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Adds support for NIP-22 exclusive geo posts

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This commit is contained in:
Vitor Pamplona
2024-11-18 15:38:57 -05:00
parent 3a566dad6b
commit 61510ae7e3
31 changed files with 813 additions and 68 deletions
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quartz/src/main/java/com/vitorpamplona/quartz/encoders/ATag.kt
+16 -1
View File
@@ -24,14 +24,25 @@ import android.util.Log
import androidx.compose.runtime.Immutable
import com.vitorpamplona.quartz.utils.bytesUsedInMemory
import com.vitorpamplona.quartz.utils.pointerSizeInBytes
import com.vitorpamplona.quartz.utils.removeTrailingNullsAndEmptyOthers
@Immutable
data class ATag(
val kind: Int,
val pubKeyHex: String,
val dTag: String,
val relay: String?,
) {
var relay: String? = null
constructor(
kind: Int,
pubKeyHex: String,
dTag: String,
relayHint: String?,
) : this(kind, pubKeyHex, dTag) {
this.relay = relayHint
}
fun countMemory(): Long =
5 * pointerSizeInBytes + // 7 fields, 4 bytes each reference (32bit)
8L + // kind
@@ -41,6 +52,10 @@ data class ATag(
fun toTag() = assembleATag(kind, pubKeyHex, dTag)
fun toATagArray() = removeTrailingNullsAndEmptyOthers("a", toTag(), relay)
fun toQTagArray() = removeTrailingNullsAndEmptyOthers("q", toTag(), relay)
fun toNAddr(): String =
TlvBuilder()
.apply {
quartz/src/main/java/com/vitorpamplona/quartz/encoders/ETag.kt
+70
View File
@@ -0,0 +1,70 @@
/**
* 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.encoders
import android.util.Log
import androidx.compose.runtime.Immutable
import com.vitorpamplona.quartz.utils.bytesUsedInMemory
import com.vitorpamplona.quartz.utils.pointerSizeInBytes
import com.vitorpamplona.quartz.utils.removeTrailingNullsAndEmptyOthers
@Immutable
data class ETag(
val eventId: HexKey,
) {
var relay: String? = null
var authorPubKeyHex: HexKey? = null
constructor(eventId: HexKey, relayHint: String? = null, authorPubKeyHex: HexKey? = null) : this(eventId) {
this.relay = relayHint
this.authorPubKeyHex = authorPubKeyHex
}
fun countMemory(): Long =
2 * pointerSizeInBytes + // 2 fields, 4 bytes each reference (32bit)
eventId.bytesUsedInMemory() +
(relay?.bytesUsedInMemory() ?: 0)
fun toNEvent(): String = Nip19Bech32.createNEvent(eventId, authorPubKeyHex, null, relay)
fun toNote(): String = Nip19Bech32.createNote(eventId)
fun toETagArray() = removeTrailingNullsAndEmptyOthers("e", eventId, relay, authorPubKeyHex)
fun toQTagArray() = removeTrailingNullsAndEmptyOthers("q", eventId, relay, authorPubKeyHex)
companion object {
fun parseNIP19(nevent: String): ETag? {
try {
val parsed = Nip19Bech32.uriToRoute(nevent)?.entity
return when (parsed) {
is Nip19Bech32.Note -> ETag(parsed.hex)
is Nip19Bech32.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/encoders/EventHint.kt
+52
View File
@@ -0,0 +1,52 @@
/**
* 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.encoders
import androidx.compose.runtime.Immutable
import com.vitorpamplona.quartz.events.Event
import com.vitorpamplona.quartz.utils.bytesUsedInMemory
