sdpc.combinators

Combinators

Members

between alias between(alias begin, alias func, alias end) = pipe!(seq!(discard!begin, func, discard!end), wrap!"move(a[1])"): Match pattern begin func end, return the result of func.
discard alias discard(alias p) = pipe!(p, wrap!( (ref _))): Match p but discard the result
discard_err alias discard_err(alias p) = pipe!(p, wrap_err!( (ref _))): Undocumented in source.
skip alias skip(alias p) = discard_err!(discard!(many!(discard!p, true))): Skip p zero or more times

lookahead struct lookahead(alias u, bool negative = false): Match u but doesn't consume anything from the input range
many struct many(alias func, bool allow_none = false): Like many_r but with default reduce function that put all return values into an array, or return number of matches
optional struct optional(alias p): Optionally matches p
seq struct seq(T...): Appply a sequence of parsers one after another.
span struct span(alias p): Undocumented in source.

choice template choice(T...): Match one of the given pattern. Remembers the matching parser. Repeated invocation will keep invoking the parser matched the first time.
delimited template delimited(alias p, alias delim): First invocation matches p. Following invocations matches delim p
pfold template pfold(alias p, alias func, alias seed, bool allow_empty = false): Undocumented in source.
pmap template pmap(alias p, alias m): Generate a new parser that applies m to outputs of parser p