{
    "info": {
        "author": "Catstyle",
        "author_email": "catstyle.lee@gmail.com",
        "bugtrack_url": null,
        "classifiers": [
            "Development Status :: 3 - Alpha",
            "Intended Audience :: Developers",
            "License :: OSI Approved :: MIT License",
            "Programming Language :: Python :: 2.7",
            "Programming Language :: Python :: 3",
            "Topic :: Software Development :: Build Tools"
        ],
        "description": "yasm\n==============\n\nstate machine for humans\n\nThere are two types of developers in this world: those who love state\nmachines and those who *will* eventually.\n\nI fall in the first camp. I think it is really important to have a\ndeclarative way to define the states of an object. That\u2019s why I\ndeveloped ``yasm``.\n\nInstall\n-------\n\n.. code:: bash\n\n    pip install yasm\n\nBasic Usage\n-----------\n\n.. code:: python\n\n    from collections import deque\n    import operator\n    import six\n    from string import whitespace, digits\n\n    from yasm import Event, state_machine\n    from yasm.utils import dispatch\n\n\n    @state_machine('calculator')\n    class Calculator(object):\n\n        operators = {\n            '+': operator.add,\n            '-': operator.sub,\n            '*': operator.mul,\n        }\n        if six.PY3:\n            operators['/'] = operator.truediv\n        else:\n            operators['/'] = operator.div\n\n        def __init__(self):\n            self.stack = deque()\n            self.result = None\n\n        def reset(self):\n            self.stack.clear()\n            self.result = None\n            self.machine.reinit_instance(self)\n\n        def calculate(self, string):\n            self.reset()\n            for char in string:\n                dispatch(self, Event('parse', input=char))\n            return self.result\n\n        def start_building_number(self, state, event, instance):\n            digit = event.input\n            self.stack.append(int(digit))\n\n        def build_number(self, state, event, instance):\n            digit = event.input\n            number = str(self.stack.pop())\n            number += digit\n            self.stack.append(int(number))\n\n        def do_operation(self, state, event, instance):\n            operation = event.input\n            y = self.stack.pop()\n            x = self.stack.pop()\n            self.stack.append(self.operators[operation](float(x), float(y)))\n\n        def do_equal(self, state, event, instance):\n            number = self.stack.pop()\n            self.result = number\n\n\n    def is_digit(state, event, instance):\n        return event.input in digits\n\n\n    sm = Calculator.machine\n    sm.add_states(['initial', 'number', 'result'], initial='initial')\n\n    sm.add_transitions([\n        {'from_state': 'initial', 'to_state': 'number', 'event': 'parse',\n         'conditions': [is_digit], 'before': 'start_building_number'},\n        {'from_state': 'number', 'to_state': 'number', 'event': 'parse',\n         'conditions': [is_digit], 'before': 'build_number'},\n        {'from_state': 'number', 'to_state': 'initial', 'event': 'parse',\n         'conditions': [lambda state, evt, ins: evt.input in whitespace]},\n        {'from_state': 'initial', 'to_state': 'initial', 'event': 'parse',\n         'conditions': [lambda state, evt, ins: evt.input in '+-*/'],\n         'before': 'do_operation'},\n        {'from_state': 'initial', 'to_state': 'result', 'event': 'parse',\n         'conditions': [lambda state, evt, ins: evt.input == '='],\n         'before': 'do_equal'},\n    ])\n\n\n     calc = Calculator()\n     for syntax, value in ((' 167 3 2 2 * * * 1 - =', 2003),\n                           ('    167 3 2 2 * * * 1 - 2 / =', 1001.5),\n                           ('    3   5 6 +  * =', 33),\n                           ('        3    4       +     =', 7),\n                           ('2 4 / 5 6 - * =', -0.5),):\n         result = calc.calculate(syntax)\n         assert result == value, (syntax, result, value)\n         calc.reset()\n\n\nThank you\n---------\n\nto `aasm`_ and ruby\u2019s `state\\_machine`_ and jtushman's `jtushman/state\\_machine`_ and\nall other state machines that I loved before\n\n.. _aasm: https://github.com/aasm/aasm\n.. _state\\_machine: https://github.com/pluginaweek/state_machine\n.. _jtushman/state\\_machine: https://github.com/jtushman/state_machine\n\n\n",
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        "docs_url": null,
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        "home_page": "http://github.com/Catstyle/yasm",
        "keywords": "state_machine",
        "license": "MIT",
        "maintainer": "",
        "maintainer_email": "",
        "name": "yasm",
        "package_url": "https://pypi.org/project/yasm/",
        "platform": "",
        "project_url": "https://pypi.org/project/yasm/",
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        "requires_dist": null,
        "requires_python": "",
        "summary": "Python State Machines for Humans",
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