Doxygen does not process my source file comments - doxygen

I'm new with Doxygen, and i have been commenting my functions with the Qt style approach:
/*! .. */
Doxygen however only picks up my header files and does not generate documentation of any text that is within these comments.
The html file rendered, shows a completely empty main page, "Classes' only list the structs
that are found in the header files and "Files" lists only the same header files in the project.
What may cause this behavior, or is this to be expected?
Am i missing something? The only thing i changed in the configuration file was the INPUT directory to be "src".
No errors during compilation, i see that it is preprocessing and parsing my .c files. And at some point it says this, but only for the header files
Generating code for file src/foo.h...
Generating code for file src/bar.h...
etc.
Finally i get some warnings about structs not being documented, but nothing about the functions I want to have actually documented.

Related

Cond statement doxygen does not work

I am trying to separate out internal and external documentation using the doxygen constructs of cond; but i just cant seem to get get it working. I would essentially like to exclude some files completely and not conditionally. Regardless of where i add the tag (before include, before header guards etc) , the files and source both show up.
What i have tried in vain is to take the test file from doxegen repo for
conditional test and add it to the project.
Steps to reproduce [Linux]
create a new directory.
copy paste the above file (had to rename it to .h as .c was passed over?).
generate dummy config via doxygen -g.
update Doxyfile ENABLED_SECTION = COND_ENABLED.
Run doxygen.
check html/index.html
This however is still visible in the html documentation it generates for the project. I have set the ENABLED_SECTION variable with other values , but cond_enabled function still shows up. Running the testing directory of the project (doxygen) it passes. So i am lost.
Any suggestions?
Tried with latest version 1.8.14.
Thanks!
Regarding the \cond problems (not an answer directly to the real problem you face, I think, but to long for a comment).
The mentioned file is used in the, limited, testing doxygen can do / does and the first lines contain some instructions on what to do. Furthermore there is a default Doxyfile with the tests in use. It is hard to run a separate test outside the doxygen build tree.
Regarding the remark "Running the testing directory of the project (doxygen) it passes." This is correct, here, at the moment, only testing is done against the XML output and the generated output is compared to a once created version of the XML output. No tests are done, at the moment, in respect to HTML or PDF / LaTeX. Recently the test framework has been slightly extended so in the future this should be possible (compare the xhtml and tex output, but some work has still to be done here).
The version of the parser sees the \cond in the first line (normal C comment) as a doxygen command and skips everything till the first \endcond (your friend in these cases is always doxygen -d preprocessor). I think that removing / modifying the first line will result in an already better result. There is however another hiccup for e.g. HTML output. As the function cond_enabled is not documented and EXPAND_ALL is not set to YES the function will not appear in the documentation. So best is also to add a line of documentation with the function cond_enabled.
Regarding the seen HTML problems I modified the the relevant test in doxygen slightly and pushed a proposed patch to github (pull request 714, https://github.com/doxygen/doxygen/pull/714).
Note: the problem of skipping the \cond in normal C comment is quite a bit harder to implement (seen the logical complexity of the doxygen code in pre.l and commentcnv.l.
EDIT: 2018/06/10: The push request has been integrated in the master version on github.

Doxygen-produced PDF - change url color?

I’m using Doxygen 1.8.10 (on Windows) to generate LaTeX files, and MiKTex 2.9 to generate a PDF. The PDF is functional, but not very pretty. I’ve figured out how to customize the title page (I added graphics and non-default text) and how to get the images into the PDF.
But... how do I change the styling for things such as the color of URLs (which are just text in the Doxygen comments, and then Doxygen turns them into \href items)?
**** I believe I need to change something in the hyperref package’s config or what Doxygen writes to the .tex files, but I’m not sure which approach is right, nor how to do either one...
I’ve created a custom_doxygen.sty file, and assigned it to the LATEX_EXTRA_STYLESHEET. I assume that it’s being picked up by Doxygen because Doxygen is successfully picking up my custom LATEX_HEADER file, which is in the same directory as the custom_doxygen.sty file. But what I don’t know is what to put into the custom_doxygen.sty file?
If I run everything as default (that is, no LATEX_EXTRA_STYLESHEET), the following code gets written to the refman.tex file:
% Hyperlinks (required, but should be loaded last)
\usepackage{ifpdf}
\ifpdf
\usepackage[pdftex,pagebackref=true]{hyperref}
\else
\usepackage[ps2pdf,pagebackref=true]{hyperref}
\fi
\hypersetup{%
colorlinks=true,%
linkcolor=blue,%
citecolor=blue,%
unicode%
}
And what I need is for the “urlcolor” to also be blue (its default in the hyperref package is magenta—an odd choice for sure).
I tried just basically copying what was in the refman.tex file to the custom_doxygen.sty file (and making sure that the custom_doxygen.sty file is assigned to the LATEX_EXTRA_STYLESHEET setting in my Doxyfile) and adding a “urlcolor=blue,%” to the setup section, but there’s no change in the output.
If I manually edit the refman.tex file (that is, I add "citecolor=blue,%" to the \hypersetup) after it's output from Doxygen, and then use the edited file as input to MiKTeX, I get the desired output.
So a workaround could be to just script the desired change and run the script every time. But it would be certainly be better to get Doxygen to write the necessary configuration. Plus, there are other things I want to customize (such as the font of explicit html hrefs), so I'd like to learn how to do things properly.

Does Doxygen look at the source file names while generating the pdf?

I have very starnge behavior with doxygen. I have source file named as Float32Add.c, when i try to generate the pdf document using doxygen, the documentation does not appear. When i change the same source file name(.c), for e.g. try.c the documentation inside the source file appears (I didnt modify anything except the src file name). I also verified length of the source file is not a problem. Is there any property thats i can look and it helps. Any help regarding this would be appreciated

How to ignore generated code in doxygen

So, we are using doxygen in a big project.
Some of the source code is generated during the build,
like my_generated_code_fragment.h
It is used in the source code, like this
file foo.cc
void foo()
{
#include "my_generated_code_fragment.h"
}
Now, when running doxygen from the repository under source control,
doxygen rightly complain that file my_generated_code_fragment.h is missing,
with an error like:
foo.cc:1234: warning: include file my_generated_code_fragment.h not
found, perhaps you forgot to add its directory to INCLUDE_PATH?
Problem
We don't want to perform a full build first, just to generate the missing
files, in order to generate documentation.
Note that the generated code does not contain doxygen comments anyway.
Solution considered so far
Do Nothing
Do nothing and ignore doxygen errors.
Not really satisfactory.
Generate dummy files
Generate dummy files like my_generated_code_fragment.h prior to running
doxygen.
This creates complications in the build scripts,
where "using doxygen" is now different on different projects,
because the files containing generated code differs.
Use preprocessor flags
Change the code to
void foo()
{
#ifndef IN_DOXYGEN
#include "my_generated_code_fragment.h"
#undef IN_DOXYGEN
}
and set PREDEFINED
This is the best solution considered so far, but it means changing the code.
Question
Is there a better option, like tell doxygen using a setting in Doxyfile
that file my_generated_code_fragment.h is expected to be missing,
and should be ignored ?
Note:
EXCLUDE does not work for this,
as the error is seen when parsing file foo.cc, not when parsing the generated code.
Using doxygen version 1.8.5 at the moment.
Documenting the solution taken then.
Solution 3, to use pre-processor flags when building with doxygen, and changing the (small) parts of the code that uses generated content worked well.
This allows to use doxygen on "raw" source code, pulled from git.

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.