115 lines
3.1 KiB
PHP
115 lines
3.1 KiB
PHP
<?php
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namespace Icinga\Cli;
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use Icinga\Cli\Screen;
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// @see http://en.wikipedia.org/wiki/ANSI_escape_code
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class AnsiScreen extends Screen
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{
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protected $fgColors = array(
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'black' => '30',
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'darkgray' => '1;30',
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'red' => '31',
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'lightred' => '1;31',
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'green' => '32',
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'lightgreen' => '1;32',
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'brown' => '33',
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'yellow' => '1;33',
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'blue' => '34',
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'lightblue' => '1;34',
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'purple' => '35',
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'lightpurple' => '1;35',
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'cyan' => '36',
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'lightcyan' => '1;36',
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'lightgray' => '37',
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'white' => '1;37',
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);
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protected $bgColors = array(
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'black' => '40',
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'red' => '41',
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'green' => '42',
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'brown' => '43',
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'blue' => '44',
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'purple' => '45',
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'cyan' => '46',
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'lightgray' => '47',
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);
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public function strlen($string)
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{
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return strlen($this->stripAnsiCodes($string));
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}
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public function stripAnsiCodes($string)
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{
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return preg_replace('/\e\[?.*?[\@-~]/', '', $string);
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}
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public function clear()
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{
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return "\033[2J" // Clear the whole screen
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. "\033[1;1H" // Move the cursor to row 1, column 1
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. "\033[1S"; // Scroll whole page up by 1 line (why?)
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}
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public function underline($text)
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{
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return "\033[4m"
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. $text
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. "\033[0m"; // Reset color codes
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}
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public function colorize($text, $fgColor = null, $bgColor = null)
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{
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return $this->startColor($fgColor, $bgColor)
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. $text
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. "\033[0m"; // Reset color codes
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}
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protected function fgColor($color)
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{
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if (! array_key_exists($color, $this->fgColors)) {
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throw new \Exception(sprintf('There is no such foreground color: %s', $color));
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}
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return $this->fgColors[$color];
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}
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protected function bgColor($color)
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{
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if (! array_key_exists($color, $this->bgColors)) {
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throw new \Exception(sprintf('There is no such background color: %s', $color));
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}
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return $this->bgColors[$color];
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}
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protected function startColor($fgColor = null, $bgColor = null)
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{
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$escape = "ESC[";
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$parts = array();
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if ($fgColor !== null
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&& $bgColor !== null
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&& ! array_key_exists($bgColor, $this->bgColors)
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&& array_key_exists($bgColor, $this->fgColors)
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&& array_key_exists($fgColor, $this->bgColors)
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) {
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$parts[] = '7'; // reverse video, negative image
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$parts[] = $this->bgColor($fgColor);
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$parts[] = $this->fgColor($bgColor);
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} else {
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if ($fgColor !== null) {
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$parts[] = $this->fgColor($fgColor);
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}
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if ($bgColor !== null) {
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$parts[] = $this->bgColor($bgColor);
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}
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}
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if (empty($parts)) {
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return '';
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}
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return "\033[" . implode(';', $parts) . 'm';
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}
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}
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