public function case_is_char_printable()
{
$this->when($result = LUT::isCharPrintable(LUT::fromCode(0x7f)))->then->boolean($result)->isFalse()->when($result = LUT::isCharPrintable(LUT::fromCode(0xa0)))->then->boolean($result)->isTrue()->when($result = LUT::isCharPrintable(LUT::fromCode(0x1100)))->then->boolean($result)->isTrue();
}
/**
* Readline core.
*
* @param string $char Char.
* @return string
*/
public function _readLine($char)
{
if (isset($this->_mapping[$char]) && is_callable($this->_mapping[$char])) {
$mapping = $this->_mapping[$char];
return $mapping($this);
}
if (isset($this->_mapping[$char])) {
$this->_buffer = $this->_mapping[$char];
} elseif (false === Ustring::isCharPrintable($char)) {
Console\Cursor::bip();
return static::STATE_CONTINUE | static::STATE_NO_ECHO;
}
if ($this->getLineLength() == $this->getLineCurrent()) {
$this->appendLine($this->_buffer);
return static::STATE_CONTINUE;
}
$this->insertLine($this->_buffer);
$tail = mb_substr($this->getLine(), $this->getLineCurrent() - 1);
$this->_buffer = "[K" . $tail . str_repeat("[D", mb_strlen($tail) - 1);
return static::STATE_CONTINUE;
}
