If - is used for configName doxygen will write to standard output.Ģ) Use doxygen to update an old configuration file:ģ) Use doxygen to generate documentation using an existing configuration file: The sample output should be like this- Doxygen version 1.8.11ġ) Use doxygen to generate a template configuration file: To get the more information about Doxygen, use the following command – $ doxygen -help Get:5 xenial/main amd64 doxygen amd64 1.8.11-1 The following NEW packages will be installed:ĭoxygen libclang1-3.6 libllvm3.6v5 libobjc-5-dev libobjc4Ġ upgraded, 5 newly installed, 0 to remove and 26 not upgraded.Īfter this operation, 64.0 MB of additional disk space will be used. Libclang1-3.6 libllvm3.6v5 libobjc-5-dev libobjc4ĭoxygen-latex doxygen-doc doxygen-gui graphviz The following additional packages will be installed: Use 'sudo apt autoremove' to remove them. Libterm-readkey-perl linux-headers-4.4.0-31 linux-headers-4.4.0-31-generic The following packages were automatically installed and are no longer required: The sample output should be like this – Reading package lists. To install Doxygen, use the following command – $ sudo apt-get install doxygen This article explains about-“how to install Doxygen on Ubuntu” Go ahead try Doxygen and see! In the next part of this article, we'll see about eclox, the eclipse plugin for Doxygen.Doxygen is the de facto regular tool for generating documentation from annotated C++ sources, however, it additionally supports different wellknown programming languages akin to C, objective-C, C#, Hypertext Preprocessor, Java, Python, IDL (Corba, Microsoft, and UNO/OpenOffice flavors), Fortran, VHDL and Tcl. Once the documentation is generated, we can start navigating from whatever is the main class method and click on the call-graph functions to navigate through the entire code. Of course, it takes a bit of time to generate the call-graphs. In the Diagrams tab, we will have to select the Call graphs option to generate the call graphs. The Doxygen documentation page has very clear steps on how to use the wizard to generate the documentation. dot tool is a part of the Graphviz package that helps generate the call-graphs. We can use either to generate the documentation, however for newbies, the wizard will help to generate the configuration file necessary to generate the documentation To generate the call graphs, Doxygen requires the dot tool to be available in the path. Doxygen provides both the command-line version and a wizard that guides us through the documentation generation process So to understand the code first, call-graphs are a great way to understand the code flow, even if the code is poorly or even not documented. Call graphs are control flow graphs that show what all functions/methods a particular function/method calls.Īn example of a call-graph would be like the diagram below Doxygen has a great feature of generating something called call-graphs. It also supports a variety of output formats.ĭoxygen has a robust and big set of features that this article's space is too small to contain, so we will look at it from the perspective of understanding code. It supports these source languages out of the box - C/C++, Java, Python, VHDL, PHP IDL, C#, Fortran, Objective-C 2.0, and to some extent D. The beauty of Doxygen is it has features to help understand code better even if the code is not documented properly. Javadoc for example is very popular because of the way the code documentation is organized. There are other tools documentation generators too. It would be great if they had somewhere to start and understand the code that they are going to breathe through.Įnter Doxygen! Doxygen has been there for almost a quarter of a century, written by Dimitri van Heesch. Sometimes the situation is developers don't know where to begin and understanding it is, even more, a herculean task. The plight is usually for the developers who are tasked to maintain a code that is written by someone else. It would be a nightmare if the code is not documented. Going through the code and understanding it is a daunting task, especially if the code is written by someone else.
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