mirror of
https://github.com/godotengine/godot.git
synced 2024-11-27 09:16:35 +08:00
140 lines
3.3 KiB
C++
140 lines
3.3 KiB
C++
#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
|