1 /**
2 python-console
3 Copyright (C) 2014  Alex Tsui
4 
5 Permission is hereby granted, free of charge, to any person obtaining a copy of
6 this software and associated documentation files (the "Software"), to deal in
7 the Software without restriction, including without limitation the rights to
8 use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
9 of the Software, and to permit persons to whom the Software is furnished to do
10 so, subject to the following conditions:
11 
12 The above copyright notice and this permission notice shall be included in all
13 copies or substantial portions of the Software.
14 
15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 SOFTWARE.
22 */
23 
24 #ifndef INTERPRETER_H
25 #define INTERPRETER_H
26 #include <string>
27 #include <list>
28 #include <Python.h>
29 #if defined(__APPLE__) && defined(__MACH__)
30 /*
31  * The following undefs for C standard library macros prevent
32  * build errors of the following type on mac ox 10.7.4 and XCode 4.3.3
33  *
34 /usr/include/c++/4.2.1/bits/localefwd.h:57:21: error: too many arguments provided to function-like macro invocation
35     isspace(_CharT, const locale&);
36                     ^
37 /usr/include/c++/4.2.1/bits/localefwd.h:56:5: error: 'inline' can only appear on functions
38     inline bool
39     ^
40 /usr/include/c++/4.2.1/bits/localefwd.h:57:5: error: variable 'isspace' declared as a template
41     isspace(_CharT, const locale&);
42     ^
43 */
44 #undef isspace
45 #undef isupper
46 #undef islower
47 #undef isalpha
48 #undef isalnum
49 #undef toupper
50 #undef tolower
51 #endif
52 
53 /**
54 Wraps a Python interpreter, which you can pass commands as strings to interpret
55 and get strings of output/error in return.
56 */
57 class Interpreter
58 {
59 protected:
60     static PyThreadState* MainThreadState;
61 
62     PyThreadState* m_threadState;
63     PyObject* glb;
64     PyObject* loc;
65 
66     std::list< std::string > m_suggestions;
67 
68 public:
69     /**
70     Instantiate a Python interpreter.
71     */
72     Interpreter( );
73     virtual ~Interpreter( );
74 
75     void test( );
76         std::string interpret( const std::string& command, int* errorCode );
77     const std::list<std::string>& suggest( const std::string& hint );
78 
79     /**
80     Call this before constructing and using Interpreter.
81     */
82     static void Initialize( );
83 
84     /**
85     Call this when done using Interpreter.
86     */
87     static void Finalize( );
88 
89 protected:
90     static PyObject* PyInit_redirector(void);
91     static PyObject* RedirectorInit(PyObject *, PyObject *);
92     static PyObject* RedirectorWrite(PyObject *, PyObject *args);
93     static std::string& GetResultString( PyThreadState* threadState );
94     static PyMethodDef ModuleMethods[];
95     static PyMethodDef RedirectorMethods[];
96 };
97 #endif // INTERPRETER_H
98