doc: update Doxyfile template to one from newer version

We want to use the USE_MDFILE_AS_MAINPAGE option which was introduced in
doxygen 1.8.3 (released 2012-12).

Right now the new options are commented, otherwise older doxygen spews
these these warnings, which can be ignored:

warning: ignoring unsupported tag `USE_MDFILE_AS_MAINPAGE =' at line 794, file doc/Doxyfile
warning: ignoring unsupported tag `MATHJAX_FORMAT         =' at line 1210, file doc/Doxyfile
warning: ignoring unsupported tag `EXTERNAL_SEARCH        =' at line 1257, file doc/Doxyfile
warning: ignoring unsupported tag `SEARCHENGINE_URL       =' at line 1265, file doc/Doxyfile
warning: ignoring unsupported tag `SEARCHDATA_FILE        =' at line 1271, file doc/Doxyfile
warning: ignoring unsupported tag `EXTERNAL_SEARCH_ID     =' at line 1278, file doc/Doxyfile
warning: ignoring unsupported tag `EXTRA_SEARCH_MAPPINGS  =' at line 1287, file doc/Doxyfile

Signed-off-by: Ran Benita <ran234@gmail.com>

1 files changed, 94 insertions, 28 deletions

diff --git a/doc/Doxyfile.in b/doc/Doxyfile.in
index 0521467..e2b76c0 100644
--- a/doc/Doxyfile.in
+++ b/doc/Doxyfile.in
@@ -1,14 +1,14 @@
-# Doxyfile 1.8.2
+# Doxyfile 1.8.3.1
 
 # This file describes the settings to be used by the documentation system
-# doxygen (www.doxygen.org) for a project
+# doxygen (www.doxygen.org) for a project.
 #
-# All text after a hash (#) is considered a comment and will be ignored
+# All text after a hash (#) is considered a comment and will be ignored.
 # The format is:
 #       TAG = value [value, ...]
 # For lists items can also be appended using:
 #       TAG += value [value, ...]
-# Values that contain spaces should be placed between quotes (" ")
+# Values that contain spaces should be placed between quotes (" ").
 
 #---------------------------------------------------------------------------
 # Project related configuration options
@@ -445,13 +445,13 @@ INTERNAL_DOCS          = NO
 # in case and if your file system supports case sensitive file names. Windows
 # and Mac users are advised to set this option to NO.
 
-CASE_SENSE_NAMES       = NO
+CASE_SENSE_NAMES       = YES
 
 # If the HIDE_SCOPE_NAMES tag is set to NO (the default) then Doxygen
 # will show members with their full class and namespace scopes in the
 # documentation. If set to YES the scope will be hidden.
 
-HIDE_SCOPE_NAMES       = YES
+HIDE_SCOPE_NAMES       = NO
 
 # If the SHOW_INCLUDE_FILES tag is set to YES (the default) then Doxygen
 # will put a list of the files that are included by a file in the documentation
@@ -544,7 +544,8 @@ GENERATE_BUGLIST       = YES
 GENERATE_DEPRECATEDLIST= YES
 
 # The ENABLED_SECTIONS tag can be used to enable conditional
-# documentation sections, marked by \if sectionname ... \endif.
+# documentation sections, marked by \if section-label ... \endif
+# and \cond section-label ... \endcond blocks.
 
 ENABLED_SECTIONS       =
 
@@ -571,7 +572,8 @@ SHOW_USED_FILES        = 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
+# Namespaces page.
+# This will remove the Namespaces entry from the Quick Index
 # and from the Folder Tree View (if specified). The default is YES.
 
 SHOW_NAMESPACES        = YES
@@ -601,7 +603,8 @@ LAYOUT_FILE            =
 # 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.
+# feature you need bibtex and perl available in the search path. Do not use
+# file names with spaces, bibtex cannot handle them.
 
 CITE_BIB_FILES         =
 
@@ -683,7 +686,7 @@ INPUT_ENCODING         = UTF-8
 # *.hxx *.hpp *.h++ *.idl *.odl *.cs *.php *.php3 *.inc *.m *.mm *.dox *.py
 # *.f90 *.f *.for *.vhd *.vhdl
 
-FILE_PATTERNS          =
+FILE_PATTERNS          = *.c *.h
 
 # The RECURSIVE tag can be used to turn specify whether or not subdirectories
 # should be searched for input files as well. Possible values are YES and NO.
@@ -732,7 +735,7 @@ EXAMPLE_PATH           =
 # and *.h) to filter out the source-files in the directories. If left
 # blank all files are included.
 
-EXAMPLE_PATTERNS       = *
+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
@@ -752,14 +755,17 @@ IMAGE_PATH             =
 # 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
+# to standard output.
+# If FILTER_PATTERNS is specified, this tag will be
 # ignored.
 
