We use the
elements to refer (or link) to other resources. Note that we
Normally, we use the
<xref> element, like
... <para> Here is a link that points to <xref linkend="some-id"/>. </para> <section id="some-id"> <title>Important Section</title> </section>
In this example, the link description is taken from the title of the referenced section, so that in most output formats, it will look like this:
Here is a link that points to Important Section.
In output formats that can display the link description as “hot” (or clickable), “Important Section” becomes a hotlink. This is, for example, true for HTML and PDF. In output formats where this is not possible (like printed books), our XSL stylesheets take care of adding other information, so that the above example might look like this:
Here is a link that points to Section 10.5 Important Section.
You should use the
<link> element only if
you have to use text other than the linked element's title as the
link description, like in the following example:
... <para> Here is a link that points to an <link linkend="some-id">important section</link>. </para> <section id="some-id"> <title>Important Section</title> </section>
<link>, do not use numbers to
refer to elements! For example, do not use something
See <link linkend="some-id">10.5</link>.
For information about (automatic) numbering, see Section 5.3, “Guidelines for Numbering”.
Also, do not add other information like the words “chapter” or “section” to your link. For example, do not use something like this:
See section <link linkend="some-id">Important Section</link>.
Our XSL stylesheets take care of adding such information in the correct language (bear in mind translations) when appropriate.
For links referring to resources other than XML documents, you
should use the
<ulink> element, which has
the following syntaxes:
<ulink url="target-resource">descriptive text</ulink> <ulink url="target-resource"/>
The second form can be used if the content of the element is the same as the URL attribute. Here is an example:
The MySQL Reference Manual is <ulink url="http://dev.mysql.com/doc/mysql/">available online</ulink> or can be downloaded in a number of formats. For example, you can find the PDF version here: <ulink url="http://dev.mysql.com/get/Downloads/Manual/manual.pdf/from/pick"/>
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