1507 lines
52 KiB
C++
1507 lines
52 KiB
C++
/**
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* pugixml parser - version 1.13
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* --------------------------------------------------------
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* Copyright (C) 2006-2022, by Arseny Kapoulkine (arseny.kapoulkine@gmail.com)
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* Report bugs and download new versions at https://pugixml.org/
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*
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* This library is distributed under the MIT License. See notice at the end
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* of this file.
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*
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* This work is based on the pugxml parser, which is:
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* Copyright (C) 2003, by Kristen Wegner (kristen@tima.net)
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*/
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// Define version macro; evaluates to major * 1000 + minor * 10 + patch so that it's safe to use in less-than comparisons
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// Note: pugixml used major * 100 + minor * 10 + patch format up until 1.9 (which had version identifier 190); starting from pugixml 1.10, the minor version number is two digits
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#ifndef PUGIXML_VERSION
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# define PUGIXML_VERSION 1130 // 1.13
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#endif
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// Include user configuration file (this can define various configuration macros)
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#include "pugiconfig.hpp"
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#ifndef HEADER_PUGIXML_HPP
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#define HEADER_PUGIXML_HPP
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// Include stddef.h for size_t and ptrdiff_t
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#include <stddef.h>
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// Include exception header for XPath
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#if !defined(PUGIXML_NO_XPATH) && !defined(PUGIXML_NO_EXCEPTIONS)
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# include <exception>
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#endif
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// Include STL headers
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#ifndef PUGIXML_NO_STL
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# include <iterator>
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# include <iosfwd>
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# include <string>
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#endif
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// Macro for deprecated features
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#ifndef PUGIXML_DEPRECATED
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# if defined(__GNUC__)
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# define PUGIXML_DEPRECATED __attribute__((deprecated))
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# elif defined(_MSC_VER) && _MSC_VER >= 1300
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# define PUGIXML_DEPRECATED __declspec(deprecated)
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# else
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# define PUGIXML_DEPRECATED
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# endif
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#endif
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// If no API is defined, assume default
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#ifndef PUGIXML_API
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# define PUGIXML_API
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#endif
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// If no API for classes is defined, assume default
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#ifndef PUGIXML_CLASS
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# define PUGIXML_CLASS PUGIXML_API
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#endif
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// If no API for functions is defined, assume default
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#ifndef PUGIXML_FUNCTION
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# define PUGIXML_FUNCTION PUGIXML_API
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#endif
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// If the platform is known to have long long support, enable long long functions
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#ifndef PUGIXML_HAS_LONG_LONG
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# if __cplusplus >= 201103
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# define PUGIXML_HAS_LONG_LONG
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# elif defined(_MSC_VER) && _MSC_VER >= 1400
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# define PUGIXML_HAS_LONG_LONG
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# endif
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#endif
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// If the platform is known to have move semantics support, compile move ctor/operator implementation
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#ifndef PUGIXML_HAS_MOVE
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# if __cplusplus >= 201103
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# define PUGIXML_HAS_MOVE
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# elif defined(_MSC_VER) && _MSC_VER >= 1600
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# define PUGIXML_HAS_MOVE
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# endif
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#endif
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// If C++ is 2011 or higher, add 'noexcept' specifiers
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#ifndef PUGIXML_NOEXCEPT
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# if __cplusplus >= 201103
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# define PUGIXML_NOEXCEPT noexcept
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# elif defined(_MSC_VER) && _MSC_VER >= 1900
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# define PUGIXML_NOEXCEPT noexcept
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# else
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# define PUGIXML_NOEXCEPT
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# endif
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#endif
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// Some functions can not be noexcept in compact mode
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#ifdef PUGIXML_COMPACT
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# define PUGIXML_NOEXCEPT_IF_NOT_COMPACT
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#else
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# define PUGIXML_NOEXCEPT_IF_NOT_COMPACT PUGIXML_NOEXCEPT
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#endif
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// If C++ is 2011 or higher, add 'override' qualifiers
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#ifndef PUGIXML_OVERRIDE
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# if __cplusplus >= 201103
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# define PUGIXML_OVERRIDE override
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# elif defined(_MSC_VER) && _MSC_VER >= 1700
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# define PUGIXML_OVERRIDE override
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# else
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# define PUGIXML_OVERRIDE
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# endif
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#endif
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// If C++ is 2011 or higher, use 'nullptr'
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#ifndef PUGIXML_NULL
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# if __cplusplus >= 201103
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# define PUGIXML_NULL nullptr
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# elif defined(_MSC_VER) && _MSC_VER >= 1600
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# define PUGIXML_NULL nullptr
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# else
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# define PUGIXML_NULL 0
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# endif
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#endif
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// Character interface macros
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#ifdef PUGIXML_WCHAR_MODE
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# define PUGIXML_TEXT(t) L ## t
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# define PUGIXML_CHAR wchar_t
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#else
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# define PUGIXML_TEXT(t) t
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# define PUGIXML_CHAR char
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#endif
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namespace pugi
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{
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// Character type used for all internal storage and operations; depends on PUGIXML_WCHAR_MODE
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typedef PUGIXML_CHAR char_t;
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#ifndef PUGIXML_NO_STL
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// String type used for operations that work with STL string; depends on PUGIXML_WCHAR_MODE
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typedef std::basic_string<PUGIXML_CHAR, std::char_traits<PUGIXML_CHAR>, std::allocator<PUGIXML_CHAR> > string_t;
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#endif
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}
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// The PugiXML namespace
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namespace pugi
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{
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// Tree node types
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enum xml_node_type
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{
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node_null, // Empty (null) node handle
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node_document, // A document tree's absolute root
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node_element, // Element tag, i.e. '<node/>'
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node_pcdata, // Plain character data, i.e. 'text'
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node_cdata, // Character data, i.e. '<![CDATA[text]]>'
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node_comment, // Comment tag, i.e. '<!-- text -->'
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node_pi, // Processing instruction, i.e. '<?name?>'
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node_declaration, // Document declaration, i.e. '<?xml version="1.0"?>'
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node_doctype // Document type declaration, i.e. '<!DOCTYPE doc>'
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};
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// Parsing options
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// Minimal parsing mode (equivalent to turning all other flags off).
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// Only elements and PCDATA sections are added to the DOM tree, no text conversions are performed.
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const unsigned int parse_minimal = 0x0000;
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// This flag determines if processing instructions (node_pi) are added to the DOM tree. This flag is off by default.
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const unsigned int parse_pi = 0x0001;
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// This flag determines if comments (node_comment) are added to the DOM tree. This flag is off by default.
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const unsigned int parse_comments = 0x0002;
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// This flag determines if CDATA sections (node_cdata) are added to the DOM tree. This flag is on by default.
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const unsigned int parse_cdata = 0x0004;
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// This flag determines if plain character data (node_pcdata) that consist only of whitespace are added to the DOM tree.
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// This flag is off by default; turning it on usually results in slower parsing and more memory consumption.
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const unsigned int parse_ws_pcdata = 0x0008;
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// This flag determines if character and entity references are expanded during parsing. This flag is on by default.
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const unsigned int parse_escapes = 0x0010;
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// This flag determines if EOL characters are normalized (converted to #xA) during parsing. This flag is on by default.
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const unsigned int parse_eol = 0x0020;
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// This flag determines if attribute values are normalized using CDATA normalization rules during parsing. This flag is on by default.
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const unsigned int parse_wconv_attribute = 0x0040;
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// This flag determines if attribute values are normalized using NMTOKENS normalization rules during parsing. This flag is off by default.
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const unsigned int parse_wnorm_attribute = 0x0080;
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// This flag determines if document declaration (node_declaration) is added to the DOM tree. This flag is off by default.
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const unsigned int parse_declaration = 0x0100;
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// This flag determines if document type declaration (node_doctype) is added to the DOM tree. This flag is off by default.
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const unsigned int parse_doctype = 0x0200;
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// This flag determines if plain character data (node_pcdata) that is the only child of the parent node and that consists only
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// of whitespace is added to the DOM tree.
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// This flag is off by default; turning it on may result in slower parsing and more memory consumption.
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const unsigned int parse_ws_pcdata_single = 0x0400;
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// This flag determines if leading and trailing whitespace is to be removed from plain character data. This flag is off by default.
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const unsigned int parse_trim_pcdata = 0x0800;
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// This flag determines if plain character data that does not have a parent node is added to the DOM tree, and if an empty document
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// is a valid document. This flag is off by default.
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const unsigned int parse_fragment = 0x1000;
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// This flag determines if plain character data is be stored in the parent element's value. This significantly changes the structure of
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// the document; this flag is only recommended for parsing documents with many PCDATA nodes in memory-constrained environments.
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// This flag is off by default.
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const unsigned int parse_embed_pcdata = 0x2000;
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// The default parsing mode.
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// Elements, PCDATA and CDATA sections are added to the DOM tree, character/reference entities are expanded,
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// End-of-Line characters are normalized, attribute values are normalized using CDATA normalization rules.
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const unsigned int parse_default = parse_cdata | parse_escapes | parse_wconv_attribute | parse_eol;
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// The full parsing mode.
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// Nodes of all types are added to the DOM tree, character/reference entities are expanded,
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// End-of-Line characters are normalized, attribute values are normalized using CDATA normalization rules.
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const unsigned int parse_full = parse_default | parse_pi | parse_comments | parse_declaration | parse_doctype;
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// These flags determine the encoding of input data for XML document
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enum xml_encoding
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{
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encoding_auto, // Auto-detect input encoding using BOM or < / <? detection; use UTF8 if BOM is not found
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encoding_utf8, // UTF8 encoding
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encoding_utf16_le, // Little-endian UTF16
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encoding_utf16_be, // Big-endian UTF16
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encoding_utf16, // UTF16 with native endianness
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encoding_utf32_le, // Little-endian UTF32
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encoding_utf32_be, // Big-endian UTF32
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encoding_utf32, // UTF32 with native endianness
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encoding_wchar, // The same encoding wchar_t has (either UTF16 or UTF32)
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encoding_latin1
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};
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// Formatting flags
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// Indent the nodes that are written to output stream with as many indentation strings as deep the node is in DOM tree. This flag is on by default.
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const unsigned int format_indent = 0x01;
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// Write encoding-specific BOM to the output stream. This flag is off by default.
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const unsigned int format_write_bom = 0x02;
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// Use raw output mode (no indentation and no line breaks are written). This flag is off by default.
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const unsigned int format_raw = 0x04;
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// Omit default XML declaration even if there is no declaration in the document. This flag is off by default.
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const unsigned int format_no_declaration = 0x08;
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// Don't escape attribute values and PCDATA contents. This flag is off by default.
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const unsigned int format_no_escapes = 0x10;
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// Open file using text mode in xml_document::save_file. This enables special character (i.e. new-line) conversions on some systems. This flag is off by default.
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const unsigned int format_save_file_text = 0x20;
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// Write every attribute on a new line with appropriate indentation. This flag is off by default.
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const unsigned int format_indent_attributes = 0x40;
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// Don't output empty element tags, instead writing an explicit start and end tag even if there are no children. This flag is off by default.
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const unsigned int format_no_empty_element_tags = 0x80;
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// Skip characters belonging to range [0; 32) instead of "&#xNN;" encoding. This flag is off by default.
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const unsigned int format_skip_control_chars = 0x100;
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// Use single quotes ' instead of double quotes " for enclosing attribute values. This flag is off by default.
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const unsigned int format_attribute_single_quote = 0x200;
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// The default set of formatting flags.
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// Nodes are indented depending on their depth in DOM tree, a default declaration is output if document has none.
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const unsigned int format_default = format_indent;
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const int default_double_precision = 17;
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const int default_float_precision = 9;
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// Forward declarations
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struct xml_attribute_struct;
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struct xml_node_struct;
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class xml_node_iterator;
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class xml_attribute_iterator;
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class xml_named_node_iterator;
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class xml_tree_walker;
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struct xml_parse_result;
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class xml_node;
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class xml_text;
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#ifndef PUGIXML_NO_XPATH
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class xpath_node;
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class xpath_node_set;
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class xpath_query;
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class xpath_variable_set;
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#endif
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// Range-based for loop support
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template <typename It> class xml_object_range
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{
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public:
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typedef It const_iterator;
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typedef It iterator;
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xml_object_range(It b, It e): _begin(b), _end(e)
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{
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}
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It begin() const { return _begin; }
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It end() const { return _end; }
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bool empty() const { return _begin == _end; }
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private:
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It _begin, _end;
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};
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// Writer interface for node printing (see xml_node::print)
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class PUGIXML_CLASS xml_writer
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{
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public:
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virtual ~xml_writer() {}
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// Write memory chunk into stream/file/whatever
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virtual void write(const void* data, size_t size) = 0;
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};
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// xml_writer implementation for FILE*
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class PUGIXML_CLASS xml_writer_file: public xml_writer
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{
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public:
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// Construct writer from a FILE* object; void* is used to avoid header dependencies on stdio
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xml_writer_file(void* file);
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virtual void write(const void* data, size_t size) PUGIXML_OVERRIDE;
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private:
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void* file;
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};
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#ifndef PUGIXML_NO_STL
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// xml_writer implementation for streams
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class PUGIXML_CLASS xml_writer_stream: public xml_writer
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{
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public:
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// Construct writer from an output stream object
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xml_writer_stream(std::basic_ostream<char, std::char_traits<char> >& stream);
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xml_writer_stream(std::basic_ostream<wchar_t, std::char_traits<wchar_t> >& stream);
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virtual void write(const void* data, size_t size) PUGIXML_OVERRIDE;
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private:
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std::basic_ostream<char, std::char_traits<char> >* narrow_stream;
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std::basic_ostream<wchar_t, std::char_traits<wchar_t> >* wide_stream;
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};
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#endif
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// A light-weight handle for manipulating attributes in DOM tree
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class PUGIXML_CLASS xml_attribute
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{
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friend class xml_attribute_iterator;
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friend class xml_node;
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private:
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xml_attribute_struct* _attr;
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typedef void (*unspecified_bool_type)(xml_attribute***);
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public:
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// Default constructor. Constructs an empty attribute.
