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Diffstat (limited to 'scalalib/overrides-2.11/scala/Console.scala')
-rw-r--r-- | scalalib/overrides-2.11/scala/Console.scala | 222 |
1 files changed, 222 insertions, 0 deletions
diff --git a/scalalib/overrides-2.11/scala/Console.scala b/scalalib/overrides-2.11/scala/Console.scala new file mode 100644 index 0000000..b85f8dc --- /dev/null +++ b/scalalib/overrides-2.11/scala/Console.scala @@ -0,0 +1,222 @@ +/* __ *\ +** ________ ___ / / ___ Scala API ** +** / __/ __// _ | / / / _ | (c) 2003-2013, LAMP/EPFL ** +** __\ \/ /__/ __ |/ /__/ __ | http://scala-lang.org/ ** +** /____/\___/_/ |_/____/_/ | | ** +** |/ ** +\* */ + +package scala + +import java.io.{ BufferedReader, InputStream, InputStreamReader, OutputStream, PrintStream, Reader } +import scala.io.{ AnsiColor, StdIn } +import scala.util.DynamicVariable + +/** Implements functionality for + * printing Scala values on the terminal as well as reading specific values. + * Also defines constants for marking up text on ANSI terminals. + * + * @author Matthias Zenger + * @version 1.0, 03/09/2003 + */ +object Console extends DeprecatedConsole with AnsiColor { + private val outVar = new DynamicVariable[PrintStream](java.lang.System.out) + private val errVar = new DynamicVariable[PrintStream](java.lang.System.err) + private val inVar = new DynamicVariable[BufferedReader](null) + //new BufferedReader(new InputStreamReader(java.lang.System.in))) + + protected def setOutDirect(out: PrintStream): Unit = outVar.value = out + protected def setErrDirect(err: PrintStream): Unit = errVar.value = err + protected def setInDirect(in: BufferedReader): Unit = inVar.value = in + + /** The default output, can be overridden by `setOut` */ + def out = outVar.value + /** The default error, can be overridden by `setErr` */ + def err = errVar.value + /** The default input, can be overridden by `setIn` */ + def in = inVar.value + + /** Sets the default output stream for the duration + * of execution of one thunk. + * + * @example {{{ + * withOut(Console.err) { println("This goes to default _error_") } + * }}} + * + * @param out the new output stream. + * @param thunk the code to execute with + * the new output stream active + * @return the results of `thunk` + * @see `withOut[T](out:OutputStream)(thunk: => T)` + */ + def withOut[T](out: PrintStream)(thunk: =>T): T = + outVar.withValue(out)(thunk) + + /** Sets the default output stream for the duration + * of execution of one thunk. + * + * @param out the new output stream. + * @param thunk the code to execute with + * the new output stream active + * @return the results of `thunk` + * @see `withOut[T](out:PrintStream)(thunk: => T)` + */ + def withOut[T](out: OutputStream)(thunk: =>T): T = + withOut(new PrintStream(out))(thunk) + + /** Set the default error stream for the duration + * of execution of one thunk. + * @example {{{ + * withErr(Console.out) { println("This goes to default _out_") } + * }}} + * + * @param err the new error stream. + * @param thunk the code to execute with + * the new error stream active + * @return the results of `thunk` + * @see `withErr[T](err:OutputStream)(thunk: =>T)` + */ + def withErr[T](err: PrintStream)(thunk: =>T): T = + errVar.withValue(err)(thunk) + + /** Sets the default error stream for the duration + * of execution of one thunk. + * + * @param err the new error stream. + * @param thunk the code to execute with + * the new error stream active + * @return the results of `thunk` + * @see `withErr[T](err:PrintStream)(thunk: =>T)` + */ + def withErr[T](err: OutputStream)(thunk: =>T): T = + withErr(new PrintStream(err))(thunk) + + /** Sets the default input stream for the duration + * of execution of one thunk. + * + * @example {{{ + * val someFile:Reader = openFile("file.txt") + * withIn(someFile) { + * // Reads a line from file.txt instead of default input + * println(readLine) + * } + * }}} + * + * @param thunk the code to execute with + * the new input stream active + * + * @return the results of `thunk` + * @see `withIn[T](in:InputStream)(thunk: =>T)` + */ + def withIn[T](reader: Reader)(thunk: =>T): T = + inVar.withValue(new BufferedReader(reader))(thunk) + + /** Sets the default input stream for the duration + * of execution of one thunk. + * + * @param in the new input stream. + * @param thunk the code to execute with + * the new input stream active + * @return the results of `thunk` + * @see `withIn[T](reader:Reader)(thunk: =>T)` + */ + def withIn[T](in: InputStream)(thunk: =>T): T = + withIn(new InputStreamReader(in))(thunk) + + /** Prints an object to `out` using its `toString` method. + * + * @param obj the object to print; may be null. + */ + def print(obj: Any) { + out.print(if (null == obj) "null" else obj.toString()) + } + + /** Flushes the output stream. This function is required when partial + * output (i.e. output not terminated by a newline character) has + * to be made visible on the terminal. + */ + def flush() { out.flush() } + + /** Prints a newline character on the default output. + */ + def println() { out.println() } + + /** Prints out an object to the default output, followed by a newline character. + * + * @param x the object to print. + */ + def println(x: Any) { out.println(x) } + + /** Prints its arguments as a formatted string to the default output, + * based on a string pattern (in a fashion similar to printf in C). + * + * The interpretation of the formatting patterns is described in + * <a href="" target="contentFrame" class="java/util/Formatter"> + * `java.util.Formatter`</a>. + * + * @param text the pattern for formatting the arguments. + * @param args the arguments used to instantiating the pattern. + * @throws java.lang.IllegalArgumentException if there was a problem with the format string or arguments + */ + def printf(text: String, args: Any*) { out.print(text format (args : _*)) } +} + +private[scala] abstract class DeprecatedConsole { + self: Console.type => + + /** Internal usage only. */ + protected def setOutDirect(out: PrintStream): Unit + protected def setErrDirect(err: PrintStream): Unit + protected def setInDirect(in: BufferedReader): Unit + + @deprecated("Use the method in scala.io.StdIn", "2.11.0") def readBoolean(): Boolean = StdIn.readBoolean() + @deprecated("Use the method in scala.io.StdIn", "2.11.0") def readByte(): Byte = StdIn.readByte() + @deprecated("Use the method in scala.io.StdIn", "2.11.0") def readChar(): Char = StdIn.readChar() + @deprecated("Use the method in scala.io.StdIn", "2.11.0") def readDouble(): Double = StdIn.readDouble() + @deprecated("Use the method in scala.io.StdIn", "2.11.0") def readFloat(): Float = StdIn.readFloat() + @deprecated("Use the method in scala.io.StdIn", "2.11.0") def readInt(): Int = StdIn.readInt() + @deprecated("Use the method in scala.io.StdIn", "2.11.0") def readLine(): String = StdIn.readLine() + @deprecated("Use the method in scala.io.StdIn", "2.11.0") def readLine(text: String, args: Any*): String = StdIn.readLine(text, args: _*) + @deprecated("Use the method in scala.io.StdIn", "2.11.0") def readLong(): Long = StdIn.readLong() + @deprecated("Use the method in scala.io.StdIn", "2.11.0") def readShort(): Short = StdIn.readShort() + @deprecated("Use the method in scala.io.StdIn", "2.11.0") def readf(format: String): List[Any] = StdIn.readf(format) + @deprecated("Use the method in scala.io.StdIn", "2.11.0") def readf1(format: String): Any = StdIn.readf1(format) + @deprecated("Use the method in scala.io.StdIn", "2.11.0") def readf2(format: String): (Any, Any) = StdIn.readf2(format) + @deprecated("Use the method in scala.io.StdIn", "2.11.0") def readf3(format: String): (Any, Any, Any) = StdIn.readf3(format) + + /** Sets the default output stream. + * + * @param out the new output stream. + */ + @deprecated("Use withOut", "2.11.0") def setOut(out: PrintStream): Unit = setOutDirect(out) + + /** Sets the default output stream. + * + * @param out the new output stream. + */ + @deprecated("Use withOut", "2.11.0") def setOut(out: OutputStream): Unit = setOutDirect(new PrintStream(out)) + + /** Sets the default error stream. + * + * @param err the new error stream. + */ + @deprecated("Use withErr", "2.11.0") def setErr(err: PrintStream): Unit = setErrDirect(err) + + /** Sets the default error stream. + * + * @param err the new error stream. + */ + @deprecated("Use withErr", "2.11.0") def setErr(err: OutputStream): Unit = setErrDirect(new PrintStream(err)) + + /** Sets the default input stream. + * + * @param reader specifies the new input stream. + */ + @deprecated("Use withIn", "2.11.0") def setIn(reader: Reader): Unit = setInDirect(new BufferedReader(reader)) + + /** Sets the default input stream. + * + * @param in the new input stream. + */ + @deprecated("Use withIn", "2.11.0") def setIn(in: InputStream): Unit = setInDirect(new BufferedReader(new InputStreamReader(in))) +} |