Chris@112: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
Chris@112: 
Chris@112: /*
Chris@112:   VampyHost
Chris@112: 
Chris@112:   Use Vamp audio analysis plugins in Python
Chris@112: 
Chris@112:   Gyorgy Fazekas and Chris Cannam
Chris@112:   Centre for Digital Music, Queen Mary, University of London
Chris@117:   Copyright 2008-2015 Queen Mary, University of London
Chris@112:   
Chris@112:   Permission is hereby granted, free of charge, to any person
Chris@112:   obtaining a copy of this software and associated documentation
Chris@112:   files (the "Software"), to deal in the Software without
Chris@112:   restriction, including without limitation the rights to use, copy,
Chris@112:   modify, merge, publish, distribute, sublicense, and/or sell copies
Chris@112:   of the Software, and to permit persons to whom the Software is
Chris@112:   furnished to do so, subject to the following conditions:
Chris@112: 
Chris@112:   The above copyright notice and this permission notice shall be
Chris@112:   included in all copies or substantial portions of the Software.
Chris@112: 
Chris@112:   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
Chris@112:   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
Chris@112:   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
Chris@112:   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
Chris@112:   ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
Chris@112:   CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
Chris@112:   WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Chris@112: 
Chris@112:   Except as contained in this notice, the names of the Centre for
Chris@112:   Digital Music; Queen Mary, University of London; and the authors
Chris@112:   shall not be used in advertising or otherwise to promote the sale,
Chris@112:   use or other dealings in this Software without prior written
Chris@112:   authorization.
Chris@112: */
Chris@112: 
Chris@112: /*
Chris@112:   StringConversion: A couple of type safe conversion utilities between
Chris@112:   Python types and C++ strings.
Chris@112: */
Chris@112: 
Chris@112: #ifndef VAMPYHOST_STRING_CONVERSION_H
Chris@112: #define VAMPYHOST_STRING_CONVERSION_H
Chris@112: 
Chris@112: #include <Python.h>
Chris@112: #include <string>
Chris@112: 
Chris@112: class StringConversion
Chris@112: {
Chris@112: public:
Chris@112:     StringConversion() {}
Chris@112:     ~StringConversion() {}
Chris@112: 
Chris@112:     PyObject *string2py(const std::string &s) {
Chris@112: #if PY_MAJOR_VERSION < 3
Chris@112: 	return PyString_FromString(s.c_str());
Chris@112: #else
Chris@112: 	return PyUnicode_FromString(s.c_str());
Chris@112: #endif
Chris@112:     }
Chris@112: 
Chris@112:     std::string py2string(PyObject *obj) {
Chris@112: #if PY_MAJOR_VERSION < 3
Chris@112: 	char *cstr = PyString_AsString(obj);
Chris@112: 	if (!cstr) return std::string();
Chris@112: 	else return cstr;
Chris@112: #else
Chris@112: 	PyObject *uobj = PyUnicode_AsUTF8String(obj);
Chris@112: 	if (!uobj) return std::string();
Chris@112: 	char *cstr = PyBytes_AsString(uobj);
Chris@112: 	if (!cstr) return std::string();
Chris@112: 	else return cstr;
Chris@112: #endif
Chris@112:     }
Chris@112: };
Chris@112: 
Chris@112: #endif
Chris@112: 
Chris@112: