diff options
Diffstat (limited to 'src/repl/scala/tools/nsc/interpreter')
5 files changed, 61 insertions, 27 deletions
diff --git a/src/repl/scala/tools/nsc/interpreter/Formatting.scala b/src/repl/scala/tools/nsc/interpreter/Formatting.scala index 844997429c..4a9548730a 100644 --- a/src/repl/scala/tools/nsc/interpreter/Formatting.scala +++ b/src/repl/scala/tools/nsc/interpreter/Formatting.scala @@ -30,3 +30,6 @@ class Formatting(indent: Int) { } ) } +object Formatting { + def forPrompt(prompt: String) = new Formatting(prompt.lines.toList.last.length) +} diff --git a/src/repl/scala/tools/nsc/interpreter/ILoop.scala b/src/repl/scala/tools/nsc/interpreter/ILoop.scala index e8c6d02d1e..612bdd98c9 100644 --- a/src/repl/scala/tools/nsc/interpreter/ILoop.scala +++ b/src/repl/scala/tools/nsc/interpreter/ILoop.scala @@ -56,13 +56,9 @@ class ILoop(in0: Option[BufferedReader], protected val out: JPrintWriter) private var globalFuture: Future[Boolean] = _ - /** Print a welcome message */ - def printWelcome() { - echo(s""" - |Welcome to Scala $versionString ($javaVmName, Java $javaVersion). - |Type in expressions to have them evaluated. - |Type :help for more information.""".trim.stripMargin - ) + /** Print a welcome message! */ + def printWelcome(): Unit = { + Option(replProps.welcome) filter (!_.isEmpty) foreach echo replinfo("[info] started at " + new java.util.Date) } @@ -111,10 +107,6 @@ class ILoop(in0: Option[BufferedReader], protected val out: JPrintWriter) } class ILoopInterpreter extends IMain(settings, out) { - // the expanded prompt but without color escapes and without leading newline, for purposes of indenting - override lazy val formatting: Formatting = new Formatting( - (replProps.promptString format Properties.versionNumberString).lines.toList.last.length - ) override protected def parentClassLoader = settings.explicitParentLoader.getOrElse( classOf[ILoop].getClassLoader ) } @@ -679,9 +671,8 @@ class ILoop(in0: Option[BufferedReader], protected val out: JPrintWriter) } def verbosity() = { - val old = intp.printResults - intp.printResults = !old - echo("Switched " + (if (old) "off" else "on") + " result printing.") + intp.printResults = !intp.printResults + replinfo(s"Result printing is ${ if (intp.printResults) "on" else "off" }.") } /** Run one command submitted by the user. Two values are returned: @@ -761,7 +752,8 @@ class ILoop(in0: Option[BufferedReader], protected val out: JPrintWriter) private object paste extends Pasted { import scala.util.matching.Regex.quote - val ContinueString = " | " + val ContinuePrompt = replProps.continuePrompt + val ContinueString = replProps.continueText // " | " val PromptString = prompt.lines.toList.last val anyPrompt = s"""\\s*(?:${quote(PromptString.trim)}|${quote(AltPromptString.trim)})\\s*""".r @@ -805,7 +797,7 @@ class ILoop(in0: Option[BufferedReader], protected val out: JPrintWriter) echo("You typed two blank lines. Starting a new command.") None case IR.Incomplete => - in.readLine(paste.ContinueString) match { + in.readLine(paste.ContinuePrompt) match { case null => // we know compilation is going to fail since we're at EOF and the // parser thinks the input is still incomplete, but since this is @@ -948,8 +940,9 @@ object ILoop { Console.withOut(ostream) { val output = new JPrintWriter(new OutputStreamWriter(ostream), true) { // skip margin prefix for continuation lines, unless preserving session text for test + // should test for repl.paste.ContinueString or replProps.continueText.contains(ch) override def write(str: String) = - if (!inSession && (str forall (ch => ch.isWhitespace || ch == '|'))) () // repl.paste.ContinueString + if (!inSession && (str forall (ch => ch.isWhitespace || ch == '|'))) () else super.write(str) } val input = new BufferedReader(new StringReader(code.trim + "\n")) { diff --git a/src/repl/scala/tools/nsc/interpreter/IMain.scala b/src/repl/scala/tools/nsc/interpreter/IMain.scala index 2550a5dc57..841b4abfa5 100644 --- a/src/repl/scala/tools/nsc/interpreter/IMain.scala +++ b/src/repl/scala/tools/nsc/interpreter/IMain.scala @@ -113,9 +113,7 @@ class IMain(@BeanProperty