Template String: Change interpolation to remove '$' sign

Author: CallumDev

src/MoonSharp.Interpreter/Tree/Lexer/Lexer.cs

@@ -646,9 +646,8 @@ Token ReadTemplateString(int fromLine, int fromCol, bool isStart)
 						goto redo_Loop;
 					}
 				}
-				else if (c == '$' && CursorMatches("${"))
+				else if (c == '{')
 				{
-					CursorCharNext();
 					CursorCharNext();
 					Token t = CreateToken(TokenType.String_TemplateFragment, fromLine, fromCol);
 					t.Text = LexerUtils.UnescapeLuaString(t, text.ToString());

src/MoonSharp.Tests/EndToEnd/CSyntaxTests.cs

@@ -441,7 +441,7 @@ public void LengthPropertyReadonly()
         [Test]
         public void NestedStringTemplate()
         {
-            TestScript.Run(@"assert.areequal('hello', ``${``hello``}``);", s => s.Options.Syntax = ScriptSyntax.CLike);
+            TestScript.Run(@"assert.areequal('hello', ``{``hello``}``);", s => s.Options.Syntax = ScriptSyntax.CLike);
         }
 
         [Test]
@@ -454,14 +454,14 @@ public void EscapeStringTemplate()
         public void StringTemplate()
         {
             TestScript.Run(@"
-            assert.areequal('3', ``${3}``);
+            assert.areequal('3', ``{3}``);
             function getFirst(tbl) { return tbl[1]; }
-            assert.areequal('hello', ``${ //4
+            assert.areequal('hello', ``{ //4
                 getFirst({ //5
                      'hello' //6
                 }) //7
             }``);
-            assert.areequal('hello world', ``${'hello'} ${'world'}``);
+            assert.areequal('hello world', ``{'hello'} {'world'}``);
             ", s => s.Options.Syntax = ScriptSyntax.CLike);
         }