Add files from jline for diff visibility
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src/main/java/jline/AnsiWindowsTerminal.java
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src/main/java/jline/AnsiWindowsTerminal.java
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/*
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* Copyright (C) 2009 the original author(s).
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* MODIFICATIONS: methods to deal with wrapping the output stream.
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*/
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package jline;
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import org.fusesource.jansi.AnsiConsole;
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import org.fusesource.jansi.AnsiOutputStream;
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import org.fusesource.jansi.WindowsAnsiOutputStream;
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import java.io.ByteArrayOutputStream;
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import java.io.OutputStream;
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/**
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* ANSI-supported {@link WindowsTerminal}.
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*
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* @since 2.0
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*/
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public class AnsiWindowsTerminal
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extends WindowsTerminal
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{
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private final boolean ansiSupported = detectAnsiSupport();
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@Override
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public OutputStream wrapOutIfNeeded(OutputStream out) {
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return wrapOutputStream(out);
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}
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/**
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* Returns an ansi output stream handler. We return whatever was
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* passed if we determine we cannot handle ansi based on Kernel32 calls.
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*
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* @return an @{link AltWindowAnsiOutputStream} instance or the passed
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* stream.
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*/
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private static OutputStream wrapOutputStream(final OutputStream stream) {
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String os = System.getProperty("os.name");
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if( os.startsWith("Windows") ) {
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// On windows we know the console does not interpret ANSI codes..
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try {
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return new WindowsAnsiOutputStream(stream);
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} catch (Throwable ignore) {
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// this happens when JNA is not in the path.. or
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// this happens when the stdout is being redirected to a file.
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}
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// Use the ANSIOutputStream to strip out the ANSI escape sequences.
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return new AnsiOutputStream(stream);
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}
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return stream;
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}
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private static boolean detectAnsiSupport() {
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OutputStream out = AnsiConsole.wrapOutputStream(new ByteArrayOutputStream());
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try {
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out.close();
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}
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catch (Exception e) {
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// ignore;
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}
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return out instanceof WindowsAnsiOutputStream;
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}
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public AnsiWindowsTerminal() throws Exception {
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super();
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}
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@Override
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public boolean isAnsiSupported() {
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return ansiSupported;
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}
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@Override
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public boolean hasWeirdWrap() {
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return false;
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}
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}
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219
src/main/java/jline/internal/TerminalLineSettings.java
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src/main/java/jline/internal/TerminalLineSettings.java
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/*
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* Copyright (c) 2002-2007, Marc Prud'hommeaux. All rights reserved.
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*
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* This software is distributable under the BSD license. See the terms of the
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* BSD license in the documentation provided with this software.
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*/
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package jline.internal;
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import java.io.ByteArrayOutputStream;
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import java.io.Closeable;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.OutputStream;
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import java.text.MessageFormat;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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/**
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* Provides access to terminal line settings via <tt>stty</tt>.
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*
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* @author <a href="mailto:mwp1@cornell.edu">Marc Prud'hommeaux</a>
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* @author <a href="mailto:dwkemp@gmail.com">Dale Kemp</a>
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* @author <a href="mailto:jason@planet57.com">Jason Dillon</a>
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* @author <a href="mailto:jbonofre@apache.org">Jean-Baptiste Onofré</a>
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* @since 2.0
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*/
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public final class TerminalLineSettings
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{
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public static final String JLINE_STTY = "jline.stty";
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public static final String DEFAULT_STTY = "stty";
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public static final String JLINE_SH = "jline.sh";
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public static final String DEFAULT_SH = "sh";
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private String sttyCommand;
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private String shCommand;
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private String config;
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private long configLastFetched;
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public TerminalLineSettings() throws IOException, InterruptedException {
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sttyCommand = Configuration.getString(JLINE_STTY, DEFAULT_STTY);
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shCommand = Configuration.getString(JLINE_SH, DEFAULT_SH);
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config = get("-a");
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configLastFetched = System.currentTimeMillis();
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Log.debug("Config: ", config);
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// sanity check
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if (config.length() == 0) {
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throw new IOException(MessageFormat.format("Unrecognized stty code: {0}", config));
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}
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}
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public String getConfig() {
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return config;
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}
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public void restore() throws IOException, InterruptedException {
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set("sane");
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}
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public String get(final String args) throws IOException, InterruptedException {
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return stty(args);
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}
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public void set(final String args) throws IOException, InterruptedException {
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stty(args);
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}
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/**
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* <p>
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* Get the value of a stty property, including the management of a cache.
