Crate obadh_engine 

Obadh Engine — a deterministic Roman→Bangla transliteration engine and runtime SDK for Bangla typing systems.

The core transliterator is rule-based: Roman input becomes Bengali because an Obadh rule says so, not because a dictionary or model guessed a word. Higher runtime layers sit above that core as separate, optional stages:

• engine — the deterministic tokenizer and transliterator (ObadhEngine).
• autocorrect — active-word candidate generation over memory-mapped FST artifacts, each candidate carrying its provenance (FstCandidate). Auto-insert policy is the caller’s; the engine supplies the signals (source, edit costs, and lexicon frequency).
• autosuggest — next-word runtime over committed Bengali text, with a bounded personal overlay and an optional neural scorer/generator handoff.

The default feature set is empty, so native downstreams pay for none of the CLI or browser tooling. A stable, versioned C ABI is available behind the cabi feature (see the cabi module and include/obadh.h); the obadh-ios keyboard is the reference integrator.

See the README for the Roman rule contract, the reference auto-insert policy, and performance numbers.

Re-exports

pub use autocorrect::build_loanword_bytes;

pub use autocorrect::is_loanword_key;

pub use autocorrect::key_slip_repaired_outputs;

pub use autocorrect::roman_repair_beam;

pub use autocorrect::roman_repaired_outputs;

pub use autocorrect::weighted_edit_distance;

pub use autocorrect::AutocorrectConfig;

pub use autocorrect::AutocorrectDecision;

pub use autocorrect::AutocorrectEngine;

pub use autocorrect::CandidateFeatures;

pub use autocorrect::CorrectionCandidate;

pub use autocorrect::CorrectionRequest;

pub use autocorrect::CorrectionSource;

pub use autocorrect::EditCost;

pub use autocorrect::FstCandidate;

pub use autocorrect::FstCandidateSource;

pub use autocorrect::FstLexicon;

pub use autocorrect::FstLoanwordMatch;

pub use autocorrect::FstRepairedBaseline;

pub use autocorrect::FstSuggestError;

pub use autocorrect::FstSuggestOptions;

pub use autocorrect::FstSuggestResult;

pub use autocorrect::Lexicon;

pub use autocorrect::LexiconArtifactError;

pub use autocorrect::LexiconEntry;

pub use autocorrect::LexiconStats;

pub use autocorrect::LoanwordArtifactError;

pub use autocorrect::LoanwordEntry;

pub use autocorrect::LoanwordLexicon;

pub use autocorrect::LoanwordMatch;

pub use autocorrect::LoanwordSearchOptions;

pub use autocorrect::LoanwordSuggestion;

pub use autocorrect::LoanwordSuggestionKind;

pub use autocorrect::RomanRepair;

pub use autocorrect::RomanRepairKind;

pub use autocorrect::RomanRepairOptions;

pub use autocorrect::RomanRepairedOutput;

pub use autocorrect::AUTOCORRECT_FEATURE_DIM;

pub use autocorrect::DEFAULT_FST_MAX_DISTANCE;

pub use autocorrect::DEFAULT_FST_PREFIX_CANDIDATES;

pub use autocorrect::DEFAULT_LOANWORD_FUZZY_CANDIDATES;

pub use autocorrect::DEFAULT_ROMAN_REPAIR_BEAM_SIZE;

pub use autocorrect::FST_MAX_LEVENSHTEIN_DISTANCE;

pub use autocorrect::LOANWORD_FUZZY_MAX_DISTANCE;

pub use autosuggest::AutosuggestLoadError;

pub use autosuggest::accept_open_vocab_texts_into;

pub use autosuggest::materialize_generated_candidates_into;

pub use autosuggest::materialize_merged_candidates_into;

pub use autosuggest::materialize_scored_union_candidates_into;

pub use autosuggest::merge_static_and_generated_candidates_into;

pub use autosuggest::merge_static_generated_and_open_vocab_candidates_into;

pub use autosuggest::rerank_candidate_ids_with_fixed_scores_into;

pub use autosuggest::rerank_candidate_ids_with_scores_into;

pub use autosuggest::scored_union_static_and_generated_candidates_into;

pub use autosuggest::scorer_candidate_i32s_for_candidates_into;

pub use autosuggest::scorer_candidate_ids_for_candidates_into;

pub use autosuggest::validate_open_vocab_text;

pub use autosuggest::AutosuggestArtifactError;

pub use autosuggest::AutosuggestCandidate;

pub use autosuggest::AutosuggestCandidateId;

pub use autosuggest::AutosuggestCandidatePrior;

pub use autosuggest::AutosuggestContext;

pub use autosuggest::AutosuggestContextPriorMetadata;

pub use autosuggest::AutosuggestContextPriorOptions;

