#201 - update lex

Author: Stepami

src/Domain/HydraScript.Domain.Constants/TokenTypes.cs

@@ -26,7 +26,7 @@ public static IEnumerable<Dto> Stream
 
             yield return new(
                 Tag: "Ident",
-                Pattern: "[a-zA-Z][a-zA-Z0-9]*",
+                Pattern: "[a-zA-Z][a-zA-Z0-9_]*",
                 Priority: 50);
 
             yield return new(
@@ -69,7 +69,7 @@ public static IEnumerable<Dto> Stream
 
             yield return new(
                 Tag: "Operator",
-                Pattern: "[+]{1,2}|[-]|[*]|[/]|[%]|([!]|[=])[=]|([<]|[>])[=]?|[!]|[|]{2}|[&]{2}|[~]|[:]{2}",
+                Pattern: "[+]{1,2}|[-]|[*]|[/]|[%]|([!]|[=])[=]|([<]|[>])[=]?|[!]|[|]{2}|[&]{2}|[~]|[:]{2}|[$]",
                 Priority: 13);
 
             yield return new(

src/Domain/HydraScript.Domain.FrontEnd/Parser/grammar.txt

@@ -41,7 +41,7 @@ EqExpression -> RelExpression (('=='|'!=') RelExpression)*
 RelExpression -> AddExpression (('<'|'>'|'<='|'>=') AddExpression)*
 AddExpression -> MulExpression (('+'|'-') MulExpression)*
 MulExpression -> UnaryExpression (('*'|'/'|'%'|'++'|'::') UnaryExpression)*
-UnaryExpression -> LeftHandSideExpression | ('-'|'!'|'~') UnaryExpression
+UnaryExpression -> LeftHandSideExpression | ('-'|'!'|'~'|'$') UnaryExpression
 
 PrimaryExpression -> "Ident" | Literal | '(' Expression ')' | ObjectLiteral | ArrayLiteral
 Literal -> "NullLiteral"

tests/HydraScript.UnitTests/Domain/FrontEnd/LexerData.cs

@@ -14,7 +14,7 @@ public sealed class LexerFailData : TheoryData<string>
 {
     public LexerFailData()
     {
-        Add("a + v $$$");
+        Add("a + v ```");
         Add("kkk &");
         Add("|| |");
     }