Module mapping 

Enums

ConversionDirection

Direction of text conversion between Russian ЙЦУКЕН and English QWERTY layouts.

Functions

conversion_direction_for_text

Returns a conversion direction based on letter balance.

convert_ru_en_bidirectional

Convenience wrapper: auto-detect direction (fallback to RuToEn on ties). This is intentionally a normal public API so downstream test crates can use it.

convert_ru_en_with_direction

Converts text between English QWERTY and Russian ЙЦУКЕН keyboard layouts in the given direction.