Moved the *duplicate C object description* warnings for function
declarations in the nitpicky mode. In nitpick mode, you can suppress
those warnings (e.g. ioctl) with::
nitpicky = True
nitpick_ignore = [
("c:func", "ioctl"),
]
See Sphinx documentation for the config values for ``nitpick`` and
``nitpick_ignore`` [1].
With this change all the ".. cpp:function:: int ioctl(..)" descriptions
(found in the media book) can be migrated to ".. c:function:: int
ioctl(..)", without getting any warnings. E.g.::
.. cpp:function:: int ioctl( int fd, int request, struct cec_event *argp )
.. c:function:: int ioctl( int fd, int request, struct cec_event *argp )
The main effect, is that we get those *CPP-types* back into Sphinx's C-
namespace and we need no longer to distinguish between c/cpp references,
when we refer a function like the ioctl.
[1] http://www.sphinx-doc.org/en/stable/config.html?highlight=nitpick#confval-nitpicky
Signed-off-by: Markus Heiser <markus.heiser@darmarIT.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Add option 'name' to the "c:function:" directive. With option 'name'
the ref-name of a function can be modified. E.g.::
.. c:function:: int ioctl( int fd, int request )
:name: VIDIOC_LOG_STATUS
The func-name (e.g. ioctl) remains in the output but the ref-name
changed from ``ioctl`` to ``VIDIOC_LOG_STATUS``. The index entry for
this function is also changed to ``VIDIOC_LOG_STATUS`` and the function
can now referenced by::
:c:func:`VIDIOC_LOG_STATUS`
Signed-off-by: Markus Heiser <markus.heiser@darmarIT.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Add a sphinx-extension to customize the sphinx c-domain. No functional
changes right yet, just the boilerplate code.
Signed-off-by: Markus Heiser <markus.heiser@darmarIT.de>
[ jc: coding-style tweak ]
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Let's escape the LaTeX characters, to avoid troubles when
outputing them.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Add a generic way to build only a reST sub-folder with or
without a individual *build-theme*.
* control *sub-folders* by environment SPHINXDIRS
* control *build-theme* by environment SPHINX_CONF
Folders with a conf.py file, matching $(srctree)/Documentation/*/conf.py
can be build and distributed *stand-alone*. E.g. to compile only the
html of 'media' and 'gpu' folder use::
make SPHINXDIRS="media gpu" htmldocs
To use an additional sphinx-build configuration (*build-theme*) set the
name of the configuration file to SPHINX_CONF. E.g. to compile only the
html of 'media' with the *nit-picking* build use::
make SPHINXDIRS=media SPHINX_CONF=conf_nitpick.py htmldocs
With this, the Documentation/conf.py is read first and updated with the
configuration values from the Documentation/media/conf_nitpick.py.
Signed-off-by: Markus Heiser <markus.heiser@darmarIT.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* 'docs-next' of git://git.lwn.net/linux:
doc-rst: kernel-doc: fix handling of address_space tags
Revert "doc/sphinx: Enable keep_warnings"
doc-rst: kernel-doc directive, fix state machine reporter
docs: deprecate kernel-doc-nano-HOWTO.txt
doc/sphinx: Enable keep_warnings
Documentation: add watermark_scale_factor to the list of vm systcl file
kernel-doc: Fix up warning output
docs: Get rid of some kernel-documentation warnings
Add a reporter replacement that assigns the correct source name and line
number to a system message, as recorded in a ViewList.
[1] http://mid.gmane.org/CAKMK7uFMQ2wOp99t-8v06Om78mi9OvRZWuQsFJD55QA20BB3iw@mail.gmail.com
Signed-off-by: Markus Heiser <markus.heiser@darmarIT.de>
Tested-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The function that replace references add a "\ " at the end of
references, to avoid the ReST markup parser to not identify
them as references. That works fine except for the end of lines,
as a sequence of { '\', ' ', '\n' } characters makes Sphinx
to ignore the end of line. So, strip those escape/spaces at the
end of lines.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
The kernel-include directive is needed to include the auto generated rst
content from a build (pre-) process. E.g. the linux_tv Makefile
generates intermediate reST-files from header files. Since there is a O=
option:
make O=dir [targets] Locate all output files in "dir"
We need to include intermediate reST files from arbitrary (O=/tmp/foo)
locations:
The 'kernel-include' reST-directive is a replacement for the 'include'
directive. The 'kernel-include' directive expand environment variables
in the path name and allows to include files from arbitrary locations.
.. hint::
Including files from arbitrary locations (e.g. from '/etc') is a
security risk for builders. This is why the 'include' directive from
docutils *prohibit* pathnames pointing to locations *above* the
filesystem tree where the reST document with the include directive is
placed.
Substrings of the form $name or ${name} are replaced by the value of
environment variable name. Malformed variable names and references to
non-existing variables are left unchanged.
Signed-off-by: Markus Heiser <markus.heiser@darmarIT.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Add one extra escape character to avoid those warnings:
Documentation/linux_tv/videodev2.h.rst:6: WARNING: Inline substitution_reference start-string without end-string.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
At videodev2.h, we have hundreds of symbols that don't
currently have a reference yet. Let's ignore for how, while
we don't improve those cross-refs.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
We should not let comments to mangle with the symbols
parsing. Unfortunately, videodev2.h has lots of those
in the middle of enums and structs. So, we need to improve
our parser to discard them.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
The typedef handler should do two things to be generic:
1) parse typedef enums;
2) accept both possible syntaxes:
typedef struct foo { .. } foo_t;
typedef struct { .. } foo_t;
Unfortunately, this is needed to parse some legacy DVB
files, like dvb/audio.h.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
When typedef is used on its multiline format, we need to
also parse enum and struct in the same line.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Be more formal about the valid symbols that are expected by
the parser, to match what c language expects.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
The dmx.h header has two things that causes the parser to
break while handling enums:
per-header enums and the '{' starts on a new line
Both makes the parser to get lexical marks to be detected
as if they were symbols.
