Release 1.6.0

- The app starts faster
- Smooth screen transition animations
- Articles render DSL line breaks, indentation and named colors correctly
- Tabs and extra spaces inside articles no longer break the layout
- The article title can be copied, tapping the article clears the selection
- Source URLs accept host:port addresses
- Dictionary downloads retry automatically when the network switches
- Download progress notifications are more reliable
- Search results clear instantly when the query is erased
- Leftover files from cancelled downloads are now removed automatically
- Improved app stability
- Faster dictionary indexing
- Updated build tooling and documentation
- Long link-heavy articles no longer freeze while scrolling
- Large search result lists render faster
- Dark article colors are readable in the dark theme

README.md

@@ -5,7 +5,6 @@
 <p align="center">
   <a href="#screenshots">Screenshots</a> &bull;
   <a href="#features">Features</a> &bull;
-  <a href="#architecture">Architecture</a> &bull;
   <a href="#dictionary-pipeline">Pipeline</a> &bull;
   <a href="#build">Build</a>
 </p>
@@ -23,31 +22,17 @@ The app stores dictionaries as DictZip files and builds compact binary indexes f
 
 - Fast headword search across multiple DSL dictionaries.
 - Import local `.dsl`, `.dsl.gz`, and `.dsl.dz` dictionary files.
-- Download dictionaries from configured URLs.
+- Download dictionaries from configured URLs, with an optional `{DATE}` placeholder for dated releases.
 - Automatic extraction, DictZip compression, and indexing.
+- Faithful article rendering with DSL indentation, margins, and named colors.
 - Offline search after dictionaries are indexed.
 - Random-access article loading from DictZip dictionaries.
-- Background processing with progress shown in Settings and notifications.
-- Dictionary management with enable, disable, update, and delete actions.
+- Background processing with progress shown in Settings and notifications; downloads are cancelled with a button on the progress notification.
+- Dictionary management with enable, disable, and update actions; deleting a dictionary is done with a swipe.
 - Material 3 interface with dynamic color, light, dark, and system themes.
 - English and Russian localization.
 - About screen with open source license information.
 
-## Architecture
-
-ReSearch is an Android app written in Kotlin and Jetpack Compose.
-
-```text
-com.example.research/
-├── common/   # shared progress, UI, file, archive, notification utilities
-├── core/     # domain models, source validation, operation results
-├── data/     # DictZip, DSL parsing, indexing, paging, repositories
-├── feature/  # search, dictionary download, local import workflows
-└── ui/       # Compose screens, article view, settings, navigation
-```
-
-State is exposed through Kotlin Flow and collected by Compose screens. Long-running work uses coroutines and foreground services where Android requires visible progress.
-
 ## Dictionary Pipeline
 
 ReSearch supports both downloaded and locally imported dictionaries.
@@ -94,16 +79,16 @@ The main search screen remains usable as long as at least one indexed dictionary
 
 ## Tech Stack
 
-- Kotlin 2.4.10
-- Jetpack Compose (BOM 2026.08.00)
+- Kotlin 2.4.20
+- Jetpack Compose (BOM 2026.09.00)
 - Material 3
 - Coroutines and Flow 1.11.0
 - DataStore Preferences 1.2.1
 - Paging 3.5.1
-- OkHttp 5.4.0
+- OkHttp 5.5.0
 - kotlinx.serialization 1.11.0
-- AboutLibraries 15.0.4 metadata generation
-- Android Gradle Plugin 9.3.1
+- AboutLibraries 15.2.0 metadata generation
+- Android Gradle Plugin 9.4.1
 
 ## Build
 
@@ -111,7 +96,7 @@ The main search screen remains usable as long as at least one indexed dictionary
 ./gradlew :app:assembleRelease
 ```
 
-The release APK targets `arm64-v8a`. English and Russian resources are packaged together.
+The release APK targets `arm64-v8a`.
