Crosseno Lexicon

Storage-neutral contracts for Crosseno language packs, lexical catalogs, and solver candidate queries.

The package defines solver indexes, cell patterns, candidate filtering, and stable lexical identity. An in-memory backend provides the reference behavior.

Installation

composer require crosseno/lexicon

The local workspace maps the sibling crosseno/core checkout to unreleased version 0.1.0. Published releases should resolve the tagged package from Packagist rather than retain the path repository.

Patterns and queries

<?php

use Crosseno\Core\Grid\CellSymbol;
use Crosseno\Lexicon\Candidate\CandidateConstraints;
use Crosseno\Lexicon\Candidate\CandidateOrdering;
use Crosseno\Lexicon\Candidate\CandidateQuery;
use Crosseno\Lexicon\Pattern\CandidatePattern;
use Crosseno\Lexicon\Pattern\PatternCell;

$pattern = new CandidatePattern([
    PatternCell::fixed(new CellSymbol('Ł')),
    PatternCell::unknown(),
    PatternCell::fixed(new CellSymbol('DŹ')),
]);

$query = new CandidateQuery(
    $pattern,
    CandidateConstraints::permissive(),
    maximumResults: 100,
    ordering: CandidateOrdering::RankDescending,
);

$candidates = $lexicon->candidates($query);

Patterns always have an exact cell count. A cell may contain multiple Unicode code points, and fixed symbols are compared exactly. Unknown cells may carry an allow/exclude CellEligibilityMask.

Language services

Language packs provide AnswerNormalizerInterface, CellTokenizerInterface, and LexicalEquivalenceInterface. The package defines no English, Polish, normalization, or morphology rules. Language tags use canonical BCP 47 form; matching must select exact, RFC 4647 basic-filtering, or RFC 4647 lookup behavior explicitly.

RuntimeLanguagePackInterface is the composition view for ordinary applications. It exposes the language pack, storage-neutral lexical clue catalog, solver index, exact ordinal keys, manifest-derived artifact/ordinal identity, and aggregate clue coverage. Concrete language packages load and validate artifacts; builders consume only this contract.

Stable identity

StableKeyFactory produces versioned answer, sense, and lexeme keys from ordered NFC canonical fields. Version 1 hashes an unambiguous length-prefixed byte stream with SHA-256. Keys include their entity type, source namespace, and algorithm major. See ADR 0001 for the byte-level contract.

Candidate semantics

CandidateConstraints explicitly controls inclusive/exclusive difficulty bounds, unknown difficulty, answer classes, tri-state proper-name and abbreviation flags, dialect matching, clue-language coverage, stable-key exclusions, themes, and the meaning of every empty set filter. Rich clue text is intentionally absent.

Non-goals

This package contains no SQLite adapter, binary-index reader, compiler, concrete language logic, clue assignment policy, generator, CMS integration, or persistence configuration. Lexical clue records are storage-neutral transfer records, not rendered or assigned clues.