/**
* @brief Read a line, optionally setting the completer
*
* @param string $prompt The prompt to display
* @param ReadlineAutoCompleter $completer The completer instance
* @param boolean $autohistory Add command to history automatically (default is false)
*/
static function read($prompt = null, ReadlineAutoCompleter $completer = null, $autohistory = false)
{
$oldcompleter = null;
// If we got an autocompleter, assign it
if ($completer) {
// Save a copy of the old completer if any
if (self::$completer && $completer !== self::$completer) {
$oldcompleter = self::$completer;
}
// Assign and set up the proxy call
self::$completer = $completer;
readline_completion_function(array('Readline', '_rlAutoCompleteProxy'));
}
// Read the line
$ret = readline($prompt);
// Restore old completer (if any) and add the command to the history
// if autohistory is enabled.
if ($oldcompleter) {
self::$completer = $oldcompleter;
}
if ($autohistory) {
self::addHistory($ret);
}
return $ret;
}
public function bindNewLine(Readline $self)
{
$self->addHistory($self->getLine());
return $self::READ_BREAK;
}
static function setAutoCompleteHandler($ac)
{
self::$autocompleter = $ac;
}
/**
* Tab binding.
*
* @access public
* @param \Hoa\Console\Readline $self Self.
* @return int
*/
public function _bindTab(Readline $self)
{
$autocompleter = $self->getAutocompleter();
$state = static::STATE_CONTINUE | static::STATE_NO_ECHO;
if (null === $autocompleter) {
return $state;
}
$current = $self->getLineCurrent();
$line = $self->getLine();
if (0 === $current) {
return $state;
}
$matches = preg_match_all('#' . $autocompleter->getWordDefinition() . '#u', $line, $words, PREG_OFFSET_CAPTURE);
if (0 === $matches) {
return $state;
}
for ($i = 0, $max = count($words[0]); $i < $max && $current > $words[0][$i][1]; ++$i) {
}
$word = $words[0][$i - 1];
if ('' === trim($word[0])) {
return $state;
}
$prefix = mb_substr($word[0], 0, $current - $word[1]);
$solution = $autocompleter->complete($prefix);
$length = mb_strlen($prefix);
if (null === $solution) {
return $state;
}
if (is_array($solution)) {
$_solution = $solution;
$count = count($_solution) - 1;
$cWidth = 0;
$window = \Hoa\Console\Window::getSize();
$wWidth = $window['x'];
$cursor = \Hoa\Console\Cursor::getPosition();
array_walk($_solution, function (&$value) use(&$cWidth) {
$handle = mb_strlen($value);
if ($handle > $cWidth) {
$cWidth = $handle;
}
return;
});
array_walk($_solution, function (&$value) use(&$cWidth) {
$handle = mb_strlen($value);
if ($handle >= $cWidth) {
return;
}
$value .= str_repeat(' ', $cWidth - $handle);
return;
});
$mColumns = (int) floor($wWidth / ($cWidth + 2));
$mLines = (int) ceil(($count + 1) / $mColumns);
--$mColumns;
$i = 0;
if (0 > $window['y'] - $cursor['y'] - $mLines) {
\Hoa\Console\Window::scroll('↑', $mLines);
\Hoa\Console\Cursor::move('↑', $mLines);
}
\Hoa\Console\Cursor::save();
\Hoa\Console\Cursor::hide();
\Hoa\Console\Cursor::move('↓ LEFT');
\Hoa\Console\Cursor::clear('↓');
foreach ($_solution as $j => $s) {
echo "[0m", $s, "[0m";
if ($i++ < $mColumns) {
echo ' ';
} else {
$i = 0;
if (isset($_solution[$j + 1])) {
echo "\n";
}
}
}
\Hoa\Console\Cursor::restore();
