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package org.jetbrains.dokka.resolvers
import org.jetbrains.dokka.CoreExtensions
import org.jetbrains.dokka.DokkaConfiguration
import org.jetbrains.dokka.utilities.htmlEscape
import org.jetbrains.dokka.links.DRI
import org.jetbrains.dokka.pages.*
import org.jetbrains.dokka.plugability.DokkaContext
import org.jetbrains.dokka.plugability.single
open class DefaultLocationProvider(
private val pageGraphRoot: ModulePageNode,
private val dokkaContext: DokkaContext
) : LocationProvider { // TODO: cache
private val extension = dokkaContext.single(CoreExtensions.fileExtension)
override fun resolve(node: PageNode, context: PageNode?): String = pathTo(node, context) + extension
override fun resolve(dri: DRI, platforms: List<PlatformData>, context: PageNode?): String =
findInPageGraph(dri, platforms)?.let { resolve(it, context) } ?:
// Not found in PageGraph, that means it's an external link
ExternalLocationProvider.getLocation(dri,
this.dokkaContext.configuration.passesConfigurations
.filter { passConfig ->
platforms.toSet().contains(PlatformData(passConfig.moduleName, passConfig.analysisPlatform, passConfig.targets))
} // TODO: change targets to something better?
.flatMap { it.externalDocumentationLinks }.distinct()
)
override fun resolveRoot(node: PageNode): String = "../${pathTo(pageGraphRoot, node).removeSuffix(
PAGE_WITH_CHILDREN_SUFFIX
)}"
private fun PageNode.parent() = pageGraphRoot.parentMap[this]
override fun ancestors(node: PageNode?): List<PageNode> = when (node) {
null -> emptyList()
else -> ancestors(node.parent()) + node
}
protected open fun findInPageGraph(dri: DRI, platforms: List<PlatformData>): PageNode? =
pageGraphRoot.dfs { it.dri == dri }
protected open fun pathTo(node: PageNode, context: PageNode?): String {
fun PageNode.pathName(): String =
if (this is PackagePageNode) name
else identifierToFilename(name)
fun getPath(pathNode: PageNode?, path: List<String> = mutableListOf()): List<String> = when (pathNode) {
null -> path
else -> getPath(pathNode.parent(), path + pathNode.pathName().ifEmpty { "root" })
}
val contextNode = if (context?.children?.isEmpty() == true) context.parent() else context
val nodePath = getPath(node).reversed()
val contextPath = getPath(contextNode).reversed()
val commonPathElements = nodePath.zip(contextPath).takeWhile { (a, b) -> a == b }.size
return (List(contextPath.size - commonPathElements) { ".." } + nodePath.drop(commonPathElements) +
if (node.children.isNotEmpty()) listOf(PAGE_WITH_CHILDREN_SUFFIX) else emptyList()).joinToString("/")
}
private companion object {
const val PAGE_WITH_CHILDREN_SUFFIX = "index"
}
}
fun DRI.toJavadocLocation(jdkVersion: Int): String { // TODO: classes without packages?
val packageLink = packageName?.replace(".", "/")
if (classNames == null) {
return "$packageLink/package-summary.html".htmlEscape()
}
val classLink = if (packageLink == null) "$classNames.html" else "$packageLink/$classNames.html"
if (callable == null) {
return classLink.htmlEscape()
}
val callableLink = "$classLink#${callable.name}" + when {
jdkVersion < 8 -> "(${callable.params.joinToString(", ")})"
jdkVersion < 10 -> "-${callable.params.joinToString("-")}-"
else -> "(${callable.params.joinToString(",")})"
}
return callableLink.htmlEscape()
}
fun DRI.toDokkaLocation(extension: String): String { // TODO: classes without packages?
if (classNames == null) {
return "$packageName/index$extension"
}
val classLink = if (packageName == null) {
""
} else {
"$packageName/"
} + classNames.split('.').joinToString("/", transform = ::identifierToFilename)
if (callable == null) {
return "$classLink/index$extension"
}
return "$classLink/${identifierToFilename(callable.name)}$extension"
}
private val reservedFilenames = setOf("index", "con", "aux", "lst", "prn", "nul", "eof", "inp", "out")
private fun identifierToFilename(name: String): String {
if (name.isEmpty()) return "--root--"
val escaped = name.replace('<', '-').replace('>', '-')
val lowercase = escaped.replace("[A-Z]".toRegex()) { matchResult -> "-" + matchResult.value.toLowerCase() }
return if (lowercase in reservedFilenames) "--$lowercase--" else lowercase
}
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