Generalizes the hashtag and index tag parser for the content as well as the way to pass params to build them on create.

amethyst/src/main/java/com/vitorpamplona/amethyst/model/Account.kt

@@ -2275,7 +2275,6 @@ class Account(
             replyTos = repliesToHex,
             mentions = mentionsHex,
             addresses = addresses,
-            extraTags = null,
             zapReceiver = zapReceiver,
             markAsSensitive = wantsToMarkAsSensitive,
             zapRaiserAmount = zapRaiserAmount,

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/search/SearchBarViewModel.kt

@@ -35,7 +35,7 @@ import com.vitorpamplona.amethyst.model.LocalCache
 import com.vitorpamplona.amethyst.model.Note
 import com.vitorpamplona.amethyst.model.User
 import com.vitorpamplona.ammolite.relays.BundledUpdate
-import com.vitorpamplona.quartz.nip10Notes.findHashtags
+import com.vitorpamplona.quartz.nip10Notes.content.findHashtags
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.asStateFlow

quartz/src/main/java/com/vitorpamplona/quartz/experimental/interactiveStories/InteractiveStoryBaseEvent.kt

@@ -25,8 +25,10 @@ import com.vitorpamplona.quartz.nip01Core.core.BaseAddressableEvent
 import com.vitorpamplona.quartz.nip01Core.core.firstTagValue
 import com.vitorpamplona.quartz.nip01Core.tags.addressables.ATag
 import com.vitorpamplona.quartz.nip01Core.tags.geohash.geohashMipMap
-import com.vitorpamplona.quartz.nip10Notes.findHashtags
-import com.vitorpamplona.quartz.nip10Notes.findURLs
+import com.vitorpamplona.quartz.nip01Core.tags.hashtags.buildHashtagTags
+import com.vitorpamplona.quartz.nip10Notes.content.buildUrlRefs
+import com.vitorpamplona.quartz.nip10Notes.content.findHashtags
+import com.vitorpamplona.quartz.nip10Notes.content.findURLs
 import com.vitorpamplona.quartz.nip19Bech32.parse
 import com.vitorpamplona.quartz.nip30CustomEmoji.EmojiUrl
 import com.vitorpamplona.quartz.nip57Zaps.ZapSplitSetup
@@ -64,14 +66,9 @@ open class InteractiveStoryBaseEvent(
             emojis: List<EmojiUrl>? = null,
         ): Array<Array<String>> {
             val tags = mutableListOf<Array<String>>()
-            findHashtags(content).forEach {
-                val lowercaseTag = it.lowercase()
-                tags.add(arrayOf("t", it))
-                if (it != lowercaseTag) {
-                    tags.add(arrayOf("t", it.lowercase()))
-                }
-            }
-            findURLs(content).forEach { tags.add(arrayOf("r", it)) }
+
+            tags.addAll(buildHashtagTags(findHashtags(content)))
+            tags.addAll(buildUrlRefs(findURLs(content)))
 
             zapReceiver?.forEach {
                 tags.add(arrayOf("zap", it.lnAddressOrPubKeyHex, it.relay ?: "", it.weight.toString()))

quartz/src/main/java/com/vitorpamplona/quartz/nip01Core/tags/geohash/GeoHash.kt

@@ -20,7 +20,9 @@
  */
 package com.vitorpamplona.quartz.nip01Core.tags.geohash
 
-fun geohashMipMap(geohash: String): Array<Array<String>> =
+import com.vitorpamplona.quartz.nip01Core.core.TagArray
+
+fun geohashMipMap(geohash: String): TagArray =
     geohash.indices
         .asSequence()
         .map { arrayOf("g", geohash.substring(0, it + 1)) }

quartz/src/main/java/com/vitorpamplona/quartz/nip01Core/tags/hashtags/HashTags.kt

