Version 0.10.0

What's Changed

Added

• ExtractUtterancesOptions.segmentation — split utterances at real sentence boundaries instead of one per structural unit, reconstructing a sentence across sibling nodes when it genuinely spans them. mode: "sentence" (default "structure"), plus suppressions (per-language abbreviations to not treat as sentence endings) and segmenter (swap in a custom sentence segmenter for the built-in Intl.Segmenter-based one).
• ReadiumSpeechUtterance.offsets/UtteranceOffset — the ranges of plain/ssml backed by real source text, each with its own locate; an utterance with none is what synthetic used to flag.
• ReadiumSpeechNavigator's "boundary" event, previously only "word", now also fires "sentence"/"structure" (matching the active segmentation mode) whenever the current utterance changes, with detail.locate resolved to a LocatorOptions[]. resolveUtteranceLocate() (sentence/structure) and resolveBoundaryLocate() (word) are the two helpers behind this — the same ones to call yourself when driving playback without ReadiumSpeechNavigator.
• ReadiumSpeechNavigatorConfiguration.segmentationOverrides and ISpeechPreferences.segmentation/ISpeechDefaults.segmentation — the live segmentation.mode preference, plus construction-time suppressions/segmenter.
• ExtractUtterancesOptions.substitutions — rewrite ASCII imitations of Unicode symbols (e.g. "1/2", "(c)") so the engine speaks the symbol, merged on top of a built-in table.
• makeGnd()/parseMarkup()'s textrefs.roles accepts "leaf-text", matching a roleless block that owns its own text directly (e.g. a <div> standing in for <p>).

Fixed

• WebSpeechEngine no longer resolves a stray/delayed boundary event from an already-cancelled utterance against whatever utterance is current by the time it arrives.
• WebSpeechEngine no longer emits a duplicate start/pause/resume event for the same playback action — previously fired once eagerly and again from the native SpeechSynthesisUtterance event, which also doubled ReadiumSpeechNavigator's synthesized boundary event on start.
• Text sent to WebSpeechEngine/SpeechServerEngine now has angle brackets neutralized so plain text containing </> can't be misread as markup.
• Generated CSS selectors (makeGnd()/parseMarkup()) no longer use attribute selectors, which could latch onto a JS-mutated attribute (e.g. an inline style set by a layout script) and silently stop matching once it changed.

Removed

• ReadiumSpeechUtterance.synthetic — an empty/absent offsets is now what marks an utterance as synthesized rather than sourced.

by @JayPanoz in #63

Full Changelog: v0.9.2...v0.10.0