[engine][VELOCITY-917] Preliminary work for VTL chars config: parametrize code using target chars

git-svn-id: https://svn.apache.org/repos/asf/velocity/engine/branches/parser_experiments@1860461 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 43 insertions, 13 deletions

diff --git a/velocity-engine-core/src/main/java/org/apache/velocity/runtime/RuntimeConstants.java b/velocity-engine-core/src/main/java/org/apache/velocity/runtime/RuntimeConstants.java
index 27782632..545e8f08 100644
--- a/velocity-engine-core/src/main/java/org/apache/velocity/runtime/RuntimeConstants.java
+++ b/velocity-engine-core/src/main/java/org/apache/velocity/runtime/RuntimeConstants.java
@@ -367,22 +367,10 @@ public interface RuntimeConstants extends DeprecatedRuntimeConstants
 
     /*
      * ----------------------------------------------------------------------
-     * G E N E R A L  R U N T I M E  C O N F I G U R A T I O N
+     * P A R S E R  C O N F I G U R A T I O N
      * ----------------------------------------------------------------------
      */
 
-    /** Whether to use string interning. */
-    String RUNTIME_STRING_INTERNING = "runtime.string_interning";
-    
-    /** Switch for the interpolation facility for string literals. */
-    String INTERPOLATE_STRINGLITERALS = "runtime.interpolate_string_literals";
-
-    /** Switch for ignoring nulls in math equations vs throwing exceptions. */
-    String STRICT_MATH = "runtime.strict_math";
-
-    /** Key upon which a context should be accessible within itself */
-    String CONTEXT_AUTOREFERENCE_KEY = "context.self_reference_key";
-
     /**
      * The <code>parser.pool.class</code> property specifies the name of the {@link org.apache.velocity.util.SimplePool}
      * implementation to use.
@@ -401,6 +389,48 @@ public interface RuntimeConstants extends DeprecatedRuntimeConstants
     String PARSER_HYPHEN_ALLOWED = "parser.allow_hyphen_in_identifiers";
 
     /**
+     * Set the character (onlysingle byte UTF-8 supported at present) to use instead of '$' for references.
+     * @since 2.2
+     */
+    String PARSER_DOLLAR = "parser.character.dollar";
+
+    /**
+     * Set the character (onlysingle byte UTF-8 supported at present) to use instead of '#' for directives, macros and comments.
+     * @since 2.2
+     */
+    String PARSER_HASH = "parser.character.hash";
+
+    /**
+     * Set the character (onlysingle byte UTF-8 supported at present) to use instead of '@' for '#@' block macros.
+     * @since 2.2
+     */
+    String PARSER_AROBASE = "parser.character.arobase";
+
+    /**
+     * Set the character (onlysingle byte UTF-8 supported at present) to use instead of '*' for '#* *#' block comments.
+     * @since 2.2
+     */
+    String PARSER_STAR = "parser.character.star";
+
+    /*
+     * ----------------------------------------------------------------------
+     * G E N E R A L  R U N T I M E  C O N F I G U R A T I O N
+     * ----------------------------------------------------------------------
+     */
+
+    /** Whether to use string interning. */
+    String RUNTIME_STRING_INTERNING = "runtime.string_interning";
+    
+    /** Switch for the interpolation facility for string literals. */
+    String INTERPOLATE_STRINGLITERALS = "runtime.interpolate_string_literals";
+
+    /** Switch for ignoring nulls in math equations vs throwing exceptions. */
+    String STRICT_MATH = "runtime.strict_math";
+
+    /** Key upon which a context should be accessible within itself */
+    String CONTEXT_AUTOREFERENCE_KEY = "context.self_reference_key";
+
+    /**
      * Space gobbling mode
      * @since 2.0
      */