import com.vitorpamplona.quartz.utils.pointerSizeInBytes
@Immutable
data class EventHint<T : Event>(
val event: T,
) {
var relay: String? = null
constructor(event: T, relayHint: String? = null) : this(event) {
this.relay = relayHint
}
fun countMemory(): Long =
2 * pointerSizeInBytes + // 2 fields, 4 bytes each reference (32bit)
event.countMemory() +
(relay?.bytesUsedInMemory() ?: 0)
fun toNEvent(): String = Nip19Bech32.createNEvent(event.id, event.pubKey, event.kind, relay)
fun toNPub(): String = Nip19Bech32.createNPub(event.id)
fun toTagArray(tag: String) = listOfNotNull(tag, event.id, relay, event.pubKey).toTypedArray()
fun toETagArray() = toTagArray("e")
fun toQTagArray() = toTagArray("q")
}
quartz/src/main/java/com/vitorpamplona/quartz/encoders/Nip19Bech32.kt
+4
View File
@@ -270,6 +270,10 @@ object Nip19Bech32 {
}.build()
.toNEvent()
fun createNote(eventId: HexKey): String = eventId.hexToByteArray().toNote()
fun createNPub(authorPubKeyHex: HexKey): String = authorPubKeyHex.hexToByteArray().toNpub()
fun createNProfile(
authorPubKeyHex: String,
relay: List<String>,
quartz/src/main/java/com/vitorpamplona/quartz/encoders/PTag.kt
+66
View File
@@ -0,0 +1,66 @@
/**
* 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.encoders
import android.util.Log
import androidx.compose.runtime.Immutable
import com.vitorpamplona.quartz.utils.bytesUsedInMemory
import com.vitorpamplona.quartz.utils.pointerSizeInBytes
import com.vitorpamplona.quartz.utils.removeTrailingNullsAndEmptyOthers
@Immutable
data class PTag(
val pubKeyHex: HexKey,
) {
var relay: String? = null
constructor(pubKeyHex: HexKey, relayHint: String?) : this(pubKeyHex) {
this.relay = relayHint?.ifBlank { null }
}
fun countMemory(): Long =
2 * pointerSizeInBytes + // 2 fields, 4 bytes each reference (32bit)
pubKeyHex.bytesUsedInMemory() +
(relay?.bytesUsedInMemory() ?: 0)
fun toNProfile(): String = Nip19Bech32.createNProfile(pubKeyHex, relay?.let { listOf(it) } ?: emptyList())
fun toNPub(): String = Nip19Bech32.createNPub(pubKeyHex)
fun toPTagArray() = removeTrailingNullsAndEmptyOthers("p", pubKeyHex, relay)
companion object {
fun parseNAddr(nprofile: String): PTag? {
try {
val parsed = Nip19Bech32.uriToRoute(nprofile)?.entity
return when (parsed) {
is Nip19Bech32.NPub -> PTag(parsed.hex)
is Nip19Bech32.NProfile -> PTag(parsed.hex, 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/events/BaseTextNoteEvent.kt
+3 -3
View File
@@ -71,7 +71,7 @@ open class BaseTextNoteEvent(
}
}
fun replyingTo(): HexKey? {
open fun replyingTo(): HexKey? {
val oldStylePositional = tags.lastOrNull { it.size > 1 && it.size <= 3 && it[0] == "e" }?.get(1)
val newStyleReply = tags.lastOrNull { it.size > 3 && it[0] == "e" && it[3] == "reply" }?.get(1)
val newStyleRoot = tags.lastOrNull { it.size > 3 && it[0] == "e" && it[3] == "root" }?.get(1)
@@ -79,7 +79,7 @@ open class BaseTextNoteEvent(
return newStyleReply ?: newStyleRoot ?: oldStylePositional
}
fun replyingToAddress(): ATag? {
open fun replyingToAddress(): ATag? {
val oldStylePositional = tags.lastOrNull { it.size > 1 && it.size <= 3 && it[0] == "a" }?.let { ATag.parseAtag(it[1], it[2]) }
