Doxygen \cite producing empty bibliography - doxygen

I'm trying to use \cite in Doxygen to produce a bibliography page and also a reference within my text. I have bibtex in my search path and a proper .bib file. I have added the .bib file to CITE_BIB_FILES and am using a proper BibTex label found in the .bib file. Doxygen is creating a bibliography page, but it is empty. It is also creating a citation link in the documentation text, but the link is also empty. Any idea how I can get the citation info displayed?

I was facing the same problem. There is an perl dependency to generate citation. So you must have both perl and bibtex in the system path.
Ignore the example above, that only applies to Latex, for doxygen use (Note: no braces):
\cite Hale
The .bib file has to be located in doxygen working directory.
Bibliographic References HTML page will be then produced by doxygen with:
[1]J. K. Hale. Theory of functional–differential equations. Springer–Verlag, Berlin–Heidelberg–New York, 1977.
for the following bib entry:
#BOOK{Hale,
author = "J. K. Hale",
title = "Theory of functional--differential equations",
publisher = "Springer--Verlag, Berlin--Heidelberg--New York",
year = 1977
}

In order for \cite to work properly you need:
be sure to put your file.bib in the working directory where you call doxygen Doxyfile
bibtex executable must be in the search path
perl executable must be in the search path
the RefName used in \cite RefName must have a corresponding entry in file.bib

Maybe a little late, but I had the same problem. Doxygen generated a bibliography for LaTeX output, but not for HTML output and none of the proposed answers worked for me.
As suggested by #Raffi, this seems to be a bug in Doxygen < 1.8.3. I used Doxygen 1.8.1.1 and it did not work. Then I installed Doxygen 1.8.3.1 without changing anything else and it worked fine.

When you set CITE_BIB_FILES in DoxyFile did you include the .bib extension on the filename?
Doxygen claims it will automatically add the .bib extension, but if you omit it doxygen seems to gets confused and doesn't generate the citelist.doc file properly.
Include .bib in the filename and it should work fine, at least that is the case for me.

In order to create a bibliography you need to instal Perl, and add it to the search path, along with bibtex. In the documentation
for CITE_BIB_FILES it says:
"The CITE_BIB_FILES ... To use this feature you need bibtex and perl available in the search path ... "

Related

Doxygen: how to include a markdown page to document a group

I have a rather complex project and I want to document it using doxygen.
I have no problem documenting the code and I also managed to have a nice front-page using a custom README.md file coupled with "USE_MDFILE_AS_MAINPAGE = README.md" directive in Doxyfile.
I defined several groups (#defgroup) which show up as "Modules" in my documentation.
I would like to add a "main page" to each of the group giving general information, beside the customary function/variable/type documentation.
I tried adding custom MODULENAME.md files coupled with matching #includedoc MODULENAME.md entries in group definition, it seem to work (I see several lines like: "Generating docs for page md_mcu_noitr_coro_README..."), but I cannot find if and where the page is linked (I expected to see it in the "Detailed Description" for the module, as it happens if I put some documentation inline where I put the "#includedoc" directive.
a snippet of one of my modules is:
/**
* #file coro.h
* #brief definition of coroutine implementing functions.
*
* #date: Feb 8, 2018
* #author: myself
*
* #defgroup coro "Coroutine implementation in plain 'C'."
*
* #includedoc mcu_noitr/coro/README.md
* #{
*
*/
What am I doing wrong?
Note: it is also a bit surprising I need to put the whole path from where my Doxyfile is, otherwise doxygen won't find it even if it's right beside the file containing the #includedoc command.
I also came across the problem that included files with Markdown formatted text via \includedoc or \include{doc} does not result in correctly interpreted Markdown. Note that I included Markdown files from other Markdown files. My work-around was to use the C pre-processor (cpp) - which is widely available - on Markdown files and use it's #include directive. You could of course use a true general text processor such as M4 as suggested in the cpp man page. Set FILTER_PATTERNS in Doxyfile as:
FILTER_PATTERNS = *.md="cpp -P -traditional-cpp"
You'll need the -P option to avoid it outputting line markers, which confuses Doxygen. -traditional-cpp was needed to avoid cpp eating white space that is important for the correct interpretation of Markdown. Don't use single quotes as this results in an error when Doxygen calls cpp via sh.
Then in my Markdown main page:
Main Page {#mainpage}
==========
Blah blah blah.
#include "other.md"
Using FILTER_PATTERNS instead of INPUT_FILTER avoids the problem about not being allowed to add or remove lines.
I have my markdown files in the same directory, I would guess that if they are located in different places you could tell cpp about it via -I, which would address your expectations about include paths on the issue you filed.
At the moment doxygen does not consider the fact that commands like \includedoc can contain markdown code. At the moment the only possibility would be to write a filter, see configuration parateter INPUT_FILTER in the doxygen configuration file, (not tested!) to replace the \includedoc` with the code of that file.