@@ -0,0 +1,37 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.quartz.nip01Core.tags.hashtags
+
+fun buildHashtagTags(tags: List<String>): List<Array<String>> {
+    val uniqueTags = mutableSetOf<String>()
+
+    tags.forEach { tag ->
+        uniqueTags.add(tag)
+        val lowercaseTag = tag.lowercase()
+        if (tag != lowercaseTag) {
+            uniqueTags.add(lowercaseTag)
+        }
+    }
+
+    return uniqueTags.map {
+        arrayOf("t", it)
+    }
+}

quartz/src/main/java/com/vitorpamplona/quartz/nip10Notes/BaseTextNoteEvent.kt

@@ -20,15 +20,15 @@
  */
 package com.vitorpamplona.quartz.nip10Notes
 
-import android.util.Log
 import androidx.compose.runtime.Immutable
 import com.vitorpamplona.quartz.nip01Core.HexKey
 import com.vitorpamplona.quartz.nip01Core.core.Event
 import com.vitorpamplona.quartz.nip01Core.tags.addressables.ATag
 import com.vitorpamplona.quartz.nip01Core.tags.addressables.taggedAddresses
 import com.vitorpamplona.quartz.nip01Core.tags.people.taggedUsers
+import com.vitorpamplona.quartz.nip10Notes.content.findIndexTagsWithEventsOrAddresses
+import com.vitorpamplona.quartz.nip10Notes.content.findIndexTagsWithPeople
 import com.vitorpamplona.quartz.nip19Bech32.Nip19Parser
-import com.vitorpamplona.quartz.nip19Bech32.Nip19Parser.nip19regex
 import com.vitorpamplona.quartz.nip19Bech32.entities.NAddress
 import com.vitorpamplona.quartz.nip19Bech32.entities.NEmbed
 import com.vitorpamplona.quartz.nip19Bech32.entities.NEvent
@@ -39,10 +39,6 @@ import com.vitorpamplona.quartz.nip19Bech32.parse
 import com.vitorpamplona.quartz.nip19Bech32.parseAtag
 import com.vitorpamplona.quartz.nip54Wiki.WikiNoteEvent
 import com.vitorpamplona.quartz.nip72ModCommunities.CommunityDefinitionEvent
-import java.util.regex.Pattern
-
-val tagSearch = Pattern.compile("(?:\\s|\\A)\\#\\[([0-9]+)\\]")
-val hashtagSearch = Pattern.compile("(?:\\s|\\A)#([^\\s!@#\$%^&*()=+./,\\[{\\]};:'\"?><]+)")
 
 @Immutable
 open class BaseTextNoteEvent(
@@ -111,44 +107,19 @@ open class BaseTextNoteEvent(
             return it
         }
 
-        val matcher = tagSearch.matcher(content)
-        val returningList = mutableSetOf<String>()
-        while (matcher.find()) {
-            try {
-                val tag = matcher.group(1)?.let { tags[it.toInt()] }
-                if (tag != null && tag.size > 1 && tag[0] == "p") {
-                    returningList.add(tag[1])
-                }
-            } catch (e: Exception) {
+        val citedUsers = mutableSetOf<String>()
+
+        findIndexTagsWithPeople(content, tags, citedUsers)
+
+        Nip19Parser.parseAll(content).forEach { parsed ->
+            when (parsed) {
+                is NProfile -> citedUsers.add(parsed.hex)
+                is NPub -> citedUsers.add(parsed.hex)
             }
         }
 
-        val matcher2 = nip19regex.matcher(content)
-        while (matcher2.find()) {
-            val type = matcher2.group(2) // npub1
-            val key = matcher2.group(3) // bech32
-            val additionalChars = matcher2.group(4) // additional chars
-
-            try {
-                if (type != null) {
-                    val parsed = Nip19Parser.parseComponents(type, key, additionalChars)?.entity
-
-                    if (parsed != null) {
-                        if (parsed is NProfile) {
-                            returningList.add(parsed.hex)
-                        }
-                        if (parsed is NPub) {
-                            returningList.add(parsed.hex)
-                        }
-                    }
-                }
-            } catch (e: Exception) {
-                Log.w("Unable to parse cited users that matched a NIP19 regex", e)
-            }
-        }
-
-        citedUsersCache = returningList
-        return returningList
+        citedUsersCache = citedUsers
+        return citedUsers
     }
 
     fun findCitations(): Set<HexKey> {
@@ -156,39 +127,16 @@ open class BaseTextNoteEvent(
             return it
         }
 
-        val citations = mutableSetOf<HexKey>()
-        // Removes citations from replies:
-        val matcher = tagSearch.matcher(content)
-        while (matcher.find()) {
-            try {
-                val tag = matcher.group(1)?.let { tags[it.toInt()] }
-                if (tag != null && tag.size > 1 && tag[0] == "e") {
-                    citations.add(tag[1])
-                }
-                if (tag != null && tag.size > 1 && tag[0] == "a") {
-                    citations.add(tag[1])
-                }
-            } catch (e: Exception) {
-            }
-        }
+        val citations = mutableSetOf<String>()
 