Fix it.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
As we had to escape the symbols for the ReST markup to not do
the wrong thing, the logic to discover start/end of strings
are not trivial. Improve the end delimiter detection, in order
to highlight more occurrences of the strings.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This script parses a header file and converts it into a
parsed-literal block, creating references for ioctls,
defines, typedefs, enums and structs.
It also allow an external file to modify the rules, in
order to fix the expressions.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Implements the reST flat-table directive.
The ``flat-table`` is a double-stage list similar to the ``list-table`` with
some additional features:
* column-span: with the role ``cspan`` a cell can be extended through
additional columns
* row-span: with the role ``rspan`` a cell can be extended through
additional rows
* auto span rightmost cell of a table row over the missing cells on the right
side of that table-row. With Option ``:fill-cells:`` this behavior can
changed from *auto span* to *auto fill*, which automaticly inserts (empty)
list tables
The *list tables* formats are double stage lists. Compared to the
ASCII-art they migth be less comfortable for readers of the
text-files. Their advantage is, that they are easy to create/modify
and that the diff of a modification is much more meaningfull, because
it is limited to the modified content.
The initial implementation was taken from the sphkerneldoc project [1]
[1] https://github.com/return42/sphkerneldoc/commits/master/scripts/site-python/linuxdoc/rstFlatTable.py
Signed-off-by: Markus Heiser <markus.heiser@darmarIT.de>
[jc: fixed typos and misspellings in the docs]
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Let the user specify file patterns where to look for the EXPORT_SYMBOLs
in addition to the file with kernel-doc comments. This is directly based
on the -export-file FILE option added to kernel-doc in "kernel-doc: add
support for specifying extra files for EXPORT_SYMBOLs", but we extend
that with globbing patterns in the Sphinx extension.
The file patterns are added as options to the :export: and :internal:
arguments of the kernel-doc directive. For example, to extract the
documentation of exported functions from include/net/mac80211.h:
.. kernel-doc:: include/net/mac80211.h
:export: net/mac80211/*.c
Without the file pattern, no exported functions would be found, as the
EXPORT_SYMBOLs are placed in the various source files under
net/mac80211.
The matched files are also added as dependencies on the document in
Sphinx, as they may affect the output. This is one of the reasons to do
the globbing in the Sphinx extension instead of in scripts/kernel-doc.
The file pattern remains optional, and is not needed if the kernel-doc
comments and EXPORT_SYMBOLs are placed in the source file passed in as
the main argument to the kernel-doc directive. This is the most common
case across the kernel source tree.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Design is pretty simple: kernel-doc inserts breadcrumbs with line
numbers, and sphinx picks them up. At first I went with a sphinx
comment, but inserting those at random places seriously upsets the
parser, and must be filtered. Hence why this version now uses "#define
LINEO " since one of these ever escape into output it's pretty clear
there is a bug.
It seems to work well, and at least the 2-3 errors where sphinx
complained about something that was not correct in kernel-doc text the
line numbers matched up perfectly.
v2: Instead of noodling around in the parser state machine, create
a ViewList and parse it ourselves. This seems to be the recommended
way, per Jani's suggestion.
v3:
- Split out ViewList pach. Splitting the kernel-doc changes from the
sphinx ones isn't possible, since emitting the LINENO lines wreaks
havoc with the rst formatting. We must filter them.
- Improve the regex per Jani's suggestions, and compile it just once
for speed.
- Now that LINENO lines are eaten, also add them to function parameter
descriptions. Much less content and offset than for in-line struct
member descriptions, but still nice to know which exact continuation
line upsets sphinx.
- Simplify/clarify the line +/-1 business a bit.
v4: Split out the scripts/kernel-doc changes and make line-numbers
opt-in, as suggested by Jani.
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: linux-doc@vger.kernel.org
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Instead of just forcefully inserting our kernel-doc input and letting
the state machine stumble over it the recommended way is to create
ViewList, parse that and then return the list of parsed nodes.
Suggested by Jani.
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: linux-doc@vger.kernel.org
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
With this error output becomes almost readable. The line numbers are
still totally bonghits, but that's a lot harder to pull out of
kerneldoc. We'd essentially have to insert some special markers in the
kernel-doc output, split the output along these markers and then
insert each block separately using
state_machine.insert_input(block, source, first_line)
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: linux-doc@vger.kernel.org
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reconcile differences between python2 and python3 on dealing with
stdout, stderr from Popen. This fixes "name 'unicode' is not defined"
errors on python3. We'll need to try to keep the extension working on
both python-sphinx and python3-sphinx so we don't need two copies.
Reported-and-tested-by: Marius Vlad <marius.c.vlad@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
This script uses pandoc to convert existing DocBook template files to RST
templates. A couple of sed scripts are need to massage things both before
and after the conversion, but the result is then usable with no hand
editing.
[Jani: Change usage to tmplcvt <in> <out>. Fix escaping for docproc
directives. Add support the new kernel-doc extension.]
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Add an extension to handle kernel-doc directives, to call kernel-doc
according to the arguments and parameters given to the reStructuredText
directive.
The syntax for the kernel-doc directive is:
.. kernel-doc:: FILENAME
:export:
:internal:
:functions: FUNCTION [FUNCTION ...]
:doc: SECTION TITLE
Of the directive options export, internal, functions, and doc, currently
only one option may be given at a time.
The FILENAME is relative from the kernel source tree root.
The extension notifies Sphinx about the document dependency on FILENAME,
causing the document to be rebuilt when the file has been changed.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Markus Heiser