416 lines
12 KiB
PHP
416 lines
12 KiB
PHP
<?php
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namespace NoccyLabs\FakeTerm;
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use NoccyLabs\TermBuf\Renderer\GdRenderer;
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use NoccyLabs\TermBuf\Renderer\TerminalRenderer;
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use NoccyLabs\TermBuf\TerminalBuffer;
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class FakeTerminal
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{
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/** @var TerminalBuffer */
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private $term;
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/** @var GdRenderer */
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private $renderer;
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private $subs = [];
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private $execMode = null;
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private $execTarget = null;
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private $typeDelay = 100;
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private $typeJitter = 0;
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private $elapsedMs = 0;
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private $fps = 0;
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private $frame = 0;
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private $frameDuration = 0;
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private $output;
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private $bookmarks = [];
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private $outputVideo = null;
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private $writtenFiles = [];
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public function __construct()
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{
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$this->renderer = new GdRenderer();
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$this->dumper = new TerminalRenderer();
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}
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public function setOutput(string $output)
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{
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$this->output = $output;
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}
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public function setOutputVideo(string $outputVideo)
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{
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$this->outputVideo = $outputVideo;
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}
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public function executeFile(string $filename)
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{
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$fp = fopen($filename, "r");
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$lc = 0;
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while (!feof($fp)) {
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$lc++;
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$ln = trim(fgets($fp));
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if ("" == $ln || $ln[0] == "#") continue;
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$lb = str_getcsv($ln, " ");
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try {
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$this->evaluate($lb);
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}
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catch (\Throwable $t) {
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fprintf(STDERR, "Error executing %s line %d: %s\n", $filename, $lc, $t->getMessage());
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}
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}
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echo "\r\e[K";
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if ($this->outputVideo) {
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fprintf(STDERR, "Converting %s → %s\n", $this->output, $this->outputVideo);
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passthru(sprintf("ffmpeg -v error -r %d -i %s -y %s", $this->fps, $this->output, $this->outputVideo));
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fprintf(STDERR, "Cleaning up %d files...\n", count($this->writtenFiles));
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foreach ($this->writtenFiles as $fn) {
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unlink($fn);
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}
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}
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}
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public function evaluate(array $data)
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{
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if ($this->execMode == "sub") {
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if ($data[0] == "endsub") {
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$this->execMode = null;
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$this->execTarget = null;
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return;
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}
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$this->subs[$this->execTarget]->sub[] = $data;
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return;
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}
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$args = $data;
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$cmd = array_shift($args);
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switch ($cmd) {
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case 'set':
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$prop = array_shift($args);
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$value = array_shift($args);
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$this->setProp($prop, $value);
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break;
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case 'sub':
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$subname = array_shift($args);
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$subargs = $args;
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$this->subs[$subname] = (object)[
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'sub' => [],
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'args' => $subargs
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];
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$this->execMode = "sub";
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$this->execTarget = $subname;
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break;
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case 'log':
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echo "log: ";
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echo join("", $args);
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echo "\n";
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break;
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case 'write':
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$this->writeTerm($args);
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break;
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case 'type':
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$this->writeTerm($args, true);
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break;
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case 'writefile':
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$file = file(array_shift($args));
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$delay = intval(array_shift($args)??30);
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foreach ($file as $line) {
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$this->writeTerm([ $line ]);
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$this->delayMs($delay);
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}
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break;
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case 'delay':
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$delay = intval(array_shift($args));
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$this->delayMs($delay);
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break;
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case 'savepng':
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$name = array_shift($args);
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$this->writeFrame($name);
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break;
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case 'mark':
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$id = array_shift($args);
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$this->bookmarks[$id] = $this->term->getCursorPosition();
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break;
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case 'moveto':
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$id = array_shift($args);
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if (ctype_digit($id)) {
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$line = $id;
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$column = array_shift($args);
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} else {
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if (!array_key_exists($id, $this->bookmarks)) break;
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[$line, $column] = $this->bookmarks[$id];
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}
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$this->term->setCursor($line, $column);
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break;
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case 'annotate':
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$id = array_shift($args);
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if ($id[0] != "@") {
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$text = $id;
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$id = uniqid();
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} else {
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$text = array_shift($args);
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}
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$line = array_shift($args);
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$column = array_shift($args);
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if ($line == "here" || $line == null) {
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[$line,$column] = $this->term->getCursorPosition();
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} elseif ($line == "at") {
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$bmid = $column;
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[$line,$column] = array_key_exists($bmid, $this->bookmarks) ? $this->bookmarks[$bmid] : [0,0];
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}
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$this->renderer->addAnnotation($id, $line, $column, $text);
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break;
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case 'unannotate':
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$id = array_shift($args);
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$this->renderer->removeAnnotation($id);
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break;
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case 'clearannotate':
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$this->renderer->clearAnnotations();
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break;
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case 'annotatelength':
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$id = array_shift($args);
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$this->renderer->updateAnnotation($id, [ 'length' => intval(array_shift($args))]);
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break;
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default:
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if (array_key_exists($cmd, $this->subs)) {
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$this->callSub($cmd, $args);
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return;
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}
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throw new \LogicException("No such command ${cmd}");
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}
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}
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public function writeFrame($name=null)
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{
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$this->renderer->render($this->term);
