py_ext/py_ext.py
author Laurent Bessard
Mon, 13 May 2013 16:38:53 +0200
changeset 1126 26baa0ae9fd7
parent 1124 b1705000eba1
child 1132 28f96aa9c070
permissions -rw-r--r--
Fixed bug with Copy/Paste in Primary Selection in Text Viewers
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import os
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from POULibrary import POULibrary
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from PythonFileCTNMixin import PythonFileCTNMixin
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class PythonLibrary(POULibrary):
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    def GetLibraryPath(self):
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        return os.path.join(os.path.split(__file__)[0], "pous.xml") 
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    def Generate_C(self, buildpath, varlist, IECCFLAGS):
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        plc_python_filepath = os.path.join(os.path.split(__file__)[0], "plc_python.c")
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        plc_python_file = open(plc_python_filepath, 'r')
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        plc_python_code = plc_python_file.read()
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        plc_python_file.close()
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        python_eval_fb_list = []
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        for v in varlist:
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            if v["vartype"] == "FB" and v["type"] in ["PYTHON_EVAL","PYTHON_POLL"]:
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                python_eval_fb_list.append(v)
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        python_eval_fb_count = max(1, len(python_eval_fb_list))
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        # prepare python code
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        plc_python_code = plc_python_code % { "python_eval_fb_count": python_eval_fb_count }
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        Gen_Pythonfile_path = os.path.join(buildpath, "py_ext.c")
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        pythonfile = open(Gen_Pythonfile_path,'w')
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        pythonfile.write(plc_python_code)
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        pythonfile.close()
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        return (["py_ext"], [(Gen_Pythonfile_path, IECCFLAGS)], True), ""
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class PythonFile(PythonFileCTNMixin):
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    def GetIconName(self):
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        return "Pyfile"
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    def CTNGenerate_C(self, buildpath, locations):
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        current_location = self.GetCurrentLocation()
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        # define a unique name for the generated C file
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        location_str = "_".join(map(lambda x:str(x), current_location))
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        sections_code = self.GetSectionsCode()
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        text = "## Code generated by Beremiz python mixin confnode\n\n"
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        # Adding variables
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        text += "## User variables reference\n"
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        text += sections_code["variables"]
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        text += "\n"
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        # Adding user global variables and routines
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        text += "## User internal user variables and routines\n"
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        text += sections_code["globals"]
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        text += "\n"
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        # Adding Beremiz python runtime functions
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        text += "## Beremiz python runtime functions\n"
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        for section in self.SECTIONS_NAMES:
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            if section != "globals":
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                code_object = getattr(self.CodeFile, section)
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                text += "def _runtime_%s_%s():\n" % (location_str, section)
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                section_code = sections_code.get(section)
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                if section_code:
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                    text += section_code
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                else:
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                    text += "    pass\n\n"
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        runtimefile_path = os.path.join(buildpath, "runtime_%s.py"%location_str)
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        runtimefile = open(runtimefile_path, 'w')
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        runtimefile.write(text)
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        runtimefile.close()
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        return [], "", False, ("runtime_%s.py"%location_str, file(runtimefile_path,"rb"))
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