[Moving this to the more appropriate docbook-apps mailing list. The DocBook list is for discussion of the standard itself.]
There must be a dozen ways to do what you want. Here is one that works for HTML output generated with the DocBook XSL stylesheets, and using a CSS file. This does not work for PDF output, which lacks CSS styling.
1. When you mean any plus key, tag it as usual: <keycap>+</keycap>
2. When you mean the plus key on the numeric keypad, wrap the <keypad> in an <emphasis> element with the role attribute set to an arbitrary string (but not "keycap"). Here, I use "numpad":
<emphasis role="numpad">
<keycap>+</keycap>
</emphasis>
3. Set the stylesheet parameter emphasis.propagates.style=1 as described in this page<http://www.sagehill.net/docbookxsl/UsingCSS.html#RoleAsClass> of the Stayton book.
4. In your CSS file, provide a style for span.numpad. For example:
span.numpad {
background-color: #bfbfbf;
}
An example of the results is here:
http://s299684157.onlinehome.us/Perhaps someone else can suggest a more general solution that works for other output formats.
-----Original Message-----
From: Krzysztof Zelechowski [mailto:
giecrilj@stegny.2a.pl]
Sent: Friday, January 14, 2011 7:30 PM
To: Barton Wright
Cc:
docbook@lists.oasis-open.orgSubject: Re: [docbook] How do I tell keycap+ from keycap keypad+
Dnia piatek, 14 stycznia 2011 o 19:42:47 Barton Wright napisal(a):
> Hello Krzysztof,
>
> Your question is really a matter of style, which is up to you, or up to the company for which you are writing.
Not necessarily. A technical question: How do I markup <keycap >+</keycap > so that it can be rendered on a gray background when keypad is required, but not when any '+' wins?
Chris