Scala example source code file (Source.scala)

This example Scala source code file (Source.scala) is included in my "Source Code Warehouse" project. The intent of this project is to help you more easily find Scala source code examples by using tags.

All credit for the original source code belongs to scala-lang.org; I'm just trying to make examples easier to find. (For my Scala work, see my Scala examples and tutorials.)

Scala tags/keywords

compiler, file, htmlpage, list, nsc, scaladoc, source, xml

The Source.scala Scala example source code

/* NSC -- new Scala compiler
 * Copyright 2007-2013 LAMP/EPFL
 * @author  David Bernard, Manohar Jonnalagedda
 */

package scala.tools.nsc
package doc
package html
package page

import scala.xml.NodeSeq
import java.io.File

class Source(sourceFile: File) extends HtmlPage {

  val path = List("source.html")

  val title = "Scaladoc: page source"

  val headers =
    NodeSeq.Empty

  val body =
    <body>
      <h1>Page source is not implemented yet</h1>
    </body>

    /*


    def readTextFromSrcDir(subPath: String) :Option[String] = {
      readTextFromFile(new File(sourceDir, subPath))
    }

    def readTextFromFile(f : File) :Option[String] = {
      if (f.exists) {
        Some(Source.fromFile(f)(Codec.default).getLines().mkString(""))
      } else {
        None
      }
    }


    def writeTextToFile(f : File, txt : String, header: Option[String], footer: Option[String]) {
      val out = new FileOutputStream(f)
      try {
        val enc = "UTF-8"
        header.foreach(s => out.write(s.getBytes(enc)))
        out.write(txt.getBytes(enc))
        footer.foreach(s => out.write(s.getBytes(enc)))
      } finally {
        try {
          out.close()
        } catch {
          case _ => //ignore
        }
      }
    }

    trait SourceHtmlizer {
      def scalaToHtml(src :File) : Option[File]
    }

    lazy val sourceHtmlizer : SourceHtmlizer = {
      if (cfg.htmlizeSource) {
        new SourceHtmlizer {

          val inDir: File = cfg.sourcedir
          val outDir: File = cfg.outputdir

          private def relativize(uri: URI, from: URI) = linkHelper.relativize(uri, from).getOrElse("__notFound__" + uri.getPath)

          def header(dest: URI) = Some("""
          <html>
          <head>
            <link href='""" + relativize(new URI("site:/_highlighter/SyntaxHighlighter.css"), dest) + """' rel='stylesheet' type='text/css'/>
            <script language='javascript' src='""" + relativize(new URI("site:/_highlighter/shAll.js"), dest) + """'></script>
          </head>
          <body>
            <pre name="code" class="scala" style="width:100%">
        """)

          def footer(dest: URI) = Some("""</pre>
            <script language='javascript'>
              dp.SyntaxHighlighter.ClipboardSwf = '""" + relativize(new URI("site:/_highlighter/clipboard.swf"), dest) + """';
              dp.SyntaxHighlighter.HighlightAll('code');
            </script>
          </body>
          </html>
        """)

          //TODO: escape the source code
          def scalaToHtml(src :File) = {
            val dest = new File(outDir, fileHelper.relativePathUnderDir(src, inDir) + ".html")
            if (!dest.exists || dest.lastModified < src.lastModified) {

              //we need to verify whether the directory we are trying to write to has already been created or not
              if(!dest.getParentFile.exists) dest.getParentFile.mkdirs

              val uri = linkHelper.uriFor(dest).get
              var txt = fileHelper.readTextFromFile(src).getOrElse("")
              txt = txt.replace("<", "<")
              fileHelper.writeTextToFile(dest, txt, header(uri), footer(uri))
            }
            Some(dest)
          }

          def copyResources() {
            val loader = this.getClass().getClassLoader()
            val buf = new Array[Byte](1024)
            def copyResource(name: String) = fileHelper.copyResource("/scala/tools/nsc/doc/html/resource/", name, outDir, loader, buf)
            copyResource("_highlighter/clipboard.swf")
            copyResource("_highlighter/shAll.js")
            copyResource("_highlighter/SyntaxHighlighter.css")
          }

          copyResources()
        }
      } else {
        new SourceHtmlizer {
          def scalaToHtml(src :File) = None
        }
      }
    }
    */

}

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Scala example source code file (Source.scala)

Scala tags/keywords

The Source.scala Scala example source code

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