Merge pull request #4636 from davidsiaw/doxygen

Generate doxygen docs for mruby

36 files changed, 2721 insertions, 249 deletions

diff --git a/.gitignore b/.gitignore
index 400c77386..a1dbc6a3c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -30,5 +30,6 @@ tags
 /benchmark/*.png
 
 /doc/api
+/doxygen/
 
 /src/y.tab.c
diff --git a/Doxyfile b/Doxyfile
new file mode 100644
index 000000000..9ee375f86
--- /dev/null
+++ b/Doxyfile
@@ -0,0 +1,2430 @@
+# Doxyfile 1.8.13
+
+#---------------------------------------------------------------------------
+# Project related configuration options
+#---------------------------------------------------------------------------
+
+DOXYFILE_ENCODING      = UTF-8
+PROJECT_NAME           = "mruby"
+PROJECT_NUMBER         = 2.0.1
+
+PROJECT_BRIEF          = "mruby is the lightweight implementation of the Ruby language"
+
+PROJECT_LOGO           = doc/mruby_logo_red_icon.png
+
+OUTPUT_DIRECTORY       = doxygen
+
+USE_MDFILE_AS_MAINPAGE = README.md
+
+INPUT                  = README.md \
+                         src \
+                         include \
+                         include/mruby \
+                         mrblib \
+                         doc \
+                         doc/guides
+
+# Red for Ruby
+HTML_COLORSTYLE_HUE    = 359
+
+# The following expansions 
+ENABLE_PREPROCESSING   = YES
+MACRO_EXPANSION        = YES
+EXPAND_ONLY_PREDEF     = NO
+PREDEFINED             = 
+EXPAND_AS_DEFINED      = 
+SKIP_FUNCTION_MACROS   = NO
+
+# This tells doxygen to search the places that make sense
+SEARCH_INCLUDES        = YES
+INCLUDE_PATH           = include include/mruby
+INCLUDE_FILE_PATTERNS  = *.h
+
+CLANG_ASSISTED_PARSING = NO
+CLANG_OPTIONS          = -I./include
+
+# This thing creates documentation elements for everything, even when its not documented. Its a little ugly to do it right now because huge swathes of code aren't documented.
+EXTRACT_ALL            = NO
+
+# Document MRB_INLINE functions
+EXTRACT_STATIC         = YES
+
+#===========================================================================
+# BELOW THIS LINE IS CRUFT GENERATED BY doxygen -g
+# If you edit anything below this, bring it up here so its easier to read.
+#===========================================================================
+
+# If the CREATE_SUBDIRS tag is set to YES then doxygen will create 4096 sub-
+# directories (in 2 levels) under the output directory of each output format and
+# will distribute the generated files over these directories. Enabling this
+# option can be useful when feeding doxygen a huge amount of source files, where
+# putting all generated files in the same directory would otherwise causes
+# performance problems for the file system.
+# The default value is: NO.
+
+CREATE_SUBDIRS         = NO
+
+# If the ALLOW_UNICODE_NAMES tag is set to YES, doxygen will allow non-ASCII
+# characters to appear in the names of generated files. If set to NO, non-ASCII
+# characters will be escaped, for example _xE3_x81_x84 will be used for Unicode
+# U+3044.
+# The default value is: NO.
+
+ALLOW_UNICODE_NAMES    = NO
+
+# The OUTPUT_LANGUAGE tag is used to specify the language in which all
+# documentation generated by doxygen is written. Doxygen will use this
+# information to generate all constant output in the proper language.
+# Possible values are: Afrikaans, Arabic, Armenian, Brazilian, Catalan, Chinese,
+# Chinese-Traditional, Croatian, Czech, Danish, Dutch, English (United States),
+# Esperanto, Farsi (Persian), Finnish, French, German, Greek, Hungarian,
+# Indonesian, Italian, Japanese, Japanese-en (Japanese with English messages),
+# Korean, Korean-en (Korean with English messages), Latvian, Lithuanian,
+# Macedonian, Norwegian, Persian (Farsi), Polish, Portuguese, Romanian, Russian,
+# Serbian, Serbian-Cyrillic, Slovak, Slovene, Spanish, Swedish, Turkish,
+# Ukrainian and Vietnamese.
+# The default value is: English.
+
+OUTPUT_LANGUAGE        = English
+
+# If the BRIEF_MEMBER_DESC tag is set to YES, doxygen will include brief member
+# descriptions after the members that are listed in the file and class
+# documentation (similar to Javadoc). Set to NO to disable this.
+# The default value is: YES.
+
+BRIEF_MEMBER_DESC      = YES
+
+# If the REPEAT_BRIEF tag is set to YES, doxygen will prepend the brief
+# description of a member or function before the detailed description
+#
+# Note: If both HIDE_UNDOC_MEMBERS and BRIEF_MEMBER_DESC are set to NO, the
+# brief descriptions will be completely suppressed.
+# The default value is: YES.
+
+REPEAT_BRIEF           = YES
+
+# This tag implements a quasi-intelligent brief description abbreviator that is
+# used to form the text in various listings. Each string in this list, if found
+# as the leading text of the brief description, will be stripped from the text
+# and the result, after processing the whole list, is used as the annotated
+# text. Otherwise, the brief description is used as-is. If left blank, the
+# following values are used ($name is automatically replaced with the name of
+# the entity):The $name class, The $name widget, The $name file, is, provides,
+# specifies, contains, represents, a, an and the.
+
+ABBREVIATE_BRIEF       = "The $name class" \
+                         "The $name widget" \
+                         "The $name file" \
+                         is \
+                         provides \
+                         specifies \
+                         contains \
+                         represents \
+                         a \
+                         an \
+                         the
+
+# If the ALWAYS_DETAILED_SEC and REPEAT_BRIEF tags are both set to YES then
+# doxygen will generate a detailed section even if there is only a brief
+# description.
+# The default value is: NO.
+
+ALWAYS_DETAILED_SEC    = NO
+
+# If the INLINE_INHERITED_MEMB tag is set to YES, doxygen will show all
+# inherited members of a class in the documentation of that class as if those
+# members were ordinary class members. Constructors, destructors and assignment
+# operators of the base classes will not be shown.
+# The default value is: NO.
+
+INLINE_INHERITED_MEMB  = NO
+
+# If the FULL_PATH_NAMES tag is set to YES, doxygen will prepend the full path
+# before files name in the file list and in the header files. If set to NO the
+# shortest path that makes the file name unique will be used
+# The default value is: YES.
+
+FULL_PATH_NAMES        = YES
+
+# The STRIP_FROM_PATH tag can be used to strip a user-defined part of the path.
+# Stripping is only done if one of the specified strings matches the left-hand
+# part of the path. The tag can be used to show relative paths in the file list.
+# If left blank the directory from which doxygen is run is used as the path to
+# strip.
+#
+# Note that you can specify absolute paths here, but also relative paths, which
+# will be relative from the directory where doxygen is started.
+# This tag requires that the tag FULL_PATH_NAMES is set to YES.
+
+STRIP_FROM_PATH        =
+
+# The STRIP_FROM_INC_PATH tag can be used to strip a user-defined part of the
+# path mentioned in the documentation of a class, which tells the reader which
+# header file to include in order to use a class. If left blank only the name of
+# the header file containing the class definition is used. Otherwise one should
+# specify the list of include paths that are normally passed to the compiler
+# using the -I flag.
+
+STRIP_FROM_INC_PATH    =
+
+# If the SHORT_NAMES tag is set to YES, doxygen will generate much shorter (but
+# less readable) file names. This can be useful is your file systems doesn't
+# support long names like on DOS, Mac, or CD-ROM.
+# The default value is: NO.
+
+SHORT_NAMES            = NO
+
+# If the JAVADOC_AUTOBRIEF tag is set to YES then doxygen will interpret the
+# first line (until the first dot) of a Javadoc-style comment as the brief
+# description. If set to NO, the Javadoc-style will behave just like regular Qt-
+# style comments (thus requiring an explicit @brief command for a brief
+# description.)
+# The default value is: NO.
+
+JAVADOC_AUTOBRIEF      = NO
+
+# If the QT_AUTOBRIEF tag is set to YES then doxygen will interpret the first
+# line (until the first dot) of a Qt-style comment as the brief description. If
+# set to NO, the Qt-style will behave just like regular Qt-style comments (thus
+# requiring an explicit \brief command for a brief description.)
+# The default value is: NO.
+
+QT_AUTOBRIEF           = NO
+
+# The MULTILINE_CPP_IS_BRIEF tag can be set to YES to make doxygen treat a
+# multi-line C++ special comment block (i.e. a block of //! or /// comments) as
+# a brief description. This used to be the default behavior. The new default is
+# to treat a multi-line C++ comment block as a detailed description. Set this
+# tag to YES if you prefer the old behavior instead.
+#
+# Note that setting this tag to YES also means that rational rose comments are
+# not recognized any more.
+# The default value is: NO.
+
+MULTILINE_CPP_IS_BRIEF = NO
+
+# If the INHERIT_DOCS tag is set to YES then an undocumented member inherits the
+# documentation from any documented member that it re-implements.
+# The default value is: YES.
+
+INHERIT_DOCS           = YES
+
+# If the SEPARATE_MEMBER_PAGES tag is set to YES then doxygen will produce a new
+# page for each member. If set to NO, the documentation of a member will be part
+# of the file/class/namespace that contains it.
+# The default value is: NO.
+
+SEPARATE_MEMBER_PAGES  = NO
+
+# The TAB_SIZE tag can be used to set the number of spaces in a tab. Doxygen
+# uses this value to replace tabs by spaces in code fragments.
+# Minimum value: 1, maximum value: 16, default value: 4.
+
+TAB_SIZE               = 4
+
+# This tag can be used to specify a number of aliases that act as commands in
+# the documentation. An alias has the form:
+# name=value
+# For example adding
+# "sideeffect=@par Side Effects:\n"
+# will allow you to put the command \sideeffect (or @sideeffect) in the
+# documentation, which will result in a user-defined paragraph with heading
+# "Side Effects:". You can put \n's in the value part of an alias to insert
+# newlines.
+
+ALIASES                =
+
+# This tag can be used to specify a number of word-keyword mappings (TCL only).
+# A mapping has the form "name=value". For example adding "class=itcl::class"
+# will allow you to use the command class in the itcl::class meaning.
+
+TCL_SUBST              =
+
+# Set the OPTIMIZE_OUTPUT_FOR_C tag to YES if your project consists of C sources
+# only. Doxygen will then generate output that is more tailored for C. For
+# instance, some of the names that are used will be different. The list of all
+# members will be omitted, etc.
+# The default value is: NO.
+
+OPTIMIZE_OUTPUT_FOR_C  = NO
+
+# Set the OPTIMIZE_OUTPUT_JAVA tag to YES if your project consists of Java or
+# Python sources only. Doxygen will then generate output that is more tailored
+# for that language. For instance, namespaces will be presented as packages,
+# qualified scopes will look different, etc.
+# The default value is: NO.
+
+OPTIMIZE_OUTPUT_JAVA   = NO
+
+# Set the OPTIMIZE_FOR_FORTRAN tag to YES if your project consists of Fortran
+# sources. Doxygen will then generate output that is tailored for Fortran.
+# The default value is: NO.
+
+OPTIMIZE_FOR_FORTRAN   = NO
+
+# Set the OPTIMIZE_OUTPUT_VHDL tag to YES if your project consists of VHDL
+# sources. Doxygen will then generate output that is tailored for VHDL.
+# The default value is: NO.
+
+OPTIMIZE_OUTPUT_VHDL   = NO
+
+# Doxygen selects the parser to use depending on the extension of the files it
+# parses. With this tag you can assign which parser to use for a given
+# extension. Doxygen has a built-in mapping, but you can override or extend it
+# using this tag. The format is ext=language, where ext is a file extension, and
+# language is one of the parsers supported by doxygen: IDL, Java, Javascript,
+# C#, C, C++, D, PHP, Objective-C, Python, Fortran (fixed format Fortran:
+# FortranFixed, free formatted Fortran: FortranFree, unknown formatted Fortran:
+# Fortran. In the later case the parser tries to guess whether the code is fixed
+# or free formatted code, this is the default for Fortran type files), VHDL. For
+# instance to make doxygen treat .inc files as Fortran files (default is PHP),
+# and .f files as C (default is Fortran), use: inc=Fortran f=C.
+#
+# Note: For files without extension you can use no_extension as a placeholder.
+#
+# Note that for custom extensions you also need to set FILE_PATTERNS otherwise
+# the files are not read by doxygen.
+
+EXTENSION_MAPPING      =
+
+# If the MARKDOWN_SUPPORT tag is enabled then doxygen pre-processes all comments
+# according to the Markdown format, which allows for more readable
+# documentation. See http://daringfireball.net/projects/markdown/ for details.
+# The output of markdown processing is further processed by doxygen, so you can
+# mix doxygen, HTML, and XML commands with Markdown formatting. Disable only in
+# case of backward compatibilities issues.
+# The default value is: YES.
+
+MARKDOWN_SUPPORT       = YES
+
+# When the TOC_INCLUDE_HEADINGS tag is set to a non-zero value, all headings up
+# to that level are automatically included in the table of contents, even if
+# they do not have an id attribute.
+# Note: This feature currently applies only to Markdown headings.
+# Minimum value: 0, maximum value: 99, default value: 0.
+# This tag requires that the tag MARKDOWN_SUPPORT is set to YES.
+
+TOC_INCLUDE_HEADINGS   = 0
+
+# When enabled doxygen tries to link words that correspond to documented
+# classes, or namespaces to their corresponding documentation. Such a link can
+# be prevented in individual cases by putting a % sign in front of the word or
+# globally by setting AUTOLINK_SUPPORT to NO.
+# The default value is: YES.
+
+AUTOLINK_SUPPORT       = YES
+
+# If you use STL classes (i.e. std::string, std::vector, etc.) but do not want
+# to include (a tag file for) the STL sources as input, then you should set this
+# tag to YES in order to let doxygen match functions declarations and
+# definitions whose arguments contain STL classes (e.g. func(std::string);
+# versus func(std::string) {}). This also make the inheritance and collaboration
+# diagrams that involve STL classes more complete and accurate.
+# The default value is: NO.
+
+BUILTIN_STL_SUPPORT    = NO
+
+# If you use Microsoft's C++/CLI language, you should set this option to YES to
+# enable parsing support.
+# The default value is: NO.
+
+CPP_CLI_SUPPORT        = NO
+
+# Set the SIP_SUPPORT tag to YES if your project consists of sip (see:
+# http://www.riverbankcomputing.co.uk/software/sip/intro) sources only. Doxygen
+# will parse them like normal C++ but will assume all classes use public instead
+# of private inheritance when no explicit protection keyword is present.
+# The default value is: NO.
+
+SIP_SUPPORT            = NO
+
+# For Microsoft's IDL there are propget and propput attributes to indicate
+# getter and setter methods for a property. Setting this option to YES will make
+# doxygen to replace the get and set methods by a property in the documentation.
+# This will only work if the methods are indeed getting or setting a simple
+# type. If this is not the case, or you want to show the methods anyway, you
+# should set this option to NO.
+# The default value is: YES.
+
+IDL_PROPERTY_SUPPORT   = YES
+
+# If member grouping is used in the documentation and the DISTRIBUTE_GROUP_DOC
+# tag is set to YES then doxygen will reuse the documentation of the first
+# member in the group (if any) for the other members of the group. By default
+# all members of a group must be documented explicitly.
+# The default value is: NO.
+
+DISTRIBUTE_GROUP_DOC   = NO
+
+# If one adds a struct or class to a group and this option is enabled, then also
+# any nested class or struct is added to the same group. By default this option
+# is disabled and one has to add nested compounds explicitly via \ingroup.
+# The default value is: NO.
+
+GROUP_NESTED_COMPOUNDS = NO
+
+# Set the SUBGROUPING tag to YES to allow class member groups of the same type
+# (for instance a group of public functions) to be put as a subgroup of that
+# type (e.g. under the Public Functions section). Set it to NO to prevent
+# subgrouping. Alternatively, this can be done per class using the
+# \nosubgrouping command.
+# The default value is: YES.
+
+SUBGROUPING            = YES
+
+# When the INLINE_GROUPED_CLASSES tag is set to YES, classes, structs and unions
+# are shown inside the group in which they are included (e.g. using \ingroup)
+# instead of on a separate page (for HTML and Man pages) or section (for LaTeX
+# and RTF).
+#
+# Note that this feature does not work in combination with
+# SEPARATE_MEMBER_PAGES.
+# The default value is: NO.
+
+INLINE_GROUPED_CLASSES = NO
+
+# When the INLINE_SIMPLE_STRUCTS tag is set to YES, structs, classes, and unions
+# with only public data fields or simple typedef fields will be shown inline in
+# the documentation of the scope in which they are defined (i.e. file,
+# namespace, or group documentation), provided this scope is documented. If set
+# to NO, structs, classes, and unions are shown on a separate page (for HTML and
+# Man pages) or section (for LaTeX and RTF).
+# The default value is: NO.
+
+INLINE_SIMPLE_STRUCTS  = NO
+
+# When TYPEDEF_HIDES_STRUCT tag is enabled, a typedef of a struct, union, or
+# enum is documented as struct, union, or enum with the name of the typedef. So
+# typedef struct TypeS {} TypeT, will appear in the documentation as a struct
+# with name TypeT. When disabled the typedef will appear as a member of a file,
+# namespace, or class. And the struct will be named TypeS. This can typically be
+# useful for C code in case the coding convention dictates that all compound
+# types are typedef'ed and only the typedef is referenced, never the tag name.
+# The default value is: NO.
+
+TYPEDEF_HIDES_STRUCT   = NO
+
+# The size of the symbol lookup cache can be set using LOOKUP_CACHE_SIZE. This
+# cache is used to resolve symbols given their name and scope. Since this can be
+# an expensive process and often the same symbol appears multiple times in the
+# code, doxygen keeps a cache of pre-resolved symbols. If the cache is too small
+# doxygen will become slower. If the cache is too large, memory is wasted. The
+# cache size is given by this formula: 2^(16+LOOKUP_CACHE_SIZE). The valid range
+# is 0..9, the default is 0, corresponding to a cache size of 2^16=65536
+# symbols. At the end of a run doxygen will report the cache usage and suggest
+# the optimal cache size from a speed point of view.
+# Minimum value: 0, maximum value: 9, default value: 0.
+
+LOOKUP_CACHE_SIZE      = 0
+
+#---------------------------------------------------------------------------
+# Build related configuration options
+#---------------------------------------------------------------------------
+
+# If the EXTRACT_ALL tag is set to YES, doxygen will assume all entities in
+# documentation are documented, even if no documentation was available. Private
+# class members and static file members will be hidden unless the
+# EXTRACT_PRIVATE respectively EXTRACT_STATIC tags are set to YES.
+# Note: This will also disable the warnings about undocumented members that are
+# normally produced when WARNINGS is set to YES.
+# The default value is: NO.
+
+
+# If the EXTRACT_PRIVATE tag is set to YES, all private members of a class will
+# be included in the documentation.
+# The default value is: NO.
+
+EXTRACT_PRIVATE        = NO
+
+# If the EXTRACT_PACKAGE tag is set to YES, all members with package or internal
+# scope will be included in the documentation.
+# The default value is: NO.
+
+EXTRACT_PACKAGE        = NO
+
+# If the EXTRACT_STATIC tag is set to YES, all static members of a file will be
+# included in the documentation.
+# The default value is: NO.
+
+
+# If the EXTRACT_LOCAL_CLASSES tag is set to YES, classes (and structs) defined
+# locally in source files will be included in the documentation. If set to NO,
+# only classes defined in header files are included. Does not have any effect
+# for Java sources.
+# The default value is: YES.
+
+EXTRACT_LOCAL_CLASSES  = YES
+
+# This flag is only useful for Objective-C code. If set to YES, local methods,
+# which are defined in the implementation section but not in the interface are
+# included in the documentation. If set to NO, only methods in the interface are
+# included.
+# The default value is: NO.
+
+EXTRACT_LOCAL_METHODS  = NO
+
+# If this flag is set to YES, the members of anonymous namespaces will be
+# extracted and appear in the documentation as a namespace called
+# 'anonymous_namespace{file}', where file will be replaced with the base name of
