correctly render Markdown in link text (KT-11791)

4 files changed, 51 insertions, 9 deletions

diff --git a/core/src/main/kotlin/Kotlin/ContentBuilder.kt b/core/src/main/kotlin/Kotlin/ContentBuilder.kt
index 496c886b..9e89a20a 100644
--- a/core/src/main/kotlin/Kotlin/ContentBuilder.kt
+++ b/core/src/main/kotlin/Kotlin/ContentBuilder.kt
@@ -48,16 +48,16 @@ fun buildContentTo(tree: MarkdownNode, target: ContentBlock, linkResolver: (Stri
             MarkdownElementTypes.PARAGRAPH -> appendNodeWithChildren(ContentParagraph())
 
             MarkdownElementTypes.INLINE_LINK -> {
-                val labelText = node.child(MarkdownElementTypes.LINK_TEXT)?.getLabelText()
+                val linkTextNode = node.child(MarkdownElementTypes.LINK_TEXT)
                 val destination = node.child(MarkdownElementTypes.LINK_DESTINATION)
-                if (labelText != null) {
+                if (linkTextNode != null) {
                     if (destination != null) {
                         val link = ContentExternalLink(destination.text)
-                        link.append(ContentText(labelText))
+                        renderLinkTextTo(linkTextNode, link, linkResolver)
                         parent.append(link)
                     } else {
-                        val link = ContentExternalLink(labelText)
-                        link.append(ContentText(labelText))
+                        val link = ContentExternalLink(linkTextNode.getLabelText())
+                        renderLinkTextTo(linkTextNode, link, linkResolver)
                         parent.append(link)
                     }
                 }
@@ -67,8 +67,13 @@ fun buildContentTo(tree: MarkdownNode, target: ContentBlock, linkResolver: (Stri
                 val labelText = node.child(MarkdownElementTypes.LINK_LABEL)?.getLabelText()
                 if (labelText != null) {
                     val link = linkResolver(labelText)
-                    val linkText = node.child(MarkdownElementTypes.LINK_TEXT)?.getLabelText()
-                    link.append(ContentText(linkText ?: labelText))
+                    val linkText = node.child(MarkdownElementTypes.LINK_TEXT)
+                    if (linkText != null) {
+                        renderLinkTextTo(linkText, link, linkResolver)
+                    }
+                    else {
+                        link.append(ContentText(labelText))
+                    }
                     parent.append(link)
                 }
             }
@@ -104,7 +109,8 @@ fun buildContentTo(tree: MarkdownNode, target: ContentBlock, linkResolver: (Stri
             }
 
             MarkdownTokenTypes.EMPH -> {
-                if (node.parent?.type != MarkdownElementTypes.EMPH) {
+                val parentNodeType = node.parent?.type
+                if (parentNodeType != MarkdownElementTypes.EMPH && parentNodeType != MarkdownElementTypes.STRONG) {
                     parent.append(ContentText(node.text))
                 }
             }
@@ -138,3 +144,9 @@ fun buildInlineContentTo(tree: MarkdownNode, target: ContentBlock, linkResolver:
     }
 }
 
+fun renderLinkTextTo(tree: MarkdownNode, target: ContentBlock, linkResolver: (String) -> ContentBlock) {
+    val linkTextNodes = tree.children.drop(1).dropLast(1)
+    linkTextNodes.forEach {
+        buildContentTo(it, target, linkResolver)
+    }
+}
diff --git a/core/src/test/kotlin/format/HtmlFormatTest.kt b/core/src/test/kotlin/format/HtmlFormatTest.kt
index 8045d38c..0fc56361 100644
--- a/core/src/test/kotlin/format/HtmlFormatTest.kt
+++ b/core/src/test/kotlin/format/HtmlFormatTest.kt
@@ -8,7 +8,7 @@ import org.jetbrains.kotlin.config.KotlinSourceRoot
 import org.junit.Test
 import java.io.File
 
-public class HtmlFormatTest {
+class HtmlFormatTest {
     private val htmlService = HtmlFormatService(InMemoryLocationService, KotlinLanguageService(), HtmlTemplateService.default())
 
     @Test fun classWithCompanionObject() {
@@ -159,5 +159,16 @@ public class HtmlFormatTest {
             htmlService.appendNodes(tempLocation, output, model.members.single().members)
         }
     }
+
+    @Test fun markdownInLinks() {
+        verifyHtmlNode("markdownInLinks")
+    }
+
+    private fun verifyHtmlNode(fileName: String, withKotlinRuntime: Boolean = false) {
+        verifyOutput("testdata/format/$fileName.kt", ".html", withKotlinRuntime = withKotlinRuntime) { model, output ->
+            htmlService.appendNodes(tempLocation, output, model.members.single().members)
+        }
+    }
+
 }
 
diff --git a/core/testdata/format/markdownInLinks.html b/core/testdata/format/markdownInLinks.html
new file mode 100644
index 00000000..38158eac
--- /dev/null
+++ b/core/testdata/format/markdownInLinks.html
@@ -0,0 +1,15 @@
+<HTML>
+<HEAD>
+<title>foo - test</title>
+</HEAD>
+<BODY>
+<a href="test/index">test</a>&nbsp;/&nbsp;<a href="test/foo">foo</a><br/>
+<br/>
+<h1>foo</h1>
+<a name="$foo()"></a>
+<code><span class="keyword">fun </span><span class="identifier">foo</span><span class="symbol">(</span><span class="symbol">)</span><span class="symbol">: </span><span class="identifier">Unit</span></code><br/>
+<p><a href="http://www.ibm.com">a<strong>b</strong><strong>d</strong>kas</a></p>
+<br/>
+<br/>
+</BODY>
+</HTML>
diff --git a/core/testdata/format/markdownInLinks.kt b/core/testdata/format/markdownInLinks.kt
new file mode 100644
index 00000000..67b6311f
--- /dev/null
+++ b/core/testdata/format/markdownInLinks.kt
@@ -0,0 +1,4 @@
+/**
+ * [a**b**__d__ kas ](http://www.ibm.com)
+ */
+fun foo() {}