-        val matcher2 = nip19regex.matcher(content)
-        while (matcher2.find()) {
-            val type = matcher2.group(2) // npub1
-            val key = matcher2.group(3) // bech32
-            val additionalChars = matcher2.group(4) // additional chars
+        findIndexTagsWithEventsOrAddresses(content, tags, citations).toMutableSet()
 
-            if (type != null) {
-                val parsed = Nip19Parser.parseComponents(type, key, additionalChars)?.entity
-
-                if (parsed != null) {
-                    when (parsed) {
-                        is NEvent -> citations.add(parsed.hex)
-                        is NAddress -> citations.add(parsed.aTag())
-                        is Note -> citations.add(parsed.hex)
-                        is NEmbed -> citations.add(parsed.event.id)
-                    }
-                }
+        Nip19Parser.parseAll(content).forEach { entity ->
+            when (entity) {
+                is NEvent -> citations.add(entity.hex)
+                is NAddress -> citations.add(entity.aTag())
+                is Note -> citations.add(entity.hex)
+                is NEmbed -> citations.add(entity.event.id)
             }
         }
 
@@ -227,18 +175,3 @@ open class BaseTextNoteEvent(
         }
     }
 }
-
-fun findHashtags(content: String): List<String> {
-    val matcher = hashtagSearch.matcher(content)
-    val returningList = mutableSetOf<String>()
-    while (matcher.find()) {
-        try {
-            val tag = matcher.group(1)
-            if (tag != null && tag.isNotBlank()) {
-                returningList.add(tag)
-            }
-        } catch (e: Exception) {
-        }
-    }
-    return returningList.toList()
-}

quartz/src/main/java/com/vitorpamplona/quartz/nip10Notes/ETag.kt

@@ -20,12 +20,9 @@
  */
 package com.vitorpamplona.quartz.nip10Notes
 
-import android.util.Log
 import androidx.compose.runtime.Immutable
 import com.vitorpamplona.quartz.nip01Core.HexKey
-import com.vitorpamplona.quartz.nip19Bech32.Nip19Parser
 import com.vitorpamplona.quartz.nip19Bech32.entities.NEvent
-import com.vitorpamplona.quartz.nip19Bech32.entities.Note
 import com.vitorpamplona.quartz.utils.bytesUsedInMemory
 import com.vitorpamplona.quartz.utils.pointerSizeInBytes
 import com.vitorpamplona.quartz.utils.removeTrailingNullsAndEmptyOthers
@@ -52,21 +49,4 @@ data class ETag(
     fun toETagArray() = removeTrailingNullsAndEmptyOthers("e", eventId, relay, authorPubKeyHex)
 
     fun toQTagArray() = removeTrailingNullsAndEmptyOthers("q", eventId, relay, authorPubKeyHex)
-
-    companion object {
-        fun parseNIP19(nevent: String): ETag? {
-            try {
-                val parsed = Nip19Parser.uriToRoute(nevent)?.entity
-
-                return when (parsed) {
-                    is Note -> ETag(parsed.hex)
-                    is NEvent -> ETag(parsed.hex, parsed.author, parsed.relay.firstOrNull())
-                    else -> null
-                }
-            } catch (e: Throwable) {
-                Log.w("PTag", "Issue trying to Decode NIP19 $this: ${e.message}")
-                return null
-            }
-        }
-    }
 }