 
 ## License
 

app/build.gradle.kts

@@ -92,8 +92,8 @@ android {
         applicationId = "com.example.research"
         minSdk = project.property("minSdk").toString().toInt()
         targetSdk = project.property("targetSdk").toString().toInt()
-        versionCode = 8
-        versionName = "1.5.0"
+        versionCode = 9
+        versionName = "1.6.0"
 
         vectorDrawables {
             useSupportLibrary = true

app/src/main/java/com/example/research/common/progress/DictionaryProgressModel.kt

@@ -109,7 +109,7 @@ object DictionaryProgressModel {
         return Snapshot(
             progress = p,
             percent = (p * 100f).toInt().coerceIn(0, 100),
-            titleRes = R.string.notification_indexing_title,
+            titleRes = R.string.notification_preparing_indexing_title,
         )
     }
 
@@ -120,7 +120,7 @@ object DictionaryProgressModel {
         } else {
             DOWNLOAD_WEIGHT + EXTRACT_WEIGHT + idx * INDEX_WEIGHT
         }
-        val pct = (p * 100f).toInt().coerceIn(0, 100)
+        val pct = (p * 100f).toInt().coerceIn(0, 99)
 
         return Snapshot(
             progress = p,

app/src/main/java/com/example/research/common/progress/DictionaryProgressPresenter.kt

@@ -32,6 +32,7 @@ class DictionaryProgressPresenter(
 
     fun beginFlow() {
         terminalActive = false
+        notifications.cancelTerminalNotification()
     }
 
     override fun showImportSuccess() {

app/src/main/java/com/example/research/common/progress/NotificationPort.kt

@@ -6,5 +6,6 @@ interface NotificationPort {
     fun showDownloadSuccess()
     fun showError()
     fun cancelProgressNotification()
+    fun cancelTerminalNotification()
     fun hasActiveProgressNotification(): Boolean
 }

app/src/main/java/com/example/research/common/util/NotificationHelper.kt

@@ -13,6 +13,7 @@ class NotificationHelper(private val context: Context) : NotificationPort {
     companion object {
         const val CHANNEL_ID = "download_progress_channel"
         const val NOTIFICATION_ID = 1
+        const val TERMINAL_NOTIFICATION_ID = 2
     }
     private val notificationManager = NotificationManagerCompat.from(context)
     private var lastNotificationKey: Int = 0
@@ -91,7 +92,7 @@ class NotificationHelper(private val context: Context) : NotificationPort {
             .setContentIntent(mainActivityPendingIntent)
             .setAutoCancel(true)
             .build()
-        safeNotify(notification)
+        safeNotifyTerminal(notification)
     }
     fun showErrorNotification() {
         if (!canShowNotification()) return
@@ -103,13 +104,17 @@ class NotificationHelper(private val context: Context) : NotificationPort {
             .setContentIntent(mainActivityPendingIntent)
             .setAutoCancel(true)
             .build()
-        safeNotify(notification)
+        safeNotifyTerminal(notification)
     }
     fun cancelNotification() {
         lastNotificationKey = 0
         notificationManager.cancel(NOTIFICATION_ID)
     }
 
+    override fun cancelTerminalNotification() {
+        notificationManager.cancel(TERMINAL_NOTIFICATION_ID)
+    }
+
     override fun hasActiveProgressNotification(): Boolean = lastNotificationKey != 0
 
     fun showUnifiedProgressNotification(
@@ -161,6 +166,14 @@ class NotificationHelper(private val context: Context) : NotificationPort {
             // Notification permission denied or security policy blocked
         }
     }
+
+    @SuppressLint("MissingPermission")
+    private fun safeNotifyTerminal(notification: Notification) {
+        try {
+            notificationManager.notify(TERMINAL_NOTIFICATION_ID, notification)
+        } catch (_: SecurityException) {
+        }
+    }
     fun showImportSuccessNotification() {
         if (!canShowNotification()) return
         lastNotificationKey = 0
@@ -171,7 +184,7 @@ class NotificationHelper(private val context: Context) : NotificationPort {
             .setContentIntent(mainActivityPendingIntent)
             .setAutoCancel(true)
             .build()
-        safeNotify(notification)
+        safeNotifyTerminal(notification)
     }
     fun createForegroundNotification(): Notification {
         val notification = NotificationCompat.Builder(context, CHANNEL_ID)

app/src/main/java/com/example/research/core/domain/model/DictionarySource.kt

@@ -102,12 +102,15 @@ data class DictionarySource(
 
         fun validateTemplate(template: String): ValidationResult {
             val trimmed = template.trim()
+            val lowerTemplate = trimmed.lowercase()
             return when {
                 trimmed.isBlank() -> ValidationResult.Error(ValidationError.EMPTY)
                 trimmed.length > 2048 -> ValidationResult.Error(ValidationError.TOO_LONG)
                 !trimmed.startsWith("http://") && !trimmed.startsWith("https://") ->
                     ValidationResult.Error(ValidationError.INVALID_PROTOCOL)
-                !trimmed.endsWith(".gz") && !trimmed.endsWith(".dsl") && !trimmed.endsWith(".dz") ->
+                !lowerTemplate.endsWith(".gz") &&
+                    !lowerTemplate.endsWith(".dsl") &&
+                    !lowerTemplate.endsWith(".dsl.dz") ->
                     ValidationResult.Error(ValidationError.INVALID_EXTENSION)
                 !isValidUrlStructure(trimmed) ->
                     ValidationResult.Error(ValidationError.INVALID_URL_STRUCTURE)
@@ -132,8 +135,15 @@ data class DictionarySource(
                 val parts = afterProtocol.split("/")
                 if (parts.size < 2) return false
                 
-                val domain = parts[0]
-                if (domain.isEmpty()) return false
+                val hostWithPort = parts[0]
+                if (hostWithPort.isEmpty()) return false
+
+                val colonIndex = hostWithPort.lastIndexOf(':')
+                if (colonIndex >= 0) {
