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
129
130
131
132
133
134
135
136
137
138
139
|
#ifndef VARIANT_PARSER_H
#define VARIANT_PARSER_H
#include "variant.h"
#include "os/file_access.h"
#include "resource.h"
class VariantParser {
public:
struct Stream {
virtual CharType get_char()=0;
virtual bool is_utf8() const=0;
virtual bool is_eof() const=0;
CharType saved;
Stream() { saved=0; }
virtual ~Stream() {}
};
struct StreamFile : public Stream {
FileAccess *f;
virtual CharType get_char();
virtual bool is_utf8() const;
virtual bool is_eof() const;
StreamFile() { f=NULL; }
};
struct StreamString : public Stream {
String s;
int pos;
virtual CharType get_char();
virtual bool is_utf8() const;
virtual bool is_eof() const;
StreamString() { pos=0; }
};
typedef Error (*ParseResourceFunc)(void* p_self, Stream* p_stream,Ref<Resource>& r_res,int &line,String &r_err_str);
struct ResourceParser {
void *userdata;
ParseResourceFunc func;
ParseResourceFunc ext_func;
ParseResourceFunc sub_func;
};
enum TokenType {
TK_CURLY_BRACKET_OPEN,
TK_CURLY_BRACKET_CLOSE,
TK_BRACKET_OPEN,
TK_BRACKET_CLOSE,
TK_PARENTHESIS_OPEN,
TK_PARENTHESIS_CLOSE,
TK_IDENTIFIER,
TK_STRING,
TK_NUMBER,
TK_COLOR,
TK_COLON,
TK_COMMA,
TK_PERIOD,
TK_EQUAL,
TK_EOF,
TK_ERROR,
TK_MAX
};
enum Expecting {
EXPECT_OBJECT,
EXPECT_OBJECT_KEY,
EXPECT_COLON,
EXPECT_OBJECT_VALUE,
};
struct Token {
TokenType type;
Variant value;
};
struct Tag {
String name;
Map<String,Variant> fields;
};
private:
static const char * tk_name[TK_MAX];
template<class T>
static Error _parse_construct(Stream *p_stream, Vector<T>& r_construct, int &line, String &r_err_str);
static Error _parse_enginecfg(Stream *p_stream, Vector<String>& strings, int &line, String &r_err_str);
static Error _parse_dictionary(Dictionary &object, Stream *p_stream, int &line, String &r_err_str,ResourceParser *p_res_parser=NULL);
static Error _parse_array(Array &array, Stream *p_stream, int &line, String &r_err_str,ResourceParser *p_res_parser=NULL);
static Error _parse_tag(Token& token,Stream *p_stream, int &line, String &r_err_str,Tag& r_tag,ResourceParser *p_res_parser=NULL,bool p_simple_tag=false);
public:
static Error parse_tag(Stream *p_stream, int &line, String &r_err_str,Tag& r_tag,ResourceParser *p_res_parser=NULL,bool p_simple_tag=false);
static Error parse_tag_assign_eof(Stream *p_stream, int &line, String &r_err_str, Tag& r_tag, String &r_assign, Variant &r_value,ResourceParser *p_res_parser=NULL,bool p_simple_tag=false);
static Error parse_value(Token& token,Variant &value, Stream *p_stream, int &line, String &r_err_str,ResourceParser *p_res_parser=NULL);
static Error get_token(Stream *p_stream,Token& r_token,int &line,String &r_err_str);
static Error parse(Stream *p_stream, Variant &r_ret, String &r_err_str, int &r_err_line,ResourceParser *p_res_parser=NULL);
};
class VariantWriter {
public:
typedef Error (*StoreStringFunc)(void *ud,const String& p_string);
typedef String (*EncodeResourceFunc)(void *ud,const RES& p_resource);
static Error write(const Variant& p_variant, StoreStringFunc p_store_string_func, void *p_store_string_ud,EncodeResourceFunc p_encode_res_func,void* p_encode_res_ud);
static Error write_to_string(const Variant& p_variant, String& r_string, EncodeResourceFunc p_encode_res_func=NULL,void* p_encode_res_ud=NULL);
};
#endif // VARIANT_PARSER_H
|