val newStyleReply = tags.lastOrNull { it.size > 3 && it[0] == "a" && it[3] == "reply" }?.let { ATag.parseAtag(it[1], it[2]) }
val newStyleRoot = tags.lastOrNull { it.size > 3 && it[0] == "a" && it[3] == "root" }?.let { ATag.parseAtag(it[1], it[2]) }
@@ -87,7 +87,7 @@ open class BaseTextNoteEvent(
return newStyleReply ?: newStyleRoot ?: oldStylePositional
}
fun replyingToAddressOrEvent(): String? {
open fun replyingToAddressOrEvent(): String? {
val oldStylePositional = tags.lastOrNull { it.size > 1 && it.size <= 3 && (it[0] == "e" || it[0] == "a") }?.get(1)
val newStyleReply = tags.lastOrNull { it.size > 3 && (it[0] == "e" || it[0] == "a") && it[3] == "reply" }?.get(1)
val newStyleRoot = tags.lastOrNull { it.size > 3 && (it[0] == "e" || it[0] == "a") && it[3] == "root" }?.get(1)
quartz/src/main/java/com/vitorpamplona/quartz/events/CommentEvent.kt
+192
View File
@@ -0,0 +1,192 @@
/**
* 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.events
import androidx.compose.runtime.Immutable
import com.vitorpamplona.quartz.encoders.ATag
import com.vitorpamplona.quartz.encoders.ETag
import com.vitorpamplona.quartz.encoders.EventHint
import com.vitorpamplona.quartz.encoders.HexKey
import com.vitorpamplona.quartz.encoders.Nip92MediaAttachments
import com.vitorpamplona.quartz.encoders.PTag
import com.vitorpamplona.quartz.signers.NostrSigner
import com.vitorpamplona.quartz.utils.TimeUtils
import com.vitorpamplona.quartz.utils.removeTrailingNullsAndEmptyOthers
@Immutable
class CommentEvent(
id: HexKey,
pubKey: HexKey,
createdAt: Long,
tags: Array<Array<String>>,
content: String,
sig: HexKey,
) : BaseTextNoteEvent(id, pubKey, createdAt, KIND, tags, content, sig) {
fun root() = tags.firstOrNull { it.size > 3 && it[3] == "root" }?.get(1)
fun getRootScopes() = tags.filter { it.size > 1 && it[0] == "I" || it[0] == "A" || it[0] == "E" }
fun getRootKinds() = tags.filter { it.size > 1 && it[0] == "K" }
fun getDirectReplies() = tags.filter { it.size > 1 && it[0] == "i" || it[0] == "a" || it[0] == "e" }
fun getDirectKinds() = tags.filter { it.size > 1 && it[0] == "k" }
fun isGeohashTag(tag: Array<String>) = tag.size > 1 && (tag[0] == "i" || tag[0] == "I") && tag[1].startsWith("geo:")
private fun getGeoHashList() = tags.filter { isGeohashTag(it) }
override fun hasGeohashes() = tags.any { isGeohashTag(it) }
override fun geohashes() = getGeoHashList().map { it[1].drop(4).lowercase() }
override fun getGeoHash(): String? = geohashes().maxByOrNull { it.length }
override fun isTaggedGeoHash(hashtag: String) = tags.any { isGeohashTag(it) && it[1].endsWith(hashtag, true) }
override fun isTaggedGeoHashes(hashtags: Set<String>) = geohashes().any { it in hashtags }
override fun replyTos(): List<HexKey> = tags.filter { it.size > 1 && it[0] == "e" }.map { it[1] } + tags.filter { it.size > 1 && it[0] == "E" }.map { it[1] }
override fun replyingTo(): HexKey? =
tags.lastOrNull { it.size > 1 && it[0] == "e" }?.get(1)
?: tags.lastOrNull { it.size > 1 && it[0] == "E" }?.get(1)
override fun replyingToAddress(): ATag? =
