Module fst::map

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Expand description

Map operations implemented by finite state transducers.

This API provided by this sub-module is close in spirit to the API provided by std::collections::BTreeMap.

Overview of types

Map is a read only interface to pre-constructed sets. MapBuilder is used to create new sets. (Once a set is created, it can never be modified.) Stream, Keys and Values are streams that originated from a map. StreamBuilder builds range queries. OpBuilder collects a set of streams and executes set operations like union or intersection on them with the option of specifying a merge strategy for a map’s values. The rest of the types are streams for set operations.

Structs

A stream of set difference over multiple map streams in lexicographic order.
A value indexed by a stream.
A stream of set intersection over multiple map streams in lexicographic order.
A lexicographically ordered stream of keys from a map.
Map is a lexicographically ordered map from byte strings to integers.
A builder for creating a map.
A builder for collecting map streams on which to perform set operations on the keys of maps.
A lexicographically ordered stream of key-value pairs from a map.
A builder for constructing range queries on streams.
A stream of set symmetric difference over multiple map streams in lexicographic order.
A stream of set union over multiple map streams in lexicographic order.
A stream of values from a map, lexicographically ordered by each value’s corresponding key.