quartz/src/main/java/com/vitorpamplona/quartz/nip10Notes/TextNoteEvent.kt

@@ -21,14 +21,16 @@
 package com.vitorpamplona.quartz.nip10Notes
 
 import androidx.compose.runtime.Immutable
-import com.linkedin.urls.detection.UrlDetector
-import com.linkedin.urls.detection.UrlDetectorOptions
 import com.vitorpamplona.quartz.nip01Core.HexKey
 import com.vitorpamplona.quartz.nip01Core.core.AddressableEvent
 import com.vitorpamplona.quartz.nip01Core.core.Event
 import com.vitorpamplona.quartz.nip01Core.signers.NostrSigner
 import com.vitorpamplona.quartz.nip01Core.tags.addressables.ATag
 import com.vitorpamplona.quartz.nip01Core.tags.geohash.geohashMipMap
+import com.vitorpamplona.quartz.nip01Core.tags.hashtags.buildHashtagTags
+import com.vitorpamplona.quartz.nip10Notes.content.buildUrlRefs
+import com.vitorpamplona.quartz.nip10Notes.content.findHashtags
+import com.vitorpamplona.quartz.nip10Notes.content.findURLs
 import com.vitorpamplona.quartz.nip30CustomEmoji.EmojiUrl
 import com.vitorpamplona.quartz.nip57Zaps.ZapSplitSetup
 import com.vitorpamplona.quartz.nip92IMeta.IMetaTag
@@ -112,18 +114,11 @@ class TextNoteEvent(
                         ),
                     )
                 }
-            findHashtags(msg).forEach {
-                val lowercaseTag = it.lowercase()
-                tags.add(arrayOf("t", it))
-                if (it != lowercaseTag) {
-                    tags.add(arrayOf("t", it.lowercase()))
-                }
-            }
-            extraTags?.forEach { tags.add(arrayOf("t", it)) }
+            tags.addAll(buildHashtagTags(findHashtags(msg) + (extraTags ?: emptyList())))
+            tags.addAll(buildUrlRefs(findURLs(msg)))
             zapReceiver?.forEach {
                 tags.add(arrayOf("zap", it.lnAddressOrPubKeyHex, it.relay ?: "", it.weight.toString()))
             }
-            findURLs(msg).forEach { tags.add(arrayOf("r", it)) }
             if (markAsSensitive) {
                 tags.add(arrayOf("content-warning", ""))
             }
@@ -141,8 +136,6 @@ class TextNoteEvent(
     }
 }
 
-fun findURLs(text: String): List<String> = UrlDetector(text, UrlDetectorOptions.Default).detect().map { it.originalUrl }
-
 /**
  * Returns a list of NIP-10 marked tags that are also ordered at best effort to support the
  * deprecated method of positional tags to maximize backwards compatibility with clients that

quartz/src/main/java/com/vitorpamplona/quartz/nip10Notes/content/ContentHashTags.kt

@@ -0,0 +1,42 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.quartz.nip10Notes.content
+
+import java.util.regex.Pattern
+
+val hashtagSearch = Pattern.compile("(?:\\s|\\A)#([^\\s!@#\$%^&*()=+./,\\[{\\]};:'\"?><]+)")
+
+fun findHashtags(
+    content: String,
+    output: MutableSet<String> = mutableSetOf(),
+): List<String> {
+    val matcher = hashtagSearch.matcher(content)
+    while (matcher.find()) {
+        try {
+            val tag = matcher.group(1)
+            if (tag != null && tag.isNotBlank()) {
+                output.add(tag)
+            }
+        } catch (e: Exception) {
+        }
+    }
+    return output.toList()
+}

quartz/src/main/java/com/vitorpamplona/quartz/nip10Notes/content/IndexedTags.kt

@@ -0,0 +1,72 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.quartz.nip10Notes.content
+
+import com.vitorpamplona.quartz.nip01Core.core.TagArray
+import java.util.regex.Pattern
+
+val tagSearch = Pattern.compile("(?:\\s|\\A)\\#\\[([0-9]+)\\]")
+
+/**
+ * Returns the old-style [1] tag that pionts to an index in the tag array
+ */
+fun findIndexTagsWithPeople(
+    content: String,
+    tags: TagArray,
+    output: MutableSet<String> = mutableSetOf<String>(),
+): List<String> {
+    val matcher = tagSearch.matcher(content)
+    while (matcher.find()) {
+        try {
+            val tag = matcher.group(1)?.let { tags[it.toInt()] }
+            if (tag != null && tag.size > 1 && tag[0] == "p") {
+                output.add(tag[1])
+            }
+        } catch (e: Exception) {
+        }
+    }
+
+    return output.toList()
+}
+
+/**
+ * Returns the old-style [1] tag that pionts to an index in the tag array
+ */
+fun findIndexTagsWithEventsOrAddresses(
+    content: String,
+    tags: TagArray,
+    output: MutableSet<String> = mutableSetOf<String>(),
+): Set<String> {
+    val matcher = tagSearch.matcher(content)
+    while (matcher.find()) {
+        try {
+            val tag = matcher.group(1)?.let { tags[it.toInt()] }
+            if (tag != null && tag.size > 1 && tag[0] == "e") {
+                output.add(tag[1])
+            }
+            if (tag != null && tag.size > 1 && tag[0] == "a") {
+                output.add(tag[1])
+            }
+        } catch (e: Exception) {
+        }
+    }
+    return output
+}