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xml_attribute();
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// Constructs attribute from internal pointer
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explicit xml_attribute(xml_attribute_struct* attr);
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// Safe bool conversion operator
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operator unspecified_bool_type() const;
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// Borland C++ workaround
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bool operator!() const;
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// Comparison operators (compares wrapped attribute pointers)
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bool operator==(const xml_attribute& r) const;
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bool operator!=(const xml_attribute& r) const;
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bool operator<(const xml_attribute& r) const;
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bool operator>(const xml_attribute& r) const;
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bool operator<=(const xml_attribute& r) const;
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bool operator>=(const xml_attribute& r) const;
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// Check if attribute is empty
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bool empty() const;
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// Get attribute name/value, or "" if attribute is empty
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const char_t* name() const;
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const char_t* value() const;
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// Get attribute value, or the default value if attribute is empty
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const char_t* as_string(const char_t* def = PUGIXML_TEXT("")) const;
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// Get attribute value as a number, or the default value if conversion did not succeed or attribute is empty
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int as_int(int def = 0) const;
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unsigned int as_uint(unsigned int def = 0) const;
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double as_double(double def = 0) const;
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float as_float(float def = 0) const;
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#ifdef PUGIXML_HAS_LONG_LONG
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long long as_llong(long long def = 0) const;
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unsigned long long as_ullong(unsigned long long def = 0) const;
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#endif
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// Get attribute value as bool (returns true if first character is in '1tTyY' set), or the default value if attribute is empty
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bool as_bool(bool def = false) const;
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// Set attribute name/value (returns false if attribute is empty or there is not enough memory)
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bool set_name(const char_t* rhs);
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bool set_value(const char_t* rhs, size_t sz);
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bool set_value(const char_t* rhs);
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// Set attribute value with type conversion (numbers are converted to strings, boolean is converted to "true"/"false")
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bool set_value(int rhs);
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bool set_value(unsigned int rhs);
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bool set_value(long rhs);
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bool set_value(unsigned long rhs);
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bool set_value(double rhs);
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bool set_value(double rhs, int precision);
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bool set_value(float rhs);
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bool set_value(float rhs, int precision);
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bool set_value(bool rhs);
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#ifdef PUGIXML_HAS_LONG_LONG
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bool set_value(long long rhs);
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bool set_value(unsigned long long rhs);
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#endif
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// Set attribute value (equivalent to set_value without error checking)
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xml_attribute& operator=(const char_t* rhs);
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xml_attribute& operator=(int rhs);
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xml_attribute& operator=(unsigned int rhs);
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xml_attribute& operator=(long rhs);
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xml_attribute& operator=(unsigned long rhs);
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xml_attribute& operator=(double rhs);
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xml_attribute& operator=(float rhs);
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xml_attribute& operator=(bool rhs);
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#ifdef PUGIXML_HAS_LONG_LONG
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xml_attribute& operator=(long long rhs);
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xml_attribute& operator=(unsigned long long rhs);
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#endif
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// Get next/previous attribute in the attribute list of the parent node
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xml_attribute next_attribute() const;
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xml_attribute previous_attribute() const;
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// Get hash value (unique for handles to the same object)
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size_t hash_value() const;
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// Get internal pointer
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xml_attribute_struct* internal_object() const;
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};
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#ifdef __BORLANDC__
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// Borland C++ workaround
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bool PUGIXML_FUNCTION operator&&(const xml_attribute& lhs, bool rhs);
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bool PUGIXML_FUNCTION operator||(const xml_attribute& lhs, bool rhs);
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#endif
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// A light-weight handle for manipulating nodes in DOM tree
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class PUGIXML_CLASS xml_node
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{
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friend class xml_attribute_iterator;
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friend class xml_node_iterator;
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friend class xml_named_node_iterator;
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protected:
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xml_node_struct* _root;
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typedef void (*unspecified_bool_type)(xml_node***);
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public:
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// Default constructor. Constructs an empty node.
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xml_node();
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// Constructs node from internal pointer
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explicit xml_node(xml_node_struct* p);
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// Safe bool conversion operator
|
|
operator unspecified_bool_type() const;
|
|
|
|
// Borland C++ workaround
|
|
bool operator!() const;
|
|
|
|
// Comparison operators (compares wrapped node pointers)
|
|
bool operator==(const xml_node& r) const;
|
|
bool operator!=(const xml_node& r) const;
|
|
bool operator<(const xml_node& r) const;
|
|
bool operator>(const xml_node& r) const;
|
|
bool operator<=(const xml_node& r) const;
|
|
bool operator>=(const xml_node& r) const;
|
|
|
|
// Check if node is empty.
|
|
bool empty() const;
|
|
|
|
// Get node type
|
|
xml_node_type type() const;
|
|
|
|
// Get node name, or "" if node is empty or it has no name
|
|
const char_t* name() const;
|
|
|
|
// Get node value, or "" if node is empty or it has no value
|
|
// Note: For <node>text</node> node.value() does not return "text"! Use child_value() or text() methods to access text inside nodes.
|
|
const char_t* value() const;
|
|
|
|
// Get attribute list
|
|
xml_attribute first_attribute() const;
|
|
xml_attribute last_attribute() const;
|
|
|
|
// Get children list
|
|
xml_node first_child() const;
|
|
xml_node last_child() const;
|
|
|
|
// Get next/previous sibling in the children list of the parent node
|
|
xml_node next_sibling() const;
|
|
xml_node previous_sibling() const;
|
|
|
|
// Get parent node
|
|
xml_node parent() const;
|
|
|
|
// Get root of DOM tree this node belongs to
|
|
xml_node root() const;
|
|
|
|
// Get text object for the current node
|
|
xml_text text() const;
|
|
|
|
// Get child, attribute or next/previous sibling with the specified name
|
|
xml_node child(const char_t* name) const;
|
|
xml_attribute attribute(const char_t* name) const;
|
|
xml_node next_sibling(const char_t* name) const;
|
|
xml_node previous_sibling(const char_t* name) const;
|
|
|
|
// Get attribute, starting the search from a hint (and updating hint so that searching for a sequence of attributes is fast)
|
|
xml_attribute attribute(const char_t* name, xml_attribute& hint) const;
|
|
|
|
// Get child value of current node; that is, value of the first child node of type PCDATA/CDATA
|
|
const char_t* child_value() const;
|
|
|
|
// Get child value of child with specified name. Equivalent to child(name).child_value().
|
|
const char_t* child_value(const char_t* name) const;
|
|
|
|
// Set node name/value (returns false if node is empty, there is not enough memory, or node can not have name/value)
|
|
bool set_name(const char_t* rhs);
|
|
bool set_value(const char_t* rhs, size_t sz);
|
|
bool set_value(const char_t* rhs);
|
|
|
|
// Add attribute with specified name. Returns added attribute, or empty attribute on errors.
|
|
xml_attribute append_attribute(const char_t* name);
|
|
xml_attribute prepend_attribute(const char_t* name);
|
|
xml_attribute insert_attribute_after(const char_t* name, const xml_attribute& attr);
|
|
xml_attribute insert_attribute_before(const char_t* name, const xml_attribute& attr);
|
|
|
|
// Add a copy of the specified attribute. Returns added attribute, or empty attribute on errors.
|
|
xml_attribute append_copy(const xml_attribute& proto);
|
|
xml_attribute prepend_copy(const xml_attribute& proto);
|
|
xml_attribute insert_copy_after(const xml_attribute& proto, const xml_attribute& attr);
|
|
xml_attribute insert_copy_before(const xml_attribute& proto, const xml_attribute& attr);
|
|
|
|
// Add child node with specified type. Returns added node, or empty node on errors.
|
|
xml_node append_child(xml_node_type type = node_element);
|
|
xml_node prepend_child(xml_node_type type = node_element);
|
|
xml_node insert_child_after(xml_node_type type, const xml_node& node);
|
|
xml_node insert_child_before(xml_node_type type, const xml_node& node);
|
|
|
|
// Add child element with specified name. Returns added node, or empty node on errors.
|
|
xml_node append_child(const char_t* name);
|
|
xml_node prepend_child(const char_t* name);
|
|
xml_node insert_child_after(const char_t* name, const xml_node& node);
|
|
xml_node insert_child_before(const char_t* name, const xml_node& node);
|
|
|
|
// Add a copy of the specified node as a child. Returns added node, or empty node on errors.
|
|
xml_node append_copy(const xml_node& proto);
|
|
xml_node prepend_copy(const xml_node& proto);
|
|
xml_node insert_copy_after(const xml_node& proto, const xml_node& node);
|
|
xml_node insert_copy_before(const xml_node& proto, const xml_node& node);
|
|
|
|
// Move the specified node to become a child of this node. Returns moved node, or empty node on errors.
