dotty.tools.scaladoc.tasty.comments.Cleaner.scala Maven / Gradle / Ivy
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package dotty.tools.scaladoc
package tasty.comments
object Cleaner {
import Regexes._
import java.util.regex.Matcher
/** Prepares the comment for pre-parsing: removes documentation markers and
* extra whitespace, removes dangerous HTML and Javadoc tags, and splits it
* into lines.
*/
def clean(comment: String): List[String] = {
def cleanLine(line: String): String = {
// Remove trailing whitespaces
TrailingWhitespace.replaceAllIn(line, "") match {
case CleanCommentLine(ctl) => ctl
case tl => tl
}
}
val strippedComment = comment.trim.stripPrefix("/*").stripSuffix("*/")
val safeComment = DangerousTags.replaceAllIn(strippedComment, { htmlReplacement(_) })
val javadoclessComment = JavadocTags.replaceAllIn(safeComment, { javadocReplacement(_) })
val markedTagComment =
SafeTags.replaceAllIn(javadoclessComment, { mtch =>
Matcher.quoteReplacement(s"$safeTagMarker${mtch.matched}$safeTagMarker")
})
markedTagComment.linesIterator.toList map (cleanLine)
}
}