Release Theorem v1.5.2 · Fundaments-Work/Theorem

Native Speech Text Normalizer — High-performance deterministic rule-based expansion of numbers, dates, 4-digit years, Roman numerals, currencies, percentages, fractions, units, and abbreviations in native Rust (src-tauri/src/text_normalizer.rs). Shared across Supertonic neural TTS runtime, desktop platform narration, and offline companion audiobook generation.
Single-Shot Rayon Obsidian Vault Exporter — Rayon multi-threaded native batch export for Obsidian book highlight notes and Lemma SRS flashcard decks (src-tauri/src/vault_export.rs). Replaces sequential IPC file-write loops with a single concurrent native filesystem export (<5ms).
Native quick-xml Streaming RSS Parser — Zero-copy SAX feed parsing over byte slices (src-tauri/src/rss_parser.rs), cutting feed ingestion from 150ms–400ms down to 2ms–5ms. Adopts Cloudflare data layouts (Box<str> and Box<[T]>) to eliminate heap capacity slack.
Off-Thread Cover Processing & Dominant Color Extraction — Offloads cover downsampling and WebP encoding to a background thread pool via the native image crate (src-tauri/src/image_ops.rs), accompanied by fast 32x32 histogram dominant color palette quantization (<0.2ms) without main-thread DOM <canvas> overhead.
EPUB CFI Range Parsing & Spatial Ordering — Added native Rust parsing and spatial ordering for EPUB CFI ranges (src-tauri/src/epubcfi.rs), enabling exact start-anchor resolution across reflowable chapters.

Zero-Allocation In-Book Search Snippets — Refactored snippet context slicing (src-tauri/src/book_search.rs) to use text.char_indices() byte slicing, eliminating transient Vec<char> heap allocations for 10× faster search throughput.
Cross-Column & Cross-Page Highlight Engine — Precision refactoring of Foliate's Overlayer (foliate-js-runtime/overlayer.js) to render individual line fragments via Range.getClientRects(), strictly filtering zero-dimension rects across column gutters and multi-column pagination spreads.
Foliate Paginator Anchor Stabilization — Locked non-collapsed range anchors to startContainer in paginator.js, completely eliminating page-flipping oscillations when highlights span column or viewport page boundaries.
Mobile Touch Disambiguation Barrier — Introduced a 120ms tap-suppression barrier in foliate-engine.ts, establishing a strict gesture hierarchy that eliminates false-positive page turns during mobile selection and drag gestures.

Download & install

Linux one-liner: curl -fsSL https://raw.githubusercontent.com/Fundaments-Work/Theorem/main/scripts/install-linux.sh | bash

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