pub use autosuggest::AutosuggestGeneratedCandidateId;

pub use autosuggest::AutosuggestGeneratorCompatibility;

pub use autosuggest::AutosuggestGeneratorFile;

pub use autosuggest::AutosuggestGeneratorHandoff;

pub use autosuggest::AutosuggestGeneratorHandoffError;

pub use autosuggest::AutosuggestGeneratorManifest;

pub use autosuggest::AutosuggestGeneratorManifestError;

pub use autosuggest::AutosuggestGeneratorMergeOptions;

pub use autosuggest::AutosuggestGeneratorMergedQuality;

pub use autosuggest::AutosuggestGeneratorModel;

pub use autosuggest::AutosuggestGeneratorNgram;

pub use autosuggest::AutosuggestGeneratorQuality;

pub use autosuggest::AutosuggestGeneratorQualityMetrics;

pub use autosuggest::AutosuggestGeneratorRuntimeContract;

pub use autosuggest::AutosuggestGeneratorScoredUnionPolicy;

pub use autosuggest::AutosuggestGeneratorScoredUnionQuality;

pub use autosuggest::AutosuggestGeneratorSession;

pub use autosuggest::AutosuggestLm;

pub use autosuggest::AutosuggestMaterializedGeneratedCandidate;

pub use autosuggest::AutosuggestMaterializedMergedCandidate;

pub use autosuggest::AutosuggestMaterializedScoredCandidate;

pub use autosuggest::AutosuggestMaterializedScoredUnionCandidate;

pub use autosuggest::AutosuggestMergedCandidateId;

pub use autosuggest::AutosuggestMergedCandidateSource;

pub use autosuggest::AutosuggestMetadata;

pub use autosuggest::AutosuggestModelInfo;

pub use autosuggest::AutosuggestOpenVocabError;

pub use autosuggest::AutosuggestOpenVocabPolicy;

pub use autosuggest::AutosuggestOpenVocabRejectionKind;

pub use autosuggest::AutosuggestOpenVocabValidationReport;

pub use autosuggest::AutosuggestOptions;

pub use autosuggest::AutosuggestRerankError;

pub use autosuggest::AutosuggestRerankInputMetadata;

pub use autosuggest::AutosuggestRerankOptions;

pub use autosuggest::AutosuggestResult;

pub use autosuggest::AutosuggestScoredCandidateId;

pub use autosuggest::AutosuggestScoredUnionCandidateId;

pub use autosuggest::AutosuggestScorerCompatibility;

pub use autosuggest::AutosuggestScorerFile;

pub use autosuggest::AutosuggestScorerHandoff;

pub use autosuggest::AutosuggestScorerHandoffError;

pub use autosuggest::AutosuggestScorerManifest;

pub use autosuggest::AutosuggestScorerManifestError;

pub use autosuggest::AutosuggestScorerModel;

pub use autosuggest::AutosuggestScorerNgram;

pub use autosuggest::AutosuggestScorerQuality;

pub use autosuggest::AutosuggestScorerQualityMetrics;

pub use autosuggest::AutosuggestScorerRuntimeContract;

pub use autosuggest::AutosuggestScorerSession;

pub use autosuggest::AutosuggestSession;

pub use autosuggest::AutosuggestSource;

pub use autosuggest::AutosuggestUnifiedCandidate;

pub use autosuggest::AutosuggestUnifiedCandidateKind;

pub use autosuggest::AutosuggestValidatedTextCandidate;

pub use autosuggest::PersonalAutosuggest;

pub use autosuggest::PersonalAutosuggestConfig;

pub use autosuggest::PersonalAutosuggestContext;

pub use autosuggest::PersonalAutosuggestError;

pub use autosuggest::PersonalAutosuggestSnapshotError;

pub use autosuggest::PersonalAutosuggestSuggestion;

pub use autosuggest::PersonalAutosuggestTextSuggestion;

pub use autosuggest::AUTOSUGGEST_ARTIFACT_KIND;

pub use autosuggest::AUTOSUGGEST_BOS_I32;

pub use autosuggest::AUTOSUGGEST_BOS_ID;

pub use autosuggest::AUTOSUGGEST_GENERATOR_COREML_INPUT_DTYPE;

pub use autosuggest::AUTOSUGGEST_GENERATOR_MANIFEST_VERSION;

pub use autosuggest::AUTOSUGGEST_GENERATOR_ONNX_INPUT_DTYPE;

pub use autosuggest::AUTOSUGGEST_GENERATOR_PACKAGE_KIND;

pub use autosuggest::AUTOSUGGEST_GENERATOR_RUNTIME_ROLE;

pub use autosuggest::AUTOSUGGEST_GENERATOR_SCORE_DTYPE;

