_variables = variables
        self.add(Template(lexer, parser, self))

    def init(self, *args, **kwargs):
        for key in kwargs:
            if key.find('.') >= 0 or key.startswith('_'):
                continue
            if type(kwargs[key]) == type([]):
                self.init_variables[key] = kwargs[key]
            else:
                self.init_variables[key] = [kwargs[key]]

    def execute(self, *args, **kwargs):
        self.variables = copy.copy(self.init_variables)
        if 'variables' in kwargs:
            self.variables.update(kwargs.get('variables'))
        self.value(self)
        return self.variables