+# the file that contains the anonymous namespace. By default anonymous namespace
+# are hidden.
+# The default value is: NO.
+
+EXTRACT_ANON_NSPACES   = NO
+
+# If the HIDE_UNDOC_MEMBERS tag is set to YES, doxygen will hide all
+# undocumented members inside documented classes or files. If set to NO these
+# members will be included in the various overviews, but no documentation
+# section is generated. This option has no effect if EXTRACT_ALL is enabled.
+# The default value is: NO.
+
+HIDE_UNDOC_MEMBERS     = NO
+
+# If the HIDE_UNDOC_CLASSES tag is set to YES, doxygen will hide all
+# undocumented classes that are normally visible in the class hierarchy. If set
+# to NO, these classes will be included in the various overviews. This option
+# has no effect if EXTRACT_ALL is enabled.
+# The default value is: NO.
+
+HIDE_UNDOC_CLASSES     = NO
+
+# If the HIDE_FRIEND_COMPOUNDS tag is set to YES, doxygen will hide all friend
+# (class|struct|union) declarations. If set to NO, these declarations will be
+# included in the documentation.
+# The default value is: NO.
+
+HIDE_FRIEND_COMPOUNDS  = NO
+
+# If the HIDE_IN_BODY_DOCS tag is set to YES, doxygen will hide any
+# documentation blocks found inside the body of a function. If set to NO, these
+# blocks will be appended to the function's detailed documentation block.
+# The default value is: NO.
+
+HIDE_IN_BODY_DOCS      = NO
+
+# The INTERNAL_DOCS tag determines if documentation that is typed after a
+# \internal command is included. If the tag is set to NO then the documentation
+# will be excluded. Set it to YES to include the internal documentation.
+# The default value is: NO.
+
+INTERNAL_DOCS          = NO
+
+# If the CASE_SENSE_NAMES tag is set to NO then doxygen will only generate file
+# names in lower-case letters. If set to YES, upper-case letters are also
+# allowed. This is useful if you have classes or files whose names only differ
+# in case and if your file system supports case sensitive file names. Windows
+# and Mac users are advised to set this option to NO.
+# The default value is: system dependent.
+
+CASE_SENSE_NAMES       = YES
+
+# If the HIDE_SCOPE_NAMES tag is set to NO then doxygen will show members with
+# their full class and namespace scopes in the documentation. If set to YES, the
+# scope will be hidden.
+# The default value is: NO.
+
+HIDE_SCOPE_NAMES       = NO
+
+# If the HIDE_COMPOUND_REFERENCE tag is set to NO (default) then doxygen will
+# append additional text to a page's title, such as Class Reference. If set to
+# YES the compound reference will be hidden.
+# The default value is: NO.
+
+HIDE_COMPOUND_REFERENCE= NO
+
+# If the SHOW_INCLUDE_FILES tag is set to YES then doxygen will put a list of
+# the files that are included by a file in the documentation of that file.
+# The default value is: YES.
+
+SHOW_INCLUDE_FILES     = YES
+
+# If the SHOW_GROUPED_MEMB_INC tag is set to YES then Doxygen will add for each
+# grouped member an include statement to the documentation, telling the reader
+# which file to include in order to use the member.
+# The default value is: NO.
+
+SHOW_GROUPED_MEMB_INC  = NO
+
+# If the FORCE_LOCAL_INCLUDES tag is set to YES then doxygen will list include
+# files with double quotes in the documentation rather than with sharp brackets.
+# The default value is: NO.
+
+FORCE_LOCAL_INCLUDES   = NO
+
+# If the INLINE_INFO tag is set to YES then a tag [inline] is inserted in the
+# documentation for inline members.
+# The default value is: YES.
+
+INLINE_INFO            = YES
+
+# If the SORT_MEMBER_DOCS tag is set to YES then doxygen will sort the
+# (detailed) documentation of file and class members alphabetically by member
+# name. If set to NO, the members will appear in declaration order.
+# The default value is: YES.
+
+SORT_MEMBER_DOCS       = YES
+
+# If the SORT_BRIEF_DOCS tag is set to YES then doxygen will sort the brief
+# descriptions of file, namespace and class members alphabetically by member
+# name. If set to NO, the members will appear in declaration order. Note that
+# this will also influence the order of the classes in the class list.
+# The default value is: NO.
+
+SORT_BRIEF_DOCS        = NO
+
+# If the SORT_MEMBERS_CTORS_1ST tag is set to YES then doxygen will sort the
+# (brief and detailed) documentation of class members so that constructors and
+# destructors are listed first. If set to NO the constructors will appear in the
+# respective orders defined by SORT_BRIEF_DOCS and SORT_MEMBER_DOCS.
+# Note: If SORT_BRIEF_DOCS is set to NO this option is ignored for sorting brief
+# member documentation.
+# Note: If SORT_MEMBER_DOCS is set to NO this option is ignored for sorting
+# detailed member documentation.
+# The default value is: NO.
+
+SORT_MEMBERS_CTORS_1ST = NO
+
+# If the SORT_GROUP_NAMES tag is set to YES then doxygen will sort the hierarchy
+# of group names into alphabetical order. If set to NO the group names will
+# appear in their defined order.
+# The default value is: NO.
+
+SORT_GROUP_NAMES       = NO
+
+# If the SORT_BY_SCOPE_NAME tag is set to YES, the class list will be sorted by
+# fully-qualified names, including namespaces. If set to NO, the class list will
+# be sorted only by class name, not including the namespace part.
+# Note: This option is not very useful if HIDE_SCOPE_NAMES is set to YES.
+# Note: This option applies only to the class list, not to the alphabetical
+# list.
+# The default value is: NO.
+
+SORT_BY_SCOPE_NAME     = NO
+
+# If the STRICT_PROTO_MATCHING option is enabled and doxygen fails to do proper
+# type resolution of all parameters of a function it will reject a match between
+# the prototype and the implementation of a member function even if there is
+# only one candidate or it is obvious which candidate to choose by doing a
+# simple string match. By disabling STRICT_PROTO_MATCHING doxygen will still
+# accept a match between prototype and implementation in such cases.
+# The default value is: NO.
+
+STRICT_PROTO_MATCHING  = NO
+
+# The GENERATE_TODOLIST tag can be used to enable (YES) or disable (NO) the todo
+# list. This list is created by putting \todo commands in the documentation.
+# The default value is: YES.
+
+GENERATE_TODOLIST      = YES
+
+# The GENERATE_TESTLIST tag can be used to enable (YES) or disable (NO) the test
+# list. This list is created by putting \test commands in the documentation.
+# The default value is: YES.
+
+GENERATE_TESTLIST      = YES
+
+# The GENERATE_BUGLIST tag can be used to enable (YES) or disable (NO) the bug
+# list. This list is created by putting \bug commands in the documentation.
+# The default value is: YES.
+
+GENERATE_BUGLIST       = YES
+
+# The GENERATE_DEPRECATEDLIST tag can be used to enable (YES) or disable (NO)
+# the deprecated list. This list is created by putting \deprecated commands in
+# the documentation.
+# The default value is: YES.
+
+GENERATE_DEPRECATEDLIST= YES
+
+# The ENABLED_SECTIONS tag can be used to enable conditional documentation
+# sections, marked by \if <section_label> ... \endif and \cond <section_label>
+# ... \endcond blocks.
+
+ENABLED_SECTIONS       =
+
+# The MAX_INITIALIZER_LINES tag determines the maximum number of lines that the
+# initial value of a variable or macro / define can have for it to appear in the
+# documentation. If the initializer consists of more lines than specified here
+# it will be hidden. Use a value of 0 to hide initializers completely. The
+# appearance of the value of individual variables and macros / defines can be
+# controlled using \showinitializer or \hideinitializer command in the
+# documentation regardless of this setting.
+# Minimum value: 0, maximum value: 10000, default value: 30.
+
+MAX_INITIALIZER_LINES  = 30
+
+# Set the SHOW_USED_FILES tag to NO to disable the list of files generated at
+# the bottom of the documentation of classes and structs. If set to YES, the
+# list will mention the files that were used to generate the documentation.
+# The default value is: YES.
+
+SHOW_USED_FILES        = YES
+
+# Set the SHOW_FILES tag to NO to disable the generation of the Files page. This
+# will remove the Files entry from the Quick Index and from the Folder Tree View
+# (if specified).
+# The default value is: YES.
+
+SHOW_FILES             = YES
+
+# Set the SHOW_NAMESPACES tag to NO to disable the generation of the Namespaces
+# page. This will remove the Namespaces entry from the Quick Index and from the
+# Folder Tree View (if specified).
+# The default value is: YES.
+
+SHOW_NAMESPACES        = YES
+
+# The FILE_VERSION_FILTER tag can be used to specify a program or script that
+# doxygen should invoke to get the current version for each file (typically from
+# the version control system). Doxygen will invoke the program by executing (via
+# popen()) the command command input-file, where command is the value of the
+# FILE_VERSION_FILTER tag, and input-file is the name of an input file provided
+# by doxygen. Whatever the program writes to standard output is used as the file
+# version. For an example see the documentation.
+
+FILE_VERSION_FILTER    =
+
+# The LAYOUT_FILE tag can be used to specify a layout file which will be parsed
+# by doxygen. The layout file controls the global structure of the generated
+# output files in an output format independent way. To create the layout file
+# that represents doxygen's defaults, run doxygen with the -l option. You can
+# optionally specify a file name after the option, if omitted DoxygenLayout.xml
+# will be used as the name of the layout file.
+#
+# Note that if you run doxygen from a directory containing a file called
+# DoxygenLayout.xml, doxygen will parse it automatically even if the LAYOUT_FILE
+# tag is left empty.
+
+LAYOUT_FILE            =
+
+# The CITE_BIB_FILES tag can be used to specify one or more bib files containing
+# the reference definitions. This must be a list of .bib files. The .bib
+# extension is automatically appended if omitted. This requires the bibtex tool
+# to be installed. See also http://en.wikipedia.org/wiki/BibTeX for more info.
+# For LaTeX the style of the bibliography can be controlled using
+# LATEX_BIB_STYLE. To use this feature you need bibtex and perl available in the
+# search path. See also \cite for info how to create references.
+
+CITE_BIB_FILES         =
+
+#---------------------------------------------------------------------------
+# Configuration options related to warning and progress messages
+#---------------------------------------------------------------------------
+
+# The QUIET tag can be used to turn on/off the messages that are generated to
+# standard output by doxygen. If QUIET is set to YES this implies that the
+# messages are off.
+# The default value is: NO.
+
+QUIET                  = NO
+
+# The WARNINGS tag can be used to turn on/off the warning messages that are
+# generated to standard error (stderr) by doxygen. If WARNINGS is set to YES
+# this implies that the warnings are on.
+#
+# Tip: Turn warnings on while writing the documentation.
+# The default value is: YES.
+
+WARNINGS               = YES
+
+# If the WARN_IF_UNDOCUMENTED tag is set to YES then doxygen will generate
+# warnings for undocumented members. If EXTRACT_ALL is set to YES then this flag
+# will automatically be disabled.
+# The default value is: YES.
+
+WARN_IF_UNDOCUMENTED   = YES
+
+# If the WARN_IF_DOC_ERROR tag is set to YES, doxygen will generate warnings for
+# potential errors in the documentation, such as not documenting some parameters
+# in a documented function, or documenting parameters that don't exist or using
+# markup commands wrongly.
+# The default value is: YES.
+
+WARN_IF_DOC_ERROR      = YES
+
+# This WARN_NO_PARAMDOC option can be enabled to get warnings for functions that
+# are documented, but have no documentation for their parameters or return
+# value. If set to NO, doxygen will only warn about wrong or incomplete
+# parameter documentation, but not about the absence of documentation.
+# The default value is: NO.
+
+WARN_NO_PARAMDOC       = NO
+
+# If the WARN_AS_ERROR tag is set to YES then doxygen will immediately stop when
+# a warning is encountered.
+# The default value is: NO.
+
+WARN_AS_ERROR          = NO
+
+# The WARN_FORMAT tag determines the format of the warning messages that doxygen
+# can produce. The string should contain the $file, $line, and $text tags, which
+# will be replaced by the file and line number from which the warning originated
+# and the warning text. Optionally the format may contain $version, which will
+# be replaced by the version of the file (if it could be obtained via
+# FILE_VERSION_FILTER)
+# The default value is: $file:$line: $text.
+
+WARN_FORMAT            = "$file:$line: $text"
+
+# The WARN_LOGFILE tag can be used to specify a file to which warning and error
+# messages should be written. If left blank the output is written to standard
+# error (stderr).
+
+WARN_LOGFILE           =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the input files
+#---------------------------------------------------------------------------
+
+# The INPUT tag is used to specify the files and/or directories that contain
+# documented source files. You may enter file names like myfile.cpp or
+# directories like /usr/src/myproject. Separate the files or directories with
+# spaces. See also FILE_PATTERNS and EXTENSION_MAPPING
+# Note: If this tag is empty the current directory is searched.
+
+
+# This tag can be used to specify the character encoding of the source files
+# that doxygen parses. Internally doxygen uses the UTF-8 encoding. Doxygen uses
+# libiconv (or the iconv built into libc) for the transcoding. See the libiconv
+# documentation (see: http://www.gnu.org/software/libiconv) for the list of
+# possible encodings.
+# The default value is: UTF-8.
+
+INPUT_ENCODING         = UTF-8
+
+# If the value of the INPUT tag contains directories, you can use the
+# FILE_PATTERNS tag to specify one or more wildcard patterns (like *.cpp and
+# *.h) to filter out the source-files in the directories.
+#
+# Note that for custom extensions or not directly supported extensions you also
+# need to set EXTENSION_MAPPING for the extension otherwise the files are not
+# read by doxygen.
+#
+# If left blank the following patterns are tested:*.c, *.cc, *.cxx, *.cpp,
+# *.c++, *.java, *.ii, *.ixx, *.ipp, *.i++, *.inl, *.idl, *.ddl, *.odl, *.h,
+# *.hh, *.hxx, *.hpp, *.h++, *.cs, *.d, *.php, *.php4, *.php5, *.phtml, *.inc,
+# *.m, *.markdown, *.md, *.mm, *.dox, *.py, *.pyw, *.f90, *.f95, *.f03, *.f08,
+# *.f, *.for, *.tcl, *.vhd, *.vhdl, *.ucf and *.qsf.
+
+FILE_PATTERNS          = *.c \
+                         *.cc \
+                         *.cxx \
+                         *.cpp \
+                         *.c++ \
+                         *.java \
+                         *.ii \
+                         *.ixx \
+                         *.ipp \
+                         *.i++ \
+                         *.inl \
+                         *.idl \
+                         *.ddl \
+                         *.odl \
+                         *.h \
+                         *.hh \
+                         *.hxx \
+                         *.hpp \
+                         *.h++ \
+                         *.cs \
+                         *.d \
+                         *.php \
+                         *.php4 \
+                         *.php5 \
+                         *.phtml \
+                         *.inc \
+                         *.m \
+                         *.markdown \
+                         *.md \
+                         *.mm \
+                         *.dox \
+                         *.py \
+                         *.pyw \
+                         *.f90 \
+                         *.f95 \
+                         *.f03 \
+                         *.f08 \
+                         *.f \
+                         *.for \
+                         *.tcl \
+                         *.vhd \
+                         *.vhdl \
+                         *.ucf \
+                         *.qsf
+
+# The RECURSIVE tag can be used to specify whether or not subdirectories should
+# be searched for input files as well.
+# The default value is: NO.
+
+RECURSIVE              = NO
+
+# The EXCLUDE tag can be used to specify files and/or directories that should be
+# excluded from the INPUT source files. This way you can easily exclude a
+# subdirectory from a directory tree whose root is specified with the INPUT tag.
+#
+# Note that relative paths are relative to the directory from which doxygen is
+# run.
+
+EXCLUDE                =
+
+# The EXCLUDE_SYMLINKS tag can be used to select whether or not files or
+# directories that are symbolic links (a Unix file system feature) are excluded
+# from the input.
+# The default value is: NO.
+
+EXCLUDE_SYMLINKS       = NO
+
+# If the value of the INPUT tag contains directories, you can use the
+# EXCLUDE_PATTERNS tag to specify one or more wildcard patterns to exclude
+# certain files from those directories.
+#
+# Note that the wildcards are matched against the file with absolute path, so to
+# exclude all test directories for example use the pattern */test/*
+
+EXCLUDE_PATTERNS       =
+
+# The EXCLUDE_SYMBOLS tag can be used to specify one or more symbol names
+# (namespaces, classes, functions, etc.) that should be excluded from the
+# output. The symbol name can be a fully qualified name, a word, or if the
+# wildcard * is used, a substring. Examples: ANamespace, AClass,
+# AClass::ANamespace, ANamespace::*Test
+#
+# Note that the wildcards are matched against the file with absolute path, so to
+# exclude all test directories use the pattern */test/*
+
+EXCLUDE_SYMBOLS        =
+
+# The EXAMPLE_PATH tag can be used to specify one or more files or directories
+# that contain example code fragments that are included (see the \include
+# command).
+
+EXAMPLE_PATH           =
+
+# If the value of the EXAMPLE_PATH tag contains directories, you can use the
+# EXAMPLE_PATTERNS tag to specify one or more wildcard pattern (like *.cpp and
+# *.h) to filter out the source-files in the directories. If left blank all
+# files are included.
+
+EXAMPLE_PATTERNS       = *
+
+# If the EXAMPLE_RECURSIVE tag is set to YES then subdirectories will be
+# searched for input files to be used with the \include or \dontinclude commands
+# irrespective of the value of the RECURSIVE tag.
+# The default value is: NO.
+
+EXAMPLE_RECURSIVE      = NO
+
+# The IMAGE_PATH tag can be used to specify one or more files or directories
+# that contain images that are to be included in the documentation (see the
+# \image command).
+
+IMAGE_PATH             =
+
+# The INPUT_FILTER tag can be used to specify a program that doxygen should
+# invoke to filter for each input file. Doxygen will invoke the filter program
+# by executing (via popen()) the command:
+#
+# <filter> <input-file>
+#
+# where <filter> is the value of the INPUT_FILTER tag, and <input-file> is the
+# name of an input file. Doxygen will then use the output that the filter
+# program writes to standard output. If FILTER_PATTERNS is specified, this tag
+# will be ignored.
+#
+# Note that the filter must not add or remove lines; it is applied before the
+# code is scanned, but not when the output code is generated. If lines are added
+# or removed, the anchors will not be placed correctly.
+#
+# Note that for custom extensions or not directly supported extensions you also
+# need to set EXTENSION_MAPPING for the extension otherwise the files are not
+# properly processed by doxygen.
+
+INPUT_FILTER           =
+
+# The FILTER_PATTERNS tag can be used to specify filters on a per file pattern
+# basis. Doxygen will compare the file name with each pattern and apply the
+# filter if there is a match. The filters are a list of the form: pattern=filter
+# (like *.cpp=my_cpp_filter). See INPUT_FILTER for further information on how
+# filters are used. If the FILTER_PATTERNS tag is empty or if none of the
+# patterns match the file name, INPUT_FILTER is applied.
+#
+# Note that for custom extensions or not directly supported extensions you also
+# need to set EXTENSION_MAPPING for the extension otherwise the files are not
+# properly processed by doxygen.
+
+FILTER_PATTERNS        =
+
+# If the FILTER_SOURCE_FILES tag is set to YES, the input filter (if set using
+# INPUT_FILTER) will also be used to filter the input files that are used for
+# producing the source files to browse (i.e. when SOURCE_BROWSER is set to YES).
+# The default value is: NO.
+
+FILTER_SOURCE_FILES    = NO
+
+# The FILTER_SOURCE_PATTERNS tag can be used to specify source filters per file
+# pattern. A pattern will override the setting for FILTER_PATTERN (if any) and
+# it is also possible to disable source filtering for a specific pattern using
+# *.ext= (so without naming a filter).