 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:
+# 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
 # info on how filters are used. If FILTER_PATTERNS is empty or if
 # non of the patterns match the file name, INPUT_FILTER is applied.
@@ -780,6 +786,13 @@ FILTER_SOURCE_FILES    = NO
 
 FILTER_SOURCE_PATTERNS =
 
+# If the USE_MD_FILE_AS_MAINPAGE tag refers to the name of a markdown file that
+# is part of the input, its contents will be placed on the main page (index.html).
+# This can be useful if you have a project on for instance GitHub and want reuse
+# the introduction page also for the doxygen output.
+
+#USE_MDFILE_AS_MAINPAGE =
+
 #---------------------------------------------------------------------------
 # configuration options related to source browsing
 #---------------------------------------------------------------------------
@@ -817,7 +830,8 @@ REFERENCES_RELATION    = NO
 # If the REFERENCES_LINK_SOURCE tag is set to YES (the default)
 # 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.
+# link to the source code.
+# Otherwise they will link to the documentation.
 
 REFERENCES_LINK_SOURCE = YES
 
@@ -882,7 +896,7 @@ HTML_FILE_EXTENSION    = .html
 # The HTML_HEADER tag can be used to specify a personal HTML header for
 # each generated HTML page. If it is left blank doxygen will generate a
 # standard header. Note that when using a custom header you are responsible
-# for the proper inclusion of any scripts and style sheets that doxygen
+#  for the proper inclusion of any scripts and style sheets that doxygen
 # needs, which is dependent on the configuration options used.
 # It is advised to generate a default header using "doxygen -w html
 # header.html footer.html stylesheet.css YourConfigFile" and then modify
@@ -1109,7 +1123,7 @@ QHP_SECT_FILTER_ATTRS  =
 QHG_LOCATION           =
 
 # If the GENERATE_ECLIPSEHELP tag is set to YES, additional index files
-# will be generated, which together with the HTML files, form an Eclipse help
+#  will be generated, which together with the HTML files, 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
@@ -1188,13 +1202,21 @@ FORMULA_TRANSPARENT    = YES
 
 USE_MATHJAX            = NO
 
+# When MathJax is enabled you can set the default output format to be used for
+# thA MathJax output. Supported types are HTML-CSS, NativeMML (i.e. MathML) and
+# SVG. The default value is HTML-CSS, which is slower, but has the best
+# compatibility.
+
+#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
+# installing MathJax.
+# However, it is strongly recommended to install a local
 # copy of MathJax from http://www.mathjax.org before deployment.
 
 MATHJAX_RELPATH        = http://cdn.mathjax.org/mathjax/latest
@@ -1215,15 +1237,55 @@ MATHJAX_EXTENSIONS     =
 SEARCHENGINE           = NO
 
 # When the SERVER_BASED_SEARCH tag is enabled the search engine will be
-# implemented using a PHP enabled web server instead of at the web client
-# using Javascript. Doxygen will generate the search PHP script and index
-# file to put on the web server. The advantage of the server
-# based approach is that it scales better to large projects and allows
-# full text search. The disadvantages are that it is more difficult to setup
-# and does not have live searching capabilities.
+# implemented using a web server instead of a web client using Javascript.
+# There are two flavours of web server based search 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 manual for details.
 
 SERVER_BASED_SEARCH    = NO
 
+# When EXTERNAL_SEARCH 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 the manual for configuration details.
+
+#EXTERNAL_SEARCH        = NO
+
+# The SEARCHENGINE_URL should point to a search engine hosted by a web server
+# which will returned the search results when EXTERNAL_SEARCH is enabled.
+# Doxygen ships with an example search engine (doxysearch) which is based on
+# the open source search engine library Xapian. See the manual for configuration
+# details.
+
+#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.
+
+#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.
+
+#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 = id1=loc1 id2=loc2 ...
+
+#EXTRA_SEARCH_MAPPINGS  =
+
 #---------------------------------------------------------------------------
 # configuration options related to the LaTeX output
 #---------------------------------------------------------------------------
@@ -1459,8 +1521,10 @@ GENERATE_PERLMOD       = NO
 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
+# 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.
 
@@ -1546,9 +1610,11 @@ SKIP_FUNCTION_MACROS   = YES
 # The TAGFILES option can be used to specify one or more tagfiles. 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 ...
+#
+# TAGFILES = file1 file2 ...
 # Adding location for the tag files is done as follows:
-#   TAGFILES = file1=loc1 "file2 = loc2" ...
+#
+# TAGFILES = file1=loc1 "file2 = loc2" ...
 # where "loc1" and "loc2" can be relative or absolute paths
 # or URLs. Note that 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