Auxiliary Generators

See here for more information about Auxiliary Generators.

Expression	Attribute	Description
`attr_cast<Exposed>(a)`	`Exposed`	Invoke `a` while supplying an attribute of type `Exposed`.
`eol`	`Unused`	Generate the end of line (`\n`)
`eps`	`Unused`	Generate an empty string
`eps(b)`	`Unused`	If `b` is true, generate an empty string
`lazy(fg)`	Attribute of `G` where `G` is the return type of `fg`	Invoke `fg` at generation time, returning a generator `g` which is then called to generate.
`fg`	see `lazy(fg)` above	Equivalent to `lazy(fg)`

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