val factory: ScriptEngineFactory, initialSettings: Set def this() = this(new Settings()) // the expanded prompt but without color escapes and without leading newline, for purposes of indenting - lazy val formatting: Formatting = new Formatting( - (replProps.promptString format Properties.versionNumberString).lines.toList.last.length - ) + lazy val formatting = Formatting.forPrompt(replProps.promptText) lazy val reporter: ReplReporter = new ReplReporter(this) import formatting.indentCode diff --git a/src/repl/scala/tools/nsc/interpreter/Pasted.scala b/src/repl/scala/tools/nsc/interpreter/Pasted.scala index 5f388eb15b..f8d8c2ddb1 100644 --- a/src/repl/scala/tools/nsc/interpreter/Pasted.scala +++ b/src/repl/scala/tools/nsc/interpreter/Pasted.scala @@ -21,7 +21,13 @@ abstract class Pasted { def PromptString: String def AltPromptString: String = "scala> " - private val testBoth = PromptString != AltPromptString + /* `testBoth` cannot be a val, as `Pasted` is inherited by `object paste` in ILoop, + which would cause `val testBoth` to be initialized before `val PromptString` was. + + object paste extends Pasted { + val PromptString = prompt.lines.toList.last + */ + private def testBoth = PromptString != AltPromptString private val spacey = " \t".toSet def matchesPrompt(line: String) = matchesString(line, PromptString) || testBoth && matchesString(line, AltPromptString) diff --git a/src/repl/scala/tools/nsc/interpreter/ReplProps.scala b/src/repl/scala/tools/nsc/interpreter/ReplProps.scala index df65e9974d..588d92f81b 100644 --- a/src/repl/scala/tools/nsc/interpreter/ReplProps.scala +++ b/src/repl/scala/tools/nsc/interpreter/ReplProps.scala @@ -6,9 +6,11 @@ package scala.tools.nsc package interpreter -import Properties.shellPromptString +import Properties.{ javaVersion, javaVmName, shellPromptString, shellWelcomeString, + versionString, versionNumberString } import scala.sys._ import Prop._ +import java.util.{ Formattable, FormattableFlags, Formatter } class ReplProps { private def bool(name: String) = BooleanProp.keyExists(name) @@ -22,12 +24,44 @@ class ReplProps { val trace = bool("scala.repl.trace") val power = bool("scala.repl.power") - // Handy system prop for shell prompt, or else pick it up from compiler.properties - val promptString = Prop[String]("scala.repl.prompt").option getOrElse (if (info) "%nscala %s> " else shellPromptString) - val prompt = { + def enversion(s: String) = { + import FormattableFlags._ + val v = new Formattable { + override def formatTo(formatter: Formatter, flags: Int, width: Int, precision: Int) = { + val version = if ((flags & ALTERNATE) != 0) versionNumberString else versionString + val left = if ((flags & LEFT_JUSTIFY) != 0) "-" else "" + val w = if (width >= 0) s"$width" else "" + val p = if (precision >= 0) s".$precision" else "" + val fmt = s"%${left}${w}${p}s" + formatter.format(fmt, version) + } + } + s.format(v, javaVersion, javaVmName) + } + def encolor(s: String) = { import scala.io.AnsiColor.{ MAGENTA, RESET } - val p = promptString format Properties.versionNumberString - if (colorOk) s"$MAGENTA$p$RESET" else p + if (colorOk) s"$MAGENTA$s$RESET" else s + } + + // Handy system prop for shell prompt, or else pick it up from compiler.properties + val promptString = Prop[String]("scala.repl.prompt").option getOrElse (if (info) "%nscala %#s> " else shellPromptString) + val promptText = enversion(promptString) + val prompt = encolor(promptText) + + // Prompt for continued input, will be right-adjusted to width of the primary prompt + val continueString = Prop[String]("scala.repl.continue").option getOrElse "| " + val continueText = { + val text = enversion(continueString) + val margin = promptText.lines.toList.last.length - text.length + if (margin > 0) " " * margin + text else text + } + val continuePrompt = encolor(continueText) + + // Next time. + //def welcome = enversion(Prop[String]("scala.repl.welcome") or shellWelcomeString) + def welcome = enversion { + val p = Prop[String]("scala.repl.welcome") + if (p.isSet) p.get else shellWelcomeString } /** CSV of paged,across to enable pagination or `-x` style |