+                    val port = hostWithPort.substring(colonIndex + 1).toIntOrNull()
+                    if (port == null || port !in 1..65535) return false
+                }
+                val domain = if (colonIndex >= 0) hostWithPort.substring(0, colonIndex) else hostWithPort
                 if (domain != "localhost" && !domain.contains(".")) return false
                 
                 val filename = parts.last()

app/src/main/java/com/example/research/data/repository/LocalDictionaryRepository.kt

@@ -182,7 +182,7 @@ class LocalDictionaryRepository(
                 progressTracker = ProgressTracker(filesToScan)
 
                 existingDictionaries.forEach { dict ->
-                    progressTracker?.updateFileProgress(dict.name, 1.0f)
+                    progressTracker?.updateFileProgress(File(dict.path).name, 1.0f)
                 }
 
                 mutableIndexingProgress.emit(

app/src/main/java/com/example/research/feature/download/repository/DictionaryChecker.kt

@@ -64,7 +64,14 @@ class DictionaryChecker(
             val previousDate = DateUtils.getPreviousDateString()
             val dictFiles = getDictFiles(folderUri, files)
 
-            val allHaveToday = enabledSources.all { source ->
+            val datedSources = enabledSources.filter { source ->
+                DictionarySource.hasDatePlaceholder(source.urlTemplate)
+            }
+            if (datedSources.isEmpty()) {
+                return@withContext true
+            }
+
+            val allHaveToday = datedSources.all { source ->
                 dictFiles.hasFileForSource(source, currentDate)
             }
 
@@ -72,19 +79,28 @@ class DictionaryChecker(
                 return@withContext true
             }
 
-            val allHaveYesterday = enabledSources.all { source ->
+            val allHaveYesterday = datedSources.all { source ->
                 dictFiles.hasFileForSource(source, previousDate)
             }
 
             if (allHaveYesterday) {
-                val serverHasToday = enabledSources.any { source ->
+                val serverHasToday = datedSources.any { source ->
                     isSourceAvailableOnServer(source, currentDate)
                 }
 
                 return@withContext !serverHasToday
             }
 
-            false
+            val serverCanOfferNewer = datedSources.any { source ->
+                when (probeSource(source, currentDate)) {
+                    SourceAvailability.AVAILABLE -> true
+                    SourceAvailability.NOT_FOUND ->
+                        probeSource(source, previousDate) == SourceAvailability.AVAILABLE
+                    SourceAvailability.UNKNOWN -> false
+                }
+            }
+
+            return@withContext !serverCanOfferNewer
         } catch (e: Exception) {
             Log.e(TAG, "Error checking currency: ${e.message}", e)
             false

app/src/main/java/com/example/research/feature/download/service/DictionaryForegroundService.kt

@@ -88,6 +88,12 @@ class DictionaryForegroundService : Service() {
         stopForTimeout(startId)
     }
 
+    override fun onTaskRemoved(rootIntent: Intent?) {
+        cancelAllWork()
+        ServiceCompat.stopForeground(this, ServiceCompat.STOP_FOREGROUND_REMOVE)
+        stopSelf()
+    }
+
     override fun onTimeout(startId: Int, fgsType: Int) {
         stopForTimeout(startId)
     }
@@ -125,7 +131,7 @@ class DictionaryForegroundService : Service() {
                 startForegroundService()
             }
             ACTION_FINISH -> {
-                stopForegroundService(removeNotification = false)
+                stopForegroundService(removeNotification = true)
             }
             ACTION_STOP -> {
                 try {

app/src/main/java/com/example/research/feature/search/SearchViewModel.kt

@@ -122,6 +122,7 @@ class SearchViewModel(
             SearchAction.ClearQuery -> {
                 mutableSearchQuery.value = ""
                 savedStateHandle[KEY_SEARCH_QUERY] = ""
+                clearArticle()
             }
             is SearchAction.ArticleClicked -> {
                 articleHistory.clear()
@@ -136,6 +137,9 @@ class SearchViewModel(
     fun onSearchQueryChanged(query: String) {
         val sanitized = query.sanitizeQuery().trim()
         mutableSearchQuery.value = sanitized
+        if (sanitized.isBlank()) {
+            clearArticle()
+        }
         // Debounce SavedStateHandle writes to reduce disk I/O
         debounceSaveQueryJob?.cancel()
         debounceSaveQueryJob = viewModelScope.launch {

app/src/main/java/com/example/research/ui/article/ArticleScreen.kt

@@ -1,6 +1,7 @@
 package com.example.research.ui.article
 
 import androidx.compose.foundation.clickable
+import androidx.compose.foundation.interaction.MutableInteractionSource
 import androidx.compose.foundation.layout.*
 import androidx.compose.foundation.text.selection.SelectionContainer
 import androidx.compose.foundation.lazy.LazyColumn
@@ -11,6 +12,7 @@ import androidx.compose.runtime.*
 import androidx.compose.runtime.saveable.rememberSaveable
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.luminance
 import androidx.compose.ui.layout.onSizeChanged
 import androidx.compose.ui.platform.testTag
 import androidx.compose.ui.res.painterResource
@@ -18,6 +20,9 @@ import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.semantics.semantics
 import androidx.compose.ui.semantics.testTagsAsResourceId
 import androidx.compose.ui.unit.dp
+import androidx.compose.ui.text.AnnotatedString
+import androidx.compose.ui.text.TextStyle
+import androidx.compose.ui.text.style.LineHeightStyle
 import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.unit.IntSize
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
@@ -48,6 +53,54 @@ fun ArticleRoute(
     )
 }
 
+private const val MERGED_BLOCK_MAX_CHARS = 1500
+private const val MERGED_BLOCK_MAX_ITEMS = 12
+