|
|
xml_node append_move(const xml_node& moved);
|
|
xml_node prepend_move(const xml_node& moved);
|
|
xml_node insert_move_after(const xml_node& moved, const xml_node& node);
|
|
xml_node insert_move_before(const xml_node& moved, const xml_node& node);
|
|
|
|
// Remove specified attribute
|
|
bool remove_attribute(const xml_attribute& a);
|
|
bool remove_attribute(const char_t* name);
|
|
|
|
// Remove all attributes
|
|
bool remove_attributes();
|
|
|
|
// Remove specified child
|
|
bool remove_child(const xml_node& n);
|
|
bool remove_child(const char_t* name);
|
|
|
|
// Remove all children
|
|
bool remove_children();
|
|
|
|
// Parses buffer as an XML document fragment and appends all nodes as children of the current node.
|
|
// Copies/converts the buffer, so it may be deleted or changed after the function returns.
|
|
// Note: append_buffer allocates memory that has the lifetime of the owning document; removing the appended nodes does not immediately reclaim that memory.
|
|
xml_parse_result append_buffer(const void* contents, size_t size, unsigned int options = parse_default, xml_encoding encoding = encoding_auto);
|
|
|
|
// Find attribute using predicate. Returns first attribute for which predicate returned true.
|
|
template <typename Predicate> xml_attribute find_attribute(Predicate pred) const
|
|
{
|
|
if (!_root) return xml_attribute();
|
|
|
|
for (xml_attribute attrib = first_attribute(); attrib; attrib = attrib.next_attribute())
|
|
if (pred(attrib))
|
|
return attrib;
|
|
|
|
return xml_attribute();
|
|
}
|
|
|
|
// Find child node using predicate. Returns first child for which predicate returned true.
|
|
template <typename Predicate> xml_node find_child(Predicate pred) const
|
|
{
|
|
if (!_root) return xml_node();
|
|
|
|
for (xml_node node = first_child(); node; node = node.next_sibling())
|
|
if (pred(node))
|
|
return node;
|
|
|
|
return xml_node();
|
|
}
|
|
|
|
// Find node from subtree using predicate. Returns first node from subtree (depth-first), for which predicate returned true.
|
|
template <typename Predicate> xml_node find_node(Predicate pred) const
|
|
{
|
|
if (!_root) return xml_node();
|
|
|
|
xml_node cur = first_child();
|
|
|
|
while (cur._root && cur._root != _root)
|
|
{
|
|
if (pred(cur)) return cur;
|
|
|
|
if (cur.first_child()) cur = cur.first_child();
|
|
else if (cur.next_sibling()) cur = cur.next_sibling();
|
|
else
|
|
{
|
|
while (!cur.next_sibling() && cur._root != _root) cur = cur.parent();
|
|
|
|
if (cur._root != _root) cur = cur.next_sibling();
|
|
}
|
|
}
|
|
|
|
return xml_node();
|
|
}
|
|
|
|
// Find child node by attribute name/value
|
|
xml_node find_child_by_attribute(const char_t* name, const char_t* attr_name, const char_t* attr_value) const;
|
|
xml_node find_child_by_attribute(const char_t* attr_name, const char_t* attr_value) const;
|
|
|
|
#ifndef PUGIXML_NO_STL
|
|
// Get the absolute node path from root as a text string.
|
|
string_t path(char_t delimiter = '/') const;
|
|
#endif
|
|
|
|
// Search for a node by path consisting of node names and . or .. elements.
|
|
xml_node first_element_by_path(const char_t* path, char_t delimiter = '/') const;
|
|
|
|
// Recursively traverse subtree with xml_tree_walker
|
|
bool traverse(xml_tree_walker& walker);
|
|
|
|
#ifndef PUGIXML_NO_XPATH
|
|
// Select single node by evaluating XPath query. Returns first node from the resulting node set.
|
|
xpath_node select_node(const char_t* query, xpath_variable_set* variables = PUGIXML_NULL) const;
|
|
xpath_node select_node(const xpath_query& query) const;
|
|
|
|
// Select node set by evaluating XPath query
|
|
xpath_node_set select_nodes(const char_t* query, xpath_variable_set* variables = PUGIXML_NULL) const;
|
|
xpath_node_set select_nodes(const xpath_query& query) const;
|
|
|
|
// (deprecated: use select_node instead) Select single node by evaluating XPath query.
|
|
PUGIXML_DEPRECATED xpath_node select_single_node(const char_t* query, xpath_variable_set* variables = PUGIXML_NULL) const;
|
|
PUGIXML_DEPRECATED xpath_node select_single_node(const xpath_query& query) const;
|
|
|
|
#endif
|
|
|
|
// Print subtree using a writer object
|
|
void print(xml_writer& writer, const char_t* indent = PUGIXML_TEXT("\t"), unsigned int flags = format_default, xml_encoding encoding = encoding_auto, unsigned int depth = 0) const;
|
|
|
|
#ifndef PUGIXML_NO_STL
|
|
// Print subtree to stream
|
|
void print(std::basic_ostream<char, std::char_traits<char> >& os, const char_t* indent = PUGIXML_TEXT("\t"), unsigned int flags = format_default, xml_encoding encoding = encoding_auto, unsigned int depth = 0) const;
|
|
void print(std::basic_ostream<wchar_t, std::char_traits<wchar_t> >& os, const char_t* indent = PUGIXML_TEXT("\t"), unsigned int flags = format_default, unsigned int depth = 0) const;
|
|
#endif
|
|
|
|
// Child nodes iterators
|
|
typedef xml_node_iterator iterator;
|
|
|
|
iterator begin() const;
|
|
iterator end() const;
|
|
|
|
// Attribute iterators
|
|
typedef xml_attribute_iterator attribute_iterator;
|
|
|
|
attribute_iterator attributes_begin() const;
|
|
attribute_iterator attributes_end() const;
|
|
|
|
// Range-based for support
|
|
xml_object_range<xml_node_iterator> children() const;
|
|
xml_object_range<xml_named_node_iterator> children(const char_t* name) const;
|
|
xml_object_range<xml_attribute_iterator> attributes() const;
|
|
|
|
// Get node offset in parsed file/string (in char_t units) for debugging purposes
|
|
ptrdiff_t offset_debug() const;
|
|
|
|
// Get hash value (unique for handles to the same object)
|
|
size_t hash_value() const;
|
|
|
|
// Get internal pointer
|
|
xml_node_struct* internal_object() const;
|
|
};
|
|
|
|
#ifdef __BORLANDC__
|
|
// Borland C++ workaround
|
|
bool PUGIXML_FUNCTION operator&&(const xml_node& lhs, bool rhs);
|
|
bool PUGIXML_FUNCTION operator||(const xml_node& lhs, bool rhs);
|
|
#endif
|
|
|
|
// A helper for working with text inside PCDATA nodes
|
|
class PUGIXML_CLASS xml_text
|
|
{
|
|
friend class xml_node;
|
|
|
|
xml_node_struct* _root;
|
|
|
|
typedef void (*unspecified_bool_type)(xml_text***);
|
|
|
|
explicit xml_text(xml_node_struct* root);
|
|
|
|
xml_node_struct* _data_new();
|
|
xml_node_struct* _data() const;
|
|
|
|
public:
|
|
// Default constructor. Constructs an empty object.