+# This tag requires that the tag FILTER_SOURCE_FILES is set to YES.
+
+FILTER_SOURCE_PATTERNS =
+
+#---------------------------------------------------------------------------
+# Configuration options related to source browsing
+#---------------------------------------------------------------------------
+
+# If the SOURCE_BROWSER tag is set to YES then a list of source files will be
+# generated. Documented entities will be cross-referenced with these sources.
+#
+# Note: To get rid of all source code in the generated output, make sure that
+# also VERBATIM_HEADERS is set to NO.
+# The default value is: NO.
+
+SOURCE_BROWSER         = NO
+
+# Setting the INLINE_SOURCES tag to YES will include the body of functions,
+# classes and enums directly into the documentation.
+# The default value is: NO.
+
+INLINE_SOURCES         = NO
+
+# Setting the STRIP_CODE_COMMENTS tag to YES will instruct doxygen to hide any
+# special comment blocks from generated source code fragments. Normal C, C++ and
+# Fortran comments will always remain visible.
+# The default value is: YES.
+
+STRIP_CODE_COMMENTS    = YES
+
+# If the REFERENCED_BY_RELATION tag is set to YES then for each documented
+# function all documented functions referencing it will be listed.
+# The default value is: NO.
+
+REFERENCED_BY_RELATION = NO
+
+# If the REFERENCES_RELATION tag is set to YES then for each documented function
+# all documented entities called/used by that function will be listed.
+# The default value is: NO.
+
+REFERENCES_RELATION    = NO
+
+# If the REFERENCES_LINK_SOURCE tag is set to YES and SOURCE_BROWSER tag is set
+# to YES then the hyperlinks from functions in REFERENCES_RELATION and
+# REFERENCED_BY_RELATION lists will link to the source code. Otherwise they will
+# link to the documentation.
+# The default value is: YES.
+
+REFERENCES_LINK_SOURCE = YES
+
+# If SOURCE_TOOLTIPS is enabled (the default) then hovering a hyperlink in the
+# source code will show a tooltip with additional information such as prototype,
+# brief description and links to the definition and documentation. Since this
+# will make the HTML file larger and loading of large files a bit slower, you
+# can opt to disable this feature.
+# The default value is: YES.
+# This tag requires that the tag SOURCE_BROWSER is set to YES.
+
+SOURCE_TOOLTIPS        = YES
+
+# If the USE_HTAGS tag is set to YES then the references to source code will
+# point to the HTML generated by the htags(1) tool instead of doxygen built-in
+# source browser. The htags tool is part of GNU's global source tagging system
+# (see http://www.gnu.org/software/global/global.html). You will need version
+# 4.8.6 or higher.
+#
+# To use it do the following:
+# - Install the latest version of global
+# - Enable SOURCE_BROWSER and USE_HTAGS in the config file
+# - Make sure the INPUT points to the root of the source tree
+# - Run doxygen as normal
+#
+# Doxygen will invoke htags (and that will in turn invoke gtags), so these
+# tools must be available from the command line (i.e. in the search path).
+#
+# The result: instead of the source browser generated by doxygen, the links to
+# source code will now point to the output of htags.
+# The default value is: NO.
+# This tag requires that the tag SOURCE_BROWSER is set to YES.
+
+USE_HTAGS              = NO
+
+# If the VERBATIM_HEADERS tag is set the YES then doxygen will generate a
+# verbatim copy of the header file for each class for which an include is
+# specified. Set to NO to disable this.
+# See also: Section \class.
+# The default value is: YES.
+
+VERBATIM_HEADERS       = YES
+
+# If the CLANG_ASSISTED_PARSING tag is set to YES then doxygen will use the
+# clang parser (see: http://clang.llvm.org/) for more accurate parsing at the
+# cost of reduced performance. This can be particularly helpful with template
+# rich C++ code for which doxygen's built-in parser lacks the necessary type
+# information.
+# Note: The availability of this option depends on whether or not doxygen was
+# generated with the -Duse-libclang=ON option for CMake.
+# The default value is: NO.
+
+
+# If clang assisted parsing is enabled you can provide the compiler with command
+# line options that you would normally use when invoking the compiler. Note that
+# the include paths will already be set by doxygen for the files and directories
+# specified with INPUT and INCLUDE_PATH.
+# This tag requires that the tag CLANG_ASSISTED_PARSING is set to YES.
+
+
+#---------------------------------------------------------------------------
+# Configuration options related to the alphabetical class index
+#---------------------------------------------------------------------------
+
+# If the ALPHABETICAL_INDEX tag is set to YES, an alphabetical index of all
+# compounds will be generated. Enable this if the project contains a lot of
+# classes, structs, unions or interfaces.
+# The default value is: YES.
+
+ALPHABETICAL_INDEX     = YES
+
+# The COLS_IN_ALPHA_INDEX tag can be used to specify the number of columns in
+# which the alphabetical index list will be split.
+# Minimum value: 1, maximum value: 20, default value: 5.
+# This tag requires that the tag ALPHABETICAL_INDEX is set to YES.
+
+COLS_IN_ALPHA_INDEX    = 5
+
+# In case all classes in a project start with a common prefix, all classes will
+# be put under the same header in the alphabetical index. The IGNORE_PREFIX tag
+# can be used to specify a prefix (or a list of prefixes) that should be ignored
+# while generating the index headers.
+# This tag requires that the tag ALPHABETICAL_INDEX is set to YES.
+
+IGNORE_PREFIX          =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the HTML output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_HTML tag is set to YES, doxygen will generate HTML output
+# The default value is: YES.
+
+GENERATE_HTML          = YES
+
+# The HTML_OUTPUT tag is used to specify where the HTML docs will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it.
+# The default directory is: html.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_OUTPUT            = html
+
+# The HTML_FILE_EXTENSION tag can be used to specify the file extension for each
+# generated HTML page (for example: .htm, .php, .asp).
+# The default value is: .html.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_FILE_EXTENSION    = .html
+
+# The HTML_HEADER tag can be used to specify a user-defined HTML header file for
+# each generated HTML page. If the tag is left blank doxygen will generate a
+# standard header.
+#
+# To get valid HTML the header file that includes any scripts and style sheets
+# that doxygen needs, which is dependent on the configuration options used (e.g.
+# the setting GENERATE_TREEVIEW). It is highly recommended to start with a
+# default header using
+# doxygen -w html new_header.html new_footer.html new_stylesheet.css
+# YourConfigFile
+# and then modify the file new_header.html. See also section "Doxygen usage"
+# for information on how to generate the default header that doxygen normally
+# uses.
+# Note: The header is subject to change so you typically have to regenerate the
+# default header when upgrading to a newer version of doxygen. For a description
+# of the possible markers and block names see the documentation.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_HEADER            =
+
+# The HTML_FOOTER tag can be used to specify a user-defined HTML footer for each
+# generated HTML page. If the tag is left blank doxygen will generate a standard
+# footer. See HTML_HEADER for more information on how to generate a default
+# footer and what special commands can be used inside the footer. See also
+# section "Doxygen usage" for information on how to generate the default footer
+# that doxygen normally uses.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_FOOTER            =
+
+# The HTML_STYLESHEET tag can be used to specify a user-defined cascading style
+# sheet that is used by each HTML page. It can be used to fine-tune the look of
+# the HTML output. If left blank doxygen will generate a default style sheet.
+# See also section "Doxygen usage" for information on how to generate the style
+# sheet that doxygen normally uses.
+# Note: It is recommended to use HTML_EXTRA_STYLESHEET instead of this tag, as
+# it is more robust and this tag (HTML_STYLESHEET) will in the future become
+# obsolete.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_STYLESHEET        =
+
+# The HTML_EXTRA_STYLESHEET tag can be used to specify additional user-defined
+# cascading style sheets that are included after the standard style sheets
+# created by doxygen. Using this option one can overrule certain style aspects.
+# This is preferred over using HTML_STYLESHEET since it does not replace the
+# standard style sheet and is therefore more robust against future updates.
+# Doxygen will copy the style sheet files to the output directory.
+# Note: The order of the extra style sheet files is of importance (e.g. the last
+# style sheet in the list overrules the setting of the previous ones in the
+# list). For an example see the documentation.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_EXTRA_STYLESHEET  =
+
+# The HTML_EXTRA_FILES tag can be used to specify one or more extra images or
+# other source files which should be copied to the HTML output directory. Note
+# that these files will be copied to the base HTML output directory. Use the
+# $relpath^ marker in the HTML_HEADER and/or HTML_FOOTER files to load these
+# files. In the HTML_STYLESHEET file, use the file name only. Also note that the
+# files will be copied as-is; there are no commands or markers available.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_EXTRA_FILES       =
+
+# The HTML_COLORSTYLE_SAT tag controls the purity (or saturation) of the colors
+# in the HTML output. For a value of 0 the output will use grayscales only. A
+# value of 255 will produce the most vivid colors.
+# Minimum value: 0, maximum value: 255, default value: 100.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_COLORSTYLE_SAT    = 100
+
+# The HTML_COLORSTYLE_GAMMA tag controls the gamma correction applied to the
+# luminance component of the colors in the HTML output. Values below 100
+# gradually make the output lighter, whereas values above 100 make the output
+# darker. The value divided by 100 is the actual gamma applied, so 80 represents
+# a gamma of 0.8, The value 220 represents a gamma of 2.2, and 100 does not
+# change the gamma.
+# Minimum value: 40, maximum value: 240, default value: 80.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_COLORSTYLE_GAMMA  = 80
+
+# If the HTML_TIMESTAMP tag is set to YES then the footer of each generated HTML
+# page will contain the date and time when the page was generated. Setting this
+# to YES can help to show when doxygen was last run and thus if the
+# documentation is up to date.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_TIMESTAMP         = NO
+
+# If the HTML_DYNAMIC_SECTIONS tag is set to YES then the generated HTML
+# documentation will contain sections that can be hidden and shown after the
+# page has loaded.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_DYNAMIC_SECTIONS  = NO
+
+# With HTML_INDEX_NUM_ENTRIES one can control the preferred number of entries
+# shown in the various tree structured indices initially; the user can expand
+# and collapse entries dynamically later on. Doxygen will expand the tree to
+# such a level that at most the specified number of entries are visible (unless
+# a fully collapsed tree already exceeds this amount). So setting the number of
+# entries 1 will produce a full collapsed tree by default. 0 is a special value
+# representing an infinite number of entries and will result in a full expanded
+# tree by default.
+# Minimum value: 0, maximum value: 9999, default value: 100.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_INDEX_NUM_ENTRIES = 100
+
+# If the GENERATE_DOCSET tag is set to YES, additional index files will be
+# generated that can be used as input for Apple's Xcode 3 integrated development
+# environment (see: http://developer.apple.com/tools/xcode/), introduced with
+# OSX 10.5 (Leopard). To create a documentation set, doxygen will generate a
+# Makefile in the HTML output directory. Running make will produce the docset in
+# that directory and running make install will install the docset in
+# ~/Library/Developer/Shared/Documentation/DocSets so that Xcode will find it at
+# startup. See http://developer.apple.com/tools/creatingdocsetswithdoxygen.html
+# for more information.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_DOCSET        = NO
+
+# This tag determines the name of the docset feed. A documentation feed provides
+# an umbrella under which multiple documentation sets from a single provider
+# (such as a company or product suite) can be grouped.
+# The default value is: Doxygen generated docs.
+# This tag requires that the tag GENERATE_DOCSET is set to YES.
+
+DOCSET_FEEDNAME        = "Doxygen generated docs"
+
+# This tag specifies a string that should uniquely identify the documentation
+# set bundle. This should be a reverse domain-name style string, e.g.
+# com.mycompany.MyDocSet. Doxygen will append .docset to the name.
+# The default value is: org.doxygen.Project.
+# This tag requires that the tag GENERATE_DOCSET is set to YES.
+
+DOCSET_BUNDLE_ID       = org.doxygen.Project
+
+# The DOCSET_PUBLISHER_ID tag specifies a string that should uniquely identify
+# the documentation publisher. This should be a reverse domain-name style
+# string, e.g. com.mycompany.MyDocSet.documentation.
+# The default value is: org.doxygen.Publisher.
+# This tag requires that the tag GENERATE_DOCSET is set to YES.
+
+DOCSET_PUBLISHER_ID    = org.doxygen.Publisher
+
+# The DOCSET_PUBLISHER_NAME tag identifies the documentation publisher.
+# The default value is: Publisher.
+# This tag requires that the tag GENERATE_DOCSET is set to YES.
+
+DOCSET_PUBLISHER_NAME  = Publisher
+
+# If the GENERATE_HTMLHELP tag is set to YES then doxygen generates three
+# additional HTML index files: index.hhp, index.hhc, and index.hhk. The
+# index.hhp is a project file that can be read by Microsoft's HTML Help Workshop
+# (see: http://www.microsoft.com/en-us/download/details.aspx?id=21138) on
+# Windows.
+#
+# The HTML Help Workshop contains a compiler that can convert all HTML output
+# generated by doxygen into a single compiled HTML file (.chm). Compiled HTML
+# files are now used as the Windows 98 help format, and will replace the old
+# Windows help format (.hlp) on all Windows platforms in the future. Compressed
+# HTML files also contain an index, a table of contents, and you can search for
+# words in the documentation. The HTML workshop also contains a viewer for
+# compressed HTML files.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_HTMLHELP      = NO
+
+# The CHM_FILE tag can be used to specify the file name of the resulting .chm
+# file. You can add a path in front of the file if the result should not be
+# written to the html output directory.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+CHM_FILE               =
+
+# The HHC_LOCATION tag can be used to specify the location (absolute path
+# including file name) of the HTML help compiler (hhc.exe). If non-empty,
+# doxygen will try to run the HTML help compiler on the generated index.hhp.
+# The file has to be specified with full path.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+HHC_LOCATION           =
+
+# The GENERATE_CHI flag controls if a separate .chi index file is generated
+# (YES) or that it should be included in the master .chm file (NO).
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+GENERATE_CHI           = NO
+
+# The CHM_INDEX_ENCODING is used to encode HtmlHelp index (hhk), content (hhc)
+# and project file content.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+CHM_INDEX_ENCODING     =
+
+# The BINARY_TOC flag controls whether a binary table of contents is generated
+# (YES) or a normal table of contents (NO) in the .chm file. Furthermore it
+# enables the Previous and Next buttons.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+BINARY_TOC             = NO
+
+# The TOC_EXPAND flag can be set to YES to add extra items for group members to
+# the table of contents of the HTML help documentation and to the tree view.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+TOC_EXPAND             = NO
+
+# If the GENERATE_QHP tag is set to YES and both QHP_NAMESPACE and
+# QHP_VIRTUAL_FOLDER are set, an additional index file will be generated that
+# can be used as input for Qt's qhelpgenerator to generate a Qt Compressed Help
+# (.qch) of the generated HTML documentation.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_QHP           = NO
+
+# If the QHG_LOCATION tag is specified, the QCH_FILE tag can be used to specify
+# the file name of the resulting .qch file. The path specified is relative to
+# the HTML output folder.
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QCH_FILE               =
+
+# The QHP_NAMESPACE tag specifies the namespace to use when generating Qt Help
+# Project output. For more information please see Qt Help Project / Namespace
+# (see: http://qt-project.org/doc/qt-4.8/qthelpproject.html#namespace).
+# The default value is: org.doxygen.Project.
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_NAMESPACE          = org.doxygen.Project
+
+# The QHP_VIRTUAL_FOLDER tag specifies the namespace to use when generating Qt
+# Help Project output. For more information please see Qt Help Project / Virtual
+# Folders (see: http://qt-project.org/doc/qt-4.8/qthelpproject.html#virtual-
+# folders).
+# The default value is: doc.
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_VIRTUAL_FOLDER     = doc
+
+# If the QHP_CUST_FILTER_NAME tag is set, it specifies the name of a custom
+# filter to add. For more information please see Qt Help Project / Custom
+# Filters (see: http://qt-project.org/doc/qt-4.8/qthelpproject.html#custom-
+# filters).
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_CUST_FILTER_NAME   =
+
+# The QHP_CUST_FILTER_ATTRS tag specifies the list of the attributes of the
+# custom filter to add. For more information please see Qt Help Project / Custom
+# Filters (see: http://qt-project.org/doc/qt-4.8/qthelpproject.html#custom-
+# filters).
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_CUST_FILTER_ATTRS  =
+
+# The QHP_SECT_FILTER_ATTRS tag specifies the list of the attributes this
+# project's filter section matches. Qt Help Project / Filter Attributes (see:
+# http://qt-project.org/doc/qt-4.8/qthelpproject.html#filter-attributes).
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_SECT_FILTER_ATTRS  =
+
+# The QHG_LOCATION tag can be used to specify the location of Qt's
+# qhelpgenerator. If non-empty doxygen will try to run qhelpgenerator on the
+# generated .qhp file.
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHG_LOCATION           =
+
+# If the GENERATE_ECLIPSEHELP tag is set to YES, additional index files will be
+# generated, together with the HTML files, they form an Eclipse help plugin. To
+# install this plugin and make it available under the help contents menu in
+# Eclipse, the contents of the directory containing the HTML and XML files needs
+# to be copied into the plugins directory of eclipse. The name of the directory
+# within the plugins directory should be the same as the ECLIPSE_DOC_ID value.
+# After copying Eclipse needs to be restarted before the help appears.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_ECLIPSEHELP   = NO
+
+# A unique identifier for the Eclipse help plugin. When installing the plugin
+# the directory name containing the HTML and XML files should also have this
+# name. Each documentation set should have its own identifier.
+# The default value is: org.doxygen.Project.
+# This tag requires that the tag GENERATE_ECLIPSEHELP is set to YES.
+
+ECLIPSE_DOC_ID         = org.doxygen.Project
+
+# If you want full control over the layout of the generated HTML pages it might
+# be necessary to disable the index and replace it with your own. The
+# DISABLE_INDEX tag can be used to turn on/off the condensed index (tabs) at top
+# of each HTML page. A value of NO enables the index and the value YES disables
+# it. Since the tabs in the index contain the same information as the navigation
+# tree, you can set this option to YES if you also set GENERATE_TREEVIEW to YES.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+DISABLE_INDEX          = NO
+
+# The GENERATE_TREEVIEW tag is used to specify whether a tree-like index
+# structure should be generated to display hierarchical information. If the tag
+# value is set to YES, a side panel will be generated containing a tree-like
+# index structure (just like the one that is generated for HTML Help). For this
