1 files changed, 74 insertions, 0 deletions
diff --git a/spec/ruby/optional/capi/ext/regexp_spec.c b/spec/ruby/optional/capi/ext/regexp_spec.c
new file mode 100644
index 0000000000..9de7982b50
--- /dev/null
+++ b/spec/ruby/optional/capi/ext/regexp_spec.c
@@ -0,0 +1,74 @@
+#include "ruby.h"
+#include "rubyspec.h"
+
+#include "ruby/re.h"
+
+#include <string.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+VALUE regexp_spec_re(VALUE self, VALUE str, VALUE options) {
+  char *cstr = StringValueCStr(str);
+  int opts = FIX2INT(options);
+  return rb_reg_new(cstr, strlen(cstr), opts);
+}
+
+VALUE regexp_spec_reg_1st_match(VALUE self, VALUE md) {
+  return rb_reg_nth_match(1, md);
+}
+
+VALUE regexp_spec_rb_reg_options(VALUE self, VALUE regexp) {
+  return INT2FIX(rb_reg_options(regexp));
+}
+
+VALUE regexp_spec_rb_reg_regcomp(VALUE self, VALUE str) {
+  return rb_reg_regcomp(str);
+}
+
+VALUE regexp_spec_reg_match(VALUE self, VALUE re, VALUE str) {
+  return rb_reg_match(re, str);
+}
+
+VALUE regexp_spec_backref_get(VALUE self) {
+  return rb_backref_get();
+}
+
+static VALUE regexp_spec_backref_set(VALUE self, VALUE backref) {
+  rb_backref_set(backref);
+  return Qnil;
+}
+
+VALUE regexp_spec_reg_match_backref_get(VALUE self, VALUE re, VALUE str) {
+  rb_reg_match(re, str);
+  return rb_backref_get();
+}
+
+VALUE regexp_spec_match(VALUE self, VALUE regexp, VALUE str) {
+  return rb_funcall(regexp, rb_intern("match"), 1, str);
+}
+
+VALUE regexp_spec_memcicmp(VALUE self, VALUE str1, VALUE str2) {
+  long l1 = RSTRING_LEN(str1);
+  long l2 = RSTRING_LEN(str2);
+  return INT2FIX(rb_memcicmp(RSTRING_PTR(str1), RSTRING_PTR(str2), l1 < l2 ? l1 : l2));
+}
+
+void Init_regexp_spec(void) {
+  VALUE cls = rb_define_class("CApiRegexpSpecs", rb_cObject);
+  rb_define_method(cls, "match", regexp_spec_match, 2);
+  rb_define_method(cls, "a_re", regexp_spec_re, 2);
+  rb_define_method(cls, "a_re_1st_match", regexp_spec_reg_1st_match, 1);
+  rb_define_method(cls, "rb_reg_match", regexp_spec_reg_match, 2);
+  rb_define_method(cls, "rb_backref_get", regexp_spec_backref_get, 0);
+  rb_define_method(cls, "rb_backref_set", regexp_spec_backref_set, 1);
+  rb_define_method(cls, "rb_reg_match_backref_get", regexp_spec_reg_match_backref_get, 2);
+  rb_define_method(cls, "rb_reg_options", regexp_spec_rb_reg_options, 1);
+  rb_define_method(cls, "rb_reg_regcomp", regexp_spec_rb_reg_regcomp, 1);
+  rb_define_method(cls, "rb_memcicmp", regexp_spec_memcicmp, 2);
+}
+
+#ifdef __cplusplus
+}
+#endif