From a917d88909981508f5d7883cc0f7d5b92fe7d434 Mon Sep 17 00:00:00 2001
From: Sylwester Lachiewicz <slachiewicz@apache.org>
Date: Thu, 1 Jan 2026 18:17:08 +0100
Subject: [PATCH] Enhance whitespace handling in parser

Removes warnings generated by javacc plugin
---
 velocity-custom-parser-example/pom.xml          |  2 +-
 velocity-engine-core/src/main/parser/Parser.jjt | 12 ++++++------
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/velocity-custom-parser-example/pom.xml b/velocity-custom-parser-example/pom.xml
index 7c609b23e..652f1ca0f 100644
--- a/velocity-custom-parser-example/pom.xml
+++ b/velocity-custom-parser-example/pom.xml
@@ -148,7 +148,7 @@
                     <debugParser>${parser.debug}</debugParser>
                     <debugLookAhead>${parser.debug}</debugLookAhead>
                     <debugTokenManager>${parser.debug}</debugTokenManager>
-                    <jdkVersion>${maven.compiler.target}</jdkVersion>
+                    <jdkVersion>1.8</jdkVersion>
                     <nodeUsesParser>true</nodeUsesParser>
                     <nodePackage>${parser.package}.node</nodePackage>
                     <sourceDirectory>${project.build.directory}/parser/org/apache/velocity/runtime/parser</sourceDirectory>
diff --git a/velocity-engine-core/src/main/parser/Parser.jjt b/velocity-engine-core/src/main/parser/Parser.jjt
index 4e790735c..39e9521dd 100644
--- a/velocity-engine-core/src/main/parser/Parser.jjt
+++ b/velocity-engine-core/src/main/parser/Parser.jjt
@@ -1576,7 +1576,7 @@ boolean Statement(boolean afterNewline) #void :
 |   LOOKAHEAD( { getToken(1).kind == WORD || getToken(1).kind == BRACKETED_WORD || afterNewline && getToken(1).kind == WHITESPACE && ( getToken(2).kind == WORD || getToken(2).kind == BRACKETED_WORD ) } ) afterNewline = Directive(afterNewline) { return afterNewline; }
 |   afterNewline = Text() { return afterNewline; }
 |   (<NEWLINE>) #Text { return true; }
-|   (((<INLINE_TEXT>) { afterNewline = false; } ) ((<TEXT>) { afterNewline = true; })? ) #Text { return afterNewline; }
+|   (((<INLINE_TEXT>) { afterNewline = false; } ) (LOOKAHEAD(2) (<TEXT>) { afterNewline = true; })? ) #Text { return afterNewline; }
 |   (<WHITESPACE>) #Text { return false; }
 |   (<SUFFIX>) #Text { return true; }
 |   LOOKAHEAD(2) EndingZeroWidthWhitespace() { return afterNewline; }
@@ -2113,11 +2113,11 @@ void IntegerRange() : {}
  */
 void IndexParameter() #void: {}
 {
-    (<WHITESPACE>|<NEWLINE>)*
+    (LOOKAHEAD(2) (<WHITESPACE>|<NEWLINE>))*
         (
             Expression()
         )
-    (<WHITESPACE>|<NEWLINE>)*
+    (LOOKAHEAD(2) (<WHITESPACE>|<NEWLINE>))*
 }
 
 
@@ -2493,7 +2493,7 @@ void MultiplicativeExpression() #void : {}
 
 void UnaryExpression() #void : {}
 {
-    ( <WHITESPACE> | <NEWLINE> )*
+    (LOOKAHEAD(2) (<WHITESPACE> | <NEWLINE>))*
     (
           <LOGICAL_NOT>  UnaryExpression() #NotNode(1)
      |   <MINUS> PrimaryExpression() #NegateNode(1)
@@ -2503,7 +2503,7 @@ void UnaryExpression() #void : {}
 
 void PrimaryExpression() #void : {}
 {
-    ( <WHITESPACE> | <NEWLINE> )*
+    (LOOKAHEAD(2) (<WHITESPACE> | <NEWLINE>))*
     (
      StringLiteral()
     | Reference()
@@ -2516,7 +2516,7 @@ void PrimaryExpression() #void : {}
     | False()
     | <LPAREN>  Expression()  <RPAREN>
      )
-    ( <WHITESPACE> | <NEWLINE> )*
+    (LOOKAHEAD(2) (<WHITESPACE> | <NEWLINE>))*
 }
 
 /* ======================================================================