pub use autosuggest::AUTOSUGGEST_GENERATOR_TOKEN_ID_DTYPE;

pub use autosuggest::AUTOSUGGEST_PAD_I32;

pub use autosuggest::AUTOSUGGEST_PAD_ID;

pub use autosuggest::AUTOSUGGEST_SCORER_COREML_INPUT_DTYPE;

pub use autosuggest::AUTOSUGGEST_SCORER_MANIFEST_VERSION;

pub use autosuggest::AUTOSUGGEST_SCORER_ONNX_INPUT_DTYPE;

pub use autosuggest::AUTOSUGGEST_SCORER_PACKAGE_KIND;

pub use autosuggest::AUTOSUGGEST_SCORER_RUNTIME_ROLE;

pub use autosuggest::AUTOSUGGEST_SCORER_SCORE_DTYPE;

pub use autosuggest::AUTOSUGGEST_SCORER_TOKEN_ID_DTYPE;

pub use autosuggest::AUTOSUGGEST_UNK_I32;

pub use autosuggest::AUTOSUGGEST_UNK_ID;

pub use autosuggest::DEFAULT_AUTOSUGGEST_CANDIDATES;

pub use autosuggest::DEFAULT_AUTOSUGGEST_GENERATOR_LOCKED_STATIC_PREFIX;

pub use autosuggest::DEFAULT_AUTOSUGGEST_OPEN_VOCAB_GENERATED_TEXT_PENALTY;

pub use autosuggest::DEFAULT_AUTOSUGGEST_OPEN_VOCAB_GENERATED_TEXT_RANK_PENALTY;

pub use autosuggest::DEFAULT_AUTOSUGGEST_OPEN_VOCAB_GENERATED_TOKEN_PENALTY;

pub use autosuggest::DEFAULT_AUTOSUGGEST_OPEN_VOCAB_GENERATED_TOKEN_RANK_PENALTY;

pub use autosuggest::DEFAULT_AUTOSUGGEST_OPEN_VOCAB_MAX_CANDIDATES;

pub use autosuggest::DEFAULT_AUTOSUGGEST_OPEN_VOCAB_MAX_SCALAR_RUN;

pub use autosuggest::DEFAULT_AUTOSUGGEST_OPEN_VOCAB_MAX_WORD_CHARS;

pub use autosuggest::DEFAULT_AUTOSUGGEST_OPEN_VOCAB_OVERLAP_BONUS;

pub use autosuggest::DEFAULT_AUTOSUGGEST_OPEN_VOCAB_STATIC_BONUS;

pub use autosuggest::DEFAULT_AUTOSUGGEST_OPEN_VOCAB_STATIC_LOG_COUNT_SCALE;

pub use autosuggest::DEFAULT_AUTOSUGGEST_OPEN_VOCAB_STATIC_RANK_PENALTY;

pub use autosuggest::DEFAULT_AUTOSUGGEST_OPEN_VOCAB_STATIC_SOURCE_BONUS;

pub use autosuggest::DEFAULT_AUTOSUGGEST_OPEN_VOCAB_TEXT_HEAP_BYTES;

pub use autosuggest::DEFAULT_AUTOSUGGEST_RERANK_LOCKED_PREFIX;

pub use autosuggest::DEFAULT_AUTOSUGGEST_RERANK_RANK_PENALTY;

pub use autosuggest::DEFAULT_PERSONAL_AUTOSUGGEST_ENTRIES;

pub use autosuggest::DEFAULT_PERSONAL_AUTOSUGGEST_MIN_COUNT;

pub use autosuggest::MAX_AUTOSUGGEST_CONTEXT_TOKENS;

pub use autosuggest::MAX_AUTOSUGGEST_RERANK_CONTEXT_TOKENS;

pub use autosuggest::AutosuggestGeneratorAsset;

pub use autosuggest::AutosuggestGeneratorAssetReport;

pub use autosuggest::AutosuggestScorerAsset;

pub use autosuggest::AutosuggestScorerAssetReport;

pub use engine::PhoneticUnit;

pub use engine::PhoneticUnitType;

pub use engine::Token;

pub use engine::TokenType;

pub use engine::Tokenizer;

pub use engine::SanitizeResult;

pub use engine::Sanitizer;

pub use fingerprint::artifact_fingerprint;

pub use fingerprint::verify_artifact_fingerprint;

pub use fingerprint::FingerprintMismatch;

Modules

autocorrect

Runtime autocorrect primitives for Bangla text produced above Obadh.

autosuggest

Compact next-word autosuggest runtime.

definitions

Definitions for the Obadh Engine

engine

Engine module for the Obadh transliteration system

fingerprint

Content fingerprints for pinned runtime artifacts.

Structs

ObadhEngine

Main entry point for the Obadh transliteration engine