+# to work a browser that supports JavaScript, DHTML, CSS and frames is required
+# (i.e. any modern browser). Windows users are probably better off using the
+# HTML help feature. Via custom style sheets (see HTML_EXTRA_STYLESHEET) one can
+# further fine-tune the look of the index. As an example, the default style
+# sheet generated by doxygen has an example that shows how to put an image at
+# the root of the tree instead of the PROJECT_NAME. Since the tree basically has
+# the same information as the tab index, you could consider setting
+# DISABLE_INDEX to YES when enabling this option.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_TREEVIEW      = NO
+
+# The ENUM_VALUES_PER_LINE tag can be used to set the number of enum values that
+# doxygen will group on one line in the generated HTML documentation.
+#
+# Note that a value of 0 will completely suppress the enum values from appearing
+# in the overview section.
+# Minimum value: 0, maximum value: 20, default value: 4.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+ENUM_VALUES_PER_LINE   = 4
+
+# If the treeview is enabled (see GENERATE_TREEVIEW) then this tag can be used
+# to set the initial width (in pixels) of the frame in which the tree is shown.
+# Minimum value: 0, maximum value: 1500, default value: 250.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+TREEVIEW_WIDTH         = 250
+
+# If the EXT_LINKS_IN_WINDOW option is set to YES, doxygen will open links to
+# external symbols imported via tag files in a separate window.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+EXT_LINKS_IN_WINDOW    = NO
+
+# Use this tag to change the font size of LaTeX formulas included as images in
+# the HTML documentation. When you change the font size after a successful
+# doxygen run you need to manually remove any form_*.png images from the HTML
+# output directory to force them to be regenerated.
+# Minimum value: 8, maximum value: 50, default value: 10.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+FORMULA_FONTSIZE       = 10
+
+# Use the FORMULA_TRANPARENT tag to determine whether or not the images
+# generated for formulas are transparent PNGs. Transparent PNGs are not
+# supported properly for IE 6.0, but are supported on all modern browsers.
+#
+# Note that when changing this option you need to delete any form_*.png files in
+# the HTML output directory before the changes have effect.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+FORMULA_TRANSPARENT    = YES
+
+# Enable the USE_MATHJAX option to render LaTeX formulas using MathJax (see
+# http://www.mathjax.org) which uses client side Javascript for the rendering
+# instead of using pre-rendered bitmaps. Use this if you do not have LaTeX
+# installed or if you want to formulas look prettier in the HTML output. When
+# enabled you may also need to install MathJax separately and configure the path
+# to it using the MATHJAX_RELPATH option.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+USE_MATHJAX            = NO
+
+# When MathJax is enabled you can set the default output format to be used for
+# the MathJax output. See the MathJax site (see:
+# http://docs.mathjax.org/en/latest/output.html) for more details.
+# Possible values are: HTML-CSS (which is slower, but has the best
+# compatibility), NativeMML (i.e. MathML) and SVG.
+# The default value is: HTML-CSS.
+# This tag requires that the tag USE_MATHJAX is set to YES.
+
+MATHJAX_FORMAT         = HTML-CSS
+
+# When MathJax is enabled you need to specify the location relative to the HTML
+# output directory using the MATHJAX_RELPATH option. The destination directory
+# should contain the MathJax.js script. For instance, if the mathjax directory
+# is located at the same level as the HTML output directory, then
+# MATHJAX_RELPATH should be ../mathjax. The default value points to the MathJax
+# Content Delivery Network so you can quickly see the result without installing
+# MathJax. However, it is strongly recommended to install a local copy of
+# MathJax from http://www.mathjax.org before deployment.
+# The default value is: http://cdn.mathjax.org/mathjax/latest.
+# This tag requires that the tag USE_MATHJAX is set to YES.
+
+MATHJAX_RELPATH        = http://cdn.mathjax.org/mathjax/latest
+
+# The MATHJAX_EXTENSIONS tag can be used to specify one or more MathJax
+# extension names that should be enabled during MathJax rendering. For example
+# MATHJAX_EXTENSIONS = TeX/AMSmath TeX/AMSsymbols
+# This tag requires that the tag USE_MATHJAX is set to YES.
+
+MATHJAX_EXTENSIONS     =
+
+# The MATHJAX_CODEFILE tag can be used to specify a file with javascript pieces
+# of code that will be used on startup of the MathJax code. See the MathJax site
+# (see: http://docs.mathjax.org/en/latest/output.html) for more details. For an
+# example see the documentation.
+# This tag requires that the tag USE_MATHJAX is set to YES.
+
+MATHJAX_CODEFILE       =
+
+# When the SEARCHENGINE tag is enabled doxygen will generate a search box for
+# the HTML output. The underlying search engine uses javascript and DHTML and
+# should work on any modern browser. Note that when using HTML help
+# (GENERATE_HTMLHELP), Qt help (GENERATE_QHP), or docsets (GENERATE_DOCSET)
+# there is already a search function so this one should typically be disabled.
+# For large projects the javascript based search engine can be slow, then
+# enabling SERVER_BASED_SEARCH may provide a better solution. It is possible to
+# search using the keyboard; to jump to the search box use <access key> + S
+# (what the <access key> is depends on the OS and browser, but it is typically
+# <CTRL>, <ALT>/<option>, or both). Inside the search box use the <cursor down
+# key> to jump into the search results window, the results can be navigated
+# using the <cursor keys>. Press <Enter> to select an item or <escape> to cancel
+# the search. The filter options can be selected when the cursor is inside the
+# search box by pressing <Shift>+<cursor down>. Also here use the <cursor keys>
+# to select a filter and <Enter> or <escape> to activate or cancel the filter
+# option.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+SEARCHENGINE           = YES
+
+# When the SERVER_BASED_SEARCH tag is enabled the search engine will be
+# implemented using a web server instead of a web client using Javascript. There
+# are two flavors of web server based searching depending on the EXTERNAL_SEARCH
+# setting. When disabled, doxygen will generate a PHP script for searching and
+# an index file used by the script. When EXTERNAL_SEARCH is enabled the indexing
+# and searching needs to be provided by external tools. See the section
+# "External Indexing and Searching" for details.
+# The default value is: NO.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+SERVER_BASED_SEARCH    = NO
+
+# When EXTERNAL_SEARCH tag is enabled doxygen will no longer generate the PHP
+# script for searching. Instead the search results are written to an XML file
+# which needs to be processed by an external indexer. Doxygen will invoke an
+# external search engine pointed to by the SEARCHENGINE_URL option to obtain the
+# search results.
+#
+# Doxygen ships with an example indexer (doxyindexer) and search engine
+# (doxysearch.cgi) which are based on the open source search engine library
+# Xapian (see: http://xapian.org/).
+#
+# See the section "External Indexing and Searching" for details.
+# The default value is: NO.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+EXTERNAL_SEARCH        = NO
+
+# The SEARCHENGINE_URL should point to a search engine hosted by a web server
+# which will return the search results when EXTERNAL_SEARCH is enabled.
+#
+# Doxygen ships with an example indexer (doxyindexer) and search engine
+# (doxysearch.cgi) which are based on the open source search engine library
+# Xapian (see: http://xapian.org/). See the section "External Indexing and
+# Searching" for details.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+SEARCHENGINE_URL       =
+
+# When SERVER_BASED_SEARCH and EXTERNAL_SEARCH are both enabled the unindexed
+# search data is written to a file for indexing by an external tool. With the
+# SEARCHDATA_FILE tag the name of this file can be specified.
+# The default file is: searchdata.xml.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+SEARCHDATA_FILE        = searchdata.xml
+
+# When SERVER_BASED_SEARCH and EXTERNAL_SEARCH are both enabled the
+# EXTERNAL_SEARCH_ID tag can be used as an identifier for the project. This is
+# useful in combination with EXTRA_SEARCH_MAPPINGS to search through multiple
+# projects and redirect the results back to the right project.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+EXTERNAL_SEARCH_ID     =
+
+# The EXTRA_SEARCH_MAPPINGS tag can be used to enable searching through doxygen
+# projects other than the one defined by this configuration file, but that are
+# all added to the same external search index. Each project needs to have a
+# unique id set via EXTERNAL_SEARCH_ID. The search mapping then maps the id of
+# to a relative location where the documentation can be found. The format is:
+# EXTRA_SEARCH_MAPPINGS = tagname1=loc1 tagname2=loc2 ...
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+EXTRA_SEARCH_MAPPINGS  =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the LaTeX output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_LATEX tag is set to YES, doxygen will generate LaTeX output.
+# The default value is: YES.
+
+GENERATE_LATEX         = YES
+
+# The LATEX_OUTPUT tag is used to specify where the LaTeX docs will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it.
+# The default directory is: latex.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_OUTPUT           = latex
+
+# The LATEX_CMD_NAME tag can be used to specify the LaTeX command name to be
+# invoked.
+#
+# Note that when enabling USE_PDFLATEX this option is only used for generating
+# bitmaps for formulas in the HTML output, but not in the Makefile that is
+# written to the output directory.
+# The default file is: latex.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_CMD_NAME         = latex
+
+# The MAKEINDEX_CMD_NAME tag can be used to specify the command name to generate
+# index for LaTeX.
+# The default file is: makeindex.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+MAKEINDEX_CMD_NAME     = makeindex
+
+# If the COMPACT_LATEX tag is set to YES, doxygen generates more compact LaTeX
+# documents. This may be useful for small projects and may help to save some
+# trees in general.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+COMPACT_LATEX          = NO
+
+# The PAPER_TYPE tag can be used to set the paper type that is used by the
+# printer.
+# Possible values are: a4 (210 x 297 mm), letter (8.5 x 11 inches), legal (8.5 x
+# 14 inches) and executive (7.25 x 10.5 inches).
+# The default value is: a4.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+PAPER_TYPE             = a4
+
+# The EXTRA_PACKAGES tag can be used to specify one or more LaTeX package names
+# that should be included in the LaTeX output. The package can be specified just
+# by its name or with the correct syntax as to be used with the LaTeX
+# \usepackage command. To get the times font for instance you can specify :
+# EXTRA_PACKAGES=times or EXTRA_PACKAGES={times}
+# To use the option intlimits with the amsmath package you can specify:
+# EXTRA_PACKAGES=[intlimits]{amsmath}
+# If left blank no extra packages will be included.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+EXTRA_PACKAGES         =
+
+# The LATEX_HEADER tag can be used to specify a personal LaTeX header for the
+# generated LaTeX document. The header should contain everything until the first
+# chapter. If it is left blank doxygen will generate a standard header. See
+# section "Doxygen usage" for information on how to let doxygen write the
+# default header to a separate file.
+#
+# Note: Only use a user-defined header if you know what you are doing! The
+# following commands have a special meaning inside the header: $title,
+# $datetime, $date, $doxygenversion, $projectname, $projectnumber,
+# $projectbrief, $projectlogo. Doxygen will replace $title with the empty
+# string, for the replacement values of the other commands the user is referred
+# to HTML_HEADER.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_HEADER           =
+
+# The LATEX_FOOTER tag can be used to specify a personal LaTeX footer for the
+# generated LaTeX document. The footer should contain everything after the last
+# chapter. If it is left blank doxygen will generate a standard footer. See
+# LATEX_HEADER for more information on how to generate a default footer and what
+# special commands can be used inside the footer.
+#
+# Note: Only use a user-defined footer if you know what you are doing!
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_FOOTER           =
+
+# The LATEX_EXTRA_STYLESHEET tag can be used to specify additional user-defined
+# LaTeX style sheets that are included after the standard style sheets created
+# by doxygen. Using this option one can overrule certain style aspects. Doxygen
+# will copy the style sheet files to the output directory.
+# Note: The order of the extra style sheet files is of importance (e.g. the last
+# style sheet in the list overrules the setting of the previous ones in the
+# list).
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_EXTRA_STYLESHEET =
+
+# The LATEX_EXTRA_FILES tag can be used to specify one or more extra images or
+# other source files which should be copied to the LATEX_OUTPUT output
+# directory. Note that the files will be copied as-is; there are no commands or
+# markers available.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_EXTRA_FILES      =
+
+# If the PDF_HYPERLINKS tag is set to YES, the LaTeX that is generated is
+# prepared for conversion to PDF (using ps2pdf or pdflatex). The PDF file will
+# contain links (just like the HTML output) instead of page references. This
+# makes the output suitable for online browsing using a PDF viewer.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+PDF_HYPERLINKS         = YES
+
+# If the USE_PDFLATEX tag is set to YES, doxygen will use pdflatex to generate
+# the PDF file directly from the LaTeX files. Set this option to YES, to get a
+# higher quality PDF documentation.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+USE_PDFLATEX           = YES
+
+# If the LATEX_BATCHMODE tag is set to YES, doxygen will add the \batchmode
+# command to the generated LaTeX files. This will instruct LaTeX to keep running
+# if errors occur, instead of asking the user for help. This option is also used
+# when generating formulas in HTML.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_BATCHMODE        = NO
+
+# If the LATEX_HIDE_INDICES tag is set to YES then doxygen will not include the
+# index chapters (such as File Index, Compound Index, etc.) in the output.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_HIDE_INDICES     = NO
+
+# If the LATEX_SOURCE_CODE tag is set to YES then doxygen will include source
+# code with syntax highlighting in the LaTeX output.
+#
+# Note that which sources are shown also depends on other settings such as
+# SOURCE_BROWSER.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_SOURCE_CODE      = NO
+
+# The LATEX_BIB_STYLE tag can be used to specify the style to use for the
+# bibliography, e.g. plainnat, or ieeetr. See
+# http://en.wikipedia.org/wiki/BibTeX and \cite for more info.
+# The default value is: plain.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_BIB_STYLE        = plain
+
+# If the LATEX_TIMESTAMP tag is set to YES then the footer of each generated
+# page will contain the date and time when the page was generated. Setting this
+# to NO can help when comparing the output of multiple runs.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_TIMESTAMP        = NO
+
+#---------------------------------------------------------------------------
+# Configuration options related to the RTF output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_RTF tag is set to YES, doxygen will generate RTF output. The
+# RTF output is optimized for Word 97 and may not look too pretty with other RTF
+# readers/editors.
+# The default value is: NO.
+
+GENERATE_RTF           = NO
+
+# The RTF_OUTPUT tag is used to specify where the RTF docs will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it.
+# The default directory is: rtf.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+RTF_OUTPUT             = rtf
+
+# If the COMPACT_RTF tag is set to YES, doxygen generates more compact RTF
+# documents. This may be useful for small projects and may help to save some
+# trees in general.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+COMPACT_RTF            = NO
+
+# If the RTF_HYPERLINKS tag is set to YES, the RTF that is generated will
+# contain hyperlink fields. The RTF file will contain links (just like the HTML
+# output) instead of page references. This makes the output suitable for online
+# browsing using Word or some other Word compatible readers that support those
+# fields.
+#
+# Note: WordPad (write) and others do not support links.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+RTF_HYPERLINKS         = NO
+
+# Load stylesheet definitions from file. Syntax is similar to doxygen's config
+# file, i.e. a series of assignments. You only have to provide replacements,
+# missing definitions are set to their default value.
+#
+# See also section "Doxygen usage" for information on how to generate the
+# default style sheet that doxygen normally uses.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+RTF_STYLESHEET_FILE    =
+
+# Set optional variables used in the generation of an RTF document. Syntax is
+# similar to doxygen's config file. A template extensions file can be generated
+# using doxygen -e rtf extensionFile.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+RTF_EXTENSIONS_FILE    =
+
+# If the RTF_SOURCE_CODE tag is set to YES then doxygen will include source code
+# with syntax highlighting in the RTF output.
+#
+# Note that which sources are shown also depends on other settings such as
+# SOURCE_BROWSER.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+RTF_SOURCE_CODE        = NO
+
+#---------------------------------------------------------------------------
+# Configuration options related to the man page output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_MAN tag is set to YES, doxygen will generate man pages for
+# classes and files.
+# The default value is: NO.
+
+GENERATE_MAN           = NO
+
+# The MAN_OUTPUT tag is used to specify where the man pages will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it. A directory man3 will be created inside the directory specified by
+# MAN_OUTPUT.
+# The default directory is: man.
+# This tag requires that the tag GENERATE_MAN is set to YES.
+
+MAN_OUTPUT             = man
+
+# The MAN_EXTENSION tag determines the extension that is added to the generated
+# man pages. In case the manual section does not start with a number, the number
+# 3 is prepended. The dot (.) at the beginning of the MAN_EXTENSION tag is
+# optional.
+# The default value is: .3.
+# This tag requires that the tag GENERATE_MAN is set to YES.
+
+MAN_EXTENSION          = .3
+
+# The MAN_SUBDIR tag determines the name of the directory created within
+# MAN_OUTPUT in which the man pages are placed. If defaults to man followed by
+# MAN_EXTENSION with the initial . removed.
+# This tag requires that the tag GENERATE_MAN is set to YES.
+
+MAN_SUBDIR             =
+
+# If the MAN_LINKS tag is set to YES and doxygen generates man output, then it
+# will generate one additional man file for each entity documented in the real
+# man page(s). These additional files only source the real man page, but without
+# them the man command would be unable to find the correct page.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_MAN is set to YES.
+
+MAN_LINKS              = NO
+
+#---------------------------------------------------------------------------
+# Configuration options related to the XML output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_XML tag is set to YES, doxygen will generate an XML file that
+# captures the structure of the code including all documentation.
+# The default value is: NO.
+
+GENERATE_XML           = NO
+
+# The XML_OUTPUT tag is used to specify where the XML pages will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it.
+# The default directory is: xml.
+# This tag requires that the tag GENERATE_XML is set to YES.
+
+XML_OUTPUT             = xml
+
+# If the XML_PROGRAMLISTING tag is set to YES, doxygen will dump the program
+# listings (including syntax highlighting and cross-referencing information) to
+# the XML output. Note that enabling this will significantly increase the size
