Mind reading by sspanak · Pull Request #1049 · sspanak/tt9

sspanak · 2026-02-08T17:34:11Z

First stage of #851

sspanak · 2026-02-19T10:39:41Z

Проблемни изречения:

"Започва без предложения и се учи, докато пишете"

Copilot

Pull request overview

This PR introduces a new “Mind Reader” (next-word guessing) feature, integrates it into the IME suggestion flow, and exposes basic controls/stats via the debug/usage-stats settings screens.

Changes:

Add a new db.mindReading module (tokenization, dictionary, n-gram storage, guessing, stats).
Integrate mind-reading guesses into the suggestions pipeline (including text-case handling and acceptance behavior).
Add a debug toggle and usage-stats UI entries for mind-reading (including DB clear + stats display), plus localized strings.

Reviewed changes

Copilot reviewed 50 out of 50 changed files in this pull request and generated 14 comments.

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File	Description
app/src/main/res/xml/prefs_screen_usage_stats.xml	Adds Mind Reader stats container and a “clear DB” preference entry.
app/src/main/res/xml/prefs_screen_debug.xml	Adds a beta toggle (`auto_mind_reading`).
app/src/main/res/values/strings.xml	Adds new strings for mind reading + newline capitalization setting.
app/src/main/res/values-uk/strings.xml	Adds Ukrainian translation for mind reading strings.
app/src/main/res/values-tr/strings.xml	Adds Turkish translation for mind reading strings.
app/src/main/res/values-ru/strings.xml	Adds Russian translation for mind reading strings.
app/src/main/res/values-pt-rBR/strings.xml	Adds Brazilian Portuguese translation for mind reading strings.
app/src/main/res/values-nl/strings.xml	Adds Dutch translation for mind reading strings.
app/src/main/res/values-lt/strings.xml	Adds Lithuanian translation for mind reading strings.
app/src/main/res/values-iw/strings.xml	Adds Hebrew translation for mind reading strings.
app/src/main/res/values-it/strings.xml	Adds Italian translation for mind reading strings.
app/src/main/res/values-fr/strings.xml	Adds French translation for mind reading strings.
app/src/main/res/values-es/strings.xml	Adds Spanish translation for mind reading strings.
app/src/main/res/values-de/strings.xml	Adds German translation for mind reading strings (currently contains a French string).
app/src/main/res/values-bg/strings.xml	Adds Bulgarian translation for mind reading strings.
app/src/main/java/io/github/sspanak/tt9/util/chars/Punctuation.java	Adds ZWJ/ZWNJ code point constants.
app/src/main/java/io/github/sspanak/tt9/util/chars/Emoji.java	Adds `isGraphic(int codePoint)` overload.
app/src/main/java/io/github/sspanak/tt9/util/TextTools.java	Adds helpers for whitespace suffix + single-codepoint checks.
app/src/main/java/io/github/sspanak/tt9/ui/tray/SuggestionsBar.java	Adds support for “guess-only” lists and text-case transformation.
app/src/main/java/io/github/sspanak/tt9/preferences/settings/SettingsTyping.java	Adds `auto_mind_reading` + new auto-text-case helper logic.
app/src/main/java/io/github/sspanak/tt9/preferences/screens/UsageStatsScreen.java	Prints Mind Reader stats and wires a “clear DB” action (currently stubbed).
app/src/main/java/io/github/sspanak/tt9/preferences/PreferencesActivity.java	Updates DataStore init to accept an `ExecutorService`.
app/src/main/java/io/github/sspanak/tt9/languages/NaturalLanguage.java	Adds API for alternative letters lookup.
app/src/main/java/io/github/sspanak/tt9/languages/LanguageKind.java	Adds language feature helpers (apostrophes / space-as-punctuation / IDs).
app/src/main/java/io/github/sspanak/tt9/languages/Language.java	Adds `equals(Object)` override (without `hashCode`).
app/src/main/java/io/github/sspanak/tt9/ime/modes/helpers/AutoTextCase.java	Adjusts text-case determination logic.
app/src/main/java/io/github/sspanak/tt9/ime/modes/ModeWords.java	Gates next-word text-case determination on settings.
app/src/main/java/io/github/sspanak/tt9/ime/modes/ModeABC.java	Minor cleanup in ABC mode sectioning.
app/src/main/java/io/github/sspanak/tt9/ime/modes/InputMode.java	Splits `getTextCase()` into computed vs raw.
app/src/main/java/io/github/sspanak/tt9/ime/helpers/SuggestionOps.java	Adds guess handling and list-level text-case adjustment.
app/src/main/java/io/github/sspanak/tt9/ime/helpers/StandardInputType.java	Makes a couple of helpers `protected` for subclass use.
app/src/main/java/io/github/sspanak/tt9/ime/VoiceHandler.java	Switches to `SuggestionHandler` and respects auto-text-case setting.
app/src/main/java/io/github/sspanak/tt9/ime/UiHandler.java	Introduces a cached-thread-pool executor used by IME tasks.
app/src/main/java/io/github/sspanak/tt9/ime/TypingHandler.java	Integrates mind-reader context lifecycle and async suggestion loading IDs.
app/src/main/java/io/github/sspanak/tt9/ime/TraditionalT9.java	Converts background init/tasks to `executor.submit()` and passes executor to DataStore.
app/src/main/java/io/github/sspanak/tt9/ime/SuggestionHandler.java	New shared handler for async suggestion + mind-reader guess coordination.
app/src/main/java/io/github/sspanak/tt9/ime/HotkeyHandler.java	Adds behavior for accepting “guess-only” suggestions and clears mind-reader context on navigation.
app/src/main/java/io/github/sspanak/tt9/ime/CommandHandler.java	Updates suggestion loading calls + keeps mind-reader language/text-case in sync.
app/src/main/java/io/github/sspanak/tt9/hacks/InputType.java	Adds `notMindReadableText()` gating logic for Mind Reader usage.
app/src/main/java/io/github/sspanak/tt9/hacks/AppHacks.java	Adjusts cursor-reset behavior to account for “no ordinary words” state.
app/src/main/java/io/github/sspanak/tt9/db/words/WordStore.java	Adds `exists(language, word, sequence)` and uses faster existence checks.
app/src/main/java/io/github/sspanak/tt9/db/sqlite/ReadOps.java	Adds fast `exists()` query path and a small SQL cache.
app/src/main/java/io/github/sspanak/tt9/db/mindReading/MindReaderNgramList.java	New in-memory n-gram store with MRU + variation limits.
app/src/main/java/io/github/sspanak/tt9/db/mindReading/MindReaderNgram.java	New n-gram representation + validation + ordering.
app/src/main/java/io/github/sspanak/tt9/db/mindReading/MindReaderDictionary.java	New token dictionary used by mind-reading predictions.
app/src/main/java/io/github/sspanak/tt9/db/mindReading/MindReaderContext.java	New context handling and token validation against dictionary/DB.
app/src/main/java/io/github/sspanak/tt9/db/mindReading/MindReader.java	New mind-reading engine (guess current/next, stats, async execution).
app/src/main/java/io/github/sspanak/tt9/db/mindReading/ContextTokenizer.java	New tokenizer for building context tokens (word/punct/emoji/number/etc).
app/src/main/java/io/github/sspanak/tt9/db/customWords/CustomWordsImporter.java	Updates existence check to use sequence-based query.
app/src/main/java/io/github/sspanak/tt9/db/DataStore.java	Makes executor injectable and adds `exists(language, word, sequence)`.

