symbol
symbol — A name that is replaced by a value before processing
Synopsis
Mixed Content Model
symbol ::=
(#PCDATA|replaceable|inlinegraphic|inlinemediaobject|indexterm|
beginpage)*
Attributes
Name | Type | Default | ||
class |
| None |
Description
A Symbol
is a name that represents a value. It should be used in contexts in which the name will actually be replaced by a value before processing. The canonical example is a #define
d symbol in a C program where the C preprocessor replaces every occurance of the symbol with its value before compilation begins.
The Limit
value of the Class
attribute identifies those symbols that represent system limitations (for example, the number of characters allowed in a path name or the largest possible positive integer). DocBook V3.1 introduced the Constant
element, which may be more suitable for some of these symbols.
Processing expectations
Formatted inline.
Parents
These elements contain symbol: 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
, msgaud
, olink
, option
, optional
, para
, parameter
, phrase
, primary
, primaryie
, productname
, programlisting
, property
, quote
, refdescriptor
, refentrytitle
, refname
, refpurpose
, remark
, screen
, screeninfo
, secondary
, secondaryie
, see
, seealso
, seealsoie
, seeie
, seg
, segtitle
, simpara
, subscript
, subtitle
, superscript
, synopsis
, systemitem
, td
, term
, termdef
, tertiary
, tertiaryie
, th
, title
, titleabbrev
, tocback
, tocentry
, tocfront
, trademark
, ulink
, userinput
.
Children
The following elements occur in symbol: beginpage
, indexterm
, inlinegraphic
, inlinemediaobject
, replaceable
.
See Also
classname
, interface
, property
, structfield
, structname
, token
, type
.
Examples
<!DOCTYPE para PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
"http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd">
<para>
No filename may be more than <symbol class='limit'>MAXPATHLEN</symbol>
characters long.
</para>
No filename may be more than MAXPATHLEN characters long.