how to create a Doxygen link to the same file

I would like to write a Doxygen comment that names the file in which the comment occurs. Rather than write the filename explicitly, I would like Doxygen to supply me with it. Thus, if I change the name of the file, or move some of the content into a different file, I don't need to change hard-coded instances of the name.
For a concrete example, let's say I'm adding comments to functions in array.hpp, and I want the comment for certain functions to say "This function should only be used within array.hpp." I want to be able to write
/**
* This function should only be used within #thisfile.
*/
where #thisfile is a Doxygen expression that translates into array.hpp within the file array.hpp.
I've looked at the Doxygen documentation, including "Automatic link generation/Links to files" and the entire "Special Commands" section, but I haven't found what I'm looking for. Does such functionality exist?
Note that essentially the same question was asked on the Doxygen mailing list a few weeks ago. It has not received any replies.
General
As far as I know such functionality does not exist out-of-the-box. But you can add it by configuring an INPUT_FILTER in your Doxyfile. The path to the file is passed as an argument to the filter by doxygen. This can be used by the filter to replace your keyword (for example #thisfile) with the path to the file.
Below I give an example how to implement this with bash. A solution for other shells or Windows should be quite similar.
Example for bash
Write a short bash script infiltrate_filename.sh:
#!/bin/bash
pathToScript=`pwd`"/"
sed -e "s:#thisfile:${1/$pathToScript/}:g" $1
This script truncates the path to the file by the working directory. The resulting string is used to replace the keyword of your choice (here: #thisfile).
Make your script executable: chmod +x infiltrate_filename.sh
Set the INPUT_FILTER in your Doxyfile to INPUT_FILTER = ./infiltrate_filename.sh
That's it! 🎉 Now you can use #thisfile in your documentation blocks and it will be replaced by the path to the file. As the paths are relative to Doxygen's working directory they will automatically be linked to the file.
Notes
This solution assumes that the filter script is located in the working directory of doxygen (for example ~/my_project) and that the INPUT files are in subdirectories of the working directory (for example ~/my_project/src/foo/bar).
I have tested this example on a minimum working example. I am not a bash or sed expert. This solution may be improvable.

Include an external .md file in a docblock?

There are doxygen commands #include, #htmlinclude, #verbinclude and the rest of the family. Each of them is equivalent to inlcuding the file inline and surrounding it with a pair of start and end tags like #code, #htmlonly, #verbatim etc.
For the life of me, I cannot find the doxygen command equivalent to just pasting a markdown file into the docblock without surrounding it with any tags that modify the interpretation of the included fragment.
Is this possible? How?

Include *prewritten* documentation in Doxygen

To distinguish this question from Doxygen: Adding a custom link under the "Related Pages" section which has an accepted answer that is not a real answer to the question, I specifically add prewritten to the question.
What I want:
Write one document tex file (without preamble, since this file will be \input-ed into a full document)
Import the document into Doxygen's HTML output.
Using Doxygen to produce tex file will probably not work, since it does too much layout work [This holds for its HTML output too like empty table rows 2015]. If Doxygen takes some other input that can easily be transformed into LaTeX, that will do.
You can easily add an already existing Latex file to your doxygen documentation using \latexonly\input{yourfile}\endlatexonly.
I would assume you put it e.g. under a doxygen \page.

Issue with doxygen .dox files

I am trying to run doxygen on some source files for a project that I downloaded source files for. The files are located in the following directories:
doc/ - Documentation files, such as .dox files.
src/ - Source files
My settings in my doxygen.config file are:
INPUT = ../ .
FILE_PATTERNS = *.h *.dox *.dxx
When I run doxygen (doxygen doxygen.config), it generates all of the documentation from the .h files correctly, but it does not generate the mainpage correctly. I have a file titled intro.dox in the doc folder, with a command \mainpage Documentation Index, and a bunch of text, but doxygen is not using this to generate the main page.
What am I doing wrong?
There are (at least) two possible reasons for this:
You are not including the /doc directory in you INPUT list. Try modifying this to
INPUT = ../ . ../doc
Did you mean to write ../doc instead of ../? I am guessing that your doxygen.config file is in your src directory. If this is not the case can you make this clear in the question.
Doxygen requires that your documentation files (your .dox files) are plain text with your text wrapped with Doxygen C++ comments (i.e. /** ... */).
Without knowing where doxygen.config is located, and since you are using relative paths in INPUT, it is difficult to determine what might cause this, however since the files you are looking for are in parallel directories, it is possible that doxygen is not search recursively for your files. You may want to confirm that RECURSIVE is set to YES in doxygen.config.