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if ($name) {
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$this->renderer->writePng($name);
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return;
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}
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$file = sprintf($this->output, $this->frame++);
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$this->renderer->writePng($file);
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//$this->dumper->render($this->term);
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//printf("\e[0m\rwrite: \e[1m%s\e[0m", $file);
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$this->writtenFiles[] = $file;
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}
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public function setFps(float $fps)
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{
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$this->fps = $fps;
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if ($fps > 0) {
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$this->frameDuration = 1000 / $fps;
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}
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}
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public function delayMs(int $ms)
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{
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if ($this->fps == 0) return;
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$this->elapsedMs += $ms;
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$lastFrameMs = $this->frame * $this->frameDuration;
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$nextFrameMs = $lastFrameMs + $this->frameDuration;
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while ($this->elapsedMs >= $nextFrameMs) {
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$this->writeFrame();
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$nextFrameMs += $this->frameDuration;
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}
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}
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public function writeTerm(array $args, bool $type=false)
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{
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//printf("write: %s\n", json_encode($args));
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$buf = null;
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while (count($args)) {
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$arg = array_shift($args);
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if ($arg[0] == "<" && strlen($arg) > 1) {
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if (substr($arg, -1, 1) == ">") {
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$this->setupTerm(substr($arg, 1, -1));
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continue;
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}
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$buf = [ $arg ];
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while ($tail = array_shift($args)) {
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$buf[] = $tail;
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if (substr($tail, -1, 1) == ">") {
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break;
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}
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}
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$buf = join(" ", $buf);
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$this->setupTerm(substr($buf, 1, -1));
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$buf = null;
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} elseif (preg_match('/u\{([0-9a-f]+)\}/', $arg, $match)) {
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$arg = mb_chr(hexdec($match[1]));
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//printf("write: '%s'\n", $arg);
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if (!$type) {
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$this->term->write($arg);
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} else {
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for ($c = 0; $c < mb_strlen($arg); $c++) {
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$this->term->write(mb_substr($arg, $c, 1));
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$this->delayMs($this->typeDelay + rand(-$this->typeJitter,$this->typeJitter));
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}
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}
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} else {
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//printf("write: '%s'\n", $arg);
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if (!$type) {
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$this->term->write($arg);
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} else {
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for ($c = 0; $c < mb_strlen($arg); $c++) {
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$this->term->write(mb_substr($arg, $c, 1));
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$this->delayMs($this->typeDelay + rand(-$this->typeJitter,$this->typeJitter));
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}
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}
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}
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}
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}
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public function setupTerm(string $prop) {
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$props = explode(" ", $prop);
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$mode = array_shift($props);
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switch ($mode) {
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case 'home':
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$this->term->setCursor($this->term->getCursorPosition()[0], 0);
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break;
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case 'return':
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$this->term->setCursor($this->term->getCursorPosition()[0] + 1, 0);
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break;
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case 'move':
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// move [steps] <dir>
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// dir = { up, down, left, right }
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case 'erase':
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// erase <to>
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// to = { screen, to-eol, to-bol, to-top, to-bottom }
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break;
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case 'sgr':
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$sgr = [ 0 ];
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while ($k = array_shift($props)) {
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if (strpos($k, ":")!==false) {
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[$k,$v] = explode(":", $k, 2);
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} else {
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$v = true;
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}
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switch ($k) {
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case 'bold':
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$sgr[] = 1;
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break;
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case 'fg':
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$sgr[] = 30 + $this->colorToIndex($v);
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break;
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case 'bg':
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$sgr[] = 40 + $this->colorToIndex($v);
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break;
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default:
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fprintf(STDERR, "Unknown attribute: %s\n", $k);
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}
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}
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// printf("sgr: %s\n", json_encode($sgr));
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$this->term->setAttributes($sgr);
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break;
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}
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}
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private function colorToIndex(string $color):int {
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switch ($color) {
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case 'black': return 0;
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case 'red': return 1;
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case 'green': return 2;
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case 'yellow': return 3;
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case 'blue': return 4;
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case 'magenta': return 5;
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case 'cyan': return 6;
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case 'white': return 7;
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}
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}
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public function callSub(string $sub, array $args=[])
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{
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foreach ($this->subs[$sub]->sub as $data) {
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foreach ($data as $k=>$v) {
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if ($v[0] == '$' && strlen($v) > 1) {
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$i = intval(substr($v, 1)) - 1;
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$data[$k] = array_key_exists($i, $args)?$args[$i]:"";
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}
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}
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$this->evaluate($data);
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}
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}
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public function setProp(string $prop, $value)
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{
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switch ($prop) {
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case 'terminal':
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[ $columns, $lines ] = explode("x", $value, 2);
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$this->setTerminalSize(intval($columns), intval($lines));
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break;
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case 'colors':
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$this->colors = intval($value);
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break;
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case 'typedelay':
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$this->typeDelay = intval($value);
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break;
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case 'typejitter':
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$this->typeJitter = intval($value);
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break;
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case 'fps':
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$this->setFps(floatval($value));
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break;
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case 'annotationsize':
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$this->annotationFontSize = intval($value);
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break;
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case 'video':
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$this->outputVideo = $value;
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break;
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default:
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throw new \LogicException("Bad property for set: ${prop}");
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}
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}
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public function setTerminalSize(int $columns, int $rows)
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{
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$this->term = new TerminalBuffer($columns, $rows);
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}
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} |