--- /dev/null 2015-04-26 06:51:08.003313989 -0700 +++ new/jdk/src/jdk.jline/share/classes/jdk/internal/jline/AnsiWindowsTerminal.java 2015-06-18 03:05:09.156841128 -0700 @@ -0,0 +1,80 @@ +/* + * Copyright (c) 2002-2012, the original author or authors. + * + * This software is distributable under the BSD license. See the terms of the + * BSD license in the documentation provided with this software. + * + * http://www.opensource.org/licenses/bsd-license.php + */ +package jline; + +import jline.internal.Configuration; +import org.fusesource.jansi.AnsiConsole; +import org.fusesource.jansi.AnsiOutputStream; +import org.fusesource.jansi.WindowsAnsiOutputStream; + +import java.io.ByteArrayOutputStream; +import java.io.OutputStream; + +/** + * ANSI-supported {@link WindowsTerminal}. + * + * @since 2.0 + */ +public class AnsiWindowsTerminal + extends WindowsTerminal +{ + private final boolean ansiSupported = detectAnsiSupport(); + + @Override + public OutputStream wrapOutIfNeeded(OutputStream out) { + return wrapOutputStream(out); + } + + /** + * Returns an ansi output stream handler. We return whatever was + * passed if we determine we cannot handle ansi based on Kernel32 calls. + * + * @return an @{link AltWindowAnsiOutputStream} instance or the passed + * stream. + */ + private static OutputStream wrapOutputStream(final OutputStream stream) { + if (Configuration.isWindows()) { + // On windows we know the console does not interpret ANSI codes.. + try { + return new WindowsAnsiOutputStream(stream); + } catch (Throwable ignore) { + // this happens when JNA is not in the path.. or + // this happens when the stdout is being redirected to a file. + } + // Use the ANSIOutputStream to strip out the ANSI escape sequences. + return new AnsiOutputStream(stream); + } + return stream; + } + + private static boolean detectAnsiSupport() { + OutputStream out = AnsiConsole.wrapOutputStream(new ByteArrayOutputStream()); + try { + out.close(); + } + catch (Exception e) { + // ignore; + } + return out instanceof WindowsAnsiOutputStream; + } + + public AnsiWindowsTerminal() throws Exception { + super(); + } + + @Override + public boolean isAnsiSupported() { + return ansiSupported; + } + + @Override + public boolean hasWeirdWrap() { + return false; + } +}