| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| /* $Rev$ $Date$ */ |
| |
| #ifndef tuscany_python_driver_hpp |
| #define tuscany_python_driver_hpp |
| |
| /** |
| * Python evaluator main driver loop. |
| */ |
| |
| #include "string.hpp" |
| #include "stream.hpp" |
| #include "monad.hpp" |
| #include "../scheme/driver.hpp" |
| #include "eval.hpp" |
| |
| namespace tuscany { |
| namespace python { |
| |
| const value evalDriverLoop(PyObject* script, istream& in, ostream& out, PythonRuntime& py) { |
| scheme::promptForInput(scheme::evalInputPrompt, out); |
| value input = scheme::readValue(in); |
| if (isNil(input)) |
| return input; |
| const failable<value> output = evalScript(input, script, py); |
| scheme::announceOutput(scheme::evalOutputPrompt, out); |
| scheme::userPrint(content(output), out); |
| return evalDriverLoop(script, in, out, py); |
| } |
| |
| const bool evalDriverRun(const char* path, istream& in, ostream& out) { |
| PythonRuntime py; |
| scheme::setupDisplay(out); |
| ifstream is(path); |
| failable<PyObject*> script = readScript(moduleName(path), path, is, py); |
| if (!hasContent(script)) |
| return true; |
| evalDriverLoop(content(script), in, out, py); |
| releaseScript(content(script), py); |
| return true; |
| } |
| |
| } |
| } |
| #endif /* tuscany_python_driver_hpp */ |