Changelog

27.11.2014 - version 1.5

Major release, featuring a lot of performance improvements and some new features.

Specification changes:
1. xml_document::load(const char_t*) was renamed to load_string; the old method is still available and will be deprecated in a future release
2. xml_node::select_single_node was renamed to select_node; the old method is still available and will be deprecated in a future release.
New features:
1. Added xml_node::append_move and other functions for moving nodes within a document
2. Added xpath_query::evaluate_node for evaluating queries with a single node as a result
Performance improvements:
1. Optimized XML parsing (10-40% faster with clang/gcc, up to 10% faster with MSVC)
2. Optimized memory consumption when copying nodes in the same document (string contents is now shared)
3. Optimized node copying (10% faster for cross-document copies, 3x faster for inter-document copies; also it now consumes a constant amount of stack space)
4. Optimized node output (60% faster; also it now consumes a constant amount of stack space)
5. Optimized XPath allocation (query evaluation now results in fewer temporary allocations)
6. Optimized XPath sorting (node set sorting is 2-3x faster in some cases)
7. Optimized XPath evaluation (XPathMark suite is 100x faster; some commonly used queries are 3-4x faster)
Compatibility improvements:
1. Fixed xml_node::offset_debug for corner cases
2. Fixed undefined behavior while calling memcpy in some cases
3. Fixed MSVC 2015 compilation warnings
4. Fixed contrib/foreach.hpp for Boost 1.56.0
Bug fixes
1. Adjusted comment output to avoid malformed documents if the comment value contains "--"
2. Fix XPath sorting for documents that were constructed using append_buffer
3. Fix load_file for wide-character paths with non-ASCII characters in MinGW with C++11 mode enabled

27.02.2014 - version 1.4

Major release, featuring various new features, bug fixes and compatibility improvements.

Specification changes:
1. Documents without element nodes are now rejected with status_no_document_element error, unless parse_fragment option is used
New features:
1. Added XML fragment parsing (parse_fragment flag)
2. Added PCDATA whitespace trimming (parse_trim_pcdata flag)
3. Added long long support for xml_attribute and xml_text (as_llong, as_ullong and set_value/set overloads)
4. Added hexadecimal integer parsing support for as_int/as_uint/as_llong/as_ullong
5. Added xml_node::append_buffer to improve performance of assembling documents from fragments
6. xml_named_node_iterator is now bidirectional
7. Reduced XPath stack consumption during compilation and evaluation (useful for embedded systems)
Compatibility improvements:
1. Improved support for platforms without wchar_t support
2. Fixed several false positives in clang static analysis
3. Fixed several compilation warnings for various GCC versions
Bug fixes:
1. Fixed undefined pointer arithmetic in XPath implementation
2. Fixed non-seekable iostream support for certain stream types, i.e. boost file_source with pipe input
3. Fixed xpath_query::return_type() for some expressions
4. Fixed dllexport issues with xml_named_node_iterator
5. Fixed find_child_by_attribute assertion for attributes with null name/value

1.05.2012 - version 1.2

Major release, featuring header-only mode, various interface enhancements (i.e. PCDATA manipulation and C++11 iteration), many other features and compatibility improvements.

New features:
1. Added xml_text helper class for working with PCDATA/CDATA contents of an element node
2. Added optional header-only mode (controlled by PUGIXML_HEADER_ONLY define)
3. Added xml_node::children() and xml_node::attributes() for C++11 ranged for loop or BOOST_FOREACH
4. Added support for Latin-1 (ISO-8859-1) encoding conversion during loading and saving
5. Added custom default values for xml_attribute::as_* (they are returned if the attribute does not exist)
6. Added parse_ws_pcdata_single flag for preserving whitespace-only PCDATA in case it's the only child
7. Added format_save_file_text for xml_document::save_file to open files as text instead of binary (changes newlines on Windows)
8. Added format_no_escapes flag to disable special symbol escaping (complements ~parse_escapes)
9. Added support for loading document from streams that do not support seeking
10. Added PUGIXML_MEMORY_* constants for tweaking allocation behavior (useful for embedded systems)
11. Added PUGIXML_VERSION preprocessor define
Compatibility improvements:
1. Parser does not require setjmp support (improves compatibility with some embedded platforms, enables clr:pure compilation)
2. STL forward declarations are no longer used (fixes SunCC/RWSTL compilation, fixes clang compilation in C++11 mode)
3. Fixed AirPlay SDK, Android, Windows Mobile (WinCE) and C++/CLI compilation
4. Fixed several compilation warnings for various GCC versions, Intel C++ compiler and Clang
Bug fixes:
1. Fixed unsafe bool conversion to avoid problems on C++/CLI
2. Iterator dereference operator is const now (fixes Boost filter_iterator support)
3. xml_document::save_file now checks for file I/O errors during saving

1.11.2010 - version 1.0

Major release, featuring many XPath enhancements, wide character filename support, miscellaneous performance improvements, bug fixes and more.

