- (CFG) is a
formal grammar whose production rules can be
applied to a
nonterminal symbol regardless of its context. In particular, in a context-free grammar...
- In
formal languages,
terminal and
nonterminal symbols are the
lexical elements used in
specifying the
production rules constituting a
formal grammar....
-
Likewise the
names ****igned to
parsing expressions are
called nonterminal symbols, or
nonterminals for short.
These terms would be
descriptive for generative...
- are of the form: A → BC, or A → a, or S → ε,
where A, B, and C are
nonterminal symbols, the
letter a is a
terminal symbol (a
symbol that represents...
- symbols:
nonterminal and
terminal symbols; each left-hand side must
contain at
least one
nonterminal symbol. It also
distinguishes a
special nonterminal symbol...
- a
single nonterminal on the left-hand side and a right-hand side
consisting of a
single terminal,
possibly followed by a
single nonterminal, in which...
- {\displaystyle {}+3} , a
suitable suffix. In
terms of context-free grammar, a
nonterminal is left-recursive if the
leftmost symbol in one of its
productions is...
-
branch of the tree.
Again from our example, hit is a
child node of V. A
nonterminal function is a
function (node)
which is
either a root or a
branch in that...
- for all of its
production rules, α → β (where α and β are
strings of
nonterminal and
terminal symbols), it
holds that |α| ≤ |β|, that is β has at least...
-
composed of
terminal and
nonterminal symbols,
possibly interleaved with
operators that
compose one or
several derivation rules.
Nonterminal symbols are indicated...
