Parser Directives

Expression	Attribute	Description
`lexeme[a]`	`A`	Disable skip parsing for `a`, does pre-skipping
`no_skip[a]`	`A`	Disable skip parsing for `a`, no pre-skipping
`no_case[a]`	`A`	Inhibits case-sensitivity for `a`
`omit[a]`	`Unused`	Ignores the attribute type of `a`
`matches[a]`	`bool`	Return if the embedded parser `a` matched its input
`as<T>[]()[a]`	`A`	Force atomic assignment for arbitrary attribute types
`as_string[][a]`	`A`	Force atomic assignment for string attributes
`as_wstring[][a]`	`A`	Force atomic assignment for wide character string attributes
`raw[a]`	`boost::iterator_range<I>`	Presents the transduction of `a` as an iterator range
`repeat[a]`	`vector<A>`	Repeat `a` zero or more times
`repeat(N)[a]`	`vector<A>`	Repeat `a` `N` times
`repeat(N, M)[a]`	`vector<A>`	Repeat `a` `N` to `M` times
`repeat(N, inf)[a]`	`vector<A>`	Repeat `a` `N` or more times
`skip[a]`	`A`	Re-establish the skipper that got inhibited by lexeme or no_skip.
`skip(p)[a]`	`A`	Use `p` as a skipper for parsing `a`

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