XPath:
1. XPath implementation is moved to pugixml.cpp (which is the only source file now); use PUGIXML_NO_XPATH if you want to disable XPath to reduce code size
2. XPath is now supported without exceptions (PUGIXML_NO_EXCEPTIONS); the error handling mechanism depends on the presence of exception support
3. XPath is now supported without STL (PUGIXML_NO_STL)
4. Introduced variable support
5. Introduced new xpath_query::evaluate_string, which works without STL
6. Introduced new xpath_node_set constructor (from an iterator range)
7. Evaluation function now accept attribute context nodes
8. All internal allocations use custom allocation functions
9. Improved error reporting; now a last parsed offset is returned together with the parsing error
Bug fixes:
1. Fixed memory leak for loading from streams with stream exceptions turned on
2. Fixed custom deallocation function calling with null pointer in one case
3. Fixed missing attributes for iterator category functions; all functions/classes can now be DLL-exported
4. Worked around Digital Mars compiler bug, which lead to minor read overfetches in several functions
5. load_file now works with 2+ Gb files in MSVC/MinGW
6. XPath: fixed memory leaks for incorrect queries
7. XPath: fixed xpath_node() attribute constructor with empty attribute argument
8. XPath: fixed lang() function for non-ASCII arguments
Specification changes:
1. CDATA nodes containing ]]> are printed as several nodes; while this changes the internal structure, this is the only way to escape CDATA contents
2. Memory allocation errors during parsing now preserve last parsed offset (to give an idea about parsing progress)
3. If an element node has the only child, and it is of CDATA type, then the extra indentation is omitted (previously this behavior only held for PCDATA children)
Additional functionality:
1. Added xml_parse_result default constructor
2. Added xml_document::load_file and xml_document::save_file with wide character paths
3. Added as_utf8 and as_wide overloads for std::wstring/std::string arguments
4. Added DOCTYPE node type (node_doctype) and a special parse flag, parse_doctype, to add such nodes to the document during parsing
5. Added parse_full parse flag mask, which extends parse_default with all node type parsing flags except parse_ws_pcdata
6. Added xml_node::hash_value() and xml_attribute::hash_value() functions for use in hash-based containers
7. Added internal_object() and additional constructor for both xml_node and xml_attribute for easier marshalling (useful for language bindings)
8. Added xml_document::document_element() function
9. Added xml_node::prepend_attribute, xml_node::prepend_child and xml_node::prepend_copy functions
10. Added xml_node::append_child, xml_node::prepend_child, xml_node::insert_child_before and xml_node::insert_child_after overloads for element nodes (with name instead of type)
11. Added xml_document::reset() function
Performance improvements:
1. xml_node::root() and xml_node::offset_debug() are now O(1) instead of O(logN)
2. Minor parsing optimizations
3. Minor memory optimization for strings in DOM tree (set_name/set_value)
4. Memory optimization for string memory reclaiming in DOM tree (set_name/set_value now reallocate the buffer if memory waste is too big)
5. XPath: optimized document order sorting
6. XPath: optimized child/attribute axis step
7. XPath: optimized number-to-string conversions in MSVC
8. XPath: optimized concat for many arguments
9. XPath: optimized evaluation allocation mechanism: constant and document strings are not heap-allocated
10. XPath: optimized evaluation allocation mechanism: all temporaries' allocations use fast stack-like allocator
Compatibility:
1. Removed wildcard functions (xml_node::child_w, xml_node::attribute_w, etc.)
2. Removed xml_node::all_elements_by_name
3. Removed xpath_type_t enumeration; use xpath_value_type instead
4. Removed format_write_bom_utf8 enumeration; use format_write_bom instead
5. Removed xml_document::precompute_document_order, xml_attribute::document_order and xml_node::document_order functions; document order sort optimization is now automatic
6. Removed xml_document::parse functions and transfer_ownership struct; use xml_document::load_buffer_inplace and xml_document::load_buffer_inplace_own instead
7. Removed as_utf16 function; use as_wide instead

1.07.2010 - version 0.9

Major release, featuring extended and improved Unicode support, miscellaneous performance improvements, bug fixes and more.

