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parameter — A value or a symbolic reference to a value
parameter ::= (#PCDATA|link|olink|ulink|action|application|classname|methodname|interfacename|exceptionname|ooclass|oointerface|ooexception|package|command|computeroutput|database|envar|errorcode|errorname|errortype|errortext|filename|function|guibutton|guiicon|guilabel|guimenu|guimenuitem|guisubmenu|hardware|interface|keycap|keycode|keycombo|keysym|literal|code|constant|markup|medialabel|menuchoice|mousebutton|option|optional|parameter|prompt|property|replaceable|returnvalue|sgmltag|structfield|structname|symbol|systemitem|uri|token|type|userinput|varname|nonterminal|anchor|remark|subscript|superscript|inlinegraphic|inlinemediaobject|indexterm|beginpage)*
| 
                         Name  | 
                     
                         Type  | 
                     
                         Default  | 
                  ||||
| moreinfo | 
                        
  | 
                     "none" | ||||
| class | 
                        
  | 
                     None | 
               A Parameter identifies something passed from one part of a 
               computer system to another.  In this regard Parameter is
               fairly generic, but it may have a more constrained semantic in some
               contexts (for example in a ParamDef).
               
            
               In a document that describes more than one kind of parameter,
               for example, parameters to functions and commands, the
               Class attribute can be used to distinguish
               between them, if necessary.
               
            
                  Formatted inline. The MoreInfo attribute
                  can help generate a link or query to retrieve additional information.
                  
               
                  
                  In DocBook V4.0, the content model of Parameter will
                  be constrained to (#PCDATA | Replaceable |
                     InlineGraphic).
                  
               
These elements contain parameter:
                  action, application, attribution, bibliomisc, bridgehead, citation, citetitle, classsynopsisinfo, code, command, computeroutput, database, emphasis, entry, filename, firstterm, foreignphrase, funcparams, funcsynopsisinfo, function, glosssee, glossseealso, glossterm, hardware, interfacename, keycap, lineannotation, link, literal, literallayout, lotentry, member, methodparam, msgaud, olink, option, optional, para, paramdef, parameter, phrase, primary, primaryie, productname, programlisting, property, quote, refdescriptor, refentrytitle, refname, refpurpose, remark, screen, screeninfo, secondary, secondaryie, see, seealso, seealsoie, seeie, seg, segtitle, simpara, subtitle, synopsis, systemitem, td, term, termdef, tertiary, tertiaryie, th, title, titleabbrev, tocback, tocentry, tocfront, trademark, ulink, userinput.
               
The following elements occur in parameter:
                  action, anchor, application, beginpage, classname, code, command, computeroutput, constant, database, email, envar, errorcode, errorname, errortext, errortype, exceptionname, filename, function, guibutton, guiicon, guilabel, guimenu, guimenuitem, guisubmenu, hardware, indexterm, inlinegraphic, inlinemediaobject, interface, interfacename, keycap, keycode, keycombo, keysym, link, literal, markup, medialabel, menuchoice, methodname, mousebutton, nonterminal, olink, ooclass, ooexception, oointerface, option, optional, package, parameter, prompt, property, remark, replaceable, returnvalue, sgmltag, structfield, structname, subscript, superscript, symbol, systemitem, token, type, ulink, uri, userinput, varname.
               
computeroutput, constant, funcdef, funcparams, funcprototype, funcsynopsisinfo, function, literal, markup, option, optional, paramdef, prompt, replaceable, returnvalue, sgmltag, userinput, varargs, varname, void.
               
            
<!DOCTYPE para PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
          "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd">
<para>
Using the <parameter class='command'>/w</parameter> parameter on the
DOS <command>dir</command> command prints a wide directory listing.
</para>
               Using the /w parameter on the
               DOS dir command prints a wide directory listing.
               
            
For additional examples, see also
               funcparams, funcsynopsis, paramdef, refentry.