for (i in name.indices) {
    val c = name[i]
    require(c in '\u0021'..'\u007e') {
      "Unexpected char 0x${c.charCode()} at $i in header name: $name"
    }
  }
}

internal fun headersCheckValue(
  value: String,
  name: String,
) {
  for (i in value.indices) {
    val c = value[i]
    require(c == '\t' || c in '\u0020'..'\u007e') {
      "Unexpected char 0x${c.charCode()} at $i in $name value" +

\u0009 => \u0020
\u000A => \u0020
\u000B => \u0020
\u000C => \u0020
\u000D => \u0020
\u001C => \u0020
\u001D => \u0020
\u001E => \u0020
\u001F => \u0020
\u00A0 => \u0020
\u1680 => \u0020
\u180E => \u0020
\u2000 => \u0020
\u2001 => \u0020
\u2002 => \u0020
\u2003 => \u0020
\u2004 => \u0020
\u2005 => \u0020
\u2006 => \u0020
\u2007 => \u0020
\u2008 => \u0020
\u2009 => \u0020
\u200A => \u0020
\u200B => \u0020

    assertThat("_".map()).isEqualTo("_")
    assertThat("/".map()).isEqualTo("/")
    assertThat("≠".map()).isEqualTo("≠")
  }

  @Test fun disallowedStd3Mapped() {
    assertThat("\u00b8".map()).isEqualTo("\u0020\u0327")
    assertThat("⑴".map()).isEqualTo("(1)")
  }

  @Test fun outOfBounds() {
    assertFailsWith<IllegalArgumentException> {
      table.map(-1, Buffer())
    }

      "\u0001\u0000\u00a0\u0000\u0000\u0000\u0000\u0000"
          + "\u0000\u0009\n\u000b\u000c\r\u0000\u0000\u2028\u2029\u0000\u0000\u0000\u0000\u0000"
          + "\u202f\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0020\u0000\u0000\u0000\u0000"
          + "\u0000\u0000\u0000\u0000\u0000\u0000\u3000\u0000\u0000\u0000\u0000\u0000\u0000\u0000"
          + "\u0000\u0000\u0000\u0085\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009"