Fix preserving spaces in Javadoc comments (#1923)

Fixes #1895

3 files changed, 54 insertions, 4 deletions

diff --git a/plugins/base/src/main/kotlin/translators/psi/DefaultPsiToDocumentableTranslator.kt b/plugins/base/src/main/kotlin/translators/psi/DefaultPsiToDocumentableTranslator.kt
index cd2bbfc6..f728c8a7 100644
--- a/plugins/base/src/main/kotlin/translators/psi/DefaultPsiToDocumentableTranslator.kt
+++ b/plugins/base/src/main/kotlin/translators/psi/DefaultPsiToDocumentableTranslator.kt
@@ -264,7 +264,7 @@ class DefaultPsiToDocumentableTranslator(
                         name.orEmpty(),
                         fields.filterIsInstance<PsiEnumConstant>().map { entry ->
                             DEnumEntry(
-                                dri.withClass("${entry.name}"),
+                                dri.withClass(entry.name),
                                 entry.name,
                                 javadocParser.parseDocumentation(entry).toSourceSetDependent(),
                                 null,
diff --git a/plugins/base/src/main/kotlin/translators/psi/parsers/JavadocParser.kt b/plugins/base/src/main/kotlin/translators/psi/parsers/JavadocParser.kt
index a02bceac..dc93568f 100644
--- a/plugins/base/src/main/kotlin/translators/psi/parsers/JavadocParser.kt
+++ b/plugins/base/src/main/kotlin/translators/psi/parsers/JavadocParser.kt
@@ -213,9 +213,9 @@ class JavadocParser(
                         javadoc doesn't care about it.
                          */
                         text.let {
-                            if ((prevSibling as? PsiDocToken)?.isLeadingAsterisk() == true && text != " " && state.previousElement !is PsiInlineDocTag) it?.trimStart() else it
+                            if ((prevSibling as? PsiDocToken)?.isLeadingAsterisk() == true && text.isNotBlank() && state.previousElement !is PsiInlineDocTag) it?.trimStart() else it
                         }?.let {
-                            if ((nextSibling as? PsiDocToken)?.isLeadingAsterisk() == true && text != " ") it.trimEnd() else it
+                            if ((nextSibling as? PsiDocToken)?.isLeadingAsterisk() == true && text.isNotBlank()) it.trimEnd() else it
                         }?.let {
                             if (shouldHaveSpaceAtTheEnd()) "$it " else it
                         }
@@ -253,7 +253,7 @@ class JavadocParser(
             val lastHtmlTag = text.trim().substringAfterLast("<")
             val endsWithAnUnclosedTag = lastHtmlTag.endsWith(">") && !lastHtmlTag.startsWith("</")
 
-            return (nextSibling as? PsiWhiteSpace)?.text == "\n " &&
+            return (nextSibling as? PsiWhiteSpace)?.text?.startsWith("\n ") == true &&
                     (getNextSiblingIgnoringWhitespace() as? PsiDocToken)?.tokenType != JavaDocTokenTypes.INSTANCE.commentEnd() &&
                     nextNotEmptySibling?.isLeadingAsterisk() == true &&
                     furtherNotEmptySibling?.tokenType == JavaDocTokenTypes.INSTANCE.commentData() &&
diff --git a/plugins/base/src/test/kotlin/parsers/JavadocParserTest.kt b/plugins/base/src/test/kotlin/parsers/JavadocParserTest.kt
new file mode 100644
index 00000000..a6a1413c
--- /dev/null
+++ b/plugins/base/src/test/kotlin/parsers/JavadocParserTest.kt
@@ -0,0 +1,50 @@
+package parsers
+
+import org.jetbrains.dokka.base.testApi.testRunner.BaseAbstractTest
+import org.jetbrains.dokka.model.DEnum
+import org.jetbrains.dokka.model.DModule
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.Test
+import utils.text
+
+class JavadocParserTest : BaseAbstractTest() {
+
+    private fun performJavadocTest(testOperation: (DModule) -> Unit) {
+        val configuration = dokkaConfiguration {
+            sourceSets {
+                sourceSet {
+                    sourceRoots = listOf("src/main/java")
+                }
+            }
+        }
+
+        testInline(
+            """
+            |/src/main/java/sample/Date2.java
+            |
+            |package docs
+            |/**
+            | * class level docs
+            | */
+            |public enum AnEnumType {
+            |    /**
+            |     * content being refreshed, which can be a result of
+            |     * invalidation, refresh that may contain content updates, or the initial load.
+            |     */
+            |    REFRESH
+            |}
+            """.trimIndent(),
+            configuration
+        ) {
+            documentablesMergingStage = testOperation
+        }
+    }
+
+    @Test
+    fun `correctly parsed list`() {
+        performJavadocTest { module ->
+            val docs = (module.packages.single().classlikes.single() as DEnum).entries.single().documentation.values.single().children.single().root.text()
+            assertEquals("content being refreshed, which can be a result of invalidation, refresh that may contain content updates, or the initial load.", docs.trimEnd())
+        }
+    }
+}