|
|
xml_text();
|
|
|
|
// Safe bool conversion operator
|
|
operator unspecified_bool_type() const;
|
|
|
|
// Borland C++ workaround
|
|
bool operator!() const;
|
|
|
|
// Check if text object is empty
|
|
bool empty() const;
|
|
|
|
// Get text, or "" if object is empty
|
|
const char_t* get() const;
|
|
|
|
// Get text, or the default value if object is empty
|
|
const char_t* as_string(const char_t* def = PUGIXML_TEXT("")) const;
|
|
|
|
// Get text as a number, or the default value if conversion did not succeed or object is empty
|
|
int as_int(int def = 0) const;
|
|
unsigned int as_uint(unsigned int def = 0) const;
|
|
double as_double(double def = 0) const;
|
|
float as_float(float def = 0) const;
|
|
|
|
#ifdef PUGIXML_HAS_LONG_LONG
|
|
long long as_llong(long long def = 0) const;
|
|
unsigned long long as_ullong(unsigned long long def = 0) const;
|
|
#endif
|
|
|
|
// Get text as bool (returns true if first character is in '1tTyY' set), or the default value if object is empty
|
|
bool as_bool(bool def = false) const;
|
|
|
|
// Set text (returns false if object is empty or there is not enough memory)
|
|
bool set(const char_t* rhs, size_t sz);
|
|
bool set(const char_t* rhs);
|
|
|
|
// Set text with type conversion (numbers are converted to strings, boolean is converted to "true"/"false")
|
|
bool set(int rhs);
|
|
bool set(unsigned int rhs);
|
|
bool set(long rhs);
|
|
bool set(unsigned long rhs);
|
|
bool set(double rhs);
|
|
bool set(double rhs, int precision);
|
|
bool set(float rhs);
|
|
bool set(float rhs, int precision);
|
|
bool set(bool rhs);
|
|
|
|
#ifdef PUGIXML_HAS_LONG_LONG
|
|
bool set(long long rhs);
|
|
bool set(unsigned long long rhs);
|
|
#endif
|
|
|
|
// Set text (equivalent to set without error checking)
|
|
xml_text& operator=(const char_t* rhs);
|
|
xml_text& operator=(int rhs);
|
|
xml_text& operator=(unsigned int rhs);
|
|
xml_text& operator=(long rhs);
|
|
xml_text& operator=(unsigned long rhs);
|
|
xml_text& operator=(double rhs);
|
|
xml_text& operator=(float rhs);
|
|
xml_text& operator=(bool rhs);
|
|
|
|
#ifdef PUGIXML_HAS_LONG_LONG
|
|
xml_text& operator=(long long rhs);
|
|
xml_text& operator=(unsigned long long rhs);
|
|
#endif
|
|
|
|
// Get the data node (node_pcdata or node_cdata) for this object
|
|
xml_node data() const;
|
|
};
|
|
|
|
#ifdef __BORLANDC__
|
|
// Borland C++ workaround
|
|
bool PUGIXML_FUNCTION operator&&(const xml_text& lhs, bool rhs);
|
|
bool PUGIXML_FUNCTION operator||(const xml_text& lhs, bool rhs);
|
|
#endif
|
|
|
|
// Child node iterator (a bidirectional iterator over a collection of xml_node)
|
|
class PUGIXML_CLASS xml_node_iterator
|
|
{
|
|
friend class xml_node;
|
|
|
|
private:
|
|
mutable xml_node _wrap;
|
|
xml_node _parent;
|
|
|
|
xml_node_iterator(xml_node_struct* ref, xml_node_struct* parent);
|
|
|
|
public:
|
|
// Iterator traits
|
|
typedef ptrdiff_t difference_type;
|
|
typedef xml_node value_type;
|
|
typedef xml_node* pointer;
|
|
typedef xml_node& reference;
|
|
|
|
#ifndef PUGIXML_NO_STL
|
|
typedef std::bidirectional_iterator_tag iterator_category;
|
|
#endif
|
|
|
|
// Default constructor
|
|
xml_node_iterator();
|
|
|
|
// Construct an iterator which points to the specified node
|
|
xml_node_iterator(const xml_node& node);
|
|
|
|
// Iterator operators
|
|
bool operator==(const xml_node_iterator& rhs) const;
|
|
bool operator!=(const xml_node_iterator& rhs) const;
|
|
|
|
xml_node& operator*() const;
|
|
xml_node* operator->() const;
|
|
|
|
xml_node_iterator& operator++();
|
|
xml_node_iterator operator++(int);
|
|
|
|
xml_node_iterator& operator--();
|
|
xml_node_iterator operator--(int);
|
|
};
|
|
|
|
// Attribute iterator (a bidirectional iterator over a collection of xml_attribute)
|
|
class PUGIXML_CLASS xml_attribute_iterator
|
|
{
|
|
friend class xml_node;
|
|
|
|
private:
|
|
mutable xml_attribute _wrap;
|
|
xml_node _parent;
|
|
|
|
xml_attribute_iterator(xml_attribute_struct* ref, xml_node_struct* parent);
|
|
|
|
public:
|
|
// Iterator traits
|
|
typedef ptrdiff_t difference_type;
|
|
typedef xml_attribute value_type;
|
|
typedef xml_attribute* pointer;
|
|
typedef xml_attribute& reference;
|
|
|
|
#ifndef PUGIXML_NO_STL
|
|
typedef std::bidirectional_iterator_tag iterator_category;
|
|
#endif
|
|
|
|
// Default constructor
|
|
xml_attribute_iterator();
|
|
|
|
// Construct an iterator which points to the specified attribute
|
|
xml_attribute_iterator(const xml_attribute& attr, const xml_node& parent);
|
|
|
|
// Iterator operators
|
|
bool operator==(const xml_attribute_iterator& rhs) const;
|
|
bool operator!=(const xml_attribute_iterator& rhs) const;
|
|
|
|
xml_attribute& operator*() const;
|
|
xml_attribute* operator->() const;
|
|
|
|
xml_attribute_iterator& operator++();
|
|
xml_attribute_iterator operator++(int);
|
|
|
|
xml_attribute_iterator& operator--();
|
|
xml_attribute_iterator operator--(int);
|
|
};
|
|
|
|
// Named node range helper
|
|
class PUGIXML_CLASS xml_named_node_iterator
|
|
{
|
|
friend class xml_node;
|
|
|
|
public:
|
|
// Iterator traits
|
|
typedef ptrdiff_t difference_type;
|
|
typedef xml_node value_type;
|
|
typedef xml_node* pointer;
|
|
typedef xml_node& reference;
|
|
|
|
#ifndef PUGIXML_NO_STL
|
|
typedef std::bidirectional_iterator_tag iterator_category;
|
|
#endif
|
|
|
|
// Default constructor
|
|
xml_named_node_iterator();
|
|
|
|
// Construct an iterator which points to the specified node
|
|
xml_named_node_iterator(const xml_node& node, const char_t* name);
|
|
|
|
// Iterator operators
|
|
bool operator==(const xml_named_node_iterator& rhs) const;
|
|
bool operator!=(const xml_named_node_iterator& rhs) const;
|
|
|
|
xml_node& operator*() const;
|
|
xml_node* operator->() const;
|
|
|
|
xml_named_node_iterator& operator++();
|
|
xml_named_node_iterator operator++(int);
|
|
|
|
xml_named_node_iterator& operator--();
|
|
xml_named_node_iterator operator--(int);
|
|
|
|
private:
|
|
mutable xml_node _wrap;
|
|
xml_node _parent;
|
|
const char_t* _name;
|
|
|
|
xml_named_node_iterator(xml_node_struct* ref, xml_node_struct* parent, const char_t* name);
|
|
};
|
|
|
|
// Abstract tree walker class (see xml_node::traverse)
|
|
class PUGIXML_CLASS xml_tree_walker
|
|
{
|
|
friend class xml_node;