quartz/src/main/java/com/vitorpamplona/quartz/nip10Notes/content/Urls.kt

@@ -0,0 +1,35 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.quartz.nip10Notes.content
+
+import com.linkedin.urls.detection.UrlDetector
+import com.linkedin.urls.detection.UrlDetectorOptions
+import com.vitorpamplona.quartz.nip96FileStorage.HttpUrlFormatter
+
+fun findURLs(text: String): List<String> = UrlDetector(text, UrlDetectorOptions.Default).detect().map { it.originalUrl }
+
+fun buildUrlRefs(urls: List<String>): List<Array<String>> =
+    urls
+        .mapTo(HashSet()) { url ->
+            HttpUrlFormatter.normalize(url)
+        }.map {
+            arrayOf("r", it)
+        }

quartz/src/main/java/com/vitorpamplona/quartz/nip19Bech32/Nip19Parser.kt

@@ -129,6 +129,25 @@ object Nip19Parser {
             Log.w("NIP19 Parser", "Issue trying to Decode NIP19 $key: ${e.message}", e)
             null
         }
+
+    fun parseAll(content: String): List<Entity> {
+        val matcher2 = nip19regex.matcher(content)
+        val returningList = mutableListOf<Entity>()
+        while (matcher2.find()) {
+            val type = matcher2.group(2) // npub1
+            val key = matcher2.group(3) // bech32
+            val additionalChars = matcher2.group(4) // additional chars
+
+            if (type != null) {
+                val parsed = Nip19Parser.parseComponents(type, key, additionalChars)?.entity
+
+                if (parsed != null) {
+                    returningList.add(parsed)
+                }
+            }
+        }
+        return returningList
+    }
 }
 
 fun decodePublicKey(key: String): ByteArray =

quartz/src/main/java/com/vitorpamplona/quartz/nip22Comments/CommentEvent.kt

@@ -28,11 +28,13 @@ import com.vitorpamplona.quartz.nip01Core.core.Event
 import com.vitorpamplona.quartz.nip01Core.signers.NostrSigner
 import com.vitorpamplona.quartz.nip01Core.tags.addressables.ATag
 import com.vitorpamplona.quartz.nip01Core.tags.geohash.geohashMipMap
+import com.vitorpamplona.quartz.nip01Core.tags.hashtags.buildHashtagTags
 import com.vitorpamplona.quartz.nip10Notes.BaseTextNoteEvent
 import com.vitorpamplona.quartz.nip10Notes.ETag
 import com.vitorpamplona.quartz.nip10Notes.PTag
-import com.vitorpamplona.quartz.nip10Notes.findHashtags
-import com.vitorpamplona.quartz.nip10Notes.findURLs
+import com.vitorpamplona.quartz.nip10Notes.content.buildUrlRefs
+import com.vitorpamplona.quartz.nip10Notes.content.findHashtags
+import com.vitorpamplona.quartz.nip10Notes.content.findURLs
 import com.vitorpamplona.quartz.nip19Bech32.parseAtag
 import com.vitorpamplona.quartz.nip30CustomEmoji.EmojiUrl
 import com.vitorpamplona.quartz.nip57Zaps.ZapSplitSetup
@@ -205,15 +207,8 @@ class CommentEvent(
             addressesMentioned.forEach { tags.add(it.toQTagArray()) }
             eventsMentioned.forEach { tags.add(it.toQTagArray()) }
 
-            findHashtags(msg).forEach {
-                val lowercaseTag = it.lowercase()
-                tags.add(arrayOf("t", it))
-                if (it != lowercaseTag) {
-                    tags.add(arrayOf("t", it.lowercase()))
-                }
-            }
-
-            findURLs(msg).forEach { tags.add(arrayOf("r", it)) }
+            tags.addAll(buildHashtagTags(findHashtags(msg)))
+            tags.addAll(buildUrlRefs(findURLs(msg)))
 