+private fun mergeDslBlocks(blocks: List<DslBlock>): List<DslBlock> {
+    if (blocks.size <= MERGED_BLOCK_MAX_ITEMS) return blocks
+    val merged = ArrayList<DslBlock>(blocks.size / 4)
+    var i = 0
+    while (i < blocks.size) {
+        val builder = AnnotatedString.Builder()
+        val refs = ArrayList<DslAnnotatedParser.LazyRef>()
+        var j = i
+        while (j < blocks.size) {
+            val block = blocks[j]
+            repeat(block.indent) { builder.append(' ') }
+            val paraStart = builder.length
+            builder.append(block.text)
+            block.lazyRefs.forEach { ref ->
+                refs.add(
+                    ref.copy(
+                        startIndex = ref.startIndex + paraStart,
+                        endIndex = ref.endIndex + paraStart
+                    )
+                )
+            }
+            val more = j + 1 < blocks.size &&
+                (j + 1 - i) < MERGED_BLOCK_MAX_ITEMS &&
+                builder.length < MERGED_BLOCK_MAX_CHARS
+            if (more) {
+                builder.append('\n')
+            }
+            j++
+            if (!more) {
+                break
+            }
+        }
+        merged.add(
+            DslBlock(
+                text = builder.toAnnotatedString(),
+                indent = 0,
+                lazyRefs = refs,
+                continuesPrevious = blocks[i].continuesPrevious
+            )
+        )
+        i = j
+    }
+    return merged
+}
+
 @Composable
 fun ArticleContent(
     articleState: ArticleState?,
@@ -63,7 +116,11 @@ fun ArticleContent(
         is ArticleState.Success -> {
             val articleSaveKey = "${articleState.dictionaryPath}:${articleState.title}"
             val baseTextStyle = MaterialTheme.typography.bodyLarge.copy(
-                color = MaterialTheme.colorScheme.onSurface
+                color = MaterialTheme.colorScheme.onSurface,
+                lineHeightStyle = LineHeightStyle(
+                    alignment = LineHeightStyle.Alignment.Proportional,
+                    trim = LineHeightStyle.Trim.Both,
+                ),
             )
             val indentStep = 16.dp
 
@@ -123,36 +180,42 @@ fun ArticleContent(
             val isHeavyArticle =
                 articleState.dslContent.size > HEAVY_ARTICLE_BLOCK_COUNT
 
-            LazyColumn(
-                state = listState,
-                contentPadding = PaddingValues(top = Spacing.listItemVertical),
-                modifier = modifier
-                    .fillMaxSize()
-                    .onSizeChanged { viewportSize = it }
-                    .windowInsetsPadding(AppWindowInsets.horizontalSafeDrawing)
-                    .padding(end = 16.dp)
-                    .testTag("article_content")
-                    .semantics {
-                        testTagsAsResourceId = true
-                    }
+            val darkTheme = MaterialTheme.colorScheme.background.luminance() < 0.5f
+            val displayBlocks = remember(
+                articleState.dslContent,
+                baseTextStyle,
+                darkTheme
             ) {
-                itemsIndexed(
-                    items = articleState.dslContent,
-                    key = { index, _ ->
-                        // Use stable key combining article save key and index
-                        "$articleSaveKey:$index"
-                    },
-                    contentType = { _, _ -> "article_block" }
-                ) { index, block ->
-                    val followedByContinuation =
-                        articleState.dslContent.getOrNull(index + 1)?.continuesPrevious == true
-                    val textContent = @Composable {
+                val merged =
+                    mergeDslBlocks(articleState.dslContent)
+                if (darkTheme) {
+                    merged.map {
+                        it.copy(text = DslAnnotatedParser.remapForDarkTheme(it.text))
+                    }
+                } else {
+                    merged
+                }
+            }
+            val articleList: @Composable (Modifier) -> Unit = { listModifier ->
+                LazyColumn(
+                    state = listState,
+                    contentPadding = PaddingValues(top = Spacing.listItemVertical),
+                    modifier = listModifier
+                        .testTag("article_content")
+                        .semantics {
+                            testTagsAsResourceId = true
+                        }
+                ) {
+                    itemsIndexed(
+                        items = displayBlocks,
+                        key = { index, _ ->
+                            "$articleSaveKey:$index"
+                        },
+                        contentType = { _, _ -> "article_block" }
+                    ) { index, block ->
                         Box(
                             modifier = Modifier
-                                .padding(
-                                    start = Spacing.contentStart + indentStep * block.indent
-                                )
-                                .padding(bottom = if (followedByContinuation) 0.dp else 8.dp)
+                                .padding(start = Spacing.contentStart + indentStep * block.indent)
                         ) {
                             ArticleLinkText(
                                 block = block,
@@ -169,13 +232,18 @@ fun ArticleContent(
                             )
                         }
                     }
-                    if (isHeavyArticle) {
-                        textContent()
-                    } else {
-                        SelectionContainer { textContent() }
-                    }
                 }
             }
+            val articleListModifier = modifier
+                .fillMaxSize()
+                .onSizeChanged { viewportSize = it }
