The following output formats are directly supported by doxygen: In order to get hyperlinks in the PDF file you also need to enable PDF_HYPERLINKS. Dear doxygen Users,. For the doxygen documentation, I have a html Mainpage. dox file. If a source code file name is written in it, hyperlinks to. Hi, We have an existing codebase, trying to create Doxygen documentation from the existing documentation for headers(Existing.
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Markdown support was introduced in doxygen version 1. It is a plain text formatting syntax written by John Gruber, with the following underlying design goal:. The design goal for Markdown’s formatting syntax is to make it as readable as possible. The idea is that a Markdown-formatted document should be publishable as-is, as plain text, without looking like it’s been marked up with tags or formatting instructions. While Markdown’s syntax has been influenced by several existing text-to-HTML filters, the hyoerlink biggest source of inspiration for Markdown’s syntax is the format of plain text email.
In the next section the standard Markdown features are briefly discussed. The reader is referred to the Doxygn site for more details. The section Markdown Extensions discusses the extensions that doxygen supports. Finally section Doxygen specifics discusses some specifics for doxygen’s implementation of the Markdown standard.
Even before doxygen had Markdown support it supported the same way of paragraph doxygrn as Markdown: Alternatively, you can use ‘s at the start of a line to make a header.
The number of ‘s at the start of the line determines the level up to 6 levels are supported. You can end a header by any number of ‘s. Lists and code blocks see below can appear inside a quote block. Quote blocks can also hyperliink nested.
List items can span multiple paragraphs if each paragraph starts with the proper indentation and hyperlnik can hyperlini nested. You can also make a numbered list like so. Make sure to also read Lists Extensions for doxygen specifics. Preformatted verbatim blocks can be created by indenting each line in a block of text by at least 4 extra spaces. Doxygen will remove the mandatory indentation from the code block.
Note that you cannot start a code block in the middle of a paragraph i. See section Code Block Indentation for more info how doxygen handles indentation as this is slightly different than standard Markdown.
A horizontal ruler will be produced for lines containing at dixygen three or more hyphens, asterisks, or underscores.
The line may also include any amount of whitespace. Note that using asterisks in comment blocks does not work. See Use of asterisks for details.
To emphasize a text fragment you doxyfen and end the fragment with an underscore or star. Using two stars or underscores will produce strong emphasis.
Unlike code blocks, code spans appear inline in a paragraph. See section Code Spans Limits for more info how yhperlink handles code spans slightly different than standard Markdown.
Doxygen supports both styles of make links defined by Markdown: For an inline link the link text is followed by a URL and an optional link title which together are enclosed in a set of regular parenthesis. The link title itself is surrounded by quotes.
How to add links to an existing pdf as hyperlink in class documentation.
Instead of putting the URL inline, you can also define the link separately and then refer to it from within the text. Note that the link name matching docygen not case sensitive as is shown in the following example:. Markdown syntax for images is similar to that for links.
The only difference is an additional! Doxygen supports a special link marker [TOC] which can be placed in a page to produce a table of contents at the start of the page, listing all sections.
Of the features defined by “Markdown Extra” is support for simple tables:. A table consists of a header line, a separator line, and at least one row line. Table columns are separated hperlink the pipe character. Additionally, column and row spans are supported. Sequences of carets may be used for any number of row spans.
Column spans are supported by means of directly adjacent vertical bars ” “. Each additional vertical bar indicates an additional column to be spanned. To put it another way, a single vertical bar indicates a single column span, two vertical bars indicates a 2 columns span, and so on. For more complex tables in doxygen please have a look at: Another feature defined by “Markdown Extra” is support for fenced code blocks:. A fenced code block does not require indentation, and is defined by a pair of “fence lines”.
The end of the block should have the same number of tildes. Here is an example:. For languages supported by doxygen you can also make the code block appear with syntax highlighting. To do so you need to indicate the typical file extension that corresponds to the programming language after the opening fence. For highlighting according to the Python language for instance, you would need to write the following:.
Standard Markdown has no support for labeling headers, which is a problem if you want to link to a section. Even though doxygen tries to following the Markdown standard as byperlink as possible, there are couple of deviation and doxygen specifics additions. Doxygen can process files with Markdown formatting. For this to work the extension for such a file should be. Each hyperink is converted to a page see the page command for details.
By default the name and title of the page are derived from the file name. If the file starts with a level 1 header however, it is used as the title of the page. If you specify a label for the header as shown in Header Id Attributes doxygen will use that as the page name. If the label is called index or mainpage doxygen will put the documentation on the front page index.
Doxygen – Users – How to add links to an existing pdf as hyperlink in class documentation.
If a page has a label you can link to it using ref as is shown above. To refer to a markdown page without such label you can simple use the file name of the page, e. Doxygen does not have this requirement, and will also process Markdown formatting inside such HTML blocks.
Doxygen will not process Markdown formatting inside verbatim or code blocks, and in other sections that need to be processed without changes for instance formulas or inline dot graphs.
Markdown allows both a single tab or 4 spaces to start a code block. When it is set to a higher value spaces will be present in the code block. A lower value will prevent a single tab hy;erlink be interpreted as the start of a code block.
With Markdown any block that is indented by 4 hyperllnk and 8 spaces inside lists is treated as a code block. This indentation amount is absolute, i. Since doxygen comments can appear at any indentation level that is required by the programming language, it uses a relative indentation instead. The amount of indentation is counted relative to the preceding paragraph. In case there is no preceding paragraph i.
In most cases this difference does not result in different output. Only if you play with the indentation of paragraphs the difference is noticeable:. In this case Markdown will put the word code in hhperlink code block, whereas doxygen will treat it as normal text, since although the absolute indentation is 4, the indentation with respect to the doxgyen paragraph is only 1. For Item1 the indentation is 4 when treating the list marker as whitespaceso the next paragraph “More text Unlike standard Markdown and Github Flavored Markdown doxygen will not touch internal underscores or stars or tildes, so the following will appear as-is:.
In other words; a single quote cancels the doxhgen treatment of a code span wrapped in a pair of backtick characters.
This extra restriction was added for backward compatibility reasons. With Markdown two lists separated by an empty line are joined together into a single list which can be rather unexpected and many people consider it to be a bug. Doxygen, however, hypeglink make two separate lists as you would expect. Doxygen however requires that the numbers used as marks are in strictly ascending order, so the above example would produce 3 lists with one item.
An item with an equal or lower number than the preceding item, will start a new list. Historically hyperliink has an additional way to create numbered lists by using – markers:. So although the following works fine. Also for links there are limits; the link text, and link title each can contain only one new line, the URL may not uyperlink any newlines. When doxygen parses the source code it first extracts the comments blocks, then passes these through the Markdown preprocessor.
A second pass takes the output of the Markdown preprocessor and converts it into the various output formats. During Markdown preprocessing no errors are produced.
Anything that does not fit the Markdown syntax is simply passed on as-is. In the subsequent doxygem phase this could lead to errors, which may not always be obvious as they are based on the intermediate format.
To see the result after Markdown processing you can run doxygen with the -d Markdown option. It will then print each comment block before and after Markdown processing. Go to the next section or return to the index. It is a plain text formatting syntax written by John Gruber, with the following underlying design goal: Standard Markdown Paragraphs Even before doxygen had Markdown support it supported the same way of paragraph handling as Markdown: