Added multiline comments

.gitignore

@@ -3,3 +3,4 @@ out/
 *.zip
 prg/**/*.ast
 prg/**/*.out
+prg/**/*.pins25

prg/test.pins25

@@ -1,10 +0,0 @@
-var i = 0
-
-fun main() =
-	until i >= 10 do
-		putint(i),
-		i = i + 1
-	end,
-	0
-
-fun putint(n)

src/pins25/common/Token.java

@@ -57,10 +57,6 @@ public record Token(Report.Location location, Symbol symbol, String lexeme) impl
          * Kljucna beseda {@code while}.
          */
         WHILE,
-        /**
-         * Kljucna beseda {@code until}.
-         */
-        UNTIL,
         /**
          * Kljucna beseda {@code do}.
          */

src/pins25/phase/LexAn.java

@@ -247,9 +247,38 @@ public class LexAn implements AutoCloseable {
                     return;
                 }
 
+                nextChar();
+                if (buffChar == '{') {
+                    int depth = 1;
+
+                    nextChar();
+                    while (depth > 0) {
+                        switch (buffChar) {
+                            case '}':
+                                nextChar();
+                                if (buffChar != '/') continue;
+                                nextChar();
+                                if (buffChar != '/') continue;
+                                depth--;
+                                break;
+                            case '/':
+                                nextChar();
+                                if (buffChar != '/') continue;
+                                nextChar();
+                                if (buffChar != '{') continue;
+                                depth++;
+                                break;
+                            case -1:
+                                throw new Report.Error(currentLocation(), "Unterminated multiline comment");
+                            default:
+                                nextChar();
+                        }
+                    }
+                } else {
                     while (buffChar != '\n' && buffChar != -1) {
                         nextChar();
                     }
+                }
 
                 nextToken();
                 return;
@@ -315,7 +344,6 @@ public class LexAn implements AutoCloseable {
             case "then" -> Token.Symbol.THEN;
             case "else" -> Token.Symbol.ELSE;
             case "while" -> Token.Symbol.WHILE;
-            case "until" -> Token.Symbol.UNTIL;
             case "do" -> Token.Symbol.DO;
             case "let" -> Token.Symbol.LET;
             case "in" -> Token.Symbol.IN;

src/pins25/phase/SynAn.java

@@ -227,21 +227,6 @@ public class SynAn implements AutoCloseable {
                 return whileStmt;
             }
 
-            case UNTIL: {
-                // statement -> until expression do statements end
-                Token untilT = check(Token.Symbol.UNTIL);
-                AST.Expr cond = parseExpression();
-                check(Token.Symbol.DO);
-                List<AST.Stmt> stmts = parseStatements();
-                Token end = check(Token.Symbol.END);
-
-                AST.Expr negCond = new AST.UnExpr(AST.UnExpr.Oper.NOT, cond);
-                
-                AST.WhileStmt whileStmt = new AST.WhileStmt(negCond, stmts);
-                attrLoc.put(whileStmt, new Report.Location(untilT, end));
-                return whileStmt;
-            }
-
             case LET: {
                 // statement -> let definition reststmtdefs in statements end
                 Token let = check(Token.Symbol.LET);