             emojis?.forEach { tags.add(it.toTagArray()) }
 

quartz/src/main/java/com/vitorpamplona/quartz/nip34Git/GitReplyEvent.kt

@@ -27,9 +27,11 @@ import com.vitorpamplona.quartz.nip01Core.core.Event
 import com.vitorpamplona.quartz.nip01Core.signers.NostrSigner
 import com.vitorpamplona.quartz.nip01Core.tags.addressables.ATag
 import com.vitorpamplona.quartz.nip01Core.tags.geohash.geohashMipMap
+import com.vitorpamplona.quartz.nip01Core.tags.hashtags.buildHashtagTags
 import com.vitorpamplona.quartz.nip10Notes.BaseTextNoteEvent
-import com.vitorpamplona.quartz.nip10Notes.findHashtags
-import com.vitorpamplona.quartz.nip10Notes.findURLs
+import com.vitorpamplona.quartz.nip10Notes.content.buildUrlRefs
+import com.vitorpamplona.quartz.nip10Notes.content.findHashtags
+import com.vitorpamplona.quartz.nip10Notes.content.findURLs
 import com.vitorpamplona.quartz.nip10Notes.positionalMarkedTags
 import com.vitorpamplona.quartz.nip19Bech32.parse
 import com.vitorpamplona.quartz.nip30CustomEmoji.EmojiUrl
@@ -93,7 +95,6 @@ class GitReplyEvent(
             replyTos: List<String>? = null,
             mentions: List<String>? = null,
             addresses: List<ATag>? = null,
-            extraTags: List<String>? = null,
             zapReceiver: List<ZapSplitSetup>? = null,
             markAsSensitive: Boolean = false,
             zapRaiserAmount: Long? = null,
@@ -146,15 +147,11 @@ class GitReplyEvent(
                         ),
                     )
                 }
-            findHashtags(msg).forEach {
-                tags.add(arrayOf("t", it))
-                tags.add(arrayOf("t", it.lowercase()))
-            }
-            extraTags?.forEach { tags.add(arrayOf("t", it)) }
+            tags.addAll(buildHashtagTags(findHashtags(msg)))
+            tags.addAll(buildUrlRefs(findURLs(msg)))
             zapReceiver?.forEach {
                 tags.add(arrayOf("zap", it.lnAddressOrPubKeyHex, it.relay ?: "", it.weight.toString()))
             }
-            findURLs(msg).forEach { tags.add(arrayOf("r", it)) }
             if (markAsSensitive) {
                 tags.add(arrayOf("content-warning", ""))
             }

quartz/src/main/java/com/vitorpamplona/quartz/nip35Torrents/TorrentCommentEvent.kt

@@ -27,9 +27,11 @@ import com.vitorpamplona.quartz.nip01Core.core.Event
 import com.vitorpamplona.quartz.nip01Core.signers.NostrSigner
 import com.vitorpamplona.quartz.nip01Core.tags.addressables.ATag
 import com.vitorpamplona.quartz.nip01Core.tags.geohash.geohashMipMap
+import com.vitorpamplona.quartz.nip01Core.tags.hashtags.buildHashtagTags
 import com.vitorpamplona.quartz.nip10Notes.BaseTextNoteEvent
-import com.vitorpamplona.quartz.nip10Notes.findHashtags
-import com.vitorpamplona.quartz.nip10Notes.findURLs
+import com.vitorpamplona.quartz.nip10Notes.content.buildUrlRefs
+import com.vitorpamplona.quartz.nip10Notes.content.findHashtags
+import com.vitorpamplona.quartz.nip10Notes.content.findURLs
 import com.vitorpamplona.quartz.nip10Notes.positionalMarkedTags
 import com.vitorpamplona.quartz.nip30CustomEmoji.EmojiUrl
 import com.vitorpamplona.quartz.nip57Zaps.ZapSplitSetup
@@ -62,7 +64,6 @@ class TorrentCommentEvent(
             replyTos: List<String>? = null,
             mentions: List<String>? = null,
             addresses: List<ATag>? = null,
-            extraTags: List<String>? = null,
             zapReceiver: List<ZapSplitSetup>? = null,
             signer: NostrSigner,
             createdAt: Long = TimeUtils.now(),
@@ -116,18 +117,13 @@ class TorrentCommentEvent(
                         ),
                     )
                 }
-            findHashtags(message).forEach {
-                val lowercaseTag = it.lowercase()
-                tags.add(arrayOf("t", it))
-                if (it != lowercaseTag) {
-                    tags.add(arrayOf("t", it.lowercase()))
-                }
-            }
-            extraTags?.forEach { tags.add(arrayOf("t", it)) }
+            tags.addAll(buildHashtagTags(findHashtags(message)))
+            tags.addAll(buildUrlRefs(findURLs(message)))
+
             zapReceiver?.forEach {
                 tags.add(arrayOf("zap", it.lnAddressOrPubKeyHex, it.relay ?: "", it.weight.toString()))
             }
-            findURLs(message).forEach { tags.add(arrayOf("r", it)) }
+
             if (markAsSensitive) {
                 tags.add(arrayOf("content-warning", ""))
             }