+# of the XML output.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_XML is set to YES.
+
+XML_PROGRAMLISTING     = YES
+
+#---------------------------------------------------------------------------
+# Configuration options related to the DOCBOOK output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_DOCBOOK tag is set to YES, doxygen will generate Docbook files
+# that can be used to generate PDF.
+# The default value is: NO.
+
+GENERATE_DOCBOOK       = NO
+
+# The DOCBOOK_OUTPUT tag is used to specify where the Docbook pages will be put.
+# If a relative path is entered the value of OUTPUT_DIRECTORY will be put in
+# front of it.
+# The default directory is: docbook.
+# This tag requires that the tag GENERATE_DOCBOOK is set to YES.
+
+DOCBOOK_OUTPUT         = docbook
+
+# If the DOCBOOK_PROGRAMLISTING tag is set to YES, doxygen will include the
+# program listings (including syntax highlighting and cross-referencing
+# information) to the DOCBOOK output. Note that enabling this will significantly
+# increase the size of the DOCBOOK output.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_DOCBOOK is set to YES.
+
+DOCBOOK_PROGRAMLISTING = NO
+
+#---------------------------------------------------------------------------
+# Configuration options for the AutoGen Definitions output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_AUTOGEN_DEF tag is set to YES, doxygen will generate an
+# AutoGen Definitions (see http://autogen.sf.net) file that captures the
+# structure of the code including all documentation. Note that this feature is
+# still experimental and incomplete at the moment.
+# The default value is: NO.
+
+GENERATE_AUTOGEN_DEF   = NO
+
+#---------------------------------------------------------------------------
+# Configuration options related to the Perl module output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_PERLMOD tag is set to YES, doxygen will generate a Perl module
+# file that captures the structure of the code including all documentation.
+#
+# Note that this feature is still experimental and incomplete at the moment.
+# The default value is: NO.
+
+GENERATE_PERLMOD       = NO
+
+# If the PERLMOD_LATEX tag is set to YES, doxygen will generate the necessary
+# Makefile rules, Perl scripts and LaTeX code to be able to generate PDF and DVI
+# output from the Perl module output.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_PERLMOD is set to YES.
+
+PERLMOD_LATEX          = NO
+
+# If the PERLMOD_PRETTY tag is set to YES, the Perl module output will be nicely
+# formatted so it can be parsed by a human reader. This is useful if you want to
+# understand what is going on. On the other hand, if this tag is set to NO, the
+# size of the Perl module output will be much smaller and Perl will parse it
+# just the same.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_PERLMOD is set to YES.
+
+PERLMOD_PRETTY         = YES
+
+# The names of the make variables in the generated doxyrules.make file are
+# prefixed with the string contained in PERLMOD_MAKEVAR_PREFIX. This is useful
+# so different doxyrules.make files included by the same Makefile don't
+# overwrite each other's variables.
+# This tag requires that the tag GENERATE_PERLMOD is set to YES.
+
+PERLMOD_MAKEVAR_PREFIX =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the preprocessor
+#---------------------------------------------------------------------------
+
+# If the ENABLE_PREPROCESSING tag is set to YES, doxygen will evaluate all
+# C-preprocessor directives found in the sources and include files.
+# The default value is: YES.
+
+
+# If the EXPAND_ONLY_PREDEF and MACRO_EXPANSION tags are both set to YES then
+# the macro expansion is limited to the macros specified with the PREDEFINED and
+# EXPAND_AS_DEFINED tags.
+# The default value is: NO.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+
+
+# The PREDEFINED tag can be used to specify one or more macro names that are
+# defined before the preprocessor is started (similar to the -D option of e.g.
+# gcc). The argument of the tag is a list of macros of the form: name or
+# name=definition (no spaces). If the definition and the "=" are omitted, "=1"
+# is assumed. To prevent a macro definition from being undefined via #undef or
+# recursively expanded use the := operator instead of the = operator.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+
+# If the MACRO_EXPANSION and EXPAND_ONLY_PREDEF tags are set to YES then this
+# tag can be used to specify a list of macro names that should be expanded. The
+# macro definition that is found in the sources will be used. Use the PREDEFINED
+# tag if you want to use a different macro definition that overrules the
+# definition found in the source code.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+
+# If the SKIP_FUNCTION_MACROS tag is set to YES then doxygen's preprocessor will
+# remove all references to function-like macros that are alone on a line, have
+# an all uppercase name, and do not end with a semicolon. Such function macros
+# are typically used for boiler-plate code, and will confuse the parser if not
+# removed.
+# The default value is: YES.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+
+#---------------------------------------------------------------------------
+# Configuration options related to external references
+#---------------------------------------------------------------------------
+
+# The TAGFILES tag can be used to specify one or more tag files. For each tag
+# file the location of the external documentation should be added. The format of
+# a tag file without this location is as follows:
+# TAGFILES = file1 file2 ...
+# Adding location for the tag files is done as follows:
+# TAGFILES = file1=loc1 "file2 = loc2" ...
+# where loc1 and loc2 can be relative or absolute paths or URLs. See the
+# section "Linking to external documentation" for more information about the use
+# of tag files.
+# Note: Each tag file must have a unique name (where the name does NOT include
+# the path). If a tag file is not located in the directory in which doxygen is
+# run, you must also specify the path to the tagfile here.
+
+TAGFILES               =
+
+# When a file name is specified after GENERATE_TAGFILE, doxygen will create a
+# tag file that is based on the input files it reads. See section "Linking to
+# external documentation" for more information about the usage of tag files.
+
+GENERATE_TAGFILE       =
+
+# If the ALLEXTERNALS tag is set to YES, all external class will be listed in
+# the class index. If set to NO, only the inherited external classes will be
+# listed.
+# The default value is: NO.
+
+ALLEXTERNALS           = NO
+
+# If the EXTERNAL_GROUPS tag is set to YES, all external groups will be listed
+# in the modules index. If set to NO, only the current project's groups will be
+# listed.
+# The default value is: YES.
+
+EXTERNAL_GROUPS        = YES
+
+# If the EXTERNAL_PAGES tag is set to YES, all external pages will be listed in
+# the related pages index. If set to NO, only the current project's pages will
+# be listed.
+# The default value is: YES.
+
+EXTERNAL_PAGES         = YES
+
+# The PERL_PATH should be the absolute path and name of the perl script
+# interpreter (i.e. the result of 'which perl').
+# The default file (with absolute path) is: /usr/bin/perl.
+
+PERL_PATH              = /usr/bin/perl
+
+#---------------------------------------------------------------------------
+# Configuration options related to the dot tool
+#---------------------------------------------------------------------------
+
+# If the CLASS_DIAGRAMS tag is set to YES, doxygen will generate a class diagram
+# (in HTML and LaTeX) for classes with base or super classes. Setting the tag to
+# NO turns the diagrams off. Note that this option also works with HAVE_DOT
+# disabled, but it is recommended to install and use dot, since it yields more
+# powerful graphs.
+# The default value is: YES.
+
+CLASS_DIAGRAMS         = YES
+
+# You can define message sequence charts within doxygen comments using the \msc
+# command. Doxygen will then run the mscgen tool (see:
+# http://www.mcternan.me.uk/mscgen/)) to produce the chart and insert it in the
+# documentation. The MSCGEN_PATH tag allows you to specify the directory where
+# the mscgen tool resides. If left empty the tool is assumed to be found in the
+# default search path.
+
+MSCGEN_PATH            =
+
+# You can include diagrams made with dia in doxygen documentation. Doxygen will
+# then run dia to produce the diagram and insert it in the documentation. The
+# DIA_PATH tag allows you to specify the directory where the dia binary resides.
+# If left empty dia is assumed to be found in the default search path.
+
+DIA_PATH               =
+
+# If set to YES the inheritance and collaboration graphs will hide inheritance
+# and usage relations if the target is undocumented or is not a class.
+# The default value is: YES.
+
+HIDE_UNDOC_RELATIONS   = YES
+
+# If you set the HAVE_DOT tag to YES then doxygen will assume the dot tool is
+# available from the path. This tool is part of Graphviz (see:
+# http://www.graphviz.org/), a graph visualization toolkit from AT&T and Lucent
+# Bell Labs. The other options in this section have no effect if this option is
+# set to NO
+# The default value is: YES.
+
+HAVE_DOT               = YES
+
+# The DOT_NUM_THREADS specifies the number of dot invocations doxygen is allowed
+# to run in parallel. When set to 0 doxygen will base this on the number of
+# processors available in the system. You can set it explicitly to a value
+# larger than 0 to get control over the balance between CPU load and processing
+# speed.
+# Minimum value: 0, maximum value: 32, default value: 0.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_NUM_THREADS        = 0
+
+# When you want a differently looking font in the dot files that doxygen
+# generates you can specify the font name using DOT_FONTNAME. You need to make
+# sure dot is able to find the font, which can be done by putting it in a
+# standard location or by setting the DOTFONTPATH environment variable or by
+# setting DOT_FONTPATH to the directory containing the font.
+# The default value is: Helvetica.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_FONTNAME           = Helvetica
+
+# The DOT_FONTSIZE tag can be used to set the size (in points) of the font of
+# dot graphs.
+# Minimum value: 4, maximum value: 24, default value: 10.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_FONTSIZE           = 10
+
+# By default doxygen will tell dot to use the default font as specified with
+# DOT_FONTNAME. If you specify a different font using DOT_FONTNAME you can set
+# the path where dot can find it using this tag.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_FONTPATH           =
+
+# If the CLASS_GRAPH tag is set to YES then doxygen will generate a graph for
+# each documented class showing the direct and indirect inheritance relations.
+# Setting this tag to YES will force the CLASS_DIAGRAMS tag to NO.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+CLASS_GRAPH            = YES
+
+# If the COLLABORATION_GRAPH tag is set to YES then doxygen will generate a
+# graph for each documented class showing the direct and indirect implementation
+# dependencies (inheritance, containment, and class references variables) of the
+# class with other documented classes.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+COLLABORATION_GRAPH    = YES
+
+# If the GROUP_GRAPHS tag is set to YES then doxygen will generate a graph for
+# groups, showing the direct groups dependencies.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+GROUP_GRAPHS           = YES
+
+# If the UML_LOOK tag is set to YES, doxygen will generate inheritance and
+# collaboration diagrams in a style similar to the OMG's Unified Modeling
+# Language.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+UML_LOOK               = NO
+
+# If the UML_LOOK tag is enabled, the fields and methods are shown inside the
+# class node. If there are many fields or methods and many nodes the graph may
+# become too big to be useful. The UML_LIMIT_NUM_FIELDS threshold limits the
+# number of items for each type to make the size more manageable. Set this to 0
+# for no limit. Note that the threshold may be exceeded by 50% before the limit
+# is enforced. So when you set the threshold to 10, up to 15 fields may appear,
+# but if the number exceeds 15, the total amount of fields shown is limited to
+# 10.
+# Minimum value: 0, maximum value: 100, default value: 10.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+UML_LIMIT_NUM_FIELDS   = 10
+
+# If the TEMPLATE_RELATIONS tag is set to YES then the inheritance and
+# collaboration graphs will show the relations between templates and their
+# instances.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+TEMPLATE_RELATIONS     = NO
+
+# If the INCLUDE_GRAPH, ENABLE_PREPROCESSING and SEARCH_INCLUDES tags are set to
+# YES then doxygen will generate a graph for each documented file showing the
+# direct and indirect include dependencies of the file with other documented
+# files.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+INCLUDE_GRAPH          = YES
+
+# If the INCLUDED_BY_GRAPH, ENABLE_PREPROCESSING and SEARCH_INCLUDES tags are
+# set to YES then doxygen will generate a graph for each documented file showing
+# the direct and indirect include dependencies of the file with other documented
+# files.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+INCLUDED_BY_GRAPH      = YES
+
+# If the CALL_GRAPH tag is set to YES then doxygen will generate a call
+# dependency graph for every global function or class method.
+#
+# Note that enabling this option will significantly increase the time of a run.
+# So in most cases it will be better to enable call graphs for selected
+# functions only using the \callgraph command. Disabling a call graph can be
+# accomplished by means of the command \hidecallgraph.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+CALL_GRAPH             = NO
+
+# If the CALLER_GRAPH tag is set to YES then doxygen will generate a caller
+# dependency graph for every global function or class method.
+#
+# Note that enabling this option will significantly increase the time of a run.
+# So in most cases it will be better to enable caller graphs for selected
+# functions only using the \callergraph command. Disabling a caller graph can be
+# accomplished by means of the command \hidecallergraph.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+CALLER_GRAPH           = NO
+
+# If the GRAPHICAL_HIERARCHY tag is set to YES then doxygen will graphical
+# hierarchy of all classes instead of a textual one.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+GRAPHICAL_HIERARCHY    = YES
+
+# If the DIRECTORY_GRAPH tag is set to YES then doxygen will show the
+# dependencies a directory has on other directories in a graphical way. The
+# dependency relations are determined by the #include relations between the
+# files in the directories.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DIRECTORY_GRAPH        = YES
+
+# The DOT_IMAGE_FORMAT tag can be used to set the image format of the images
+# generated by dot. For an explanation of the image formats see the section
+# output formats in the documentation of the dot tool (Graphviz (see:
+# http://www.graphviz.org/)).
+# Note: If you choose svg you need to set HTML_FILE_EXTENSION to xhtml in order
+# to make the SVG files visible in IE 9+ (other browsers do not have this
+# requirement).
+# Possible values are: png, png:cairo, png:cairo:cairo, png:cairo:gd, png:gd,
+# png:gd:gd, jpg, jpg:cairo, jpg:cairo:gd, jpg:gd, jpg:gd:gd, gif, gif:cairo,
+# gif:cairo:gd, gif:gd, gif:gd:gd, svg, png:gd, png:gd:gd, png:cairo,
+# png:cairo:gd, png:cairo:cairo, png:cairo:gdiplus, png:gdiplus and
+# png:gdiplus:gdiplus.
+# The default value is: png.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_IMAGE_FORMAT       = png
+
+# If DOT_IMAGE_FORMAT is set to svg, then this option can be set to YES to
+# enable generation of interactive SVG images that allow zooming and panning.
+#
+# Note that this requires a modern browser other than Internet Explorer. Tested
+# and working are Firefox, Chrome, Safari, and Opera.
+# Note: For IE 9+ you need to set HTML_FILE_EXTENSION to xhtml in order to make
+# the SVG files visible. Older versions of IE do not have SVG support.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+INTERACTIVE_SVG        = NO
+
+# The DOT_PATH tag can be used to specify the path where the dot tool can be
+# found. If left blank, it is assumed the dot tool can be found in the path.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_PATH               =
+
+# The DOTFILE_DIRS tag can be used to specify one or more directories that
+# contain dot files that are included in the documentation (see the \dotfile
+# command).
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOTFILE_DIRS           =
+
+# The MSCFILE_DIRS tag can be used to specify one or more directories that
+# contain msc files that are included in the documentation (see the \mscfile
+# command).
+
+MSCFILE_DIRS           =
+
+# The DIAFILE_DIRS tag can be used to specify one or more directories that
+# contain dia files that are included in the documentation (see the \diafile
+# command).
+
+DIAFILE_DIRS           =
+
+# When using plantuml, the PLANTUML_JAR_PATH tag should be used to specify the
+# path where java can find the plantuml.jar file. If left blank, it is assumed
+# PlantUML is not used or called during a preprocessing step. Doxygen will
+# generate a warning when it encounters a \startuml command in this case and
+# will not generate output for the diagram.
+
+PLANTUML_JAR_PATH      =
+
+# When using plantuml, the PLANTUML_CFG_FILE tag can be used to specify a
+# configuration file for plantuml.
+
+PLANTUML_CFG_FILE      =
+
+# When using plantuml, the specified paths are searched for files specified by
+# the !include statement in a plantuml block.
+
+PLANTUML_INCLUDE_PATH  =
+
+# The DOT_GRAPH_MAX_NODES tag can be used to set the maximum number of nodes
+# that will be shown in the graph. If the number of nodes in a graph becomes
+# larger than this value, doxygen will truncate the graph, which is visualized
+# by representing a node as a red box. Note that doxygen if the number of direct
+# children of the root node in a graph is already larger than
+# DOT_GRAPH_MAX_NODES then the graph will not be shown at all. Also note that
+# the size of a graph can be further restricted by MAX_DOT_GRAPH_DEPTH.
+# Minimum value: 0, maximum value: 10000, default value: 50.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_GRAPH_MAX_NODES    = 50
+
+# The MAX_DOT_GRAPH_DEPTH tag can be used to set the maximum depth of the graphs
+# generated by dot. A depth value of 3 means that only nodes reachable from the
+# root by following a path via at most 3 edges will be shown. Nodes that lay
+# further from the root node will be omitted. Note that setting this option to 1
+# or 2 may greatly reduce the computation time needed for large code bases. Also
+# note that the size of a graph can be further restricted by
+# DOT_GRAPH_MAX_NODES. Using a depth of 0 means no depth restriction.
+# Minimum value: 0, maximum value: 1000, default value: 0.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+MAX_DOT_GRAPH_DEPTH    = 0
+
+# Set the DOT_TRANSPARENT tag to YES to generate images with a transparent
+# background. This is disabled by default, because dot on Windows does not seem
+# to support this out of the box.
+#
+# Warning: Depending on the platform used, enabling this option may lead to
+# badly anti-aliased labels on the edges of a graph (i.e. they become hard to
+# read).
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_TRANSPARENT        = NO
+
+# Set the DOT_MULTI_TARGETS tag to YES to allow dot to generate multiple output
+# files in one run (i.e. multiple -o and -T options on the command line). This
+# makes dot run faster, but since only newer versions of dot (>1.8.10) support
+# this, this feature is disabled by default.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_MULTI_TARGETS      = NO
+
+# If the GENERATE_LEGEND tag is set to YES doxygen will generate a legend page
+# explaining the meaning of the various boxes and arrows in the dot generated
+# graphs.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+GENERATE_LEGEND        = YES
+
+# If the DOT_CLEANUP tag is set to YES, doxygen will remove the intermediate dot
+# files that are used to generate the various graphs.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_CLEANUP            = YES
diff --git a/Makefile b/Makefile
index 4912f17e1..191e07a93 100644
--- a/Makefile
+++ b/Makefile
@@ -2,6 +2,8 @@
 # We provide a minimalistic version called minirake inside of our
 # codebase.
 
