d8223ffa75
That year should bring the long-awaited OpenGL ES 3.0 compatible renderer
with state-of-the-art rendering techniques tuned to work as low as middle
end handheld devices - without compromising with the possibilities given
for higher end desktop games of course. Great times ahead for the Godot
community and the gamers that will play our games!
(cherry picked from commit c7bc44d5ad)
168 lines
5.4 KiB
C++
168 lines
5.4 KiB
C++
/*************************************************************************/
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/* variant_parser.h */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* http://www.godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#ifndef VARIANT_PARSER_H
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#define VARIANT_PARSER_H
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#include "variant.h"
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#include "os/file_access.h"
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#include "resource.h"
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class VariantParser {
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public:
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struct Stream {
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virtual CharType get_char()=0;
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virtual bool is_utf8() const=0;
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virtual bool is_eof() const=0;
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CharType saved;
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Stream() { saved=0; }
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virtual ~Stream() {}
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};
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struct StreamFile : public Stream {
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FileAccess *f;
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virtual CharType get_char();
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virtual bool is_utf8() const;
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virtual bool is_eof() const;
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StreamFile() { f=NULL; }
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};
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struct StreamString : public Stream {
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String s;
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int pos;
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virtual CharType get_char();
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virtual bool is_utf8() const;
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virtual bool is_eof() const;
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StreamString() { pos=0; }
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};
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typedef Error (*ParseResourceFunc)(void* p_self, Stream* p_stream,Ref<Resource>& r_res,int &line,String &r_err_str);
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struct ResourceParser {
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void *userdata;
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ParseResourceFunc func;
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ParseResourceFunc ext_func;
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ParseResourceFunc sub_func;
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};
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enum TokenType {
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TK_CURLY_BRACKET_OPEN,
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TK_CURLY_BRACKET_CLOSE,
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TK_BRACKET_OPEN,
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TK_BRACKET_CLOSE,
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TK_PARENTHESIS_OPEN,
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TK_PARENTHESIS_CLOSE,
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TK_IDENTIFIER,
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TK_STRING,
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TK_NUMBER,
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TK_COLOR,
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TK_COLON,
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TK_COMMA,
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TK_PERIOD,
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TK_EQUAL,
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TK_EOF,
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TK_ERROR,
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TK_MAX
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};
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enum Expecting {
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EXPECT_OBJECT,
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EXPECT_OBJECT_KEY,
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EXPECT_COLON,
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EXPECT_OBJECT_VALUE,
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};
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struct Token {
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TokenType type;
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Variant value;
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};
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struct Tag {
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String name;
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Map<String,Variant> fields;
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};
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private:
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static const char * tk_name[TK_MAX];
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template<class T>
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static Error _parse_construct(Stream *p_stream, Vector<T>& r_construct, int &line, String &r_err_str);
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static Error _parse_enginecfg(Stream *p_stream, Vector<String>& strings, int &line, String &r_err_str);
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static Error _parse_dictionary(Dictionary &object, Stream *p_stream, int &line, String &r_err_str,ResourceParser *p_res_parser=NULL);
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static Error _parse_array(Array &array, Stream *p_stream, int &line, String &r_err_str,ResourceParser *p_res_parser=NULL);
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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);
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public:
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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);
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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);
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static Error parse_value(Token& token,Variant &value, Stream *p_stream, int &line, String &r_err_str,ResourceParser *p_res_parser=NULL);
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static Error get_token(Stream *p_stream,Token& r_token,int &line,String &r_err_str);
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static Error parse(Stream *p_stream, Variant &r_ret, String &r_err_str, int &r_err_line,ResourceParser *p_res_parser=NULL);
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};
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class VariantWriter {
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public:
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typedef Error (*StoreStringFunc)(void *ud,const String& p_string);
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typedef String (*EncodeResourceFunc)(void *ud,const RES& p_resource);
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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);
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static Error write_to_string(const Variant& p_variant, String& r_string, EncodeResourceFunc p_encode_res_func=NULL,void* p_encode_res_ud=NULL);
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};
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#endif // VARIANT_PARSER_H
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