We can get something generated quickly by finding the INPUT variable in the generated Doxyfile and pointing it at our code: INPUT =. To generate the documentation for your project Now edit the configuration file and enter You should get a message like: Configuration file `Doxyfile' created. Make sure the Doxygen executable is on your path and run: > mkdir docs
#Doxygen pdf how to#
If you don’t already have Doxygen set up for your project, you’ll need to generate a configuration file so that it knows how to generate docs for your interfaces. Now that we have our library, we can set up document generation. If you now build your project, you should get a CatCutifier library which someone could link against and use. Target_include_directories(CatCutifier PUBLIC. } CatCutifier/CatCutifier/CMakeLists.txt add_library (CatCutifier "CatCutifier.cpp" "CatCutifier.h") } CatCutifier/CatCutifier/CatCutifier.h #pragma once Regardless of which IDE/editor you are using, get your project folder to look something like this: CatCutifier/CMakeLists.txt cmake_minimum_required (VERSION 3.8)Īdd_subdirectory ("CatCutifier") CatCutifier/CatCutifier/CatCutifier.cpp #include "CatCutifier.h" If you are using Visual Studio 2017 and up, go to File > New > Project and create a CMake project.
#Doxygen pdf code#
Create a CMake ProjectĪll of the code for this post is available on Github, so if you get stuck, have a look there. See CMake projects in Visual Studio for more details. If you are using Visual Studio 2017 and up, you will already have a version installed and ready to use.
#Doxygen pdf install#
You can install it with pip: > pip install breathe CMake I prefer this theme to the built-in ones, so we can install it through pip: > pip install sphinx_rtd_theme Breatheīreathe is the bridge between Doxygen and Sphinx taking the output from the former and making it available through some special directives in the latter. It may be available through your system package manager, or you can get it through pip. Pick your preferred way of installing Sphinx from the official instructions. There are binaries for Windows, Linux (compiled on Ubuntu 16.04), and MacOS, alongside source which you can build yourself.
#Doxygen pdf download#
Grab it from the official download page and install it. We can use Doxygen to do this job for us. Sphinx doesn’t have the ability to extract API documentation from C++ headers this needs to be supplied either by hand or from some external tool. If you’re convinced that this is a good avenue to explore, then we can begin by installing dependencies. In Sphinx however, the finer-grained control gives you the ability to write documentation which is truly geared towards getting people to learn and understand your library. It’s essentially paraphrasing the header files, to take a phrase from Robert Ramey embedding things like rationale, examples, notes, or swapping out auto-generated output for hand-written is not very well supported. On a more fundamental level, Doxygen’s style of documentation is listing out all the API entities along with their associated comments in a more digestible, searchable manner. The docs generated by Sphinx also look a lot more modern and minimal when compared to Doxygen and it’s much easier to swap in a different theme, customize the amount of information which is displayed, and modify the layout of the pages. There are some great comparisons of reStructuredText and Markdown by Victor Zverovich and Eli Bendersky if you’d like some more information. One can add their own “roles” and “directives” to the markup to make domain-specific customizations. Sphinx instead uses reStructuredText, which has those important concepts which are missing from Markdown as core ideals. Although they added Markdown support in 2012, Markdown is simply not the best tool for writing technical documentation since it sacrifices extensibility, featureset size, and semantic markup for simplicity. There are also limitations to its markup. Docs generated with Doxygen tend to be visually noisy, have a style out of the early nineties, and struggle to clearly represent complex template-based APIs. Why Sphinx?ĭoxygen has been around for a couple of decades and is a stable, feature-rich tool for generating documentation. We’ll also integrate this process into a CMake build system so that we have a unified workflow.įor an example of a real-world project whose documentation is built like this, see fmtlib. This post will show you how to use Sphinx to generate attractive, functional documentation for C++ libraries, supplied with information from Doxygen. Tools can’t solve this problem in themselves, but they can ease the pain.
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