--, == · Terminators
The -- and == are used as terminators: -- for core expressions, and == for terminating a 'running' or 'jogging' series of Hoon expressions.
-- "hephep"
Syntax
The -- rune is used to indicate the end of a core expression.
Discussion
The |%, |_, and |^ runes are used to create cores that can have arbitrarily many arms. When you have defined all the desired arms in a core expression (using the ++, +$, and +* runes), use -- to terminate the expression.
Examples
> =num |%
++ two 2
++ add-two |=(a=@ (add 2 a))
++ double |=(a=@ (mul 2 a))
--
> two.num
2
> (add-two.num 12)
14
> (double.num 12)
24== "tistis"
Syntax
The == rune is used to indicate the end of a 'jogging' or 'running' series of Hoon expressions (runes that take a variable number of arguments).
Discussion
Certain runes are used to create expressions that may include arbitrarily many subexpressions. Such expressions are terminated with the == rune. For example, the :* and :~ runes are used to create a cell of any length. (The latter is just like the former except that it adds a null value at the end of the cell.) For another example, the %= rune used used to make arbitrarily many changes to a given wing value.
Examples
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