+                .windowInsetsPadding(AppWindowInsets.horizontalSafeDrawing)
+                .padding(end = 16.dp)
+            if (isHeavyArticle) {
+                articleList(articleListModifier)
+            } else {
+                SelectionContainer { articleList(articleListModifier) }
+            }
         }
         is ArticleState.Error -> {
             Column(
@@ -207,7 +275,9 @@ fun ArticleTitleBar(
     articleState: ArticleState?,
     showBackButton: Boolean,
     onNavigateBack: () -> Unit,
-    modifier: Modifier = Modifier
+    modifier: Modifier = Modifier,
+    compact: Boolean = false,
+    selectionReset: Int = 0,
 ) {
     val title = when (articleState) {
         is ArticleState.Loading -> articleState.title
@@ -226,9 +296,14 @@ fun ArticleTitleBar(
             modifier = Modifier
                 .fillMaxWidth()
                 .windowInsetsPadding(AppWindowInsets.topAndHorizontalSafeDrawing)
-                .padding(
-                    top = Spacing.listItemVertical,
-                    bottom = Spacing.listItemVertical
+                .then(
+                    if (compact) {
+                        Modifier.padding(vertical = Spacing.listItemVertical)
+                    } else {
+                        Modifier
+                            .padding(top = Spacing.topBarPadding, bottom = Spacing.topBarPadding)
+                            .height(Spacing.topBarHeight)
+                    }
                 ),
             verticalAlignment = Alignment.CenterVertically
         ) {
@@ -248,17 +323,21 @@ fun ArticleTitleBar(
                 }
             }
 
-            Text(
-                text = title,
-                style = MaterialTheme.typography.dictionaryTitleLarge,
-                color = MaterialTheme.colorScheme.onSurface,
-                maxLines = 1,
-                overflow = TextOverflow.Ellipsis,
-                modifier = Modifier
-                    .padding(start = if (showBackButton) Spacing.searchTextStart - Spacing.iconStart - 24.dp else 16.dp)
-                    .testTag("article_title")
-                    .semantics { testTagsAsResourceId = true }
-            )
+            key(selectionReset) {
+                SelectionContainer {
+                    Text(
+                        text = title,
+                        style = MaterialTheme.typography.dictionaryTitleLarge,
+                        color = MaterialTheme.colorScheme.onSurface,
+                        maxLines = 1,
+                        overflow = TextOverflow.Ellipsis,
+                        modifier = Modifier
+                            .padding(start = if (showBackButton) Spacing.searchTextStart - Spacing.iconStart - 24.dp else 16.dp)
+                            .testTag("article_title")
+                            .semantics { testTagsAsResourceId = true }
+                    )
+                }
+            }
         }
     }
 }
@@ -271,22 +350,31 @@ internal fun ArticleScreen(
     onRefClick: ((String) -> Unit)? = null,
     onScrollPositionChanged: ((Int, Int) -> Unit)? = null,
 ) {
-    Scaffold(
-        topBar = {
-            ArticleTitleBar(
+    val titleSelectionReset = remember { mutableIntStateOf(0) }
+    Box(
+        modifier = Modifier.clickable(
+            interactionSource = remember { MutableInteractionSource() },
+            indication = null
+        ) { titleSelectionReset.intValue++ }
+    ) {
+        Scaffold(
+            topBar = {
+                ArticleTitleBar(
+                    articleState = articleState,
+                    showBackButton = true,
+                    onNavigateBack = onNavigateBack,
+                    selectionReset = titleSelectionReset.intValue
+                )
+            },
+            contentWindowInsets = AppWindowInsets.contentWithNavigation
+        ) { padding ->
+            ArticleContent(
                 articleState = articleState,
-                showBackButton = true,
-                onNavigateBack = onNavigateBack
+                onNavigateBack = onNavigateBack,
+                onRefClick = onRefClick,
+                onScrollPositionChanged = onScrollPositionChanged,
+                modifier = Modifier.padding(padding)
             )
-        },
-        contentWindowInsets = AppWindowInsets.contentWithNavigation
-    ) { padding ->
-        ArticleContent(
-            articleState = articleState,
-            onNavigateBack = onNavigateBack,
-            onRefClick = onRefClick,
-            onScrollPositionChanged = onScrollPositionChanged,
-            modifier = Modifier.padding(padding)
-        )
+        }
     }
 }

app/src/main/java/com/example/research/ui/article/DslAnnotatedParser.kt

@@ -70,11 +70,6 @@ object DslAnnotatedParser {
         val endIndex: Int
     )
 
-    // Cache for applyLazyRefs results to avoid recreating AnnotatedString with links
-    // Size: 32 blocks - covers typical visible + prefetch range in LazyColumn
-    // Memory estimate: ~20KB per block average (AnnotatedString with LinkAnnotations)
-    // Total: ~640KB worst case
-    // LRU eviction automatic via LruCache
     private val refCache = object : androidx.collection.LruCache<Pair<DslBlock, Int>, AnnotatedString>(32) {
         override fun sizeOf(key: Pair<DslBlock, Int>, value: AnnotatedString): Int = 1
     }
@@ -90,7 +85,7 @@ object DslAnnotatedParser {
         val lazyRefs = mutableListOf<LazyRef>()
         var accentNext = false
         var currentIndent = 0
-        var mClosedPendingBreak = false
+        var lastAppended: Char? = null
         val exampleStyle = SpanStyle(color = colorScheme.secondaryText)
         val labelStyle = SpanStyle(color = colorScheme.labelText)
         val linkStyle = SpanStyle(color = colorScheme.linkText, textDecoration = TextDecoration.Underline)
@@ -108,32 +103,40 @@ object DslAnnotatedParser {
