Browse Source
Adapted from SpiritCroc's SchildNext implementation from
7eba87f02e
Fixes: https://github.com/element-hq/element-x-android/issues/1438
Signed-off-by: Tobias BΓΌttner <dev@spiritcroc.de>
Signed-off-by: Joe Groocock <me@frebib.net>
pull/3295/head
SpiritCroc
4 weeks ago
committed by
Joe Groocock
8 changed files with 106 additions and 1 deletions
@ -0,0 +1,44 @@ |
|||||||
|
/* |
||||||
|
* Copyright (c) 2024 New Vector Ltd |
||||||
|
* |
||||||
|
* Licensed under the Apache License, Version 2.0 (the "License"); |
||||||
|
* you may not use this file except in compliance with the License. |
||||||
|
* You may obtain a copy of the License at |
||||||
|
* |
||||||
|
* https://www.apache.org/licenses/LICENSE-2.0 |
||||||
|
* |
||||||
|
* Unless required by applicable law or agreed to in writing, software |
||||||
|
* distributed under the License is distributed on an "AS IS" BASIS, |
||||||
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
||||||
|
* See the License for the specific language governing permissions and |
||||||
|
* limitations under the License. |
||||||
|
*/ |
||||||
|
|
||||||
|
package io.element.android.features.messages.impl.utils |
||||||
|
|
||||||
|
import com.sigpwned.emoji4j.core.Grapheme.Type.EMOJI |
||||||
|
import com.sigpwned.emoji4j.core.Grapheme.Type.PICTOGRAPHIC |
||||||
|
import com.sigpwned.emoji4j.core.GraphemeMatchResult |
||||||
|
import com.sigpwned.emoji4j.core.GraphemeMatcher |
||||||
|
|
||||||
|
/** |
||||||
|
* Returns true if the string consists exclusively of "emoji or pictographic graphemes". |
||||||
|
*/ |
||||||
|
fun String.containsOnlyEmojis(): Boolean { |
||||||
|
if (isEmpty()) return false |
||||||
|
|
||||||
|
val matcher = GraphemeMatcher(this) |
||||||
|
var m: GraphemeMatchResult? = null |
||||||
|
var contiguous = true |
||||||
|
var previous = 0 |
||||||
|
while (contiguous && matcher.find()) { |
||||||
|
m = matcher.toMatchResult() |
||||||
|
// Many non-"emoji" characters are pictographics. We only want to identify this specific range |
||||||
|
// https://en.wikipedia.org/wiki/Miscellaneous_Symbols_and_Pictographs |
||||||
|
val isEmoji = m!!.grapheme().type == EMOJI || (m.grapheme().type == PICTOGRAPHIC && m.group() in "π".."πΊ") |
||||||
|
contiguous = isEmoji and (m.start() == previous) |
||||||
|
previous = m.end() |
||||||
|
} |
||||||
|
|
||||||
|
return contiguous and (m?.end() == length) |
||||||
|
} |
Loadingβ¦
Reference in new issue