Auxiliary Parsers

Expression	Attribute	Description
`eol`	`Unused`	Matches the end of line (`\r` or `\n` or `\r\n`)
`eoi`	`Unused`	Matches the end of input (first == last)
`eps`	`Unused`	Match an empty string
`eps(b)`	`Unused`	If `b` is true, match an empty string
`lazy(fp)`	Attribute of `P` where `P` is the return type of `fp`	Invoke `fp` at parse time, returning a parser `p` which is then called to parse.
`fp`	see `lazy(fp)` above	Equivalent to `lazy(fp)`
`attr(attrib)`	`Attrib`	Doesn't consume/parse any input, but exposes the argument `attrib` as its attribute.

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