+-include Makefile.doc
+
 RAKE = ruby ./minirake
 
 all :
@@ -12,6 +14,6 @@ test : all
 	$(RAKE) test
 .PHONY : test
 
-clean :
+clean : docsclean
 	$(RAKE) clean
 .PHONY : clean
diff --git a/Makefile.doc b/Makefile.doc
new file mode 100644
index 000000000..cf95c187f
--- /dev/null
+++ b/Makefile.doc
@@ -0,0 +1,15 @@
+SRCS=$(shell find src -name '*.c')
+HEADERS=$(shell find include -name '*.h')
+MDDOCS=$(shell find doc -name '*.md')
+
+doxygen : Doxyfile $(SRCS) $(HEADERS) $(MDDOCS)
+	doxygen Doxyfile
+
+docs : doxygen
+
+docserver : docs
+	firefox doxygen/html/index.html 
+
+docsclean :
+	rm -r doxygen
+.PHONY : docserver docsclean
diff --git a/doc/guides/compile.md b/doc/guides/compile.md
index 4c8378946..6a093310a 100644
--- a/doc/guides/compile.md
+++ b/doc/guides/compile.md
@@ -6,11 +6,11 @@ binaries.
 ## Prerequisites
 
 To compile mruby out of the source code you need the following tools:
-* C Compiler (e.g. ```gcc```)
-* Linker (e.g. ```gcc```)
-* Archive utility (e.g. ```ar```)
-* Parser generator (e.g. ```bison```)
-* Ruby 2.0 or later (e.g. ```ruby``` or ```jruby```)
+* C Compiler (e.g. `gcc`)
+* Linker (e.g. `gcc`)
+* Archive utility (e.g. `ar`)
+* Parser generator (e.g. `bison`)
+* Ruby 2.0 or later (e.g. `ruby` or `jruby`)
 
 Optional:
 * GIT (to update mruby source and integrate mrbgems easier)
@@ -32,10 +32,10 @@ All tools necessary to compile mruby can be set or modified here. In case
 you want to maintain an additional *build_config.rb* you can define a
 customized path using the *$MRUBY_CONFIG* environment variable.
 
-To compile just call ```./minirake``` inside of the mruby source root. To
-generate and execute the test tools call ```./minirake test```. To clean
-all build files call ```./minirake clean```. To see full command line on
-build, call ```./minirake -v```.
+To compile just call `./minirake` inside of the mruby source root. To
+generate and execute the test tools call `./minirake test`. To clean
+all build files call `./minirake clean`. To see full command line on
+build, call `./minirake -v`.
 
 ## Build Configuration
 
@@ -79,7 +79,7 @@ toolchain :android
 ```
 
 Requires the custom standalone Android NDK and the toolchain path
-in ```ANDROID_STANDALONE_TOOLCHAIN```.
+in `ANDROID_STANDALONE_TOOLCHAIN`.
 
 ### Binaries
 
@@ -97,7 +97,7 @@ conf.gem "#{root}/mrbgems/mruby-bin-mirb"
 ### File Separator
 
 Some environments require a different file separator character. It is possible to
-set the character via ```conf.file_separator```.
+set the character via `conf.file_separator`.
 ```ruby
 conf.file_separator = '/'
 ```
@@ -119,7 +119,7 @@ end
 
 C Compiler has header searcher to detect installed library.
 
-If you need a include path of header file use ```search_header_path```:
+If you need a include path of header file use `search_header_path`:
 ```ruby
 # Searches ```iconv.h```.
 # If found it will return include path of the header file.
@@ -127,7 +127,7 @@ If you need a include path of header file use ```search_header_path```:
 fail 'iconv.h not found' unless conf.cc.search_header_path 'iconv.h'
 ```
 
-If you need a full file name of header file use ```search_header```:
+If you need a full file name of header file use `search_header`:
 ```ruby
 # Searches ```iconv.h```.
 # If found it will return full path of the header file.
@@ -136,11 +136,11 @@ iconv_h = conf.cc.search_header 'iconv.h'
 print "iconv.h found: #{iconv_h}\n"
 ```
 
-Header searcher uses compiler's ```include_paths``` by default.
+Header searcher uses compiler's `include_paths` by default.
 When you are using GCC toolchain (including clang toolchain since its base is gcc toolchain)
-it will use compiler specific include paths too. (For example ```/usr/local/include```, ```/usr/include```)
+it will use compiler specific include paths too. (For example `/usr/local/include`, `/usr/include`)
 
-If you need a special header search paths define a singleton method ```header_search_paths``` to C compiler:
+If you need a special header search paths define a singleton method `header_search_paths` to C compiler:
 ```ruby
 def conf.cc.header_search_paths
   ['/opt/local/include'] + include_paths
@@ -222,7 +222,7 @@ See doc/mrbgems/README.md for more option about mrbgems.
 
 Configuration Mrbtest build process.
 
-If you want mrbtest.a only, You should set ```conf.build_mrbtest_lib_only```
+If you want mrbtest.a only, You should set `conf.build_mrbtest_lib_only`
 ```ruby
 conf.build_mrbtest_lib_only
 ```
@@ -230,9 +230,9 @@ conf.build_mrbtest_lib_only
 ### Bintest
 
 Tests for mrbgem tools using CRuby.
-To have bintests place \*.rb scripts to ```bintest/``` directory of mrbgems.
-See ```mruby-bin-*/bintest/*.rb``` if you need examples.
-If you want a temporary files use `tempfile` module of CRuby instead of ```/tmp/```.
+To have bintests place \*.rb scripts to `bintest/` directory of mrbgems.
+See `mruby-bin-*/bintest/*.rb` if you need examples.
+If you want a temporary files use `tempfile` module of CRuby instead of `/tmp/`.
 
 You can enable it with following:
 ```ruby
@@ -247,8 +247,8 @@ correctly. To support mrbgems written in C++, mruby can be
 configured to use C++ exception.
 
 There are two levels of C++ exception handling. The one is
-```enable_cxx_exception``` that enables C++ exception, but
-uses C ABI. The other is ```enable_cxx_abi``` where all
+`enable_cxx_exception` that enables C++ exception, but
+uses C ABI. The other is `enable_cxx_abi` where all
 files are compiled by C++ compiler.
 
 When you mix C++ code, C++ exception would be enabled automatically.
@@ -266,7 +266,7 @@ C++ exception, add following:
 conf.disable_cxx_exception
 ```
 and you will get an error when you try to use C++ gem.
-Note that it must be called before ```enable_cxx_exception``` or ```gem``` method.
+Note that it must be called before `enable_cxx_exception` or `gem` method.
 
 ### Debugging mode
 
@@ -276,17 +276,17 @@ conf.enable_debug
 ```
 
 When debugging mode is enabled
-* Macro ```MRB_DEBUG``` would be defined.
-	* Which means ```mrb_assert()``` macro is enabled.
-* Debug information of irep would be generated by ```mrbc```.
-	* Because ```-g``` flag would be added to ```mrbc``` runner.
+* Macro `MRB_DEBUG` would be defined.
+	* Which means `mrb_assert()` macro is enabled.
+* Debug information of irep would be generated by `mrbc`.
+	* Because `-g` flag would be added to `mrbc` runner.
     * You can have better backtrace of mruby scripts with this.
 
 ## Cross-Compilation
 
 mruby can also be cross-compiled from one platform to another. To
 achieve this the *build_config.rb* needs to contain an instance of
-```MRuby::CrossBuild```. This instance defines the compilation
+`MRuby::CrossBuild`. This instance defines the compilation
 tools and flags for the target platform. An example could look
 like this:
 ```ruby
@@ -298,12 +298,12 @@ MRuby::CrossBuild.new('32bit') do |conf|
 end
 ```
 
-All configuration options of ```MRuby::Build``` can also be used
-in ```MRuby::CrossBuild```.
+All configuration options of `MRuby::Build` can also be used
+in `MRuby::CrossBuild`.
 
 ### Mrbtest in Cross-Compilation
 
-In cross compilation, you can run ```mrbtest``` on emulator if
+In cross compilation, you can run `mrbtest` on emulator if
 you have it by changing configuration of test runner.
 ```ruby
 conf.test_runner do |t|
@@ -350,15 +350,15 @@ in *build/host/src*)
 result will be stored in *build/host/src/y.tab.c*)
 * compile  *build/host/src/y.tab.c* to  *build/host/src/y.tab.o*
 * create *build/host/lib/libmruby_core.a* out of all object files (C only)
-* create ```build/host/bin/mrbc``` by compiling *tools/mrbc/mrbc.c* and
+* create `build/host/bin/mrbc` by compiling *tools/mrbc/mrbc.c* and
 linking with *build/host/lib/libmruby_core.a*
 * create *build/host/mrblib/mrblib.c* by compiling all \*.rb files
-under *mrblib* with ```build/host/bin/mrbc```
+under *mrblib* with `build/host/bin/mrbc`
 * compile *build/host/mrblib/mrblib.c* to *build/host/mrblib/mrblib.o*
 * create *build/host/lib/libmruby.a* out of all object files (C and Ruby)
-* create ```build/host/bin/mruby``` by compiling *mrbgems/mruby-bin-mruby/tools/mruby/mruby.c* and
+* create `build/host/bin/mruby` by compiling *mrbgems/mruby-bin-mruby/tools/mruby/mruby.c* and
 linking with *build/host/lib/libmruby.a*
-* create ```build/host/bin/mirb``` by compiling *mrbgems/mruby-bin-mirb/tools/mirb/mirb.c* and
+* create `build/host/bin/mirb` by compiling *mrbgems/mruby-bin-mirb/tools/mirb/mirb.c* and
 linking with *build/host/lib/libmruby.a*
 
 ```
@@ -427,15 +427,15 @@ in *build/i386/src*)
 result will be stored in *build/i386/src/y.tab.c*)
 * cross-compile *build/i386/src/y.tab.c* to *build/i386/src/y.tab.o*
 * create *build/i386/mrblib/mrblib.c* by compiling all \*.rb files
-under *mrblib* with the native ```build/host/bin/mrbc```
+under *mrblib* with the native `build/host/bin/mrbc`
 * cross-compile *build/host/mrblib/mrblib.c* to *build/host/mrblib/mrblib.o*
 * create *build/i386/lib/libmruby.a* out of all object files (C and Ruby)
-* create ```build/i386/bin/mruby``` by cross-compiling *mrbgems/mruby-bin-mruby/tools/mruby/mruby.c* and
+* create `build/i386/bin/mruby` by cross-compiling *mrbgems/mruby-bin-mruby/tools/mruby/mruby.c* and
 linking with *build/i386/lib/libmruby.a*
-* create ```build/i386/bin/mirb``` by cross-compiling *mrbgems/mruby-bin-mirb/tools/mirb/mirb.c* and
+* create `build/i386/bin/mirb` by cross-compiling *mrbgems/mruby-bin-mirb/tools/mirb/mirb.c* and
 linking with *build/i386/lib/libmruby.a*
 * create *build/i386/lib/libmruby_core.a* out of all object files (C only)
-* create ```build/i386/bin/mrbc``` by cross-compiling *tools/mrbc/mrbc.c* and
+* create `build/i386/bin/mrbc` by cross-compiling *tools/mrbc/mrbc.c* and
 linking with *build/i386/lib/libmruby_core.a*
 
 ```
@@ -482,7 +482,7 @@ all usages of stdio and doesn't compile any binaries (e.g. mrbc).
 ## Test Environment
 
 mruby's build process includes a test environment. In case you start the testing
-of mruby, a native binary called ```mrbtest``` will be generated and executed.
+of mruby, a native binary called `mrbtest` will be generated and executed.
 This binary contains all test cases which are defined under *test/t*. In case
 of a cross-compilation an additional cross-compiled *mrbtest* binary is
 generated. You can copy this binary and run on your target system.
diff --git a/doc/limitations.md b/doc/limitations.md
index 9b4ed9c6f..20e2dc52f 100644
--- a/doc/limitations.md
+++ b/doc/limitations.md
@@ -14,17 +14,17 @@ This document does not contain a complete list of limitations.
 Please help to improve it by submitting your findings.
 
 
-## ```1/2``` gives ```0.5```
+## `1/2` gives `0.5`
 
-Since mruby does not have ```Bignum```, bigger integers are represented
-by ```Float``` numbers. To enhance interoperability between ```Fixnum```
-and ```Float```, mruby provides ```Float#upto``` and other iterating
-methods for the ```Float``` class.  As a side effect, ```1/2``` gives ```0.5```
-not ```0```.
+Since mruby does not have `Bignum`, bigger integers are represented
+by `Float` numbers. To enhance interoperability between `Fixnum`
+and `Float`, mruby provides `Float#upto` and other iterating
+methods for the `Float` class.  As a side effect, `1/2` gives `0.5`
+not `0`.
 
-## ```Array``` passed to ```puts```
+## `Array` passed to `puts`
 
-Passing an Array to ```puts``` results in different output.
+Passing an Array to `puts` results in different output.
 
 ```ruby
 puts [1,2,3]
@@ -44,9 +44,9 @@ puts [1,2,3]
 [1, 2, 3]
 ```
 
-## ```Kernel.raise``` in rescue clause
+## `Kernel.raise` in rescue clause
 
-```Kernel.raise``` without arguments does not raise the current exception within
+`Kernel.raise` without arguments does not raise the current exception within
 a rescue clause.
 
 ```ruby
@@ -59,7 +59,7 @@ end
 
 #### Ruby [ruby 2.0.0p645 (2015-04-13 revision 50299)]
 
-```ZeroDivisionError``` is raised.
+`ZeroDivisionError` is raised.
 
 #### mruby [2.0.1 (2019-4-4)]
 
@@ -67,13 +67,13 @@ No exception is raised.
 
 ## Fiber execution can't cross C function boundary
 
-mruby's ```Fiber``` is implemented in a similar way to Lua's co-routine. This
+mruby's `Fiber` is implemented in a similar way to Lua's co-routine. This
 results in the consequence that you can't switch context within C functions.
-Only exception is ```mrb_fiber_yield``` at return.
+Only exception is `mrb_fiber_yield` at return.
 
-## ```Array``` does not support instance variables
+## `Array` does not support instance variables
 
-To reduce memory consumption ```Array``` does not support instance variables.
+To reduce memory consumption `Array` does not support instance variables.
 
 ```ruby
 class Liste < Array
@@ -87,11 +87,11 @@ p Liste.new "foobar"
 
 #### Ruby [ruby 2.0.0p645 (2015-04-13 revision 50299)]
 
-``` [] ```
+` [] `
 
 #### mruby [2.0.1 (2019-4-4)]
 
-```ArgumentError``` is raised.
+`ArgumentError` is raised.
 
