* json parser

  * added test cases from JSONTestSuite.

  * fixed a bug on parsing an empty array containing one or more blank
    chracters between the brackets.

* sax parser

  * fixed a bug on parsing an attribute value with encoded character
    immediately followed by a ';', such as '&amp;;'.

  * fixed a bug on parsing an assignment character '=' that either preceded or
    followed by whitespaces in attribute definition.

  * optionally use SSE4.2 intrinsics to speed up element name parsing.

* orcus-xml

  * revised its cli internface to make use of boost's program_options.

  * orcus-xml-dump's functionality has been combined into orcus-xml.

  * map mode now supports nested repeat elements to be mapped as range fields.

* orcus-json

  * map mode has been added to allow mapping of JSON documents to spreadsheet
    document model.  This mode either takes explicit mapping rule via map
    file, or performs automatic mapping by auto-identifying mappable ranges by
    analyzing the structure of the JSON document.

  * structure mode has been added to display the logical structures of JSON
    documents.

  * significantly improved performance of json document tree by utilizing
    object pool to manage the life cycles of json value instances.

* xls-xml

  * added support for importing named color values in the ss:Color attributes.

  * added support for handling UTF-16 streams that contains byte order marks.

* spreadsheet document

  * significantly improved performance of flat format output generation.

* internal

  * string_pool now uses boost's object_pool to manage the instances of stored
    strings.

  * file_content class has been added to memory-map file contents instead of
    loading them in-memory.

  * memory_content class has been added to map in-memory buffer with the
    optional ability to perform unicode conversion.

  * dom_tree has been renamed to dom::document_tree, and its interface has
    been cleaned up to hide its implementation details.

orcus 0.14.1

* addressed a number of coverity issues.

* improved precision of points-to-twips measurement conversions by
  reducing the number of numeric operations to be performed.  This
  especially helps on i386 platforms.

orcus 0.14.0

* spreadsheet interface

  * import_data_table::set_range() now receives a parameter of type
    range_t.

  * import_sheet::set_array_formula() interface methods have been
    removed and replaced with import_sheet::get_array_formula() that
    returns an interface of type import_array_formula.

  * import_formula interface class has been added to replace the
    formula related methods of import_sheet.  As a result,
    set_formula(), set_shared_formula(), and set_formula_result()
    methods have been removed from the import_sheet interface class.

  * import_auto_filter::set_range() now receives a parameter of type
    range_t, rather than a string value representing a range.

  * import_sheet::set_fill_pattern_type() interface method now takes
    an enum value of type fill_pattern_t, rather than a string value.

* xls-xml

  * pick up the character set from the XML declaration, and pass it
    to the client app via import_global_settings interface.

  * support importing of array formulas.

* xlsx

  * support importing of array formulas.

  * fixed a bug where sheet indices being passed to the append_sheet()
    interface method were incorrect.

* shared formula handling code has been re-worked.

* spreadsheet::sheet class has been de-coupled from the import and
  export interfaces.

* previously known as import_styles class is now split into styles
  class and import_styles factory wrapper class.

* sax_parser now gracefully ignores leading whitespace(s) if any,
  rather than aborting the parsing for it's not a valid XML stream
  to have leading whitespace(s).  In the future we should make this
  behavior configurable.

* python

  * add orcus.xlsx.read() function that takes a file object to load
    an xlsx file as a replacement for orcus.xlsx.read_file().

  * add orcus.ods.read(), orcus.xls_xml.read(), orcus.csv.read(),
    and orcus.gnumeric.read() functions.

  * add orcus.Sheet.write() method which exports sheet content to
    specified format.  For now only the csv format type is
    supported.

* xml_map_tree no longer requires the source stream persisted in
  memory between the read and write.

* the sax parser now stores the offset positions of each element
  rather than their memory positions, in order to make the position
  values usable between duplicated stream instances.

* xml_structure_tree to support selection of an element by element
  path.

* document

  * correctly set the argument separator depending on the formula
    grammar type.  This change fixes loading of ods documents with
    formula cells.

* fixed a build issue with boost 1.67.

orcus 0.13.4

* xls-xml

  * fix incorrect handling of formula cells without result caches.

* fix incorrect parsing of invalid XML documents with multiple
  self-closing root elements.

orcus 0.13.3

* fix the handling of alpha values passed to set_fill_fg_color() and
  set_fill_bg_color().  A value of 255 means fully opaque whereas a
  value of 0 means fully transparent.

* fix the solid fill color import, to use the foreground color
  instead of the background color.

* xlsx

  * import colors to disgonal borders.

  * remove carriage returns from multi-line cell strings.

* xls-xml

  * import border colors.

  * import hidden row and column flags.

orcus 0.13.2

* xls-xml

  * import column width and row height properties.

  * import solid fill colors in cells.

  * import text alignment properties.

  * import cell borders.

* xlsx

  * import justified and distributed text alignment properties.

  * fix exception being thrown when the diagonal element is
    encountered.

  * import diagonal cell borders.

orcus 0.13.1

* use a more efficient way to set format ranges in spreadsheet
  model.

* support single quoted strings in the css parser.

orcus 0.13.0

* fix incorrect parsing of XML 1.0 documents that don't include
  header declarations.

* fix incorrect parsing of XML elements and attributes whose names
  start with an underscore.

* orcus-csv: add an option to split content into multiple sheets in
  case it doesn't fit in one sheet.

* add csv dump mode for all spreadsheet document based filter
  commands.

* orcus-ods: suppress debug outputs unless the debug flag is set.

* orcus-xlsx: correctly import boolean cell values.

* add experimental cmake-based build support, primarily for Windows.

* add initial support for importing select sheet view settings in
  xlsx and xls-xml.

* add API for directly constructing json document trees.

* support import of cell formats for xls-xml.

* support single-quoted attribute values in the sax xml parser.

* orcus-xml: fix incorrect mapping of XML range data to sheet range
  when the first column contains one or more empty elements.

* support import of named expressions for xlsx and xls-xml.

* support import of formula cells for xls-xml.

* implement pivot cache import for xlsx.

* fix a number of crashes in the csv parser.

* fix a number of crashes in the json parser.

* fix a number of crashes in the yaml parser.

* integrate orcus into gitlab's continuous integration.

orcus 0.12.1

* fix build when --disable-spreadsheet-model is specified and the
  ixion headers are not present.

* fix loading of file streams on Windows.

* get the debug flag to work again.

orcus 0.12.0

* handle escaped unicode in the xml parser

* improve odf styles import

* implement threaded xml parser

* implement threaded json parser

orcus 0.11.2

* make it buildable with mdds-1.2.

orcus 0.11.1

* fixed various build issues with MSVC and clang on OSX.

orcus 0.11.0

* remove boost dependency from the public headers.

* implement JSON parser and document storage model.

* implement YAML parser and document storage model.

* add orcus-json.

* add orcus-yaml.

* improve parse error output from the XML parser.

* use enum class in import_style::set_border_style().

* support non-local file import.

orcus 0.1.0

* initial release.