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…able fields

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sspanak · 2026-03-17T15:22:36Z

+		final SQLiteStatement query = CompiledQueryCache.get(db, sql);
+		query.bindString(1, sequence);
+		query.bindString(2, word);
+		query.bindString(3, word.toLowerCase(language.getLocale()));
+		query.bindString(4, word.toUpperCase(language.getLocale()));
+
+		try {
+			return query.simpleQueryForString();
+		} catch (SQLiteDoneException e) {
+			return null;


The comment is true, but this is used in two places - in the mind reader, and when inserting new words. So, it is safe.

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sspanak self-assigned this Feb 8, 2026

sspanak added the enhancement New feature or request label Feb 8, 2026

sspanak force-pushed the mind-reading branch 12 times, most recently from 537fe55 to 658b02b Compare February 14, 2026 13:55

sspanak force-pushed the mind-reading branch from 0bd89cb to aac769f Compare February 15, 2026 20:05

sspanak marked this pull request as ready for review March 9, 2026 09:32

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sspanak force-pushed the mind-reading branch from e29f555 to 305c693 Compare March 9, 2026 13:05

sspanak requested a review from Copilot March 9, 2026 13:48

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sspanak requested a review from Copilot March 9, 2026 14:42

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sspanak force-pushed the raise-import-limits branch from de151fb to d0a9807 Compare March 9, 2026 14:43

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sspanak force-pushed the mind-reading branch 2 times, most recently from 595a9e5 to a75736a Compare March 10, 2026 17:12

Copilot started reviewing on behalf of sspanak March 16, 2026 15:22 View session

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Comment thread app/src/main/java/io/github/sspanak/tt9/languages/Language.java

Comment thread app/src/main/java/io/github/sspanak/tt9/ime/TypingHandler.java

Comment thread app/src/main/java/io/github/sspanak/tt9/db/mindReading/MindReaderDictionary.java Outdated

sspanak and others added 8 commits March 16, 2026 17:39

removed unnecessary guessing

f1bac51

fixed creation of threads in threads

073056d

print the errors

a7cc11a

safer overlapping requests

26a5323

optimized n-gram list

b8fbaf2

Potential fix for pull request finding

2230a05

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Potential fix for pull request finding

e1453ae

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simplified a bit

0304f38

sspanak force-pushed the mind-reading branch from 77b4326 to 0304f38 Compare March 16, 2026 15:40

sspanak added 2 commits March 16, 2026 18:50

switched to single-thread executor and reduced excessive logging

3af4887

fix access to unknown tokens

ea6b056

sspanak requested a review from Copilot March 16, 2026 17:02

Copilot started reviewing on behalf of sspanak March 16, 2026 17:03 View session

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Comment thread app/src/main/java/io/github/sspanak/tt9/ime/TypingHandler.java

sspanak added 2 commits March 17, 2026 14:52

simplified initialization

b5250af

more detailed statistics

c2f88c0

sspanak requested a review from Copilot March 17, 2026 13:36

Copilot started reviewing on behalf of sspanak March 17, 2026 13:37 View session

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Comment thread app/src/main/java/io/github/sspanak/tt9/db/mindReading/MindReaderNgramList.java Outdated

Comment thread app/src/main/java/io/github/sspanak/tt9/db/mindReading/MindReaderStats.java

Comment thread app/src/main/java/io/github/sspanak/tt9/db/mindReading/MindReader.java

sspanak and others added 3 commits March 17, 2026 15:50

Potential fix for pull request finding

67c6754

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executor shutdown on exit process

65920b6

fixed guessing after new line; prevented context processing in unread…

19d79f5

…able fields

sspanak requested a review from Copilot March 17, 2026 14:54

Copilot started reviewing on behalf of sspanak March 17, 2026 14:55 View session

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Potential fix for pull request finding

4b0803b

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sspanak merged commit fcd9cb6 into master Mar 18, 2026
6 checks passed

sspanak deleted the mind-reading branch March 18, 2026 12:01

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sspanak commented Feb 8, 2026 •

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