Workbench - Improved search box

Can now find exact matches using = or use regexp if starting with /

src/java/mmm/tech/base/workbench/TBWBGui.java

@@ -4,6 +4,9 @@ package mmm.tech.base.workbench;
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.function.Predicate;
+import java.util.regex.Pattern;
+import java.util.regex.PatternSyntaxException;
 
 import org.lwjgl.input.Keyboard;
 
@@ -224,10 +227,42 @@ public class TBWBGui
 				this.recipes.clear( );
 			}
 
+			Predicate< String > matcher;
+			if ( newText.charAt( 0 ) == '=' && newText.length( ) > 1 ) {
+				final String searchText = newText.substring( 1 );
+				matcher = ( x ) -> x.equals( searchText );
+			} else {
+				Pattern pattern;
+				if ( newText.charAt( 0 ) == '/' && newText.length( ) > 1 ) {
+					try {
+						pattern = Pattern.compile( newText.substring( 1 ) ,
+								Pattern.CASE_INSENSITIVE | Pattern.UNICODE_CASE );
+					} catch ( final PatternSyntaxException e ) {
+						pattern = null;
+					}
+				} else {
+					pattern = null;
+				}
+
+				if ( pattern != null ) {
+					matcher = pattern.asPredicate( );
+				} else {
+					final String[] parts = newText.split( "\\s+" );
+					matcher = ( x ) -> {
+						for ( int i = 0 ; i < parts.length ; i++ ) {
+							if ( !x.contains( parts[ i ] ) ) {
+								return false;
+							}
+						}
+						return true;
+					};
+				}
+			}
+
 			final int nRecipes = fullList.size( );
 			for ( int i = 0 ; i < nRecipes ; i++ ) {
 				final I_CraftingRecipeWrapper recipe = fullList.get( i );
-				if ( I18n.format( recipe.getName( ) ).toLowerCase( ).contains( newText ) ) {
+				if ( matcher.test( I18n.format( recipe.getName( ) ).toLowerCase( ) ) ) {
 					this.recipes.add( recipe );
 				}
 			}