symbol — A name that is replaced by a value before processing
symbol ::=
(text | phrase
db._phrase | replaceable
| Graphic inlines | Indexing inlines | Linking inlines | Ubiquitous inlines)*
Common attributes and common linking attributes.
Additional attributes:
class
(enumeration) = “limit”
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 occurrence of the symbol with its value
before compilation begins.
The Limit
value of the class
attribute identifies those symbols
that represent system limitations (e.g., the number of characters
allowed in a pathname or the largest possible positive integer). DocBook
V3.1 introduced the constant
element, which may be more suitable for some of these symbols.
Common attributes and common linking attributes.
Identifies the class of symbol
Enumerated values: | |
---|---|
“limit” | The value is a limit of some kind. |