         }
 
         fun flushBlock() {
-            if (builder.length > 0) {
+            val text = builder.toAnnotatedString()
+            if (text.any { !it.isWhitespace() }) {
                 result.add(DslBlock(
-                    text = builder.toAnnotatedString(),
+                    text = text,
                     indent = currentIndent,
                     lazyRefs = lazyRefs.toList()
                 ))
-                builder = AnnotatedString.Builder()
-                stack.forEach { builder.pushStyle(it) }
-                lazyRefs.clear()
             }
-            mClosedPendingBreak = false
+            builder = AnnotatedString.Builder()
+            stack.forEach { builder.pushStyle(it) }
+            lazyRefs.clear()
+            lastAppended = null
         }
 
-        fun appendChar(char: Char) {
-            if (mClosedPendingBreak) {
-                mClosedPendingBreak = false
-                if (refStack.isEmpty() && !char.isWhitespace()) {
-                    flushBlock()
-                }
+        fun appendChar(char: Char, hard: Boolean = false) {
+            if (char == ' ' && !hard) {
+                if (lastAppended == null || lastAppended == ' ') return
             }
+            lastAppended = char
             builder.append(char)
             if (refStack.isNotEmpty()) {
                 refStack.last().second.append(char)
             }
         }
 
+        fun appendText(value: String) {
+            if (value.isEmpty()) return
+            builder.append(value)
+            if (refStack.isNotEmpty()) {
+                refStack.last().second.append(value)
+            }
+            lastAppended = value.last()
+        }
+
         fun marginIndent(tagName: String): Int {
             if (tagName == "m" || tagName == "m0" || tagName == "m1") return 0
             val margin = tagName.drop(1).toIntOrNull() ?: return 0
@@ -147,7 +150,7 @@ object DslAnnotatedParser {
             when (val char = dsl[i]) {
                 '\\' -> {
                     if (i + 1 < length) {
-                        appendChar(dsl[i + 1])
+                        appendChar(dsl[i + 1], hard = true)
                         i += 2
                         continue
                     }
@@ -187,10 +190,11 @@ object DslAnnotatedParser {
                                 } else if (tagName == "'") {
                                     accentNext = false
                                 }
-                                if (tagName.startsWith("m")) {
-                                    mClosedPendingBreak = true
-                                }
                                 pop()
+                                if (tagName.startsWith("m")) {
+                                    flushBlock()
+                                    currentIndent = 0
+                                }
                             } else {
                                 when (tagName) {
                                     "'" -> {
@@ -205,12 +209,12 @@ object DslAnnotatedParser {
                                         }
                                     }
                                     "p" -> {
-                                        push(labelStyle)
+                                        push(labelStyle.copy(fontStyle = FontStyle.Italic))
                                     }
                                     "b" -> push(SpanStyle(fontWeight = FontWeight.Bold))
                                     "m", "m0", "m1", "m2", "m3", "m4", "m5" -> {
-                                        if (builder.length > 0) {
-                                            if (refStack.isEmpty()) flushBlock() else builder.append("\n")
+                                        if (lastAppended != null && !lastAppended!!.isWhitespace()) {
+                                            flushBlock()
                                         }
                                         currentIndent = marginIndent(tagName)
                                         push(exampleStyle)
@@ -243,6 +247,18 @@ object DslAnnotatedParser {
                     appendChar(char)
                     i++
                 }
+                '\n' -> {
+                    if (refStack.isEmpty()) {
+                        flushBlock()
+                    } else {
+                        appendChar(char)
+                    }
+                    i++
+                }
+                '\t' -> {
+                    appendText("\u2002")
+                    i++
+                }
                 else -> {
                     appendChar(char)
 
@@ -395,6 +411,35 @@ object DslAnnotatedParser {
         linkText = Color(0xFF1E88E5),
     )
 
+    private val DARK_THEME_COLORS: Map<Color, Color> = mapOf(
+        Color(0xFF000000) to Color(0xFFE8E6E3),
+        Color(0xFF000080) to Color(0xFF8FA8E0),
+        Color(0xFF00008B) to Color(0xFF8FA8E0),
+        Color(0xFF0000FF) to Color(0xFF7C9CE8),
+        Color(0xFF006400) to Color(0xFF66BB6A),
+        Color(0xFF008000) to Color(0xFF66BB6A),
+        Color(0xFF8B0000) to Color(0xFFE57373),
+        Color(0xFF800000) to Color(0xFFE57373),
+        Color(0xFF800080) to Color(0xFFBA68C8),
+        Color(0xFFA52A2A) to Color(0xFFBCAAA4),
+        Color(0xFF008080) to Color(0xFF4DB6AC),
+        Color(0xFF808000) to Color(0xFFC0CA33),
+    )
+
+    fun remapForDarkTheme(text: AnnotatedString): AnnotatedString {
+        if (text.spanStyles.none { it.item.color in DARK_THEME_COLORS }) return text
+        val builder = AnnotatedString.Builder(text.text)
+        text.spanStyles.forEach { range ->
+            val style = DARK_THEME_COLORS[range.item.color]
+                ?.let { range.item.copy(color = it) } ?: range.item
+            builder.addStyle(style, range.start, range.end)
+        }
+        text.paragraphStyles.forEach { range ->