tags.lastOrNull { it.size > 1 && it[0] == "a" }?.let { ATag.parseAtag(it[1], it.getOrNull(2)) }
?: tags.lastOrNull { it.size > 1 && it[0] == "A" }?.let { ATag.parseAtag(it[1], it.getOrNull(2)) }
override fun replyingToAddressOrEvent(): HexKey? = replyingToAddress()?.toTag() ?: replyingTo()
companion object {
const val KIND = 1111
fun rootGeohashMipMap(geohash: String): Array<Array<String>> =
geohash.indices
.asSequence()
.map { arrayOf("I", "geo:" + geohash.substring(0, it + 1)) }
.toList()
.reversed()
.toTypedArray()
fun replyComment(
msg: String,
replyingTo: EventHint<CommentEvent>,
usersMentioned: Set<PTag> = emptySet(),
addressesMentioned: Set<ATag> = emptySet(),
eventsMentioned: Set<ETag> = emptySet(),
nip94attachments: List<FileHeaderEvent>? = null,
geohash: String? = null,
zapReceiver: List<ZapSplitSetup>? = null,
markAsSensitive: Boolean = false,
zapRaiserAmount: Long? = null,
isDraft: Boolean,
signer: NostrSigner,
createdAt: Long = TimeUtils.now(),
onReady: (CommentEvent) -> Unit,
) {
val tags = mutableListOf<Array<String>>()
tags.addAll(replyingTo.event.getRootScopes())
tags.addAll(replyingTo.event.getRootKinds())
tags.add(removeTrailingNullsAndEmptyOthers("e", replyingTo.event.id, replyingTo.relay, replyingTo.event.pubKey))
tags.add(arrayOf("k", "${replyingTo.event.kind}"))
create(msg, tags, usersMentioned, addressesMentioned, eventsMentioned, nip94attachments, geohash, zapReceiver, markAsSensitive, zapRaiserAmount, isDraft, signer, createdAt, onReady)
}
fun createGeoComment(
msg: String,
geohash: String? = null,
usersMentioned: Set<PTag> = emptySet(),
addressesMentioned: Set<ATag> = emptySet(),
eventsMentioned: Set<ETag> = emptySet(),
nip94attachments: List<FileHeaderEvent>? = null,
zapReceiver: List<ZapSplitSetup>? = null,
markAsSensitive: Boolean = false,
zapRaiserAmount: Long? = null,
isDraft: Boolean,
signer: NostrSigner,
createdAt: Long = TimeUtils.now(),
onReady: (CommentEvent) -> Unit,
) {
val tags = mutableListOf<Array<String>>()
geohash?.let { tags.addAll(rootGeohashMipMap(it)) }
tags.add(arrayOf("K", "geo"))
create(msg, tags, usersMentioned, addressesMentioned, eventsMentioned, nip94attachments, null, zapReceiver, markAsSensitive, zapRaiserAmount, isDraft, signer, createdAt, onReady)
}
private fun create(
msg: String,
tags: MutableList<Array<String>>,
usersMentioned: Set<PTag> = emptySet(),
addressesMentioned: Set<ATag> = emptySet(),
eventsMentioned: Set<ETag> = emptySet(),
nip94attachments: List<FileHeaderEvent>? = null,
geohash: String? = null,
zapReceiver: List<ZapSplitSetup>? = null,
markAsSensitive: Boolean = false,
zapRaiserAmount: Long? = null,
isDraft: Boolean,
signer: NostrSigner,
createdAt: Long = TimeUtils.now(),
onReady: (CommentEvent) -> Unit,
) {
usersMentioned.forEach { tags.add(it.toPTagArray()) }
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)) }
zapReceiver?.forEach {
tags.add(arrayOf("zap", it.lnAddressOrPubKeyHex, it.relay ?: "", it.weight.toString()))
}
if (markAsSensitive) {
tags.add(arrayOf("content-warning", ""))
}
zapRaiserAmount?.let { tags.add(arrayOf("zapraiser", "$it")) }
