jscript: Improved error handling in numeric literal parser.

dlls/jscript/lex.c

@@ -454,6 +454,11 @@ static int parse_double_literal(parser_ctx_t *ctx, LONG int_part, literal_t **li
         else exp += e;
     }
 
+    if(is_identifier_char(*ctx->ptr)) {
+        WARN("wrong char after zero\n");
+        return lex_error(ctx, JS_E_MISSING_SEMICOLON);
+    }
+
     *literal = new_double_literal(ctx, exp>=0 ? d*pow(10, exp) : d/pow(10, -exp));
     return tNumericLiteral;
 }
@@ -477,7 +482,7 @@ static int parse_numeric_literal(parser_ctx_t *ctx, literal_t **literal)
 
             if(ctx->ptr < ctx->end && is_identifier_char(*ctx->ptr)) {
                 WARN("unexpected identifier char\n");
-                return lex_error(ctx, E_FAIL);
+                return lex_error(ctx, JS_E_MISSING_SEMICOLON);
             }
 
             *literal = new_double_literal(ctx, l);
@@ -512,9 +517,8 @@ static int parse_numeric_literal(parser_ctx_t *ctx, literal_t **literal)
 
         if(is_identifier_char(*ctx->ptr)) {
             WARN("wrong char after zero\n");
-            return lex_error(ctx, E_FAIL);
+            return lex_error(ctx, JS_E_MISSING_SEMICOLON);
         }
-
     }
 
     return parse_double_literal(ctx, l, literal);

dlls/jscript/tests/api.js

@@ -2357,6 +2357,13 @@ testSyntaxError("ok(false, 'unexpected execution'); while(true) continue some_la
 testSyntaxError("ok(false, 'unexpected execution'); some_label: { while(true) continue some_label; }", "E_INVALID_CONTINUE");
 testSyntaxError("ok(false, 'unexpected execution'); some_label: { some_label: while(true); }", "E_LABEL_REDEFINED");
 testSyntaxError("return;", "E_MISPLACED_RETURN");
+testSyntaxError("001.5;", "E_SEMICOLON");
+testSyntaxError("001.5", "E_SEMICOLON");
+testSyntaxError("0a", "E_SEMICOLON");
+testSyntaxError("01a", "E_SEMICOLON");
+testSyntaxError("0x1r", "E_SEMICOLON");
+testSyntaxError("1a", "E_SEMICOLON");
+testSyntaxError("1_", "E_SEMICOLON");
 
 // ReferenceError tests
 testException(function() {test = function() {}}, "E_ILLEGAL_ASSIGN");