Major Unicode improvements:
1. Introduced encoding support (automatic/manual encoding detection on load, manual encoding selection on save, conversion from/to UTF8, UTF16 LE/BE, UTF32 LE/BE)
2. Introduced wchar_t mode (you can set PUGIXML_WCHAR_MODE define to switch pugixml internal encoding from UTF8 to wchar_t; all functions are switched to their Unicode variants)
3. Load/save functions now support wide streams
Bug fixes:
1. Fixed document corruption on failed parsing bug
2. XPath string <-> number conversion improvements (increased precision, fixed crash for huge numbers)
3. Improved DOCTYPE parsing: now parser recognizes all well-formed DOCTYPE declarations
4. Fixed xml_attribute::as_uint() for large numbers (i.e. 2^32-1)
5. Fixed xml_node::first_element_by_path for path components that are prefixes of node names, but are not exactly equal to them.
Specification changes:
1. parse() API changed to load_buffer/load_buffer_inplace/load_buffer_inplace_own; load_buffer APIs do not require zero-terminated strings.
2. Renamed as_utf16 to as_wide
3. Changed xml_node::offset_debug return type and xml_parse_result::offset type to ptrdiff_t
4. Nodes/attributes with empty names are now printed as :anonymous
Performance improvements:
1. Optimized document parsing and saving
2. Changed internal memory management: internal allocator is used for both metadata and name/value data; allocated pages are deleted if all allocations from them are deleted
3. Optimized memory consumption: sizeof(xml_node_struct) reduced from 40 bytes to 32 bytes on x86
4. Optimized debug mode parsing/saving by order of magnitude
Miscellaneous:
1. All STL includes except <exception> in pugixml.hpp are replaced with forward declarations
2. xml_node::remove_child and xml_node::remove_attribute now return the operation result
Compatibility:
1. parse() and as_utf16 are left for compatibility (these functions are deprecated and will be removed in version 1.0)
2. Wildcard functions, document_order/precompute_document_order functions, all_elements_by_name function and format_write_bom_utf8 flag are deprecated and will be removed in version 1.0
3. xpath_type_t enumeration was renamed to xpath_value_type; xpath_type_t is deprecated and will be removed in version 1.0

8.11.2009 - version 0.5

Major bugfix release. Changes:

XPath bugfixes:
1. Fixed translate(), lang() and concat() functions (infinite loops/crashes)
2. Fixed compilation of queries with empty literal strings ("")
3. Fixed axis tests: they never add empty nodes/attributes to the resulting node set now
4. Fixed string-value evaluation for node-set (the result excluded some text descendants)
5. Fixed self:: axis (it behaved like ancestor-or-self::)
6. Fixed following:: and preceding:: axes (they included descendent and ancestor nodes, respectively)
7. Minor fix for namespace-uri() function (namespace declaration scope includes the parent element of namespace declaration attribute)
8. Some incorrect queries are no longer parsed now (i.e. foo: *)
9. Fixed text()/etc. node test parsing bug (i.e. foo[text()] failed to compile)
10. Fixed root step (/) - it now selects empty node set if query is evaluated on empty node
11. Fixed string to number conversion ("123 " converted to NaN, "123 .456" converted to 123.456 - now the results are 123 and NaN, respectively)
12. Node set copying now preserves sorted type; leads to better performance on some queries
Miscellaneous bugfixes:
1. Fixed xml_node::offset_debug for PI nodes
2. Added empty attribute checks to xml_node::remove_attribute
3. Fixed node_pi and node_declaration copying
4. Const-correctness fixes
Specification changes:
1. xpath_node::select_nodes() and related functions now throw exception if expression return type is not node set (instead of assertion)
2. xml_node::traverse() now sets depth to -1 for both begin() and end() callbacks (was 0 at begin() and -1 at end())
3. In case of non-raw node printing a newline is output after PCDATA inside nodes if the PCDATA has siblings
4. UTF8 -> wchar_t conversion now considers 5-byte UTF8-like sequences as invalid
New features:
1. Added xpath_node_set::operator[] for index-based iteration
2. Added xpath_query::return_type()
3. Added getter accessors for memory-management functions