\Hoa\Console\Cursor::show();
++$mColumns;
$read = array(STDIN);
$mColumn = -1;
$mLine = -1;
$coord = -1;
$unselect = function () use(&$mColumn, &$mLine, &$coord, &$_solution, &$cWidth) {
\Hoa\Console\Cursor::save();
\Hoa\Console\Cursor::hide();
\Hoa\Console\Cursor::move('↓ LEFT');
\Hoa\Console\Cursor::move('→', $mColumn * ($cWidth + 2));
\Hoa\Console\Cursor::move('↓', $mLine);
echo "[0m" . $_solution[$coord] . "[0m";
\Hoa\Console\Cursor::restore();
\Hoa\Console\Cursor::show();
return;
};
$select = function () use(&$mColumn, &$mLine, &$coord, &$_solution, &$cWidth) {
\Hoa\Console\Cursor::save();
\Hoa\Console\Cursor::hide();
\Hoa\Console\Cursor::move('↓ LEFT');
\Hoa\Console\Cursor::move('→', $mColumn * ($cWidth + 2));
\Hoa\Console\Cursor::move('↓', $mLine);
echo "[7m" . $_solution[$coord] . "[0m";
\Hoa\Console\Cursor::restore();
\Hoa\Console\Cursor::show();
return;
};
$init = function () use(&$mColumn, &$mLine, &$coord, &$select) {
$mColumn = 0;
$mLine = 0;
$coord = 0;
$select();
return;
};
while (true) {
@stream_select($read, $write, $except, 30, 0);
if (empty($read)) {
$read = array(STDIN);
continue;
}
switch ($char = $self->_read()) {
case "[A":
if (-1 === $mColumn && -1 === $mLine) {
$init();
break;
}
$unselect();
$coord = max(0, $coord - $mColumns);
$mLine = (int) floor($coord / $mColumns);
$mColumn = $coord % $mColumns;
$select();
break;
case "[B":
if (-1 === $mColumn && -1 === $mLine) {
$init();
break;
}
$unselect();
$coord = min($count, $coord + $mColumns);
$mLine = (int) floor($coord / $mColumns);
$mColumn = $coord % $mColumns;
$select();
break;
case "\t":
case "[C":
if (-1 === $mColumn && -1 === $mLine) {
$init();
break;
}
$unselect();
$coord = min($count, $coord + 1);
$mLine = (int) floor($coord / $mColumns);
$mColumn = $coord % $mColumns;
$select();
break;
case "[D":
if (-1 === $mColumn && -1 === $mLine) {
$init();
break;
}
$unselect();
$coord = max(0, $coord - 1);
$mLine = (int) floor($coord / $mColumns);
$mColumn = $coord % $mColumns;
$select();
break;
case "\n":
if (-1 !== $mColumn && -1 !== $mLine) {
$tail = mb_substr($line, $current);
$current -= $length;
$self->setLine(mb_substr($line, 0, $current) . $solution[$coord] . $tail);
$self->setLineCurrent($current + mb_strlen($solution[$coord]));
\Hoa\Console\Cursor::move('←', $length);
echo $solution[$coord];
\Hoa\Console\Cursor::clear('→');
echo $tail;
\Hoa\Console\Cursor::move('←', mb_strlen($tail));
}
default:
$mColumn = -1;
$mLine = -1;
$coord = -1;
\Hoa\Console\Cursor::save();
\Hoa\Console\Cursor::move('↓ LEFT');
\Hoa\Console\Cursor::clear('↓');
\Hoa\Console\Cursor::restore();
if ("" !== $char && "\n" !== $char) {
$self->setBuffer($char);
return $self->_readLine($char);
}
break 2;
}
}
return $state;
}
$tail = mb_substr($line, $current);
$current -= $length;
$self->setLine(mb_substr($line, 0, $current) . $solution . $tail);
$self->setLineCurrent($current + mb_strlen($solution));
\Hoa\Console\Cursor::move('←', $length);
echo $solution;
\Hoa\Console\Cursor::clear('→');
echo $tail;
\Hoa\Console\Cursor::move('←', mb_strlen($tail));
return $state;
}
protected function getWord(Readline $readline)
{
return $readline->getBuffer();
}
