Clean up spacing on Processing.g4

java/src/processing/mode/java/preproc/Processing.g4

@@ -1,18 +1,18 @@
 /**
- *	Based on Java 1.7 grammar for ANTLR 4, see Java.g4
+ *  Based on Java 1.7 grammar for ANTLR 4, see Java.g4
  *
- *	- changes main entry point to reflect sketch types 'static' | 'active'
- *	- adds support for type converter functions like "int()"
- *	- adds pseudo primitive type "color"
- *	- adds HTML hex notation with hash symbol: #ff5522
+ *  - changes main entry point to reflect sketch types 'static' | 'active'
+ *  - adds support for type converter functions like "int()"
+ *  - adds pseudo primitive type "color"
+ *  - adds HTML hex notation with hash symbol: #ff5522
  *     - allow color to appear as part of qualified names (like in imports)
  */
 
 grammar Processing;
 
 @lexer::members {
-	public static final int WHITESPACE = 1;
-	public static final int COMMENTS = 2;
+  public static final int WHITESPACE = 1;
+  public static final int COMMENTS = 2;
 }
 
 // import Java grammar
@@ -20,45 +20,45 @@ import JavaParser;
 
 // main entry point, select sketch type
 processingSketch
-    :   javaProcessingSketch
-    |   staticProcessingSketch
-    |   activeProcessingSketch
-    |   warnMixedModes
+    : javaProcessingSketch
+    | staticProcessingSketch
+    | activeProcessingSketch
+    | warnMixedModes
     ;
 
 // java mode, is a compilation unit
 javaProcessingSketch
-    :   packageDeclaration? importDeclaration* typeDeclaration+ EOF
+    : packageDeclaration? importDeclaration* typeDeclaration+ EOF
     ;
 
 // No method declarations, just statements
 staticProcessingSketch
-    :   (importDeclaration | blockStatement)* EOF
+    : (importDeclaration | blockStatement)* EOF
     ;
 
 // active mode, has function definitions
 activeProcessingSketch
-	  :	  (importDeclaration | classBodyDeclaration)* EOF
-	  ;
+    : (importDeclaration | classBodyDeclaration)* EOF
+    ;
 
 // User incorrectly mixing modes. Included to allow for kind error message.
 warnMixedModes
-    :   (importDeclaration | classBodyDeclaration | blockStatement)* blockStatement classBodyDeclaration (importDeclaration | classBodyDeclaration | blockStatement)*
-    |   (importDeclaration | classBodyDeclaration | blockStatement)* classBodyDeclaration blockStatement (importDeclaration | classBodyDeclaration | blockStatement)*
+    : (importDeclaration | classBodyDeclaration | blockStatement)* blockStatement classBodyDeclaration (importDeclaration | classBodyDeclaration | blockStatement)*
+    | (importDeclaration | classBodyDeclaration | blockStatement)* classBodyDeclaration blockStatement (importDeclaration | classBodyDeclaration | blockStatement)*
     ;
 
 variableDeclaratorId
-    :   warnTypeAsVariableName
-    |   IDENTIFIER ('[' ']')*
+    : warnTypeAsVariableName
+    | IDENTIFIER ('[' ']')*
     ;
 
 // bug #93
 // https://github.com/processing/processing/issues/93
 // prevent from types being used as variable names
 warnTypeAsVariableName
-    :   primitiveType ('[' ']')* {
-            notifyErrorListeners("Type names are not allowed as variable names: "+$primitiveType.text);
-        }
+    : primitiveType ('[' ']')* {
+        notifyErrorListeners("Type names are not allowed as variable names: "+$primitiveType.text);
+      }
     ;
 
 // catch special API function calls that we are interested in
@@ -72,30 +72,30 @@ methodCall
 // these are primitive type names plus "()"
 // "color" is a special Processing primitive (== int)
 functionWithPrimitiveTypeName
-	:	(	'boolean'
-    |	'byte'
-    |	'char'
-    |	'float'
-    |	'int'
-        |   'color'
-    ) '(' expressionList? ')'
-	;
+    : (  'boolean'
+      |  'byte'
+      |  'char'
+      |  'float'
+      |  'int'
+      |  'color'
+      ) '(' expressionList? ')'
+    ;
 
 // adding support for "color" primitive
 primitiveType
-	  :   BOOLEAN
-    |   CHAR
-    |   BYTE
-    |   SHORT
-    |   INT
-    |   LONG
-    |   FLOAT
-    |   DOUBLE
-	  |   colorPrimitiveType
-	  ;
+    : BOOLEAN
+    | CHAR
+    | BYTE
+    | SHORT
+    | INT
+    | LONG
+    | FLOAT
+    | DOUBLE
+    | colorPrimitiveType
+    ;
 
 colorPrimitiveType
-    :   'color'
+    : 'color'
     ;
 
 qualifiedName
@@ -116,27 +116,29 @@ literal
 // As parser rule so this produces a separate listener
 // for us to alter its value.
 hexColorLiteral
-	  :	HexColorLiteral
-	  ;
+    : HexColorLiteral
+    ;
 
 // add color literal notations for
 // #ff5522
 HexColorLiteral
-	  :	'#' (HexDigit HexDigit)? HexDigit HexDigit HexDigit HexDigit HexDigit HexDigit
-	  ;
+    : '#' (HexDigit HexDigit)? HexDigit HexDigit HexDigit HexDigit HexDigit HexDigit
+    ;
 
 
 // hide but do not remove whitespace and comments
 
-WS  :  [ \t\r\n\u000C]+ -> channel(1)
+WS  : [ \t\r\n\u000C]+ -> channel(1)
     ;
 
 COMMENT
-    :   '/*' .*? '*/' -> channel(2)
+    : '/*' .*? '*/' -> channel(2)
     ;
 
 LINE_COMMENT
-    :   '//' ~[\r\n]* -> channel(2)
+    : '//' ~[\r\n]* -> channel(2)
     ;
 
-CHAR_LITERAL:       '\'' (~['\\\r\n] | EscapeSequence)* '\''; // A bit nasty but let JDT tackle invalid chars
+CHAR_LITERAL
+    : '\'' (~['\\\r\n] | EscapeSequence)* '\''  // A bit nasty but let JDT tackle invalid chars
+		;