17.09.2009 - version 0.42

Maintenance release. Changes:

Bug fixes:
1. Fixed deallocation in case of custom allocation functions or if delete[] / free are incompatible
2. XPath parser fixed for incorrect queries (i.e. incorrect XPath queries should now always fail to compile)
3. Const-correctness fixes for find_child_by_attribute
4. Improved compatibility (miscellaneous warning fixes, fixed cstring include dependency for GCC)
5. Fixed iterator begin/end and print function to work correctly for empty nodes
New features:
1. Added PUGIXML_API/PUGIXML_CLASS/PUGIXML_FUNCTION configuration macros to control class/function attributes
2. Added xml_attribute::set_value overloads for different types

8.02.2009 - version 0.41

Maintenance release. Changes:

Bug fixes:
1. Fixed bug with node printing (occasionally some content was not written to output stream)

18.01.2009 - version 0.4

Changes:

Bug fixes:
1. Documentation fix in samples for parse() with manual lifetime control
2. Fixed document order sorting in XPath (it caused wrong order of nodes after xpath_node_set::sort and wrong results of some XPath queries)
Node printing changes:
1. Single quotes are no longer escaped when printing nodes
2. Symbols in second half of ASCII table are no longer escaped when printing nodes; because of this, format_utf8 flag is deleted as it's no longer needed and format_write_bom is renamed to format_write_bom_utf8.
3. Reworked node printing - now it works via xml_writer interface; implementations for FILE* and std::ostream are available. As a side-effect, xml_document::save_file now works without STL.
New features:
1. Added unsigned integer support for attributes (xml_attribute::as_uint, xml_attribute::operator=)
2. Now document declaration (<?xml ...?>) is parsed as node with type node_declaration when parse_declaration flag is specified (access to encoding/version is performed as if they were attributes, i.e. doc.child("xml").attribute("version").as_float()); corresponding flags for node printing were also added
3. Added support for custom memory management (see set_memory_management_functions for details)
4. Implemented node/attribute copying (see xml_node::insert_copy_* and xml_node::append_copy for details)
5. Added find_child_by_attribute and find_child_by_attribute_w to simplify parsing code in some cases (i.e. COLLADA files)
6. Added file offset information querying for debugging purposes (now you're able to determine exact location of any xml_node in parsed file, see xml_node::offset_debug for details)
7. Improved error handling for parsing - now load(), load_file() and parse() return xml_parse_result, which contains error code and last parsed offset; this does not break old interface as xml_parse_result can be implicitly casted to bool.

31.10.2007 - version 0.34

Maintenance release. Changes:

Bug fixes:
1. Fixed bug with loading from text-mode iostreams
2. Fixed leak when transfer_ownership is true and parsing is failing
3. Fixed bug in saving (\r and \n are now escaped in attribute values)
4. Renamed free() to destroy() - some macro conflicts were reported
New features:
1. Improved compatibility (supported Digital Mars C++, MSVC 6, CodeWarrior 8, PGI C++, Comeau, supported PS3 and XBox360)
2. PUGIXML_NO_EXCEPTION flag for platforms without exception handling

21.02.2007 - version 0.3

Refactored, reworked and improved version. Changes:

Interface:
1. Added XPath
2. Added tree modification functions
3. Added no STL compilation mode
4. Added saving document to file
5. Refactored parsing flags
6. Removed xml_parser class in favor of xml_document
7. Added transfer ownership parsing mode
8. Modified the way xml_tree_walker works
9. Iterators are now non-constant
Implementation:
1. Support of several compilers and platforms
2. Refactored and sped up parsing core
3. Improved standard compliancy
4. Added XPath implementation
5. Fixed several bugs

6.11.2006 - version 0.2

First public release. Changes:

Bug fixes:
1. Fixed child_value() (for empty nodes)
2. Fixed xml_parser_impl warning at W4
New features:
1. Introduced child_value(name) and child_value_w(name)
2. parse_eol_pcdata and parse_eol_attribute flags + parse_minimal optimizations
3. Optimizations of strconv_t

15.07.2006 - version 0.1

First private release for testing purposes