/**
* 显示问题的提示信息
*/
protected function writePrompt()
{
$text = $this->question->getQuestion();
$default = $this->question->getDefault();
switch (true) {
case null === $default:
$text = sprintf(' <info>%s</info>:', $text);
break;
case $this->question instanceof Confirmation:
$text = sprintf(' <info>%s (yes/no)</info> [<comment>%s</comment>]:', $text, $default ? 'yes' : 'no');
break;
case $this->question instanceof Choice && $this->question->isMultiselect():
$choices = $this->question->getChoices();
$default = explode(',', $default);
foreach ($default as $key => $value) {
$default[$key] = $choices[trim($value)];
}
$text = sprintf(' <info>%s</info> [<comment>%s</comment>]:', $text, implode(', ', $default));
break;
case $this->question instanceof Choice:
$choices = $this->question->getChoices();
$text = sprintf(' <info>%s</info> [<comment>%s</comment>]:', $text, $choices[$default]);
break;
default:
$text = sprintf(' <info>%s</info> [<comment>%s</comment>]:', $text, $default);
}
$this->output->writeln($text);
if ($this->question instanceof Choice) {
$width = max(array_map('strlen', array_keys($this->question->getChoices())));
foreach ($this->question->getChoices() as $key => $value) {
$this->output->writeln(sprintf(" [<comment>%-{$width}s</comment>] %s", $key, $value));
}
}
$this->output->write(' > ');
}
/**
* 包装过程回调来添加调试输出
* @param Output $output
* @param ThinkProcess $process
* @param callable|null $callback
* @return callable
*/
public function wrapCallback(Output $output, ThinkProcess $process, $callback = null)
{
/** @var Debug $formatter */
$formatter = $this->getHelperSet()->get('debug_formatter');
return function ($type, $buffer) use($output, $process, $callback, $formatter) {
$output->write($formatter->progress(spl_object_hash($process), $this->escapeString($buffer), ThinkProcess::ERR === $type));
if (null !== $callback) {
call_user_func($callback, $type, $buffer);
}
};
}
/**
* 自动完成问题
* @param Output $output
* @param OutputQuestion $question
* @param $inputStream
* @return string
*/
private function autocomplete(Output $output, OutputQuestion $question, $inputStream)
{
$autocomplete = $question->getAutocompleterValues();
$ret = '';
$i = 0;
$ofs = -1;
$matches = $autocomplete;
$numMatches = count($matches);
$sttyMode = shell_exec('stty -g');
shell_exec('stty -icanon -echo');
$output->getFormatter()->setStyle('hl', new OutputFormatterStyle('black', 'white'));
while (!feof($inputStream)) {
$c = fread($inputStream, 1);
if ("" === $c) {
if (0 === $numMatches && 0 !== $i) {
$i--;
$output->write("[1D");
}
if ($i === 0) {
$ofs = -1;
$matches = $autocomplete;
$numMatches = count($matches);
} else {
$numMatches = 0;
}
$ret = substr($ret, 0, $i);
} elseif ("" === $c) {
$c .= fread($inputStream, 2);
if (isset($c[2]) && ('A' === $c[2] || 'B' === $c[2])) {
if ('A' === $c[2] && -1 === $ofs) {
$ofs = 0;
}
if (0 === $numMatches) {
continue;
}
$ofs += 'A' === $c[2] ? -1 : 1;
$ofs = ($numMatches + $ofs) % $numMatches;
}
} elseif (ord($c) < 32) {
if ("\t" === $c || "\n" === $c) {
if ($numMatches > 0 && -1 !== $ofs) {
$ret = $matches[$ofs];
$output->write(substr($ret, $i));
$i = strlen($ret);
}
if ("\n" === $c) {
$output->write($c);
break;
}
$numMatches = 0;
}
continue;
} else {
$output->write($c);
$ret .= $c;
$i++;
$numMatches = 0;
$ofs = 0;
foreach ($autocomplete as $value) {
if (0 === strpos($value, $ret) && $i !== strlen($value)) {
$matches[$numMatches++] = $value;
}
}
}
$output->write("[K");
if ($numMatches > 0 && -1 !== $ofs) {
$output->write("7");
$output->write('<hl>' . substr($matches[$ofs], $i) . '</hl>');
$output->write("8");
}
}
shell_exec(sprintf('stty %s', $sttyMode));
return $ret;
}
/**
* 输出内容
* @param string $content
* @param bool $decorated
*/
protected function write($content, $decorated = false)
{
$this->output->write($content, false, $decorated ? Output::OUTPUT_NORMAL : Output::OUTPUT_RAW);
}