 ## Method visibility
 
@@ -128,8 +128,8 @@ true
 
 ## defined?
 
-The ```defined?``` keyword is considered too complex to be fully
-implemented. It is recommended to use ```const_defined?``` and
+The `defined?` keyword is considered too complex to be fully
+implemented. It is recommended to use `const_defined?` and
 other reflection methods instead.
 
 ```ruby
@@ -144,9 +144,9 @@ nil
 
 #### mruby [2.0.1 (2019-4-4)]
 
-```NameError``` is raised.
+`NameError` is raised.
 
-## ```alias``` on global variables
+## `alias` on global variables
 
 Aliasing a global variable works in CRuby but is not part
 of the ISO standard.
@@ -157,7 +157,7 @@ alias $a $__a__
 
 #### Ruby [ruby 2.0.0p645 (2015-04-13 revision 50299)]
 
-``` nil ```
+` nil `
 
 #### mruby [2.0.1 (2019-4-4)]
 
@@ -178,12 +178,12 @@ end
 
 #### Ruby [ruby 2.0.0p645 (2015-04-13 revision 50299)]
 
-```ArgumentError``` is raised.
-The re-defined ```+``` operator does not accept any arguments.
+`ArgumentError` is raised.
+The re-defined `+` operator does not accept any arguments.
 
 #### mruby [2.0.1 (2019-4-4)]
 
-``` 'ab' ```
+` 'ab' `
 Behavior of the operator wasn't changed.
 
 ## Kernel#binding is not supported
diff --git a/doc/mruby_logo_red_icon.png b/doc/mruby_logo_red_icon.png
new file mode 100644
index 000000000..084908542
--- /dev/null
+++ b/doc/mruby_logo_red_icon.png
diff --git a/doc/opcode.md b/doc/opcode.md
index eab82a26f..574a3c83f 100644
--- a/doc/opcode.md
+++ b/doc/opcode.md
@@ -31,97 +31,97 @@ with `"`, either `OP_EXT1` or `OP_EXT2` or `OP_EXT2` can be prefixed.
 
 ## table.1 Instruction Table
 
-|Instruction Name |Operand type |Semantics        
-|-----------------|-------------|-----------------
-|OP_NOP           | -           |                 
-|OP_MOVE"         |BB           |R(a) = R(b)      
-|OP_LOADL"        |BB           |R(a) = Pool(b)   
-|OP_LOADI"        |BsB          |R(a) = mrb_int(b)
-|OP_LOADI_0'      |B            |R(a) = 0
-|OP_LOADI_1'      |B            |R(a) = 1
-|OP_LOADI_2'      |B            |R(a) = 2
-|OP_LOADI_3'      |B            |R(a) = 3
-|OP_LOADSYM"      |BB           |R(a) = Syms(b)
-|OP_LOADNIL'      |B            |R(a) = nil
-|OP_LOADSELF'     |B            |R(a) = self
-|OP_LOADT'        |B            |R(a) = true
-|OP_LOADF'        |B            |R(a) = false
-|OP_GETGV"        |BB           |R(a) = getglobal(Syms(b))
-|OP_SETGV"        |BB           |setglobal(Syms(b), R(a))
-|OP_GETSV"        |BB           |R(a) = Special[b]
-|OP_SETSV"        |BB           |Special[b] = R(a)
-|OP_GETIV"        |BB           |R(a) = ivget(Syms(b))
-|OP_SETIV"        |BB           |ivset(Syms(b),R(a))
-|OP_GETCV"        |BB           |R(a) = cvget(Syms(b))
-|OP_SETCV"        |BB           |cvset(Syms(b),R(a))
-|OP_GETCONST"     |BB           |R(a) = constget(Syms(b))
-|OP_SETCONST"     |BB           |constset(Syms(b),R(a))
-|OP_GETMCNST"     |BB           |R(a) = R(a)::Syms(b)
-|OP_SETMCNST"     |BB           |R(a+1)::Syms(b) = R(a)
-|OP_GETUPVAR'     |BBB          |R(a) = uvget(b,c)
-|OP_SETUPVAR'     |BBB          |uvset(b,c,R(a))
-|OP_JMP           |S            |pc+=a
-|OP_JMPIF'        |SB           |if R(b) pc+=a
-|OP_JMPNOT'       |SB           |if !R(b) pc+=a
-|OP_ONERR         |sS           |rescue_push(pc+a)
-|OP_EXCEPT'       |B            |R(a) = exc
-|OP_RESCUE"       |BB           |R(b) = R(a).isa?(R(b))
-|OP_POPERR        |B            |a.times{rescue_pop()}
-|OP_RAISE'        |B            |raise(R(a))
-|OP_EPUSH'        |B            |ensure_push(SEQ[a])
-|OP_EPOP          |B            |A.times{ensure_pop().call}
-|OP_SENDV"        |BB           |R(a) = call(R(a),Syms(b),*R(a+1))
-|OP_SENDVB"       |BB           |R(a) = call(R(a),Syms(b),*R(a+1),&R(a+2))
-|OP_SEND"         |BBB          |R(a) = call(R(a),Syms(b),R(a+1),...,R(a+c))
-|OP_SENDB"        |BBB          |R(a) = call(R(a),Syms(Bx),R(a+1),...,R(a+c),&R(a+c+1))
-|OP_CALL'         |B            |R(a) = self.call(frame.argc, frame.argv)
-|OP_SUPER'        |BB           |R(a) = super(R(a+1),... ,R(a+b+1))
-|OP_ARGARY'       |BS           |R(a) = argument array (16=5:1:5:1:4)
-|OP_ENTER         |W            |arg setup according to flags (23=5:5:1:5:5:1:1)
-|OP_KARG"         |BB           |R(a) = kdict[Syms(Bx)]                          # todo
-|OP_KARG2"        |BB           |R(a) = kdict[Syms(Bx)]; kdict.rm(Syms(b))       # todo
-|OP_RETURN'       |B            |return R(a) (normal)
-|OP_RETURN_BLK'   |B            |return R(a) (in-block return)
-|OP_BREAK'        |B            |break R(a)
-|OP_BLKPUSH'      |BS           |R(a) = block (16=5:1:5:1:4)
-|OP_ADD"          |BB           |R(a) = R(a)+R(a+1)
-|OP_ADDI"         |BBB          |R(a) = R(a)+mrb_int(c)
-|OP_SUB"          |BB           |R(a) = R(a)-R(a+1)
-|OP_SUBI"         |BB           |R(a) = R(a)-C
-|OP_MUL"          |BB           |R(a) = R(a)*R(a+1)
-|OP_DIV"          |BB           |R(a) = R(a)/R(a+1)
-|OP_EQ"           |BB           |R(a) = R(a)==R(a+1)
-|OP_LT"           |BB           |R(a) = R(a)<R(a+1)
-|OP_LE"           |BB           |R(a) = R(a)<=R(a+1)
-|OP_GT"           |BB           |R(a) = R(a)>R(a+1)
-|OP_GE"           |BB           |R(a) = R(a)>=R(a+1)
-|OP_ARRAY'        |BB           |R(a) = ary_new(R(a),R(a+1)..R(a+b))
-|OP_ARRAY2"       |BB           |R(a) = ary_new(R(b),R(b+1)..R(b+c))
-|OP_ARYCAT'       |B            |ary_cat(R(a),R(a+1))
-|OP_ARYPUSH'      |B            |ary_push(R(a),R(a+1))
-|OP_AREF'         |BB           |R(a) = R(a)[b]
-|OP_ASET'         |BB           |R(a)[b] = R(a+1)
-|OP_APOST'        |BB           |*R(a),R(A+1)..R(A+C) = R(a)[B..]
-|OP_STRING"       |BB           |R(a) = str_dup(Lit(b))
-|OP_STRCAT'       |B            |str_cat(R(a),R(a+1))
-|OP_HASH'         |BB           |R(a) = hash_new(R(a),R(a+1)..R(a+b))
-|OP_HASHADD'      |BB           |R(a) = hash_push(R(a),R(a+1)..R(a+b))
-|OP_LAMBDA"       |BB           |R(a) = lambda(SEQ[b],OP_L_LAMBDA)
-|OP_BLOCK"        |BB           |R(a) = lambda(SEQ[b],OP_L_BLOCK)
-|OP_METHOD"       |BB           |R(a) = lambda(SEQ[b],OP_L_METHOD)
-|OP_RANGE_INC'    |B            |R(a) = range_new(R(a),R(a+1),FALSE)
-|OP_RANGE_EXC'    |B            |R(a) = range_new(R(a),R(a+1),TRUE)
-|OP_OCLASS'       |B            |R(a) = ::Object
-|OP_CLASS"        |BB           |R(a) = newclass(R(a),Syms(b),R(a+1))
-|OP_MODULE"       |BB           |R(a) = newmodule(R(a),Syms(b))
-|OP_EXEC"         |BB           |R(a) = blockexec(R(a),SEQ[b])
-|OP_DEF"          |BB           |R(a).newmethod(Syms(b),R(a+1))
-|OP_ALIAS'        |B            |alias_method(R(a),R(a+1),R(a+2))
-|OP_UNDEF"        |BB           |undef_method(R(a),Syms(b))
-|OP_SCLASS'       |B            |R(a) = R(a).singleton_class
-|OP_TCLASS'       |B            |R(a) = target_class
-|OP_ERR'          |B            |raise(RuntimeError, Lit(Bx))
-|OP_EXT1          |-            |make 1st operand 16bit
-|OP_EXT2          |-            |make 2nd operand 16bit
-|OP_EXT3          |-            |make 1st and 2nd operands 16bit
-|OP_STOP          |-            |stop VM
+| Instruction Name | Operand type | Semantics        	|
+|:-----------------|--------------|---------------------|
+| OP_NOP           | -            |                  	|
+| OP_MOVE"         | BB           | R(a) = R(b)      	
+| OP_LOADL"        | BB           | R(a) = Pool(b)   	
+| OP_LOADI"        | BsB          | R(a) = mrb_int(b)	
+| OP_LOADI_0'      | B            | R(a) = 0	
+| OP_LOADI_1'      | B            | R(a) = 1	
+| OP_LOADI_2'      | B            | R(a) = 2	
+| OP_LOADI_3'      | B            | R(a) = 3	
+| OP_LOADSYM"      | BB           | R(a) = Syms(b)	
+| OP_LOADNIL'      | B            | R(a) = nil	
+| OP_LOADSELF'     | B            | R(a) = self	
+| OP_LOADT'        | B            | R(a) = true	
+| OP_LOADF'        | B            | R(a) = false	
+| OP_GETGV"        | BB           | R(a) = getglobal(Syms(b))	
+| OP_SETGV"        | BB           | setglobal(Syms(b), R(a))	
+| OP_GETSV"        | BB           | R(a) = Special[b]	
+| OP_SETSV"        | BB           | Special[b] = R(a)	
+| OP_GETIV"        | BB           | R(a) = ivget(Syms(b))	
+| OP_SETIV"        | BB           | ivset(Syms(b),R(a))	
+| OP_GETCV"        | BB           | R(a) = cvget(Syms(b))	
+| OP_SETCV"        | BB           | cvset(Syms(b),R(a))	
+| OP_GETCONST"     | BB           | R(a) = constget(Syms(b))	
+| OP_SETCONST"     | BB           | constset(Syms(b),R(a))	
+| OP_GETMCNST"     | BB           | R(a) = R(a)::Syms(b)	
+| OP_SETMCNST"     | BB           | R(a+1)::Syms(b) = R(a)	
+| OP_GETUPVAR'     | BBB          | R(a) = uvget(b,c)	
+| OP_SETUPVAR'     | BBB          | uvset(b,c,R(a))	
+| OP_JMP           | S            | pc+=a	
+| OP_JMPIF'        | SB           | if R(b) pc+=a	
+| OP_JMPNOT'       | SB           | if !R(b) pc+=a	
+| OP_ONERR         | sS           | rescue_push(pc+a)	
+| OP_EXCEPT'       | B            | R(a) = exc	
+| OP_RESCUE"       | BB           | R(b) = R(a).isa?(R(b))	
+| OP_POPERR        | B            | a.times{rescue_pop()}	
+| OP_RAISE'        | B            | raise(R(a))	
+| OP_EPUSH'        | B            | ensure_push(SEQ[a])	
+| OP_EPOP          | B            | A.times{ensure_pop().call}	
+| OP_SENDV"        | BB           | R(a) = call(R(a),Syms(b),*R(a+1))	
+| OP_SENDVB"       | BB           | R(a) = call(R(a),Syms(b),*R(a+1),&R(a+2))	
+| OP_SEND"         | BBB          | R(a) = call(R(a),Syms(b),R(a+1),...,R(a+c))	
+| OP_SENDB"        | BBB          | R(a) = call(R(a),Syms(Bx),R(a+1),...,R(a+c),&R(a+c+1))	
+| OP_CALL'         | B            | R(a) = self.call(frame.argc, frame.argv)	
+| OP_SUPER'        | BB           | R(a) = super(R(a+1),... ,R(a+b+1))	
+| OP_ARGARY'       | BS           | R(a) = argument array (16=5:1:5:1:4)	
+| OP_ENTER         | W            | arg setup according to flags (23=5:5:1:5:5:1:1)	
+| OP_KARG"         | BB           | R(a) = kdict[Syms(Bx)]                          # todo	
+| OP_KARG2"        | BB           | R(a) = kdict[Syms(Bx)]; kdict.rm(Syms(b))       # todo	
+| OP_RETURN'       | B            | return R(a) (normal)	
+| OP_RETURN_BLK'   | B            | return R(a) (in-block return)	
+| OP_BREAK'        | B            | break R(a)	
+| OP_BLKPUSH'      | BS           | R(a) = block (16=5:1:5:1:4)	
+| OP_ADD"          | BB           | R(a) = R(a)+R(a+1)	
+| OP_ADDI"         | BBB          | R(a) = R(a)+mrb_int(c)	
+| OP_SUB"          | BB           | R(a) = R(a)-R(a+1)	
+| OP_SUBI"         | BB           | R(a) = R(a)-C	
+| OP_MUL"          | BB           | R(a) = R(a)*R(a+1)	
+| OP_DIV"          | BB           | R(a) = R(a)/R(a+1)	
+| OP_EQ"           | BB           | R(a) = R(a)==R(a+1)	
+| OP_LT"           | BB           | R(a) = R(a)<R(a+1)	
+| OP_LE"           | BB           | R(a) = R(a)<=R(a+1)	
+| OP_GT"           | BB           | R(a) = R(a)>R(a+1)	
+| OP_GE"           | BB           | R(a) = R(a)>=R(a+1)	
+| OP_ARRAY'        | BB           | R(a) = ary_new(R(a),R(a+1)..R(a+b))	
+| OP_ARRAY2"       | BB           | R(a) = ary_new(R(b),R(b+1)..R(b+c))	
+| OP_ARYCAT'       | B            | ary_cat(R(a),R(a+1))	
+| OP_ARYPUSH'      | B            | ary_push(R(a),R(a+1))	
+| OP_AREF'         | BB           | R(a) = R(a)[b]	
+| OP_ASET'         | BB           | R(a)[b] = R(a+1)	
+| OP_APOST'        | BB           | *R(a),R(A+1)..R(A+C) = R(a)[B..]	
+| OP_STRING"       | BB           | R(a) = str_dup(Lit(b))	
+| OP_STRCAT'       | B            | str_cat(R(a),R(a+1))	
+| OP_HASH'         | BB           | R(a) = hash_new(R(a),R(a+1)..R(a+b))	
+| OP_HASHADD'      | BB           | R(a) = hash_push(R(a),R(a+1)..R(a+b))	
+| OP_LAMBDA"       | BB           | R(a) = lambda(SEQ[b],OP_L_LAMBDA)	
+| OP_BLOCK"        | BB           | R(a) = lambda(SEQ[b],OP_L_BLOCK)	
+| OP_METHOD"       | BB           | R(a) = lambda(SEQ[b],OP_L_METHOD)	
+| OP_RANGE_INC'    | B            | R(a) = range_new(R(a),R(a+1),FALSE)	
+| OP_RANGE_EXC'    | B            | R(a) = range_new(R(a),R(a+1),TRUE)	
+| OP_OCLASS'       | B            | R(a) = ::Object	
+| OP_CLASS"        | BB           | R(a) = newclass(R(a),Syms(b),R(a+1))	
+| OP_MODULE"       | BB           | R(a) = newmodule(R(a),Syms(b))	
+| OP_EXEC"         | BB           | R(a) = blockexec(R(a),SEQ[b])	
+| OP_DEF"          | BB           | R(a).newmethod(Syms(b),R(a+1))	
+| OP_ALIAS'        | B            | alias_method(R(a),R(a+1),R(a+2))	
+| OP_UNDEF"        | BB           | undef_method(R(a),Syms(b))	
+| OP_SCLASS'       | B            | R(a) = R(a).singleton_class	
+| OP_TCLASS'       | B            | R(a) = target_class	
+| OP_ERR'          | B            | raise(RuntimeError, Lit(Bx))	
+| OP_EXT1          | -            | make 1st operand 16bit	
+| OP_EXT2          | -            | make 2nd operand 16bit	
+| OP_EXT3          | -            | make 1st and 2nd operands 16bit	
+| OP_STOP          | -            | stop VM	
diff --git a/include/mruby.h b/include/mruby.h
index b1b983f52..87ccd8c05 100644
--- a/include/mruby.h
+++ b/include/mruby.h
@@ -25,6 +25,10 @@
 ** [ MIT license: http://www.opensource.org/licenses/mit-license.php ]
 */
 
+/**
+ * @file mruby.h
+ */
+
 #ifndef MRUBY_H
 #define MRUBY_H
 
@@ -97,11 +101,14 @@ MRB_BEGIN_DECL
 typedef uint8_t mrb_code;
 
 /**
- * Required arguments signature type.
+ * \class mrb_aspec
+ *
+ * Specifies the number of arguments a function takes
+ *
+ * Example: `MRB_ARGS_REQ(2) | MRB_ARGS_OPT(1)` for a method that expects 2..3 arguments
  */
 typedef uint32_t mrb_aspec;
 
-
 struct mrb_irep;
 struct mrb_state;
 
diff --git a/include/mruby/array.h b/include/mruby/array.h
index f8561d136..dde9f80cb 100644
--- a/include/mruby/array.h
+++ b/include/mruby/array.h
@@ -1,5 +1,5 @@
-/*
-** mruby/array.h - Array class
+/**
+** @file mruby/array.h - Array class
 **
 ** See Copyright Notice in mruby.h
 */
diff --git a/include/mruby/boxing_nan.h b/include/mruby/boxing_nan.h
index ff6f6082d..702fa13fb 100644
--- a/include/mruby/boxing_nan.h
+++ b/include/mruby/boxing_nan.h
@@ -1,5 +1,5 @@
-/*
-** mruby/boxing_nan.h - nan boxing mrb_value definition
+/**
+** @file mruby/boxing_nan.h - nan boxing mrb_value definition
 **
 ** See Copyright Notice in mruby.h
 */
diff --git a/include/mruby/boxing_no.h b/include/mruby/boxing_no.h
index 86ce64555..152471913 100644
--- a/include/mruby/boxing_no.h
+++ b/include/mruby/boxing_no.h
@@ -1,5 +1,5 @@
-/*
-** mruby/boxing_no.h - unboxed mrb_value definition
+/**
+** @file mruby/boxing_no.h - unboxed mrb_value definition
 **
 ** See Copyright Notice in mruby.h
 */
diff --git a/include/mruby/boxing_word.h b/include/mruby/boxing_word.h
index f16968a1f..bd8105496 100644
--- a/include/mruby/boxing_word.h
+++ b/include/mruby/boxing_word.h