+            builder.addStyle(range.item, range.start, range.end)
+        }
+        return builder.toAnnotatedString()
+    }
+
     // Allow external cache clearing (e.g., when dictionaries change)
     fun clearRefCache() {
         refCache.evictAll()

app/src/main/java/com/example/research/ui/main/AdaptiveMainScreen.kt

@@ -1,5 +1,7 @@
 package com.example.research.ui.main
 
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.interaction.MutableInteractionSource
 import androidx.compose.foundation.layout.*
 import androidx.compose.runtime.*
 import androidx.compose.ui.Modifier
@@ -90,15 +92,22 @@ fun AdaptiveMainScreen(
                 )
             },
             detailPane = {
+                val titleSelectionReset = remember { mutableIntStateOf(0) }
                 Column(
                     modifier = Modifier
                         .fillMaxSize()
+                        .clickable(
+                            interactionSource = remember { MutableInteractionSource() },
+                            indication = null
+                        ) { titleSelectionReset.intValue++ }
                         .padding(bottom = 16.dp)
                 ) {
                     ArticleTitleBar(
                         articleState = articleState,
                         showBackButton = isShowingDetail && articleState != null,
                         onNavigateBack = onNavigateBackFromArticle,
+                        compact = true,
+                        selectionReset = titleSelectionReset.intValue,
                         modifier = Modifier.windowInsetsPadding(
                             WindowInsets.safeDrawing.only(WindowInsetsSides.Top)
                         )

app/src/main/java/com/example/research/ui/main/SearchResultsPane.kt

@@ -8,6 +8,7 @@ import androidx.compose.foundation.layout.ime
 import androidx.compose.foundation.text.input.TextFieldState
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.SideEffect
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
@@ -50,6 +51,7 @@ internal fun SearchResultsPane(
     var restoredScrollPosition by remember { mutableStateOf(false) }
     var pendingScrollToTop by remember { mutableStateOf(false) }
     var sawRefreshForPendingScroll by remember { mutableStateOf(false) }
+    var staleEntries by remember { mutableStateOf(emptyList<IndexEntry>()) }
     val imeBottomPadding = with(LocalDensity.current) {
         WindowInsets.ime.getBottom(this).toDp()
     }
@@ -72,9 +74,22 @@ internal fun SearchResultsPane(
                 restoredScrollPosition = true
                 pendingScrollToTop = query.isNotBlank()
                 sawRefreshForPendingScroll = false
+                if (query.isBlank()) {
+                    staleEntries = emptyList()
+                }
             }
     }
 
+    val loaded = results.itemSnapshotList.items.filterNotNull()
+    SideEffect {
+        if (results.loadState.refresh is LoadState.NotLoading && loaded.isNotEmpty()) {
+            staleEntries = loaded
+        }
+    }
+    val pendingReload = results.itemCount == 0 &&
+        results.loadState.refresh is LoadState.Loading
+    val shownStale = if (pendingReload && searchState.text.isNotBlank()) staleEntries else emptyList()
+
     LaunchedEffect(results.loadState.refresh, pendingScrollToTop) {
         if (pendingScrollToTop && results.loadState.refresh is LoadState.Loading) {
             sawRefreshForPendingScroll = true
@@ -125,6 +140,7 @@ internal fun SearchResultsPane(
             listState = listState,
             showDictionaryName = showDictionaryName,
             contentPadding = PaddingValues(bottom = imeBottomPadding),
+            staleEntries = shownStale,
         )
     }
 }

app/src/main/java/com/example/research/ui/main/components/SearchResultsList.kt

@@ -30,8 +30,11 @@ fun SearchResultsList(
     modifier: Modifier = Modifier,
     listState: LazyListState = rememberLazyListState(),
     showDictionaryName: Boolean = true,
-    contentPadding: PaddingValues = PaddingValues()
+    contentPadding: PaddingValues = PaddingValues(),
+    staleEntries: List<IndexEntry> = emptyList(),
 ) {
+    val showStale = staleEntries.isNotEmpty() && results.itemCount == 0
+    val rowCount = if (showStale) staleEntries.size else results.itemCount
     LazyColumn(
         modifier = modifier
             .testTag("search_results")
@@ -41,11 +44,18 @@ fun SearchResultsList(
         verticalArrangement = Arrangement.spacedBy(4.dp)
     ) {
         items(
-            count = results.itemCount,
-            key = results.itemKey { "${it.dictionaryPath}:${it.offset.value}:${it.word}" },
-            contentType = results.itemContentType { "search_result" }
+            count = rowCount,
+            key = { index ->
+                val entry = if (showStale) staleEntries.getOrNull(index)
+                else if (index in 0 until results.itemCount) results.peek(index) else null
+                entry?.let { "${it.dictionaryPath}:${it.offset.value}:${it.word}" }
+                    ?: "search_result_$index"
+            },
+            contentType = { "search_result" }
         ) { index ->
-            results[index]?.let { entry ->
+            val entry = if (showStale) staleEntries.getOrNull(index)
+            else if (index in 0 until results.itemCount) results.peek(index) else null
+            if (entry != null) {
                 Box(
                     modifier = Modifier.animateItem(
                         fadeInSpec = if (index < 8) tween(150) else null,

app/src/main/java/com/example/research/ui/settings/components/DictionaryManagement.kt

@@ -1,7 +1,12 @@
 package com.example.research.ui.settings.components
 
+import androidx.compose.animation.AnimatedVisibility
 import androidx.compose.animation.core.animateFloatAsState
 import androidx.compose.animation.core.tween
+import androidx.compose.animation.expandVertically