quartz/src/main/java/com/vitorpamplona/quartz/nip68Picture/PictureEvent.kt

@@ -26,10 +26,12 @@ import com.vitorpamplona.quartz.nip01Core.core.Event
 import com.vitorpamplona.quartz.nip01Core.signers.NostrSigner
 import com.vitorpamplona.quartz.nip01Core.tags.addressables.ATag
 import com.vitorpamplona.quartz.nip01Core.tags.geohash.geohashMipMap
+import com.vitorpamplona.quartz.nip01Core.tags.hashtags.buildHashtagTags
 import com.vitorpamplona.quartz.nip10Notes.ETag
 import com.vitorpamplona.quartz.nip10Notes.PTag
-import com.vitorpamplona.quartz.nip10Notes.findHashtags
-import com.vitorpamplona.quartz.nip10Notes.findURLs
+import com.vitorpamplona.quartz.nip10Notes.content.buildUrlRefs
+import com.vitorpamplona.quartz.nip10Notes.content.findHashtags
+import com.vitorpamplona.quartz.nip10Notes.content.findURLs
 import com.vitorpamplona.quartz.nip22Comments.RootScope
 import com.vitorpamplona.quartz.nip57Zaps.ZapSplitSetup
 import com.vitorpamplona.quartz.nip92IMeta.Nip92MediaAttachments.Companion.IMETA
@@ -182,15 +184,8 @@ class PictureEvent(
             eventsMentioned.forEach { tags.add(it.toQTagArray()) }
 
             if (msg != null) {
-                findHashtags(msg).forEach {
-                    val lowercaseTag = it.lowercase()
-                    tags.add(arrayOf("t", it))
-                    if (it != lowercaseTag) {
-                        tags.add(arrayOf("t", it.lowercase()))
-                    }
-                }
-
-                findURLs(msg).forEach { tags.add(arrayOf("r", it)) }
+                tags.addAll(buildHashtagTags(findHashtags(msg)))
+                tags.addAll(buildUrlRefs(findURLs(msg)))
             }
 
             zapReceiver?.forEach {

quartz/src/main/java/com/vitorpamplona/quartz/nip99Classifieds/ClassifiedsEvent.kt

@@ -26,8 +26,9 @@ import com.vitorpamplona.quartz.nip01Core.core.BaseAddressableEvent
 import com.vitorpamplona.quartz.nip01Core.signers.NostrSigner
 import com.vitorpamplona.quartz.nip01Core.tags.addressables.ATag
 import com.vitorpamplona.quartz.nip01Core.tags.geohash.geohashMipMap
-import com.vitorpamplona.quartz.nip10Notes.findHashtags
-import com.vitorpamplona.quartz.nip10Notes.findURLs
+import com.vitorpamplona.quartz.nip01Core.tags.hashtags.buildHashtagTags
+import com.vitorpamplona.quartz.nip10Notes.content.findHashtags
+import com.vitorpamplona.quartz.nip10Notes.content.findURLs
 import com.vitorpamplona.quartz.nip30CustomEmoji.EmojiUrl
 import com.vitorpamplona.quartz.nip57Zaps.ZapSplitSetup
 import com.vitorpamplona.quartz.nip92IMeta.IMetaTag
@@ -169,11 +170,7 @@ class ClassifiedsEvent(
             location?.let { tags.add(arrayOf("location", it)) }
             publishedAt?.let { tags.add(arrayOf("publishedAt", it.toString())) }
             condition?.let { tags.add(arrayOf("condition", it.value)) }
-
-            findHashtags(message).forEach {
-                tags.add(arrayOf("t", it))
-                tags.add(arrayOf("t", it.lowercase()))
-            }
+            tags.addAll(buildHashtagTags(findHashtags(message)))
             zapReceiver?.forEach {
                 tags.add(arrayOf("zap", it.lnAddressOrPubKeyHex, it.relay ?: "", it.weight.toString()))
             }