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
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
|
/*
* Copyright (C) 2012-2015 Robin Haberkorn
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __GOTO_H
#define __GOTO_H
#include <glib.h>
#include <glib/gprintf.h>
#include "sciteco.h"
#include "parser.h"
#include "undo.h"
#include "rbtree.h"
namespace SciTECO {
class GotoTable : public RBTree {
class UndoTokenSet : public UndoToken {
GotoTable *table;
gchar *name;
gint pc;
public:
UndoTokenSet(GotoTable *_table, gchar *_name, gint _pc = -1)
: table(_table), name(g_strdup(_name)), pc(_pc) {}
~UndoTokenSet()
{
g_free(name);
}
void
run(void)
{
table->set(name, pc);
#ifdef DEBUG
table->dump();
#endif
}
};
class Label : public RBTree::RBEntry {
public:
gchar *name;
gint pc;
Label(gchar *_name, gint _pc = -1)
: name(g_strdup(_name)), pc(_pc) {}
~Label()
{
g_free(name);
}
int
operator <(RBEntry &l2)
{
return g_strcmp0(name, ((Label &)l2).name);
}
};
/*
* whether to generate UndoTokens (unnecessary in macro invocations)
*/
bool must_undo;
public:
GotoTable(bool _undo = true) : RBTree(), must_undo(_undo) {}
gint remove(gchar *name);
gint find(gchar *name);
gint set(gchar *name, gint pc);
inline void
undo_set(gchar *name, gint pc = -1)
{
if (must_undo)
undo.push(new UndoTokenSet(this, name, pc));
}
#ifdef DEBUG
void dump(void);
#endif
};
namespace Goto {
extern GotoTable *table;
extern gchar *skip_label;
}
/*
* Command states
*/
class StateLabel : public State {
public:
StateLabel();
private:
State *custom(gchar chr);
};
class StateGotoCmd : public StateExpectString {
private:
State *done(const gchar *str);
};
namespace States {
extern StateLabel label;
extern StateGotoCmd gotocmd;
}
} /* namespace SciTECO */
#endif
|
