Remove support for the Regexp.new 3rd argument

This was deprecated in Ruby 3.2.

Fixes [Bug #18797]

1 files changed, 2 insertions, 13 deletions

diff --git a/re.c b/re.c
index 2b79e8815b..1f362247a0 100644
--- a/re.c
+++ b/re.c
@@ -3912,10 +3912,10 @@ reg_extract_args(int argc, VALUE *argv, struct reg_init_args *args)
 {
     int flags = 0;
     rb_encoding *enc = 0;
-    VALUE str, src, opts = Qundef, n_flag = Qundef, kwargs;
+    VALUE str, src, opts = Qundef, kwargs;
     VALUE re = Qnil;
 
-    argc = rb_scan_args(argc, argv, "12:", &src, &opts, &n_flag, &kwargs);
+    rb_scan_args(argc, argv, "11:", &src, &opts, &kwargs);
 
     args->timeout = Qnil;
     if (!NIL_P(kwargs)) {
@@ -3926,10 +3926,6 @@ reg_extract_args(int argc, VALUE *argv, struct reg_init_args *args)
         rb_get_kwargs(kwargs, keywords, 0, 1, &args->timeout);
     }
 
-    if (argc == 3) {
-        rb_warn_deprecated_to_remove("3.3", "3rd argument to Regexp.new", "2nd argument");
-    }
-
     if (RB_TYPE_P(src, T_REGEXP)) {
         re = src;
 
@@ -3948,13 +3944,6 @@ reg_extract_args(int argc, VALUE *argv, struct reg_init_args *args)
             else if (!NIL_P(opts) && rb_bool_expected(opts, "ignorecase", FALSE))
                 flags = ONIG_OPTION_IGNORECASE;
         }
-        if (!NIL_OR_UNDEF_P(n_flag)) {
-            char *kcode = StringValuePtr(n_flag);
-            if (kcode[0] == 'n' || kcode[0] == 'N') {
-                enc = rb_ascii8bit_encoding();
-                flags |= ARG_ENCODING_NONE;
-            }
-        }
         str = StringValue(src);
     }
     args->str = str;