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* </p>
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*
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* @param name the stty property.
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* @return the stty property value.
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*/
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public int getProperty(String name) {
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assert name != null;
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try {
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// tty properties are cached so we don't have to worry too much about getting term widht/height
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if (config == null || System.currentTimeMillis() - configLastFetched > 1000 ) {
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config = get("-a");
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configLastFetched = System.currentTimeMillis();
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}
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return this.getProperty(name, config);
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} catch (Exception e) {
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Log.warn("Failed to query stty ", name, e);
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return -1;
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}
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}
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/**
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* <p>
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* Parses a stty output (provided by stty -a) and return the value of a given property.
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* </p>
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*
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* @param name property name.
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* @param stty string resulting of stty -a execution.
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* @return value of the given property.
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*/
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protected static int getProperty(String name, String stty) {
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// try the first kind of regex
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Pattern pattern = Pattern.compile(name + "\\s+=\\s+([^;]*)[;\\n\\r]");
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Matcher matcher = pattern.matcher(stty);
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if (!matcher.find()) {
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// try a second kind of regex
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pattern = Pattern.compile(name + "\\s+([^;]*)[;\\n\\r]");
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matcher = pattern.matcher(stty);
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if (!matcher.find()) {
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// try a second try of regex
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pattern = Pattern.compile("(\\S*)\\s+" + name);
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matcher = pattern.matcher(stty);
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if (!matcher.find()) {
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return -1;
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}
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}
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}
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return parseControlChar(matcher.group(1));
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}
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private static int parseControlChar(String str) {
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// under
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if ("<undef>".equals(str)) {
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return -1;
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}
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// octal
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if (str.charAt(0) == '0') {
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return Integer.parseInt(str, 8);
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}
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// decimal
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if (str.charAt(0) >= '1' && str.charAt(0) <= '9') {
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return Integer.parseInt(str, 10);
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}
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// control char
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if (str.charAt(0) == '^') {
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if (str.charAt(1) == '?') {
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return 127;
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} else {
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return str.charAt(1) - 64;
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}
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} else if (str.charAt(0) == 'M' && str.charAt(1) == '-') {
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if (str.charAt(2) == '^') {
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if (str.charAt(3) == '?') {
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return 127 + 128;
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} else {
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return str.charAt(3) - 64 + 128;
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}
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} else {
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return str.charAt(2) + 128;
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}
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} else {
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return str.charAt(0);
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}
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}
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private String stty(final String args) throws IOException, InterruptedException {
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assert args != null;
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return exec(String.format("%s %s < /dev/tty", sttyCommand, args));
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}
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private String exec(final String cmd) throws IOException, InterruptedException {
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assert cmd != null;
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return exec(shCommand, "-c", cmd);
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}
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private String exec(final String... cmd) throws IOException, InterruptedException {
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assert cmd != null;
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ByteArrayOutputStream bout = new ByteArrayOutputStream();
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Log.trace("Running: ", cmd);
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Process p = Runtime.getRuntime().exec(cmd);
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InputStream in = null;
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InputStream err = null;
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OutputStream out = null;
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try {
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int c;
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in = p.getInputStream();
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while ((c = in.read()) != -1) {
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bout.write(c);
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}
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err = p.getErrorStream();
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while ((c = err.read()) != -1) {
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bout.write(c);
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}
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out = p.getOutputStream();
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p.waitFor();
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}
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finally {
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close(in, out, err);
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}
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String result = bout.toString();
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Log.trace("Result: ", result);
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return result;
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}
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private static void close(final Closeable... closeables) {
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for (Closeable c : closeables) {
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try {
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c.close();
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}
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catch (Exception e) {
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// Ignore
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}
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}
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}
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}
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