+import androidx.compose.animation.fadeIn
+import androidx.compose.animation.fadeOut
+import androidx.compose.animation.shrinkVertically
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
@@ -115,7 +120,11 @@ fun DictionaryManagement(
                 testTag = "dictionary_header"
             )
 
-            if (isExpanded) {
+            AnimatedVisibility(
+                visible = isExpanded,
+                enter = expandVertically(animationSpec = tween(250)) + fadeIn(tween(250)),
+                exit = shrinkVertically(animationSpec = tween(200)) + fadeOut(tween(200)),
+            ) {
                  Column(
                     modifier = Modifier
                         .fillMaxWidth()

app/src/main/res/values-ru/strings.xml

@@ -47,6 +47,7 @@
     <string name="notification_download_error_title">Ошибка загрузки</string>
     <string name="notification_download_error_text">Не удалось скачать словари</string>
     <string name="notification_indexing_title">Индексация словарей</string>
+    <string name="notification_preparing_indexing_title">Подготовка словарей к индексации</string>
     <string name="archive_failed_open_source_file">Не удалось открыть исходный файл</string>
     <string name="archive_failed_create_output_file">Не удалось создать выходной файл</string>
     <string name="archive_failed_delete_file">Не удалось удалить файл: %1$s</string>
@@ -76,7 +77,7 @@
     <string name="dictionary_source_duplicate_prefix">Этот словарь уже существует (одинаковый префикс)</string>
     <string name="dictionary_source_url_empty">URL не может быть пустым</string>
     <string name="dictionary_source_invalid_protocol">Должен начинаться с http:// или https://</string>
-    <string name="dictionary_source_invalid_extension">Должен заканчиваться на .gz, .dsl или .dz</string>
+    <string name="dictionary_source_invalid_extension">Должен заканчиваться на .gz, .dsl или .dsl.dz</string>
     <string name="dictionary_source_too_long">URL слишком длинный (максимум 2048 символов)</string>
     <string name="dictionary_source_invalid_url">Неверный формат URL</string>
     <string name="dictionary_source_suspicious_characters">URL содержит недопустимые символы</string>

app/src/main/res/values/strings.xml

@@ -47,6 +47,7 @@
     <string name="notification_download_error_title">Download error</string>
     <string name="notification_download_error_text">Failed to download dictionaries</string>
     <string name="notification_indexing_title">Indexing dictionaries</string>
+    <string name="notification_preparing_indexing_title">Preparing dictionaries for indexing</string>
     <string name="archive_failed_open_source_file">Failed to open source file</string>
     <string name="archive_failed_create_output_file">Failed to create output file</string>
     <string name="archive_failed_delete_file">Failed to delete file: %1$s</string>
@@ -74,7 +75,7 @@
     <string name="dictionary_source_duplicate_prefix">This dictionary already exists</string>
     <string name="dictionary_source_url_empty">URL cannot be empty</string>
     <string name="dictionary_source_invalid_protocol">Must start with http:// or https://</string>
-    <string name="dictionary_source_invalid_extension">Must end with .gz, .dsl, or .dz</string>
+    <string name="dictionary_source_invalid_extension">Must end with .gz, .dsl, or .dsl.dz</string>
     <string name="dictionary_source_too_long">URL is too long (max 2048 characters)</string>
     <string name="dictionary_source_invalid_url">Invalid URL format</string>
     <string name="dictionary_source_suspicious_characters">URL contains invalid characters</string>

fastlane/metadata/android/en-US/changelogs/9.txt

@@ -1,7 +1,16 @@
 - The app starts faster
 - Smooth screen transition animations
+- Articles render DSL line breaks, indentation and named colors correctly
+- Tabs and extra spaces inside articles no longer break the layout
+- The article title can be copied, tapping the article clears the selection
+- Source URLs accept host:port addresses
 - Dictionary downloads retry automatically when the network switches
 - Download progress notifications are more reliable
 - Search results clear instantly when the query is erased
 - Leftover files from cancelled downloads are now removed automatically
+- Improved app stability
+- Faster dictionary indexing
 - Updated build tooling and documentation
+- Long link-heavy articles no longer freeze while scrolling
+- Large search result lists render faster
+- Dark article colors are readable in the dark theme

fastlane/metadata/android/ru-RU/changelogs/9.txt

@@ -1,7 +1,16 @@
 - Приложение запускается быстрее
 - Плавные анимации переходов между экранами
+- Статьи корректно отображают переносы строк, отступы и цвета из DSL-разметки
+- Табуляции и лишние пробелы в статьях больше не ломают вёрстку
+- Заголовок статьи можно скопировать, тап по статье сбрасывает выделение
+- Адреса источников принимают формат host:port
 - Загрузка словарей автоматически повторяется при переключении сети
 - Уведомления о прогрессе загрузки стали надёжнее
 - Результаты поиска очищаются мгновенно при стирании запроса
 - Остаточные файлы после отменённых загрузок удаляются автоматически
+- Повышена стабильность приложения
+- Ускорена индексация словарей
 - Обновлены тулинг сборки и документация
+- Длинные статьи со ссылками больше не подвисают при прокрутке
+- Большие списки результатов поиска отображаются быстрее
+- Тёмные цвета статей читаемы в тёмной теме

gradle/libs.versions.toml

@@ -1,12 +1,12 @@
 [versions]
 aboutlibraries = "15.2.0"
 activity_compose = "1.13.0"
-agp = "9.3.1"
-compose_bom = "2026.08.00"
-core = "1.19.0"
+agp = "9.4.1"
+compose_bom = "2026.09.00"
+core = "1.19.1"
 datastore_preferences = "1.2.1"
 documentfile = "1.1.0"
-kotlin = "2.4.10"
+kotlin = "2.4.20"
 lifecycle_runtime_ktx = "2.11.0"
 okhttp = "5.5.0"
 paging = "3.5.1"