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75 lines
2.8 KiB
Python
75 lines
2.8 KiB
Python
# The MIT License
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#
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# Copyright 2014, 2015 Piotr Dabkowski
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#
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# Permission is hereby granted, free of charge, to any person obtaining
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# a copy of this software and associated documentation files (the 'Software'),
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# to deal in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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# the Software, and to permit persons to whom the Software is furnished to do so, subject
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# to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in all copies or
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# substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
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# LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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# IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
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# OR THE USE OR OTHER DEALINGS IN THE SOFTWARE
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""" This module allows you to translate and execute Javascript in pure python.
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Basically its implementation of ECMAScript 5.1 in pure python.
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Use eval_js method to execute javascript code and get resulting python object (builtin if possible).
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EXAMPLE:
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>>> import js2py
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>>> add = js2py.eval_js('function add(a, b) {return a + b}')
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>>> add(1, 2) + 3
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6
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>>> add('1', 2, 3)
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u'12'
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>>> add.constructor
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function Function() { [python code] }
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Or use EvalJs to execute many javascript code fragments under same context - you would be able to get any
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variable from the context!
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>>> js = js2py.EvalJs()
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>>> js.execute('var a = 10; function f(x) {return x*x};')
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>>> js.f(9)
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81
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>>> js.a
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10
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Also you can use its console method to play with interactive javascript console.
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Use parse_js to parse (syntax tree is just like in esprima.js) and translate_js to trasnlate JavaScript.
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Finally, you can use pyimport statement from inside JS code to import and use python libraries.
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>>> js2py.eval_js('pyimport urllib; urllib.urlopen("https://www.google.com")')
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NOTE: This module is still not fully finished:
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Date and JSON builtin objects are not implemented
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Array prototype is not fully finished (will be soon)
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Other than that everything should work fine.
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"""
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__author__ = 'Piotr Dabkowski'
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__all__ = [
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'EvalJs', 'translate_js', 'import_js', 'eval_js', 'parse_js',
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'translate_file', 'run_file', 'disable_pyimport', 'eval_js6',
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'translate_js6', 'PyJsException', 'get_file_contents',
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'write_file_contents', 'require'
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]
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from .base import PyJsException
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from .evaljs import *
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from .translators import parse as parse_js
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from .node_import import require
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