Crate varna 

Varna — Multilingual Language Engine

Varna (Sanskrit: वर्ण — letter, character, sound) provides a structured, queryable corpus of human language data. Phoneme inventories, grapheme-to-phoneme rules, writing system metadata, grammar structures, and lexicon access for 50+ languages.

Architecture

Six modules:

• phoneme — IPA phoneme inventories per language, phonological features (manner, place, voicing), stress/tone patterns, builder pattern, allophone rules, syllable structure, phonotactic constraints
• script — Writing system metadata: alphabet, syllabary, logographic, abjad, abugida. Unicode ranges, directionality, lookup by ISO 15924 code, transliteration tables, numeral system mappings
• grammar — Morphological typology (isolating, agglutinative, fusional), word order (SVO/SOV/VSO), case systems
• lexicon — Core vocabulary per language (Swadesh lists, frequency-ranked word lists)
• registry — Language registry: look up phoneme inventories and scripts by ISO 639 code
• dialect — Language variety overlays: regional dialects, national standards, phoneme add/remove relative to parent language

Relationship to Other Crates

varna (this) — language structure & phoneme inventories
  ↓ provides phoneme sets per language
shabda — G2P conversion (currently English-only, varna makes it multilingual)
  ↓ produces phoneme sequences
shabdakosh — pronunciation dictionary (currently CMUdict, varna adds IPA dicts)
  ↓ lookup fallback
svara — vocal synthesis (consumes phonemes, produces audio)
  ↓ voice output
dhvani — audio engine (mixing, DSP, output)

Also feeds:

• jnana — multilingual knowledge access
• vidya — programming concepts explained in native languages
• vansh (planned) — voice assistant with multilingual TTS/STT
• sahifa (planned) — OCR language detection, multilingual document processing

Re-exports

pub use error::VarnaError;

Modules

dialect

Dialect and language variety support.

error

Error types for varna.

grammar

Grammar — morphological typology, word order, case systems.

lexicon

Lexicon — core vocabulary, Swadesh lists, frequency data, cognate tracking, and etymology.

phoneme

Phoneme inventories — IPA phonemes per language, phonological features.

registry

Language registry — look up phoneme inventories and scripts by ISO 639 code.

script

Writing systems — alphabet, syllabary, logographic, abjad, abugida.