X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Futil%2FPlatform.java;h=8c406a9ab39ef6cc5d539420422e8aa54ebf9631;hb=b2f9a8d7bce642ff4011bc6d49e02bb0569fbb11;hp=71ad6f7efce9a205b5d1ef0d718bb42daff20c64;hpb=31d4457b311d9954a2106623d318860c0c9dc151;p=jalview.git

diff --git a/src/jalview/util/Platform.java b/src/jalview/util/Platform.java
index 71ad6f7..8c406a9 100644
--- a/src/jalview/util/Platform.java
+++ b/src/jalview/util/Platform.java
@@ -1,19 +1,75 @@
-package jalview.util;
-
-/**
- * System platform information used by Applet and Application
- * @author Jim Procter
- */
-public class Platform
-{
-  /**
-   * sorry folks - Macs really are different
-   * @return true if we do things in a special way.
-   */
-  public boolean isAMac()
-  {
-    return java.lang.System.getProperty("os.name").indexOf("Mac")>-1;
-    
-  }
-
-}
+/*
+ * Jalview - A Sequence Alignment Editor and Viewer (Version 2.8.1)
+ * Copyright (C) 2014 The Jalview Authors
+ * 
+ * This file is part of Jalview.
+ * 
+ * Jalview is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License 
+ * as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ *  
+ * Jalview is distributed in the hope that it will be useful, but 
+ * WITHOUT ANY WARRANTY; without even the implied warranty 
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
+ * PURPOSE.  See the GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License along with Jalview.  If not, see <http://www.gnu.org/licenses/>.
+ * The Jalview Authors are detailed in the 'AUTHORS' file.
+ */
+package jalview.util;
+
+/**
+ * System platform information used by Applet and Application
+ * 
+ * @author Jim Procter
+ */
+public class Platform
+{
+  /**
+   * sorry folks - Macs really are different
+   * 
+   * @return true if we do things in a special way.
+   */
+  public boolean isAMac()
+  {
+    return java.lang.System.getProperty("os.name").indexOf("Mac") > -1;
+
+  }
+
+  public boolean isHeadless()
+  {
+    String hdls = java.lang.System.getProperty("java.awt.headless");
+
+    return hdls != null && hdls.equals("true");
+  }
+
+  /**
+   * 
+   * @return nominal maximum command line length for this platform
+   */
+  public static int getMaxCommandLineLength()
+  {
+    // TODO: determine nominal limits for most platforms.
+    return 2046; // this is the max length for a windows NT system.
+  }
+
+  /**
+   * escape a string according to the local platform's escape character
+   * 
+   * @param file
+   * @return escaped file
+   */
+  public static String escapeString(String file)
+  {
+    StringBuffer f = new StringBuffer();
+    int p = 0, lastp = 0;
+    while ((p = file.indexOf('\\', lastp)) > -1)
+    {
+      f.append(file.subSequence(lastp, p));
+      f.append("\\\\");
+      lastp = p + 1;
+    }
+    f.append(file.substring(lastp));
+    return f.toString();
+  }
+}