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
|
// Copyright(c) 2015-2017 YamaArashi
//
// 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 ASM_FILE_H
#define ASM_FILE_H
#include <string>
#include "scaninc.h"
enum class IncDirectiveType
{
None,
Include,
Incbin
};
class AsmFile
{
public:
AsmFile(std::string path);
~AsmFile();
IncDirectiveType ReadUntilIncDirective(std::string& path);
private:
char *m_buffer;
int m_pos;
int m_size;
int m_lineNum;
std::string m_path;
int GetChar()
{
if (m_pos >= m_size)
return -1;
int c = m_buffer[m_pos++];
if (c == '\r')
{
if (m_pos < m_size && m_buffer[m_pos++] == '\n')
{
m_lineNum++;
return '\n';
}
else
{
FATAL_INPUT_ERROR("CR line endings are not supported\n");
}
}
if (c == '\n')
m_lineNum++;
return c;
}
// No newline translation because it's not needed for any use of this function.
int PeekChar()
{
if (m_pos >= m_size)
return -1;
return m_buffer[m_pos];
}
void SkipTabsAndSpaces()
{
while (m_pos < m_size && (m_buffer[m_pos] == '\t' || m_buffer[m_pos] == ' '))
m_pos++;
}
bool MatchIncDirective(std::string directiveName, std::string& path)
{
int length = directiveName.length();
int i;
for (i = 0; i < length && m_pos + i < m_size; i++)
if (directiveName[i] != m_buffer[m_pos + i])
return false;
if (i < length)
return false;
m_pos += length;
SkipTabsAndSpaces();
if (GetChar() != '"')
FATAL_INPUT_ERROR("no path after \".%s\" directive\n", directiveName.c_str());
path = ReadPath();
return true;
}
std::string ReadPath();
void SkipEndOfLineComment();
void SkipMultiLineComment();
void SkipString();
};
#endif // ASM_FILE_H
|
