1 files changed, 15 insertions, 1 deletions

diff --git a/src/cuchaz/enigma/analysis/SourceIndex.java b/src/cuchaz/enigma/analysis/SourceIndex.java
index 398a50d..7981f87 100644
--- a/src/cuchaz/enigma/analysis/SourceIndex.java
+++ b/src/cuchaz/enigma/analysis/SourceIndex.java
@@ -57,10 +57,24 @@ public class SourceIndex
                 {
                         throw new IllegalArgumentException( "Invalid region: " + region );
                 }
-                return new Token(
+                Token token = new Token(
                         toPos( region.getBeginLine(), region.getBeginColumn() ),
                         toPos( region.getEndLine(), region.getEndColumn() )
                 );
+                
+                // HACKHACK: sometimes node regions are off by one
+                // I think this is a bug in Procyon, but it's easy to work around
+                if( !Character.isJavaIdentifierStart( m_source.charAt( token.start ) ) )
+                {
+                        token.start++;
+                        token.end++;
+                        if( !Character.isJavaIdentifierStart( m_source.charAt( token.start ) ) )
+                        {
+                                throw new IllegalArgumentException( "Region " + region + " does not describe valid token: '" + m_source.substring( token.start, token.end ) + "'" );
+                        }
+                }
+                
+                return token;
         }
         
         public void add( AstNode node, Entry entry )