diff options
Diffstat (limited to 'core/variant/variant_parser.h')
| -rw-r--r-- | core/variant/variant_parser.h | 100 |
1 files changed, 60 insertions, 40 deletions
diff --git a/core/variant/variant_parser.h b/core/variant/variant_parser.h index 56b484c8bc..88be99e551 100644 --- a/core/variant/variant_parser.h +++ b/core/variant/variant_parser.h @@ -1,32 +1,32 @@ -/*************************************************************************/ -/* variant_parser.h */ -/*************************************************************************/ -/* This file is part of: */ -/* GODOT ENGINE */ -/* https://godotengine.org */ -/*************************************************************************/ -/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */ -/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */ -/* */ -/* 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. */ -/*************************************************************************/ +/**************************************************************************/ +/* variant_parser.h */ +/**************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* https://godotengine.org */ +/**************************************************************************/ +/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */ +/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */ +/* */ +/* 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 VARIANT_PARSER_H #define VARIANT_PARSER_H @@ -38,35 +38,55 @@ class VariantParser { public: struct Stream { - virtual char32_t get_char() = 0; - virtual bool is_utf8() const = 0; - virtual bool is_eof() const = 0; - + private: + enum { READAHEAD_SIZE = 2048 }; + char32_t readahead_buffer[READAHEAD_SIZE]; + uint32_t readahead_pointer = 0; + uint32_t readahead_filled = 0; + bool eof = false; + + protected: + bool readahead_enabled = true; + virtual uint32_t _read_buffer(char32_t *p_buffer, uint32_t p_num_chars) = 0; + virtual bool _is_eof() const = 0; + + public: char32_t saved = 0; + char32_t get_char(); + virtual bool is_utf8() const = 0; + bool is_eof() const; + Stream() {} virtual ~Stream() {} }; struct StreamFile : public Stream { + protected: + virtual uint32_t _read_buffer(char32_t *p_buffer, uint32_t p_num_chars) override; + virtual bool _is_eof() const override; + + public: Ref<FileAccess> f; - virtual char32_t get_char() override; virtual bool is_utf8() const override; - virtual bool is_eof() const override; - StreamFile() {} + StreamFile(bool p_readahead_enabled = true) { readahead_enabled = p_readahead_enabled; } }; struct StreamString : public Stream { String s; + + private: int pos = 0; - virtual char32_t get_char() override; - virtual bool is_utf8() const override; - virtual bool is_eof() const override; + protected: + virtual uint32_t _read_buffer(char32_t *p_buffer, uint32_t p_num_chars) override; + virtual bool _is_eof() const override; - StreamString() {} + public: + virtual bool is_utf8() const override; + StreamString(bool p_readahead_enabled = true) { readahead_enabled = p_readahead_enabled; } }; typedef Error (*ParseResourceFunc)(void *p_self, Stream *p_stream, Ref<Resource> &r_res, int &line, String &r_err_str); |