@@ -1,5 +1,5 @@
-/*
-** mruby/boxing_word.h - word boxing mrb_value definition
+/**
+** @file mruby/boxing_word.h - word boxing mrb_value definition
 **
 ** See Copyright Notice in mruby.h
 */
diff --git a/include/mruby/class.h b/include/mruby/class.h
index 169e1327b..7c925f3b3 100644
--- a/include/mruby/class.h
+++ b/include/mruby/class.h
@@ -1,5 +1,5 @@
-/*
-** mruby/class.h - Class class
+/**
+** @file mruby/class.h - Class class
 **
 ** See Copyright Notice in mruby.h
 */
diff --git a/include/mruby/common.h b/include/mruby/common.h
index dc9e3acc5..45ab71ef5 100644
--- a/include/mruby/common.h
+++ b/include/mruby/common.h
@@ -1,5 +1,5 @@
-/*
-**"common.h - mruby common platform definition"
+/**
+** @file common.h - mruby common platform definition"
 **
 ** See Copyright Notice in mruby.h
 */
diff --git a/include/mruby/compile.h b/include/mruby/compile.h
index 3b25ff526..ac9a9892a 100644
--- a/include/mruby/compile.h
+++ b/include/mruby/compile.h
@@ -1,5 +1,5 @@
-/*
-** mruby/compile.h - mruby parser
+/**
+** @file mruby/compile.h - mruby parser
 **
 ** See Copyright Notice in mruby.h
 */
diff --git a/include/mruby/data.h b/include/mruby/data.h
index 54466dcd6..35ec2c25b 100644
--- a/include/mruby/data.h
+++ b/include/mruby/data.h
@@ -1,5 +1,5 @@
-/*
-** mruby/data.h - Data class
+/**
+** @file mruby/data.h - Data class
 **
 ** See Copyright Notice in mruby.h
 */
diff --git a/include/mruby/debug.h b/include/mruby/debug.h
index e08c47cfc..f28dd645a 100644
--- a/include/mruby/debug.h
+++ b/include/mruby/debug.h
@@ -1,5 +1,5 @@
-/*
-** mruby/debug.h - mruby debug info
+/**
+** @file mruby/debug.h - mruby debug info
 **
 ** See Copyright Notice in mruby.h
 */
diff --git a/include/mruby/dump.h b/include/mruby/dump.h
index 65ed8af9d..46c3b63ce 100644
--- a/include/mruby/dump.h
+++ b/include/mruby/dump.h
@@ -1,5 +1,5 @@
-/*
-** mruby/dump.h - mruby binary dumper (mrbc binary format)
+/**
+** @file mruby/dump.h - mruby binary dumper (mrbc binary format)
 **
 ** See Copyright Notice in mruby.h
 */
diff --git a/include/mruby/error.h b/include/mruby/error.h
index 237c701ad..b795bdf4c 100644
--- a/include/mruby/error.h
+++ b/include/mruby/error.h
@@ -1,5 +1,5 @@
-/*
-** mruby/error.h - Exception class
+/**
+** @file mruby/error.h - Exception class
 **
 ** See Copyright Notice in mruby.h
 */
diff --git a/include/mruby/gc.h b/include/mruby/gc.h
index 2a3ff4182..4d9fb60eb 100644
--- a/include/mruby/gc.h
+++ b/include/mruby/gc.h
@@ -1,5 +1,5 @@
-/*
-** mruby/gc.h - garbage collector for mruby
+/**
+** @file mruby/gc.h - garbage collector for mruby
 **
 ** See Copyright Notice in mruby.h
 */
diff --git a/include/mruby/hash.h b/include/mruby/hash.h
index 7e2ed5596..734a8c3b5 100644
--- a/include/mruby/hash.h
+++ b/include/mruby/hash.h
@@ -1,5 +1,5 @@
-/*
-** mruby/hash.h - Hash class
+/**
+** @file mruby/hash.h - Hash class
 **
 ** See Copyright Notice in mruby.h
 */
diff --git a/include/mruby/irep.h b/include/mruby/irep.h
index 2989e0647..4393129c7 100644
--- a/include/mruby/irep.h
+++ b/include/mruby/irep.h
@@ -1,5 +1,5 @@
-/*
-** mruby/irep.h - mrb_irep structure
+/**
+** @file mruby/irep.h - mrb_irep structure
 **
 ** See Copyright Notice in mruby.h
 */
diff --git a/include/mruby/istruct.h b/include/mruby/istruct.h
index 23c9bfa36..45b1fadae 100644
--- a/include/mruby/istruct.h
+++ b/include/mruby/istruct.h
@@ -1,5 +1,5 @@
-/*
-** mruby/istruct.h - Inline structures
+/**
+** @file mruby/istruct.h - Inline structures
 **
 ** See Copyright Notice in mruby.h
 */
diff --git a/include/mruby/khash.h b/include/mruby/khash.h
index 9c40c6b80..c00357061 100644
--- a/include/mruby/khash.h
+++ b/include/mruby/khash.h
@@ -1,5 +1,5 @@
-/*
-** mruby/khash.c - Hash for mruby
+/**
+** @file mruby/khash.h - Hash for mruby
 **
 ** See Copyright Notice in mruby.h
 */
diff --git a/include/mruby/numeric.h b/include/mruby/numeric.h
index 39f6773d9..a176d96cd 100644
--- a/include/mruby/numeric.h
+++ b/include/mruby/numeric.h
@@ -1,5 +1,5 @@
-/*
-** mruby/numeric.h - Numeric, Integer, Float, Fixnum class
+/**
+** @file mruby/numeric.h - Numeric, Integer, Float, Fixnum class
 **
 ** See Copyright Notice in mruby.h
 */
diff --git a/include/mruby/object.h b/include/mruby/object.h
index 373e3bec7..48dcc4977 100644
--- a/include/mruby/object.h
+++ b/include/mruby/object.h
@@ -1,5 +1,5 @@
-/*
-** mruby/object.h - mruby object definition
+/**
+** @file mruby/object.h - mruby object definition
 **
 ** See Copyright Notice in mruby.h
 */
@@ -8,15 +8,14 @@
 #define MRUBY_OBJECT_H
 
 #define MRB_OBJECT_HEADER \
-  enum mrb_vtype tt:8;\
-  uint32_t color:3;\
-  uint32_t flags:21;\
-  struct RClass *c;\
+  enum mrb_vtype tt:8;    \
+  uint32_t color:3;       \
+  uint32_t flags:21;      \
+  struct RClass *c;       \
   struct RBasic *gcnext
 
 #define MRB_FLAG_TEST(obj, flag) ((obj)->flags & (flag))
 
-
 struct RBasic {
   MRB_OBJECT_HEADER;
 };
diff --git a/include/mruby/opcode.h b/include/mruby/opcode.h
index d513ca472..95e6736a4 100644
--- a/include/mruby/opcode.h
+++ b/include/mruby/opcode.h
@@ -1,5 +1,5 @@
-/*
-** mruby/opcode.h - RiteVM operation codes
+/**
+** @file mruby/opcode.h - RiteVM operation codes
 **
 ** See Copyright Notice in mruby.h
 */
diff --git a/include/mruby/proc.h b/include/mruby/proc.h
index a8b16db1d..d6459f8bf 100644
--- a/include/mruby/proc.h
+++ b/include/mruby/proc.h
@@ -1,5 +1,5 @@
-/*
-** mruby/proc.h - Proc class
+/**
+** @file mruby/proc.h - Proc class
 **
 ** See Copyright Notice in mruby.h
 */
diff --git a/include/mruby/range.h b/include/mruby/range.h
index 500a941d5..fea700c24 100644
--- a/include/mruby/range.h
+++ b/include/mruby/range.h
@@ -1,5 +1,5 @@
-/*
-** mruby/range.h - Range class
+/**
+** @file mruby/range.h - Range class
 **
 ** See Copyright Notice in mruby.h
 */
diff --git a/include/mruby/re.h b/include/mruby/re.h
index 1d09d06c9..2d48019cf 100644
--- a/include/mruby/re.h
+++ b/include/mruby/re.h
@@ -1,5 +1,5 @@
-/*
-** mruby/re.h - Regexp class
+/**
+** @file mruby/re.h - Regexp class
 **
 ** See Copyright Notice in mruby.h
 */
diff --git a/include/mruby/string.h b/include/mruby/string.h
index 51510457d..ab29be421 100644
--- a/include/mruby/string.h
+++ b/include/mruby/string.h
@@ -1,5 +1,5 @@
-/*
-** mruby/string.h - String class
+/**
+** @file mruby/string.h - String class
 **
 ** See Copyright Notice in mruby.h
 */
@@ -90,7 +90,7 @@ struct RString {
 #define RSTR_POOL_P(s) ((s)->flags & MRB_STR_POOL)
 #define RSTR_SET_POOL_FLAG(s) ((s)->flags |= MRB_STR_POOL)
 
-/*
+/**
  * Returns a pointer from a Ruby string
  */
 #define mrb_str_ptr(s)       ((struct RString*)(mrb_ptr(s)))
@@ -121,13 +121,13 @@ MRB_API void mrb_str_modify(mrb_state *mrb, struct RString *s);
 /* mrb_str_modify() with keeping ASCII flag if set */
 MRB_API void mrb_str_modify_keep_ascii(mrb_state *mrb, struct RString *s);
 
-/*
+/**
  * Finds the index of a substring in a string
  */
 MRB_API mrb_int mrb_str_index(mrb_state*, mrb_value, const char*, mrb_int, mrb_int);
 #define mrb_str_index_lit(mrb, str, lit, off) mrb_str_index(mrb, str, lit, mrb_strlen_lit(lit), off);
 
-/*
+/**
  * Appends self to other. Returns self as a concatenated string.
  *
  *
@@ -174,7 +174,7 @@ MRB_API mrb_int mrb_str_index(mrb_state*, mrb_value, const char*, mrb_int, mrb_i
  */
 MRB_API void mrb_str_concat(mrb_state*, mrb_value, mrb_value);
 
-/*
+/**
  * Adds two strings together.
  *
  *
@@ -228,7 +228,7 @@ MRB_API void mrb_str_concat(mrb_state*, mrb_value, mrb_value);
  */
 MRB_API mrb_value mrb_str_plus(mrb_state*, mrb_value, mrb_value);
 
-/*
+/**
  * Converts pointer into a Ruby string.
  *
  * @param [mrb_state] mrb The current mruby state.
@@ -237,7 +237,7 @@ MRB_API mrb_value mrb_str_plus(mrb_state*, mrb_value, mrb_value);
  */
 MRB_API mrb_value mrb_ptr_to_str(mrb_state *, void*);
 
-/*
+/**
  * Returns an object as a Ruby string.
  *
  * @param [mrb_state] mrb The current mruby state.
@@ -246,7 +246,7 @@ MRB_API mrb_value mrb_ptr_to_str(mrb_state *, void*);
  */
 MRB_API mrb_value mrb_obj_as_string(mrb_state *mrb, mrb_value obj);
 
-/*
+/**
  * Resizes the string's length. Returns the amount of characters
  * in the specified by len.
  *
@@ -286,7 +286,7 @@ MRB_API mrb_value mrb_obj_as_string(mrb_state *mrb, mrb_value obj);
  */
 MRB_API mrb_value mrb_str_resize(mrb_state *mrb, mrb_value str, mrb_int len);
 
-/*
+/**
  * Returns a sub string.
  *
  *  Example:
@@ -329,7 +329,7 @@ MRB_API mrb_value mrb_str_resize(mrb_state *mrb, mrb_value str, mrb_int len);
  */
 MRB_API mrb_value mrb_str_substr(mrb_state *mrb, mrb_value str, mrb_int beg, mrb_int len);
 
-/*
+/**
  * Returns a Ruby string type.
  *
  *
@@ -355,7 +355,7 @@ MRB_API const char *mrb_string_value_ptr(mrb_state *mrb, mrb_value str);
 /* obslete: use RSTRING_LEN() */
 MRB_API mrb_int mrb_string_value_len(mrb_state *mrb, mrb_value str);
 
-/*
+/**
  * Duplicates a string object.
  *
  *
@@ -365,7 +365,7 @@ MRB_API mrb_int mrb_string_value_len(mrb_state *mrb, mrb_value str);
  */
 MRB_API mrb_value mrb_str_dup(mrb_state *mrb, mrb_value str);
 
-/*
+/**
  * Returns a symbol from a passed in Ruby string.
  *
  * @param [mrb_state] mrb The current mruby state.
@@ -379,13 +379,13 @@ MRB_API mrb_value mrb_cstr_to_inum(mrb_state *mrb, const char *s, mrb_int base,
 MRB_API double mrb_str_to_dbl(mrb_state *mrb, mrb_value str, mrb_bool badcheck);
 MRB_API double mrb_cstr_to_dbl(mrb_state *mrb, const char *s, mrb_bool badcheck);
 
-/*
+/**
  * Returns a converted string type.
  * For type checking, non converting `mrb_to_str` is recommended.
  */
 MRB_API mrb_value mrb_str_to_str(mrb_state *mrb, mrb_value str);
 
-/*
+/**
  * Returns true if the strings match and false if the strings don't match.
  *
  * @param [mrb_state] mrb The current mruby state.
@@ -395,8 +395,8 @@ MRB_API mrb_value mrb_str_to_str(mrb_state *mrb, mrb_value str);
  */
 MRB_API mrb_bool mrb_str_equal(mrb_state *mrb, mrb_value str1, mrb_value str2);
 
-/*
- * Returns a concated string comprised of a Ruby string and a C string.
+/**
+ * Returns a concatenated string comprised of a Ruby string and a C string.
  *
  * @param [mrb_state] mrb The current mruby state.
  * @param [mrb_value] str Ruby string.
@@ -407,8 +407,8 @@ MRB_API mrb_bool mrb_str_equal(mrb_state *mrb, mrb_value str1, mrb_value str2);
  */
 MRB_API mrb_value mrb_str_cat(mrb_state *mrb, mrb_value str, const char *ptr, size_t len);
 
-/*
- * Returns a concated string comprised of a Ruby string and a C string.
+/**
+ * Returns a concatenated string comprised of a Ruby string and a C string.
  *
  * @param [mrb_state] mrb The current mruby state.
  * @param [mrb_value] str Ruby string.
@@ -420,17 +420,17 @@ MRB_API mrb_value mrb_str_cat_cstr(mrb_state *mrb, mrb_value str, const char *pt
 MRB_API mrb_value mrb_str_cat_str(mrb_state *mrb, mrb_value str, mrb_value str2);
 #define mrb_str_cat_lit(mrb, str, lit) mrb_str_cat(mrb, str, lit, mrb_strlen_lit(lit))
 
-/*
+/**
  * Adds str2 to the end of str1.
  */
 MRB_API mrb_value mrb_str_append(mrb_state *mrb, mrb_value str, mrb_value str2);
 
-/*
+/**
  * Returns 0 if both Ruby strings are equal. Returns a value < 0 if Ruby str1 is less than Ruby str2. Returns a value > 0 if Ruby str2 is greater than Ruby str1.
  */
 MRB_API int mrb_str_cmp(mrb_state *mrb, mrb_value str1, mrb_value str2);
 
-/*
+/**
  * Returns a newly allocated C string from a Ruby string.
  * This is an utility function to pass a Ruby string to C library functions.
  *
@@ -451,7 +451,7 @@ mrb_value mrb_str_pool(mrb_state *mrb, mrb_value str);
 uint32_t mrb_str_hash(mrb_state *mrb, mrb_value str);
 mrb_value mrb_str_dump(mrb_state *mrb, mrb_value str);
 
-/*
+/**
  * Returns a printable version of str, surrounded by quote marks, with special characters escaped.
  */
 mrb_value mrb_str_inspect(mrb_state *mrb, mrb_value str);
diff --git a/include/mruby/throw.h b/include/mruby/throw.h
index 4a1fd8d60..1f1298d7d 100644
--- a/include/mruby/throw.h
+++ b/include/mruby/throw.h
@@ -1,5 +1,5 @@
-/*
-** mruby/throw.h - mruby exception throwing handler
+/**
+** @file mruby/throw.h - mruby exception throwing handler
 **
 ** See Copyright Notice in mruby.h
 */
diff --git a/include/mruby/value.h b/include/mruby/value.h
index be3dd397f..2ba0b3587 100644
--- a/include/mruby/value.h
+++ b/include/mruby/value.h
@@ -1,5 +1,5 @@
-/*
-** mruby/value.h - mruby value definitions
+/**
+** @file mruby/value.h - mruby value definitions
 **
 ** See Copyright Notice in mruby.h
 */
@@ -9,12 +9,27 @@
 
 #include "common.h"
 
-/**
+/*
  * MRuby Value definition functions and macros.
  */
 MRB_BEGIN_DECL
 
+/**
+ * @class mrb_sym
+ * @brief mruby Symbol
+ * 
+ * You can create an mrb_sym by simply using mrb_str_intern() or mrb_intern_cstr()
+ */
 typedef uint32_t mrb_sym;
+
+/**
+ * @class mrb_bool
+ * @brief mruby Boolean
+ *
+ * Used internally to represent boolean. Can be TRUE or FALSE.
+ * Not to be confused with Ruby's boolean classes, which can be 
+ * obtained using mrb_false_value() and mrb_true_value()
+ */
 typedef uint8_t mrb_bool;
 struct mrb_state;
 
@@ -178,8 +193,10 @@ typedef void mrb_value;
 #define mrb_exception_p(o) (mrb_type(o) == MRB_TT_EXCEPTION)
 #define mrb_test(o)   mrb_bool(o)
 
-/*
+/**
  * Returns a float in Ruby.
+ *
+ * Takes a float and boxes it into an mrb_value
  */
 #ifndef MRB_WITHOUT_FLOAT
 MRB_INLINE mrb_value mrb_float_value(struct mrb_state *mrb, mrb_float f)
@@ -200,8 +217,10 @@ mrb_cptr_value(struct mrb_state *mrb, void *p)
   return v;
 }
 
-/*
+/**
  * Returns a fixnum in Ruby.
+ *
+ * Takes an integer and boxes it into an mrb_value
  */
 MRB_INLINE mrb_value mrb_fixnum_value(mrb_int i)
 {
@@ -228,8 +247,7 @@ mrb_obj_value(void *p)
   return v;
 }
 
-
-/*
+/**
  * Get a nil mrb_value object.
  *
  * @return
@@ -242,7 +260,7 @@ MRB_INLINE mrb_value mrb_nil_value(void)
   return v;
 }
 
-/*
+/**
  * Returns false in Ruby.
  */
 MRB_INLINE mrb_value mrb_false_value(void)
@@ -252,7 +270,7 @@ MRB_INLINE mrb_value mrb_false_value(void)
   return v;
 }
 
-/*
+/**
  * Returns true in Ruby.
  */
 MRB_INLINE mrb_value mrb_true_value(void)
diff --git a/include/mruby/variable.h b/include/mruby/variable.h
index ff01e5cc8..8ae33304d 100644
--- a/include/mruby/variable.h
+++ b/include/mruby/variable.h
@@ -1,5 +1,5 @@
-/*
-** mruby/variable.h - mruby variables
+/**
+** @file mruby/variable.h - mruby variables
 **
 ** See Copyright Notice in mruby.h
 */
diff --git a/include/mruby/version.h b/include/mruby/version.h
index 206078df0..3140ea481 100644
--- a/include/mruby/version.h
+++ b/include/mruby/version.h
@@ -1,5 +1,5 @@
-/*
-** mruby/version.h - mruby version definition
+/**
+** @file mruby/version.h - mruby version definition
 **
 ** See Copyright Notice in mruby.h
 */