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package org.jetbrains.dokka.base.translators.documentables
import org.jetbrains.dokka.model.withDescendants
import org.jetbrains.dokka.pages.*
import org.jetbrains.kotlin.utils.addToStdlib.safeAs
fun briefFromContentNodes(description: List<ContentNode>): List<ContentNode> {
val firstSentenceRegex = """^((?:[^.?!]|[.!?](?!\s))*[.!?])""".toRegex()
//Description that is entirely based on html content. In html it is hard to define a brief so we render all of it
if(description.all { it.withDescendants().all { it is ContentGroup || it.safeAs<ContentText>()?.isHtml == true } }){
return description
}
var sentenceFound = false
fun lookthrough(node: ContentNode): ContentNode =
if (node is ContentText && !node.isHtml && firstSentenceRegex.containsMatchIn(node.text)) {
sentenceFound = true
node.copy(text = firstSentenceRegex.find(node.text)?.value.orEmpty())
} else if (node is ContentGroup) {
node.copy(children = node.children.mapNotNull {
if (!sentenceFound) lookthrough(it) else null
}, style = node.style - TextStyle.Paragraph)
} else {
node
}
return description.mapNotNull {
if (!sentenceFound) lookthrough(it) else null
}
}
private val ContentText.isHtml
get() = extra[HtmlContent] != null
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