/*
 * call-seq:
 *   IDN::Stringprep.nameprep(string) => string
 *
 * Prepares a string in UTF-8 format according to the 'Nameprep'
 * profile.
 *
 * Raises IDN::Stringprep::StringprepError on failure.
 */

static VALUE nameprep(VALUE self, VALUE str)
{
  return stringprep_internal(str, "Nameprep");
}

/*
 * call-seq:
 *   IDN::Stringprep.nfkc_normalize(string) => string
 *
 * Converts a string in UTF-8 format into canonical form, standardizing
 * such issues as whether a character with an accent is represented as a
 * base character and combining accent or as a single precomposed character.
 */

static VALUE nfkc_normalize(VALUE self, VALUE str)
{
  char *buf;
  VALUE retv;

  str = rb_check_convert_type(str, T_STRING, "String", "to_s");
  buf = stringprep_utf8_nfkc_normalize(RSTRING(str)->ptr, RSTRING(str)->len);

  retv = rb_str_new2(buf);
  xfree(buf);
  return retv;
}

/*
 * call-seq:
 *   IDN::Stringprep.nodeprep(string) => string
 *
 * Prepares a string in UTF-8 format according to the 'Nodeprep'
 * profile.
 *
 * Raises IDN::Stringprep::StringprepError on failure.
 */

static VALUE nodeprep(VALUE self, VALUE str)
{
  return stringprep_internal(str, "Nodeprep");
}

/*
 * call-seq:
 *   IDN::Stringprep.resourceprep(string) => string
 *
 * Prepares a string in UTF-8 format according to the 'Resourceprep'
 * profile.
 *
 * Raises IDN::Stringprep::StringprepError on failure.
 */

static VALUE resourceprep(VALUE self, VALUE str)
{
  return stringprep_internal(str, "Resourceprep");
}

/*
 * call-seq:
 *   IDN::Stringprep.with_profile(string, profile) => string
 *
 * Prepares a string in UTF-8 format according to the given stringprep
 * profile name which must be one of the internally supported stringprep
 * profiles (for details see IANA's Profile Names in RFC3454).
 *
 * Raises IDN::Stringprep::StringprepError on failure.
 */

static VALUE with_profile(VALUE self, VALUE str, VALUE profile)
{
  profile = rb_check_convert_type(profile, T_STRING, "String", "to_s");
  return stringprep_internal(str, RSTRING(profile)->ptr);
}