geohash?.let { tags.addAll(geohashMipMap(it)) }
nip94attachments?.let {
it.forEach {
Nip92MediaAttachments().convertFromFileHeader(it)?.let {
tags.add(it)
}
}
}
if (isDraft) {
signer.assembleRumor(createdAt, KIND, tags.toTypedArray(), msg, onReady)
} else {
signer.sign(createdAt, KIND, tags.toTypedArray(), msg, onReady)
}
}
}
}
quartz/src/main/java/com/vitorpamplona/quartz/events/ContactListEvent.kt
+3 -19
View File
@@ -141,21 +141,11 @@ class ContactListEvent(
val tags =
listOf(arrayOf("alt", ALT)) +
followUsers.map {
if (it.relayUri != null) {
arrayOf("p", it.pubKeyHex, it.relayUri)
} else {
arrayOf("p", it.pubKeyHex)
}
listOfNotNull("a", it.pubKeyHex, it.relayUri).toTypedArray()
} +
followTags.map { arrayOf("t", it) } +
followEvents.map { arrayOf("e", it) } +
followCommunities.map {
if (it.relay != null) {
arrayOf("a", it.toTag(), it.relay)
} else {
arrayOf("a", it.toTag())
}
} +
followCommunities.map { it.toATagArray() } +
followGeohashes.map { arrayOf("g", it) }
return signer.sign(createdAt, KIND, tags.toTypedArray(), content)
@@ -189,13 +179,7 @@ class ContactListEvent(
} +
followTags.map { arrayOf("t", it) } +
followEvents.map { arrayOf("e", it) } +
followCommunities.map {
if (it.relay != null) {
arrayOf("a", it.toTag(), it.relay)
} else {
arrayOf("a", it.toTag())
}
} +
followCommunities.map { it.toATagArray() } +
followGeohashes.map { arrayOf("g", it) }
return create(
quartz/src/main/java/com/vitorpamplona/quartz/events/DraftEvent.kt
+12
View File
@@ -188,6 +188,18 @@ class DraftEvent(
create(dTag, originalNote, tagsWithMarkers, signer, createdAt, onReady)
}
fun create(
dTag: String,
originalNote: CommentEvent,
signer: NostrSigner,
createdAt: Long = TimeUtils.now(),
onReady: (DraftEvent) -> Unit,
) {
val tagsWithMarkers = originalNote.getRootScopes() + originalNote.getDirectReplies()
create(dTag, originalNote, tagsWithMarkers, signer, createdAt, onReady)
}
fun create(
dTag: String,
originalNote: TextNoteEvent,
quartz/src/main/java/com/vitorpamplona/quartz/events/EventFactory.kt
+1
View File
@@ -75,6 +75,7 @@ class EventFactory {
}
ChatMessageRelayListEvent.KIND -> ChatMessageRelayListEvent(id, pubKey, createdAt, tags, content, sig)
ClassifiedsEvent.KIND -> ClassifiedsEvent(id, pubKey, createdAt, tags, content, sig)
CommentEvent.KIND -> CommentEvent(id, pubKey, createdAt, tags, content, sig)
CommunityDefinitionEvent.KIND -> CommunityDefinitionEvent(id, pubKey, createdAt, tags, content, sig)
CommunityListEvent.KIND -> CommunityListEvent(id, pubKey, createdAt, tags, content, sig)
CommunityPostApprovalEvent.KIND -> CommunityPostApprovalEvent(id, pubKey, createdAt, tags, content, sig)
quartz/src/main/java/com/vitorpamplona/quartz/utils/ArrayUtils.kt
+31
View File
@@ -0,0 +1,31 @@
/**
* 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.utils
public fun removeTrailingNullsAndEmptyOthers(vararg elements: String?): Array<String> {
val lastNonNullIndex = elements.indexOfLast { it != null }
if (lastNonNullIndex < 0) return Array(0) { "" }
return Array(lastNonNullIndex + 1) { index ->
elements[index] ?: ""
}
}