Added support for arguments with spaces.

1 files changed, 173 insertions, 0 deletions

diff --git a/java/src/IceUtil/Options.java b/java/src/IceUtil/Options.java
new file mode 100644
index 00000000000..39bb305db1a
--- /dev/null
+++ b/java/src/IceUtil/Options.java
@@ -0,0 +1,173 @@
+// **********************************************************************
+//
+// Copyright (c) 2003-2005 ZeroC, Inc. All rights reserved.
+//
+// This copy of Ice is licensed to you under the terms described in the
+// ICE_LICENSE file included in this distribution.
+//
+// **********************************************************************
+
+package IceUtil;
+
+public final class Options
+{
+    static public final class BadQuote extends Exception
+    {
+	BadQuote(String message)
+        {
+	    super(message);
+	}
+    }
+
+    static public String[]
+    split(String line)
+	throws BadQuote
+    {
+	final String IFS = " \t\n";
+	final int NormalState = 1;
+	final int DoubleQuoteState = 2;
+	final int SingleQuoteState = 3;
+
+	line = line.trim();
+
+	int state = NormalState;
+
+	StringBuffer arg = new StringBuffer();
+	java.util.List vec = new java.util.ArrayList();
+
+	for(int i = 0; i < line.length(); ++i)
+	{
+	    char c = line.charAt(i);
+	    switch(state)
+	    {
+	    case NormalState:
+	    {
+		switch(c)
+		{
+		case '\\':
+		{
+		    //
+		    // Ignore a backslash at the end of the string,
+		    // and strip backslash-newline pairs. Anything
+		    // else following a backslash is taken literally.
+		    //
+		    if(i < line.length() - 1 && line.charAt(++i) != '\n')
+		    {
+			arg.append(line.charAt(i));
+		    }
+		    break;
+		}
+		case '\'':
+		{
+		    state = SingleQuoteState;
+		    break;
+		}
+		case '"':
+		{
+		    state = DoubleQuoteState;
+		    break;
+		}
+		default:
+		{
+		    if(IFS.indexOf(line.charAt(i)) != -1)
+		    {
+			vec.add(arg.toString());
+			arg = new StringBuffer();
+			
+			//
+			// Move to start of next argument.
+			//
+			while(++i < line.length() && IFS.indexOf(line.charAt(i)) != -1);
+			--i;
+		    }
+		    else
+		    {
+			arg.append(line.charAt(i));
+		    }
+		    break;
+		}
+		}
+		break;
+	    }
+	    case DoubleQuoteState:
+	    {
+	        //
+		// Within double quotes, only backslash retains its special
+		// meaning, and only if followed by double quote, backslash,
+		// or newline. If not followed by one of these characters,
+		// both the backslash and the character are preserved.
+		//
+		if(c == '\\' && i < line.length() - 1)
+		{
+		    switch(c = line.charAt(++i))
+		    {
+			case '"':
+			case '\\':
+			case '\n':
+			{
+			    arg.append(c);
+			    break;
+			}
+			default:
+			{
+			    arg.append('\\');
+			    arg.append(c);
+			    break;
+			}
+		    }
+		}
+		else if(c == '"') // End of double-quote mode.
+		{
+		    state = NormalState;
+		}
+		else
+		{
+		    arg.append(c); // Everything else is taken literally.
+		}
+		break;
+	    }
+	    case SingleQuoteState:
+	    {
+		if(c == '\'') // End of single-quote mode.
+		{
+		    state = NormalState;
+		}
+		else
+		{
+		    arg.append(c); // Everything else is taken literally.
+		}
+		break;
+	    }
+	    default:
+		assert(false);
+		break;
+	    }
+	}
+
+	switch(state)
+	{
+	case NormalState:
+	{
+	    vec.add(arg.toString());
+	    break;
+	}
+	case SingleQuoteState:
+	{
+	    throw new BadQuote("missing closing single quote");
+	}
+	case DoubleQuoteState:
+	{
+	    throw new BadQuote("missing closing double quote");
+	}
+	default:
+	{
+	    assert(false);
+	    break;
+	}
+	}
+	
+	return (String[])vec.toArray(new String[0]);
+    }
+
+
+}