From 4349d22cc8abf5ec74075dde1b45c5f2f8679bbf Mon Sep 17 00:00:00 2001
From: jeff
Date: Wed, 30 Jul 2014 23:43:09 -0400
Subject: switched to line-by-line mergable, human-readable file format for
 mappings

---
 src/cuchaz/enigma/mapping/MappingsReader.java | 129 ++++++++++++++++++++++++++
 1 file changed, 129 insertions(+)
 create mode 100644 src/cuchaz/enigma/mapping/MappingsReader.java

(limited to 'src/cuchaz/enigma/mapping/MappingsReader.java')

diff --git a/src/cuchaz/enigma/mapping/MappingsReader.java b/src/cuchaz/enigma/mapping/MappingsReader.java
new file mode 100644
index 0000000..b039409
--- /dev/null
+++ b/src/cuchaz/enigma/mapping/MappingsReader.java
@@ -0,0 +1,129 @@
+/*******************************************************************************
+ * Copyright (c) 2014 Jeff Martin.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the GNU Public License v3.0
+ * which accompanies this distribution, and is available at
+ * http://www.gnu.org/licenses/gpl.html
+ * 
+ * Contributors:
+ *     Jeff Martin - initial API and implementation
+ ******************************************************************************/
+package cuchaz.enigma.mapping;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.Reader;
+import java.util.NoSuchElementException;
+import java.util.Scanner;
+
+import cuchaz.enigma.Util;
+
+public class MappingsReader
+{
+	public Mappings read( Reader in )
+	throws IOException
+	{
+		return read( new BufferedReader( in ) );
+	}
+	
+	public Mappings read( BufferedReader in )
+	throws IOException
+	{
+		Mappings mappings = new Mappings();
+		ClassMapping classMapping = null;
+		MethodMapping methodMapping = null;
+		
+		int lineNumber = 0;
+		String line = null;
+		while( ( line = in.readLine() ) != null )
+		{
+			lineNumber++;
+			
+			// strip comments
+			int commentPos = line.indexOf( '#' );
+			if( commentPos >= 0 )
+			{
+				line = line.substring( 0, commentPos );
+			}
+			
+			// skip blank lines
+			line = line.trim();
+			if( line.length() <= 0 )
+			{
+				continue;
+			}
+			
+			Scanner scanner = new Scanner( line );
+			try
+			{
+				while( scanner.hasNext() )
+				{
+					// read the first token
+					String token = scanner.next();
+					
+					if( token.equalsIgnoreCase( "CLASS" ) )
+					{
+						classMapping = readClass( scanner );
+						mappings.addClassMapping( classMapping );
+						methodMapping = null;
+					}
+					else if( token.equalsIgnoreCase( "FIELD" ) )
+					{
+						if( classMapping == null )
+						{
+							throw new IllegalArgumentException( "Line " + lineNumber + ": Unexpected FIELD entry here!" );
+						}
+						classMapping.addFieldMapping( readField( scanner ) );
+					}
+					else if( token.equalsIgnoreCase( "METHOD" ) )
+					{
+						if( classMapping == null )
+						{
+							throw new IllegalArgumentException( "Line " + lineNumber + ": Unexpected METHOD entry here!" );
+						}
+						methodMapping = readMethod( scanner );
+						classMapping.addMethodMapping( methodMapping );
+					}
+					else if( token.equalsIgnoreCase( "ARG" ) )
+					{
+						if( classMapping == null || methodMapping == null )
+						{
+							throw new IllegalArgumentException( "Line " + lineNumber + ": Unexpected ARG entry here!" );
+						}
+						methodMapping.addArgumentMapping( readArgument( scanner ) );
+					}
+				}
+			}
+			catch( NoSuchElementException ex )
+			{
+				throw new IllegalArgumentException( "Line " + lineNumber + ": malformed line!" );
+			}
+			finally
+			{
+				Util.closeQuietly( scanner );
+			}
+		}
+		
+		return mappings;
+	}
+
+	private ArgumentMapping readArgument( Scanner scanner )
+	{
+		return new ArgumentMapping( scanner.nextInt(), scanner.next() );
+	}
+
+	private ClassMapping readClass( Scanner scanner )
+	{
+		return new ClassMapping( scanner.next(), scanner.next() );
+	}
+	
+	private FieldMapping readField( Scanner scanner )
+	{
+		return new FieldMapping( scanner.next(), scanner.next() );
+	}
+	
+	private MethodMapping readMethod( Scanner scanner )
+	{
+		return new MethodMapping( scanner.next(), scanner.next(), scanner.next(), scanner.next() );
+	}
+}
-- 
cgit v1.2.3