Follow the installation instructions, also install GraphViz, this will allow you to create nicer graphics using the dot-tool.Go the the doxygen- download page and find the distribution which is right for you (Windows-users: there are binary installers, no hassle with compilations □ ).Configuring Doxygenīefore you can start you will need to install doxygen: ![]() In this tutorial, the doxygen tool is used, as it provides a wide range of options, is multi-platform, supports multiple languages and multiple output formats.Īs you might already expect, Object Oriented Fortran (f2003) is a bit more complicated to document than procedural Fortran, but with some ingenuity doxygen can be made to provide nice documentation even in this case. One unfortunate aspect is the fact that most of these tools use different formatting conventions, so switching from one to the another is not an exercise to perform lightly. It is very flexible, and easy to use and can produce documentation in html, pdf, man-pages, rtf,… out of the box.Īs you can see, there is a lot to choose from, all with their own quirks and features. Doxygen : A multi-platform automatic documentation tool developed for C++, but extended to many other languages including fortran.FORD : Ford is a documentation tool written in python, aimed at modern fortran ( i.e.It has a simple GUI interface, and the source of the tool itself is an example of how the fortran code should be documented. FotranDOC : This tool (written in Fortran itself) aims to generate documentation for f95 code, preferably in a single file, in latex.f90doc / f90tohtml : Two tools written in Perl, which transform f90 code into html webpages.This package is written in python and requires you to construct your config file in python as well. SphinxFortran : This extension to SphinxFortran generates automatic documentation for f90 source (no OO fortran) and generates an html manual.It only generates html documentation, and is currently proprietary with license costs of 30£ per plugin. f90 ) fortran, and notes explicitly the aim to deal with object oriented f2003. Doctran : This tool is specifically aimed at free-format (≥.ROBODoc : A tool capable of generating documentation (many different formats) for any programming/script language which has comments. ![]() Over the years, several useful tools have been developed for the Fortran language directly, or as a plugin/extension to a more general tool: These tools parse specifically formatted comments to construct API documentation and user-guides. This is where automatic documentation generation software comes into play. However, when dealing with larger projects retaining a global overview and keeping track of interdependencies becomes harder. This allows for quick and easy documentation of your code, and can be sufficient for single functions. In Fortran, comments can be included in a very simple fashion: everything following the “!” symbol (when not used in a string) is considered a comment, and thus ignored by the compiler. This is a universal habit of programming which should be adopted irrespective of the programming-language and-paradigm, or size of the code base (yes, even small functions should be documented). These are just some of the reasons why code documentation is important. Alternately, when sharing code, you don’t want to have to dig through every line of code to figure out how to use it. One year from now, when you revisit your work, this will no longer be the case. Although at this point it is still very clear what each part does and why certain choices were made, memory fades. The resulting classes have already become quite extended ( cf. ![]() ![]() In the previous sessions of this tutorial on Object Oriented Programming in Fortran 2003, the basics of OO programming, including the implementation of constructors and destructors as well as operator overloading were covered.
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