|
|
|
|
private:
|
|
int _depth;
|
|
|
|
protected:
|
|
// Get current traversal depth
|
|
int depth() const;
|
|
|
|
public:
|
|
xml_tree_walker();
|
|
virtual ~xml_tree_walker();
|
|
|
|
// Callback that is called when traversal begins
|
|
virtual bool begin(xml_node& node);
|
|
|
|
// Callback that is called for each node traversed
|
|
virtual bool for_each(xml_node& node) = 0;
|
|
|
|
// Callback that is called when traversal ends
|
|
virtual bool end(xml_node& node);
|
|
};
|
|
|
|
// Parsing status, returned as part of xml_parse_result object
|
|
enum xml_parse_status
|
|
{
|
|
status_ok = 0, // No error
|
|
|
|
status_file_not_found, // File was not found during load_file()
|
|
status_io_error, // Error reading from file/stream
|
|
status_out_of_memory, // Could not allocate memory
|
|
status_internal_error, // Internal error occurred
|
|
|
|
status_unrecognized_tag, // Parser could not determine tag type
|
|
|
|
status_bad_pi, // Parsing error occurred while parsing document declaration/processing instruction
|
|
status_bad_comment, // Parsing error occurred while parsing comment
|
|
status_bad_cdata, // Parsing error occurred while parsing CDATA section
|
|
status_bad_doctype, // Parsing error occurred while parsing document type declaration
|
|
status_bad_pcdata, // Parsing error occurred while parsing PCDATA section
|
|
status_bad_start_element, // Parsing error occurred while parsing start element tag
|
|
status_bad_attribute, // Parsing error occurred while parsing element attribute
|
|
status_bad_end_element, // Parsing error occurred while parsing end element tag
|
|
status_end_element_mismatch,// There was a mismatch of start-end tags (closing tag had incorrect name, some tag was not closed or there was an excessive closing tag)
|
|
|
|
status_append_invalid_root, // Unable to append nodes since root type is not node_element or node_document (exclusive to xml_node::append_buffer)
|
|
|
|
status_no_document_element // Parsing resulted in a document without element nodes
|
|
};
|
|
|
|
// Parsing result
|
|
struct PUGIXML_CLASS xml_parse_result
|
|
{
|
|
// Parsing status (see xml_parse_status)
|
|
xml_parse_status status;
|
|
|
|
// Last parsed offset (in char_t units from start of input data)
|
|
ptrdiff_t offset;
|
|
|
|
// Source document encoding
|
|
xml_encoding encoding;
|
|
|
|
// Default constructor, initializes object to failed state
|
|
xml_parse_result();
|
|
|
|
// Cast to bool operator
|
|
operator bool() const;
|
|
|
|
// Get error description
|
|
const char* description() const;
|
|
};
|
|
|
|
// Document class (DOM tree root)
|
|
class PUGIXML_CLASS xml_document: public xml_node
|
|
{
|
|
private:
|
|
char_t* _buffer;
|
|
|
|
char _memory[192];
|
|
|
|
// Non-copyable semantics
|
|
xml_document(const xml_document&);
|
|
xml_document& operator=(const xml_document&);
|
|
|
|
void _create();
|
|
void _destroy();
|
|
void _move(xml_document& rhs) PUGIXML_NOEXCEPT_IF_NOT_COMPACT;
|
|
|
|
public:
|
|
// Default constructor, makes empty document
|
|
xml_document();
|
|
|
|
// Destructor, invalidates all node/attribute handles to this document
|
|
~xml_document();
|
|
|
|
#ifdef PUGIXML_HAS_MOVE
|
|
// Move semantics support
|
|
xml_document(xml_document&& rhs) PUGIXML_NOEXCEPT_IF_NOT_COMPACT;
|
|
xml_document& operator=(xml_document&& rhs) PUGIXML_NOEXCEPT_IF_NOT_COMPACT;
|
|
#endif
|
|
|
|
// Removes all nodes, leaving the empty document
|
|
void reset();
|
|
|
|
// Removes all nodes, then copies the entire contents of the specified document
|
|
void reset(const xml_document& proto);
|
|
|
|
#ifndef PUGIXML_NO_STL
|
|
// Load document from stream.
|
|
xml_parse_result load(std::basic_istream<char, std::char_traits<char> >& stream, unsigned int options = parse_default, xml_encoding encoding = encoding_auto);
|
|
xml_parse_result load(std::basic_istream<wchar_t, std::char_traits<wchar_t> >& stream, unsigned int options = parse_default);
|
|
#endif
|
|
|
|
// (deprecated: use load_string instead) Load document from zero-terminated string. No encoding conversions are applied.
|
|
PUGIXML_DEPRECATED xml_parse_result load(const char_t* contents, unsigned int options = parse_default);
|
|
|
|
// Load document from zero-terminated string. No encoding conversions are applied.
|
|
xml_parse_result load_string(const char_t* contents, unsigned int options = parse_default);
|
|
|
|
// Load document from file
|
|
xml_parse_result load_file(const char* path, unsigned int options = parse_default, xml_encoding encoding = encoding_auto);
|
|
xml_parse_result load_file(const wchar_t* path, unsigned int options = parse_default, xml_encoding encoding = encoding_auto);
|
|
|
|
// Load document from buffer. Copies/converts the buffer, so it may be deleted or changed after the function returns.
|
|
xml_parse_result load_buffer(const void* contents, size_t size, unsigned int options = parse_default, xml_encoding encoding = encoding_auto);
|
|
|
|
// Load document from buffer, using the buffer for in-place parsing (the buffer is modified and used for storage of document data).
|
|
// You should ensure that buffer data will persist throughout the document's lifetime, and free the buffer memory manually once document is destroyed.
|
|
xml_parse_result load_buffer_inplace(void* contents, size_t size, unsigned int options = parse_default, xml_encoding encoding = encoding_auto);
|
|
|
|
// Load document from buffer, using the buffer for in-place parsing (the buffer is modified and used for storage of document data).
|
|
// You should allocate the buffer with pugixml allocation function; document will free the buffer when it is no longer needed (you can't use it anymore).
|
|
xml_parse_result load_buffer_inplace_own(void* contents, size_t size, unsigned int options = parse_default, xml_encoding encoding = encoding_auto);
|
|
|
|
// Save XML document to writer (semantics is slightly different from xml_node::print, see documentation for details).
|
|
void save(xml_writer& writer, const char_t* indent = PUGIXML_TEXT("\t"), unsigned int flags = format_default, xml_encoding encoding = encoding_auto) const;
|
|
|
|
#ifndef PUGIXML_NO_STL
|
|
// Save XML document to stream (semantics is slightly different from xml_node::print, see documentation for details).
