1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
|
// LogicCommands.hh for FbTk
// Copyright (c) 2007 Fluxbox Team (fluxgen at fluxbox dot org)
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
#ifndef FBTK_LOGICCOMMANDS_HH
#define FBTK_LOGICCOMMANDS_HH
#include "Command.hh"
#include "RefCount.hh"
#include <string>
#include <vector>
namespace FbTk {
/// executes a Command<bool> and uses the result to decide what to do
class IfCommand: public Command<void> {
public:
IfCommand(RefCount<Command<bool> > &cond,
RefCount<Command<void> > &t, RefCount<Command<void> > &f):
m_cond(cond), m_t(t), m_f(f) { }
void execute() {
if (m_cond->execute()) {
if (m_t) m_t->execute();
} else
if (m_f) m_f->execute();
}
static Command<void> *parse(const std::string &cmd, const std::string &args,
bool trusted);
private:
RefCount<Command<bool> > m_cond;
RefCount<Command<void> > m_t, m_f;
};
/// executes a list of Command<bool>s until one is true
class OrCommand: public Command<bool> {
public:
void add(RefCount<Command<bool> > &com);
size_t size() const;
bool execute();
private:
std::vector<RefCount<Command<bool> > > m_commandlist;
};
/// executes a list of Command<bool>s until one is false
class AndCommand: public Command<bool> {
public:
void add(RefCount<Command<bool> > &com);
size_t size() const;
bool execute();
private:
std::vector<RefCount<Command<bool> > > m_commandlist;
};
/// executes a list of Command<bool>s, returning the parity
class XorCommand: public Command<bool> {
public:
void add(RefCount<Command<bool> > &com);
size_t size() const;
bool execute();
private:
std::vector<RefCount<Command<bool> > > m_commandlist;
};
/// executes a Command<bool> and returns the negation
class NotCommand: public Command<bool> {
public:
NotCommand(RefCount<Command<bool> > &com): m_command(com) { }
bool execute() { return !m_command->execute(); }
private:
RefCount<Command<bool> > m_command;
};
} // end namespace FbTk
#endif // FBTK_LOGICCOMMANDS_HH
|
