--- /dev/null
+<?php
+
+/*
+ * This file is part of Psy Shell.
+ *
+ * (c) 2012-2018 Justin Hileman
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Psy\Output;
+
+use Symfony\Component\Console\Formatter\OutputFormatterInterface;
+use Symfony\Component\Console\Formatter\OutputFormatterStyle;
+use Symfony\Component\Console\Output\ConsoleOutput;
+
+/**
+ * A ConsoleOutput subclass specifically for Psy Shell output.
+ */
+class ShellOutput extends ConsoleOutput
+{
+ const NUMBER_LINES = 128;
+
+ private $paging = 0;
+ private $pager;
+
+ /**
+ * Construct a ShellOutput instance.
+ *
+ * @param mixed $verbosity (default: self::VERBOSITY_NORMAL)
+ * @param bool $decorated (default: null)
+ * @param OutputFormatterInterface $formatter (default: null)
+ * @param null|string|OutputPager $pager (default: null)
+ */
+ public function __construct($verbosity = self::VERBOSITY_NORMAL, $decorated = null, OutputFormatterInterface $formatter = null, $pager = null)
+ {
+ parent::__construct($verbosity, $decorated, $formatter);
+
+ $this->initFormatters();
+
+ if ($pager === null) {
+ $this->pager = new PassthruPager($this);
+ } elseif (is_string($pager)) {
+ $this->pager = new ProcOutputPager($this, $pager);
+ } elseif ($pager instanceof OutputPager) {
+ $this->pager = $pager;
+ } else {
+ throw new \InvalidArgumentException('Unexpected pager parameter: ' . $pager);
+ }
+ }
+
+ /**
+ * Page multiple lines of output.
+ *
+ * The output pager is started
+ *
+ * If $messages is callable, it will be called, passing this output instance
+ * for rendering. Otherwise, all passed $messages are paged to output.
+ *
+ * Upon completion, the output pager is flushed.
+ *
+ * @param string|array|\Closure $messages A string, array of strings or a callback
+ * @param int $type (default: 0)
+ */
+ public function page($messages, $type = 0)
+ {
+ if (is_string($messages)) {
+ $messages = (array) $messages;
+ }
+
+ if (!is_array($messages) && !is_callable($messages)) {
+ throw new \InvalidArgumentException('Paged output requires a string, array or callback');
+ }
+
+ $this->startPaging();
+
+ if (is_callable($messages)) {
+ $messages($this);
+ } else {
+ $this->write($messages, true, $type);
+ }
+
+ $this->stopPaging();
+ }
+
+ /**
+ * Start sending output to the output pager.
+ */
+ public function startPaging()
+ {
+ $this->paging++;
+ }
+
+ /**
+ * Stop paging output and flush the output pager.
+ */
+ public function stopPaging()
+ {
+ $this->paging--;
+ $this->closePager();
+ }
+
+ /**
+ * Writes a message to the output.
+ *
+ * Optionally, pass `$type | self::NUMBER_LINES` as the $type parameter to
+ * number the lines of output.
+ *
+ * @throws \InvalidArgumentException When unknown output type is given
+ *
+ * @param string|array $messages The message as an array of lines or a single string
+ * @param bool $newline Whether to add a newline or not
+ * @param int $type The type of output
+ */
+ public function write($messages, $newline = false, $type = 0)
+ {
+ if ($this->getVerbosity() === self::VERBOSITY_QUIET) {
+ return;
+ }
+
+ $messages = (array) $messages;
+
+ if ($type & self::NUMBER_LINES) {
+ $pad = strlen((string) count($messages));
+ $template = $this->isDecorated() ? "<aside>%{$pad}s</aside>: %s" : "%{$pad}s: %s";
+
+ if ($type & self::OUTPUT_RAW) {
+ $messages = array_map(['Symfony\Component\Console\Formatter\OutputFormatter', 'escape'], $messages);
+ }
+
+ foreach ($messages as $i => $line) {
+ $messages[$i] = sprintf($template, $i, $line);
+ }
+
+ // clean this up for super.
+ $type = $type & ~self::NUMBER_LINES & ~self::OUTPUT_RAW;
+ }
+
+ parent::write($messages, $newline, $type);
+ }
+
+ /**
+ * Writes a message to the output.
+ *
+ * Handles paged output, or writes directly to the output stream.
+ *
+ * @param string $message A message to write to the output
+ * @param bool $newline Whether to add a newline or not
+ */
+ public function doWrite($message, $newline)
+ {
+ if ($this->paging > 0) {
+ $this->pager->doWrite($message, $newline);
+ } else {
+ parent::doWrite($message, $newline);
+ }
+ }
+
+ /**
+ * Flush and close the output pager.
+ */
+ private function closePager()
+ {
+ if ($this->paging <= 0) {
+ $this->pager->close();
+ }
+ }
+
+ /**
+ * Initialize output formatter styles.
+ */
+ private function initFormatters()
+ {
+ $formatter = $this->getFormatter();
+
+ $formatter->setStyle('warning', new OutputFormatterStyle('black', 'yellow'));
+ $formatter->setStyle('error', new OutputFormatterStyle('black', 'red', ['bold']));
+ $formatter->setStyle('aside', new OutputFormatterStyle('blue'));
+ $formatter->setStyle('strong', new OutputFormatterStyle(null, null, ['bold']));
+ $formatter->setStyle('return', new OutputFormatterStyle('cyan'));
+ $formatter->setStyle('urgent', new OutputFormatterStyle('red'));
+ $formatter->setStyle('hidden', new OutputFormatterStyle('black'));
+
+ // Visibility
+ $formatter->setStyle('public', new OutputFormatterStyle(null, null, ['bold']));
+ $formatter->setStyle('protected', new OutputFormatterStyle('yellow'));
+ $formatter->setStyle('private', new OutputFormatterStyle('red'));
+ $formatter->setStyle('global', new OutputFormatterStyle('cyan', null, ['bold']));
+ $formatter->setStyle('const', new OutputFormatterStyle('cyan'));
+ $formatter->setStyle('class', new OutputFormatterStyle('blue', null, ['underscore']));
+ $formatter->setStyle('function', new OutputFormatterStyle(null));
+ $formatter->setStyle('default', new OutputFormatterStyle(null));
+
+ // Types
+ $formatter->setStyle('number', new OutputFormatterStyle('magenta'));
+ $formatter->setStyle('string', new OutputFormatterStyle('green'));
+ $formatter->setStyle('bool', new OutputFormatterStyle('cyan'));
+ $formatter->setStyle('keyword', new OutputFormatterStyle('yellow'));
+ $formatter->setStyle('comment', new OutputFormatterStyle('blue'));
+ $formatter->setStyle('object', new OutputFormatterStyle('blue'));
+ $formatter->setStyle('resource', new OutputFormatterStyle('yellow'));
+ }
+}
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