|
|
void save(std::basic_ostream<char, std::char_traits<char> >& stream, const char_t* indent = PUGIXML_TEXT("\t"), unsigned int flags = format_default, xml_encoding encoding = encoding_auto) const;
|
|
void save(std::basic_ostream<wchar_t, std::char_traits<wchar_t> >& stream, const char_t* indent = PUGIXML_TEXT("\t"), unsigned int flags = format_default) const;
|
|
#endif
|
|
|
|
// Save XML to file
|
|
bool save_file(const char* path, const char_t* indent = PUGIXML_TEXT("\t"), unsigned int flags = format_default, xml_encoding encoding = encoding_auto) const;
|
|
bool save_file(const wchar_t* path, const char_t* indent = PUGIXML_TEXT("\t"), unsigned int flags = format_default, xml_encoding encoding = encoding_auto) const;
|
|
|
|
// Get document element
|
|
xml_node document_element() const;
|
|
};
|
|
|
|
#ifndef PUGIXML_NO_XPATH
|
|
// XPath query return type
|
|
enum xpath_value_type
|
|
{
|
|
xpath_type_none, // Unknown type (query failed to compile)
|
|
xpath_type_node_set, // Node set (xpath_node_set)
|
|
xpath_type_number, // Number
|
|
xpath_type_string, // String
|
|
xpath_type_boolean // Boolean
|
|
};
|
|
|
|
// XPath parsing result
|
|
struct PUGIXML_CLASS xpath_parse_result
|
|
{
|
|
// Error message (0 if no error)
|
|
const char* error;
|
|
|
|
// Last parsed offset (in char_t units from string start)
|
|
ptrdiff_t offset;
|
|
|
|
// Default constructor, initializes object to failed state
|
|
xpath_parse_result();
|
|
|
|
// Cast to bool operator
|
|
operator bool() const;
|
|
|
|
// Get error description
|
|
const char* description() const;
|
|
};
|
|
|
|
// A single XPath variable
|
|
class PUGIXML_CLASS xpath_variable
|
|
{
|
|
friend class xpath_variable_set;
|
|
|
|
protected:
|
|
xpath_value_type _type;
|
|
xpath_variable* _next;
|
|
|
|
xpath_variable(xpath_value_type type);
|
|
|
|
// Non-copyable semantics
|
|
xpath_variable(const xpath_variable&);
|
|
xpath_variable& operator=(const xpath_variable&);
|
|
|
|
public:
|
|
// Get variable name
|
|
const char_t* name() const;
|
|
|
|
// Get variable type
|
|
xpath_value_type type() const;
|
|
|
|
// Get variable value; no type conversion is performed, default value (false, NaN, empty string, empty node set) is returned on type mismatch error
|
|
bool get_boolean() const;
|
|
double get_number() const;
|
|
const char_t* get_string() const;
|
|
const xpath_node_set& get_node_set() const;
|
|
|
|
// Set variable value; no type conversion is performed, false is returned on type mismatch error
|
|
bool set(bool value);
|
|
bool set(double value);
|
|
bool set(const char_t* value);
|
|
bool set(const xpath_node_set& value);
|
|
};
|
|
|
|
// A set of XPath variables
|
|
class PUGIXML_CLASS xpath_variable_set
|
|
{
|
|
private:
|
|
xpath_variable* _data[64];
|
|
|
|
void _assign(const xpath_variable_set& rhs);
|
|
void _swap(xpath_variable_set& rhs);
|
|
|
|
xpath_variable* _find(const char_t* name) const;
|
|
|
|
static bool _clone(xpath_variable* var, xpath_variable** out_result);
|
|
static void _destroy(xpath_variable* var);
|
|
|
|
public:
|
|
// Default constructor/destructor
|
|
xpath_variable_set();
|
|
~xpath_variable_set();
|
|
|
|
// Copy constructor/assignment operator
|
|
xpath_variable_set(const xpath_variable_set& rhs);
|
|
xpath_variable_set& operator=(const xpath_variable_set& rhs);
|
|
|
|
#ifdef PUGIXML_HAS_MOVE
|
|
// Move semantics support
|
|
xpath_variable_set(xpath_variable_set&& rhs) PUGIXML_NOEXCEPT;
|
|
xpath_variable_set& operator=(xpath_variable_set&& rhs) PUGIXML_NOEXCEPT;
|
|
#endif
|
|
|
|
// Add a new variable or get the existing one, if the types match
|
|
xpath_variable* add(const char_t* name, xpath_value_type type);
|
|
|
|
// Set value of an existing variable; no type conversion is performed, false is returned if there is no such variable or if types mismatch
|
|
bool set(const char_t* name, bool value);
|
|
bool set(const char_t* name, double value);
|
|
bool set(const char_t* name, const char_t* value);
|
|
bool set(const char_t* name, const xpath_node_set& value);
|
|
|
|
// Get existing variable by name
|
|
xpath_variable* get(const char_t* name);
|
|
const xpath_variable* get(const char_t* name) const;
|
|
};
|
|
|
|
// A compiled XPath query object
|
|
class PUGIXML_CLASS xpath_query
|
|
{
|
|
private:
|
|
void* _impl;
|
|
xpath_parse_result _result;
|
|
|
|
typedef void (*unspecified_bool_type)(xpath_query***);
|
|
|
|
// Non-copyable semantics
|
|
xpath_query(const xpath_query&);
|
|
xpath_query& operator=(const xpath_query&);
|
|
|
|
public:
|
|
// Construct a compiled object from XPath expression.
|
|
// If PUGIXML_NO_EXCEPTIONS is not defined, throws xpath_exception on compilation errors.
|
|
explicit xpath_query(const char_t* query, xpath_variable_set* variables = PUGIXML_NULL);
|
|
|
|
// Constructor
|
|
xpath_query();
|
|
|
|
// Destructor
|
|
~xpath_query();
|
|
|
|
#ifdef PUGIXML_HAS_MOVE
|
|
// Move semantics support
|
|
xpath_query(xpath_query&& rhs) PUGIXML_NOEXCEPT;
|
|
xpath_query& operator=(xpath_query&& rhs) PUGIXML_NOEXCEPT;
|
|
#endif
|
|
|
|
// Get query expression return type
|
|
xpath_value_type return_type() const;
|
|
|
|
// Evaluate expression as boolean value in the specified context; performs type conversion if necessary.
|
|
// If PUGIXML_NO_EXCEPTIONS is not defined, throws std::bad_alloc on out of memory errors.
|
|
bool evaluate_boolean(const xpath_node& n) const;
|
|
|
|
// Evaluate expression as double value in the specified context; performs type conversion if necessary.
|
|
// If PUGIXML_NO_EXCEPTIONS is not defined, throws std::bad_alloc on out of memory errors.
|
|
double evaluate_number(const xpath_node& n) const;
|
|
|
|
#ifndef PUGIXML_NO_STL
|
|
// Evaluate expression as string value in the specified context; performs type conversion if necessary.
|
|
// If PUGIXML_NO_EXCEPTIONS is not defined, throws std::bad_alloc on out of memory errors.
|
|
string_t evaluate_string(const xpath_node& n) const;
|
|
#endif
|
|
|
|
// Evaluate expression as string value in the specified context; performs type conversion if necessary.
|
|
// At most capacity characters are written to the destination buffer, full result size is returned (includes terminating zero).
|
|
// If PUGIXML_NO_EXCEPTIONS is not defined, throws std::bad_alloc on out of memory errors.
|
|
// If PUGIXML_NO_EXCEPTIONS is defined, returns empty set instead.
|
|
size_t evaluate_string(char_t* buffer, size_t capacity, const xpath_node& n) const;
|
|
|
|
// Evaluate expression as node set in the specified context.
|
|
// If PUGIXML_NO_EXCEPTIONS is not defined, throws xpath_exception on type mismatch and std::bad_alloc on out of memory errors.
|
|
// If PUGIXML_NO_EXCEPTIONS is defined, returns empty node set instead.
|
|
xpath_node_set evaluate_node_set(const xpath_node& n) const;
|
|
|
|
// Evaluate expression as node set in the specified context.
|
|
// Return first node in document order, or empty node if node set is empty.
|
|
// If PUGIXML_NO_EXCEPTIONS is not defined, throws xpath_exception on type mismatch and std::bad_alloc on out of memory errors.
|
|
// If PUGIXML_NO_EXCEPTIONS is defined, returns empty node instead.
