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package org.jetbrains.dokka.jekyll
import org.jetbrains.dokka.CoreExtensions
import org.jetbrains.dokka.pages.*
import org.jetbrains.dokka.plugability.DokkaContext
import org.jetbrains.dokka.plugability.DokkaPlugin
import org.jetbrains.dokka.plugability.single
import org.jetbrains.dokka.renderers.DefaultRenderer
import org.jetbrains.dokka.renderers.OutputWriter
import org.jetbrains.dokka.resolvers.DefaultLocationProvider
import org.jetbrains.dokka.resolvers.LocationProvider
import org.jetbrains.dokka.resolvers.LocationProviderFactory
import java.lang.StringBuilder
class JekyllPlugin : DokkaPlugin() {
val renderer by extending {
CoreExtensions.renderer providing { JekyllRenderer(it.single(CoreExtensions.outputWriter), it) }
}
}
class JekyllRenderer(
outputWriter: OutputWriter,
context: DokkaContext
) : DefaultRenderer<StringBuilder>(outputWriter, context) {
override fun StringBuilder.buildHeader(level: Int, content: StringBuilder.() -> Unit) {
buildParagraph()
append("${"#".repeat(level)} ")
content()
buildNewLine()
}
override fun StringBuilder.buildLink(address: String, content: StringBuilder.() -> Unit) {
append("[")
content()
append("]($address)")
}
override fun StringBuilder.buildList(node: ContentList, pageContext: ContentPage) {
buildListLevel(node, pageContext)
buildParagraph()
}
private val indent = " ".repeat(4)
private fun StringBuilder.buildListItem(items: List<ContentNode>, pageContext: ContentPage, bullet: String = "*") {
items.forEach {
if(it is ContentList) {
val builder = StringBuilder()
builder.append(indent)
builder.buildListLevel(it, pageContext)
append(builder.toString().replace(Regex(" \n(?!$)"), " \n$indent"))
} else {
append("$bullet ")
it.build(this, pageContext)
buildNewLine()
}
}
}
private fun StringBuilder.buildListLevel(node: ContentList, pageContext: ContentPage) {
if(node.ordered) {
buildListItem(node.children, pageContext, "${node.start}.")
} else {
buildListItem(node.children, pageContext, "*")
}
}
override fun StringBuilder.buildNewLine() {
this.append(" \n")
}
fun StringBuilder.buildParagraph() {
this.append("\n\n")
}
override fun StringBuilder.buildResource(node: ContentEmbeddedResource, pageContext: ContentPage) {
this.append("Resource")
}
override fun StringBuilder.buildTable(node: ContentTable, pageContext: ContentPage) {
buildParagraph()
val size = node.children.firstOrNull()?.children?.size ?: 0
if(node.header.size > 0) {
node.header.forEach {
it.children.forEach {
append("| ")
it.build(this, pageContext)
}
append("|\n")
}
} else {
append("| ".repeat(size))
if(size > 0) append("|\n")
}
append("|---".repeat(size))
if(size > 0) append("|\n")
node.children.forEach {
it.children.forEach {
append("| ")
it.build(this, pageContext)
}
append("|\n")
}
buildParagraph()
}
override fun StringBuilder.buildText(textNode: ContentText) {
val decorators = decorators(textNode.style)
this.append(decorators)
this.append(textNode.text.replace(Regex("[<>]"), ""))
this.append(decorators.reversed())
}
override fun StringBuilder.buildNavigation(page: PageNode) {
locationProvider.ancestors(page).asReversed().forEach { node ->
append("/")
if (node.isNavigable) buildLink(node, page)
else append(node.name)
}
buildParagraph()
}
override fun buildPage(page: ContentPage, content: (StringBuilder, ContentPage) -> Unit): String {
val builder = StringBuilder()
builder.append("---\n")
builder.append("title: ${page.name} -\n")
builder.append("---\n")
content(builder, page)
return builder.toString()
}
override fun buildError(node: ContentNode) {
println("Error")
}
private fun decorators(styles: Set<Style>): String {
val decorators = StringBuilder()
styles.forEach {
when(it) {
TextStyle.Bold -> decorators.append("**")
TextStyle.Italic -> decorators.append("*")
TextStyle.Strong -> decorators.append("**")
TextStyle.Strikethrough -> decorators.append("~~")
else -> Unit
}
}
return decorators.toString()
}
private val PageNode.isNavigable: Boolean
get() = this !is RendererSpecificPage || strategy != RenderingStrategy.DoNothing
private fun StringBuilder.buildLink(to: PageNode, from: PageNode) =
buildLink(locationProvider.resolve(to, from)) {
append(to.name)
}
override fun renderPage(page: PageNode) {
val path by lazy { locationProvider.resolve(page, skipExtension = true) }
when (page) {
is ContentPage -> outputWriter.write(path, buildPage(page) { c, p -> buildPageContent(c, p) }, ".md")
is RendererSpecificPage -> when (val strategy = page.strategy) {
is RenderingStrategy.Copy -> outputWriter.writeResources(strategy.from, path)
is RenderingStrategy.Write -> outputWriter.write(path, strategy.text, "")
is RenderingStrategy.Callback -> outputWriter.write(path, strategy.instructions(this, page), ".md")
RenderingStrategy.DoNothing -> Unit
}
else -> throw AssertionError(
"Page ${page.name} cannot be rendered by renderer as it is not renderer specific nor contains content"
)
}
}
}
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