fstring_enc_new

* string.c (rb_fstring_enc_new, rb_fstring_enc_cstr): functions to
  make fstring with encoding.
* re.c (rb_reg_initialize): make fstring without copying.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53736 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 14 insertions, 0 deletions

diff --git a/string.c b/string.c
index b6de5f2b1b..e4a02eb5cd 100644
--- a/string.c
+++ b/string.c
@@ -49,6 +49,7 @@
 #undef rb_str_cat2
 #undef rb_str_cat_cstr
 #undef rb_fstring_cstr
+#undef rb_fstring_enc_cstr
 
 static VALUE rb_str_clear(VALUE str);
 
@@ -360,11 +361,24 @@ rb_fstring_new(const char *ptr, long len)
 }
 
 VALUE
+rb_fstring_enc_new(const char *ptr, long len, rb_encoding *enc)
+{
+    struct RString fake_str;
+    return register_fstring(rb_setup_fake_str(&fake_str, ptr, len, enc));
+}
+
+VALUE
 rb_fstring_cstr(const char *ptr)
 {
     return rb_fstring_new(ptr, strlen(ptr));
 }
 
+VALUE
+rb_fstring_enc_cstr(const char *ptr, rb_encoding *enc)
+{
+    return rb_fstring_enc_new(ptr, strlen(ptr), enc);
+}
+
 static int
 fstring_set_class_i(st_data_t key, st_data_t val, st_data_t arg)
 {