|
|
xpath_node evaluate_node(const xpath_node& n) const;
|
|
|
|
// Get parsing result (used to get compilation errors in PUGIXML_NO_EXCEPTIONS mode)
|
|
const xpath_parse_result& result() const;
|
|
|
|
// Safe bool conversion operator
|
|
operator unspecified_bool_type() const;
|
|
|
|
// Borland C++ workaround
|
|
bool operator!() const;
|
|
};
|
|
|
|
#ifndef PUGIXML_NO_EXCEPTIONS
|
|
#if defined(_MSC_VER)
|
|
// C4275 can be ignored in Visual C++ if you are deriving
|
|
// from a type in the Standard C++ Library
|
|
#pragma warning(push)
|
|
#pragma warning(disable: 4275)
|
|
#endif
|
|
// XPath exception class
|
|
class PUGIXML_CLASS xpath_exception: public std::exception
|
|
{
|
|
private:
|
|
xpath_parse_result _result;
|
|
|
|
public:
|
|
// Construct exception from parse result
|
|
explicit xpath_exception(const xpath_parse_result& result);
|
|
|
|
// Get error message
|
|
virtual const char* what() const throw() PUGIXML_OVERRIDE;
|
|
|
|
// Get parse result
|
|
const xpath_parse_result& result() const;
|
|
};
|
|
#if defined(_MSC_VER)
|
|
#pragma warning(pop)
|
|
#endif
|
|
#endif
|
|
|
|
// XPath node class (either xml_node or xml_attribute)
|
|
class PUGIXML_CLASS xpath_node
|
|
{
|
|
private:
|
|
xml_node _node;
|
|
xml_attribute _attribute;
|
|
|
|
typedef void (*unspecified_bool_type)(xpath_node***);
|
|
|
|
public:
|
|
// Default constructor; constructs empty XPath node
|
|
xpath_node();
|
|
|
|
// Construct XPath node from XML node/attribute
|
|
xpath_node(const xml_node& node);
|
|
xpath_node(const xml_attribute& attribute, const xml_node& parent);
|
|
|
|
// Get node/attribute, if any
|
|
xml_node node() const;
|
|
xml_attribute attribute() const;
|
|
|
|
// Get parent of contained node/attribute
|
|
xml_node parent() const;
|
|
|
|
// Safe bool conversion operator
|
|
operator unspecified_bool_type() const;
|
|
|
|
// Borland C++ workaround
|
|
bool operator!() const;
|
|
|
|
// Comparison operators
|
|
bool operator==(const xpath_node& n) const;
|
|
bool operator!=(const xpath_node& n) const;
|
|
};
|
|
|
|
#ifdef __BORLANDC__
|
|
// Borland C++ workaround
|
|
bool PUGIXML_FUNCTION operator&&(const xpath_node& lhs, bool rhs);
|
|
bool PUGIXML_FUNCTION operator||(const xpath_node& lhs, bool rhs);
|
|
#endif
|
|
|
|
// A fixed-size collection of XPath nodes
|
|
class PUGIXML_CLASS xpath_node_set
|
|
{
|
|
public:
|
|
// Collection type
|
|
enum type_t
|
|
{
|
|
type_unsorted, // Not ordered
|
|
type_sorted, // Sorted by document order (ascending)
|
|
type_sorted_reverse // Sorted by document order (descending)
|
|
};
|
|
|
|
// Constant iterator type
|
|
typedef const xpath_node* const_iterator;
|
|
|
|
// We define non-constant iterator to be the same as constant iterator so that various generic algorithms (i.e. boost foreach) work
|
|
typedef const xpath_node* iterator;
|
|
|
|
// Default constructor. Constructs empty set.
|
|
xpath_node_set();
|
|
|
|
// Constructs a set from iterator range; data is not checked for duplicates and is not sorted according to provided type, so be careful
|
|
xpath_node_set(const_iterator begin, const_iterator end, type_t type = type_unsorted);
|
|
|
|
// Destructor
|
|
~xpath_node_set();
|
|
|
|
// Copy constructor/assignment operator
|
|
xpath_node_set(const xpath_node_set& ns);
|
|
xpath_node_set& operator=(const xpath_node_set& ns);
|
|
|
|
#ifdef PUGIXML_HAS_MOVE
|
|
// Move semantics support
|
|
xpath_node_set(xpath_node_set&& rhs) PUGIXML_NOEXCEPT;
|
|
xpath_node_set& operator=(xpath_node_set&& rhs) PUGIXML_NOEXCEPT;
|
|
#endif
|
|
|
|
// Get collection type
|
|
type_t type() const;
|
|
|
|
// Get collection size
|
|
size_t size() const;
|
|
|
|
// Indexing operator
|
|
const xpath_node& operator[](size_t index) const;
|
|
|
|
// Collection iterators
|
|
const_iterator begin() const;
|
|
const_iterator end() const;
|
|
|
|
// Sort the collection in ascending/descending order by document order
|
|
void sort(bool reverse = false);
|
|
|
|
// Get first node in the collection by document order
|
|
xpath_node first() const;
|
|
|
|
// Check if collection is empty
|
|
bool empty() const;
|
|
|
|
private:
|
|
type_t _type;
|
|
|
|
xpath_node _storage[1];
|
|
|
|
xpath_node* _begin;
|
|
xpath_node* _end;
|
|
|
|
void _assign(const_iterator begin, const_iterator end, type_t type);
|
|
void _move(xpath_node_set& rhs) PUGIXML_NOEXCEPT;
|
|
};
|
|
#endif
|
|
|
|
#ifndef PUGIXML_NO_STL
|
|
// Convert wide string to UTF8
|
|
std::basic_string<char, std::char_traits<char>, std::allocator<char> > PUGIXML_FUNCTION as_utf8(const wchar_t* str);
|
|
std::basic_string<char, std::char_traits<char>, std::allocator<char> > PUGIXML_FUNCTION as_utf8(const std::basic_string<wchar_t, std::char_traits<wchar_t>, std::allocator<wchar_t> >& str);
|
|
|
|
// Convert UTF8 to wide string
|
|
std::basic_string<wchar_t, std::char_traits<wchar_t>, std::allocator<wchar_t> > PUGIXML_FUNCTION as_wide(const char* str);
|
|
std::basic_string<wchar_t, std::char_traits<wchar_t>, std::allocator<wchar_t> > PUGIXML_FUNCTION as_wide(const std::basic_string<char, std::char_traits<char>, std::allocator<char> >& str);
|
|
#endif
|
|
|
|
// Memory allocation function interface; returns pointer to allocated memory or NULL on failure
|
|
typedef void* (*allocation_function)(size_t size);
|
|
|
|
// Memory deallocation function interface
|
|
typedef void (*deallocation_function)(void* ptr);
|
|
|
|
// Override default memory management functions. All subsequent allocations/deallocations will be performed via supplied functions.
|
|
void PUGIXML_FUNCTION set_memory_management_functions(allocation_function allocate, deallocation_function deallocate);
|
|
|
|
// Get current memory management functions
|
|
allocation_function PUGIXML_FUNCTION get_memory_allocation_function();
|
|
deallocation_function PUGIXML_FUNCTION get_memory_deallocation_function();
|
|
}
|
|
|
|
#if !defined(PUGIXML_NO_STL) && (defined(_MSC_VER) || defined(__ICC))
|
|
namespace std
|
|
{
|
|
// Workarounds for (non-standard) iterator category detection for older versions (MSVC7/IC8 and earlier)
|
|
std::bidirectional_iterator_tag PUGIXML_FUNCTION _Iter_cat(const pugi::xml_node_iterator&);
|
|
std::bidirectional_iterator_tag PUGIXML_FUNCTION _Iter_cat(const pugi::xml_attribute_iterator&);
|
|
std::bidirectional_iterator_tag PUGIXML_FUNCTION _Iter_cat(const pugi::xml_named_node_iterator&);
|
|
}
|
|
#endif
|
|
|
|
#if !defined(PUGIXML_NO_STL) && defined(__SUNPRO_CC)
|
|
namespace std
|
|
{
|
|
// Workarounds for (non-standard) iterator category detection
|
|
std::bidirectional_iterator_tag PUGIXML_FUNCTION __iterator_category(const pugi::xml_node_iterator&);
|
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std::bidirectional_iterator_tag PUGIXML_FUNCTION __iterator_category(const pugi::xml_attribute_iterator&);
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std::bidirectional_iterator_tag PUGIXML_FUNCTION __iterator_category(const pugi::xml_named_node_iterator&);
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}
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#endif
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|
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#endif
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|
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// Make sure implementation is included in header-only mode
|
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// Use macro expansion in #include to work around QMake (QTBUG-11923)
|
|
#if defined(PUGIXML_HEADER_ONLY) && !defined(PUGIXML_SOURCE)
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|
# define PUGIXML_SOURCE "pugixml.cpp"
|
|
# include PUGIXML_SOURCE
|
|
#endif
|
|
|
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/**
|
|
* Copyright (c) 2006-2022 Arseny Kapoulkine
|
|
*
|
|
* 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.
|
|
*/
|