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NaryLexer is a composite lexer component that has
one or more subjects. The NaryLexer allows its subjects to be treated
in the same way as a single instance of a Lexer following the Composite
Design Pattern.
Notation
lA NaryLexer.
LA NaryLexer type.
In addition to the requirements defined in Lexer, for any NaryLexer the
following must be met:
|
Expression |
Semantics |
Return type |
|---|---|---|
|
|
The tuple of elements. |
A Boost.Fusion
Sequence of |
|
Expression |
Description |
|---|---|
|
|
Elements tuple type. |
|
|
Metafunction that evaluates to |
For each element, E,
in any NaryLexer, L,
the following invariant always holds:
traits::is_lexer<E>::type evaluates to mpl::true_
The following lexer components conform to this model:
FIXME Add more links to models of NaryLexer concept