virtualx-engine/core/io/xml_parser.h

131 lines
4.4 KiB
C++

/**************************************************************************/
/* xml_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 XML_PARSER_H
#define XML_PARSER_H
#include "core/io/file_access.h"
#include "core/object/ref_counted.h"
#include "core/string/ustring.h"
#include "core/templates/vector.h"
/*
Based on irrXML (see their zlib license). Added mainly for compatibility with their Collada loader.
*/
class XMLParser : public RefCounted {
GDCLASS(XMLParser, RefCounted);
public:
//! Enumeration of all supported source text file formats
enum SourceFormat {
SOURCE_ASCII,
SOURCE_UTF8,
SOURCE_UTF16_BE,
SOURCE_UTF16_LE,
SOURCE_UTF32_BE,
SOURCE_UTF32_LE
};
enum NodeType {
NODE_NONE,
NODE_ELEMENT,
NODE_ELEMENT_END,
NODE_TEXT,
NODE_COMMENT,
NODE_CDATA,
NODE_UNKNOWN
};
private:
char *data_copy = nullptr;
const char *data = nullptr;
const char *P = nullptr;
uint64_t length = 0;
uint64_t current_line = 0;
String node_name;
bool node_empty = false;
NodeType node_type = NODE_NONE;
uint64_t node_offset = 0;
struct Attribute {
String name;
String value;
};
Vector<Attribute> attributes;
bool _set_text(const char *start, const char *end);
void _parse_closing_xml_element();
void _ignore_definition();
bool _parse_cdata();
void _parse_comment();
void _parse_opening_xml_element();
void _parse_current_node();
_FORCE_INLINE_ void next_char() {
if (*P == '\n') {
current_line++;
}
P++;
}
static void _bind_methods();
public:
Error read();
NodeType get_node_type();
String get_node_name() const;
String get_node_data() const;
uint64_t get_node_offset() const;
int get_attribute_count() const;
String get_attribute_name(int p_idx) const;
String get_attribute_value(int p_idx) const;
bool has_attribute(const String &p_name) const;
String get_named_attribute_value(const String &p_name) const;
String get_named_attribute_value_safe(const String &p_name) const; // do not print error if doesn't exist
bool is_empty() const;
int get_current_line() const;
void skip_section();
Error seek(uint64_t p_pos);
Error open(const String &p_path);
Error open_buffer(const Vector<uint8_t> &p_buffer);
Error _open_buffer(const uint8_t *p_buffer, size_t p_size);
void close();
~XMLParser();
};
VARIANT_ENUM_CAST(XMLParser::NodeType);
#endif // XML_PARSER_H