inlineStyles = $inlineStyles;
$this->charset = $charset;
$this->colorNames = array(
'black', 'red', 'green', 'yellow', 'blue', 'magenta', 'cyan', 'white',
'', '',
'brblack', 'brred', 'brgreen', 'bryellow', 'brblue', 'brmagenta', 'brcyan', 'brwhite',
);
}
public function convert($text)
{
// remove cursor movement sequences
$text = preg_replace('#\e\[(K|s|u|2J|2K|\d+(A|B|C|D|E|F|G|J|K|S|T)|\d+;\d+(H|f))#', '', $text);
// remove character set sequences
$text = preg_replace('#\e(\(|\))(A|B|[0-2])#', '', $text);
$text = htmlspecialchars($text, PHP_VERSION_ID >= 50400 ? ENT_QUOTES | ENT_SUBSTITUTE : ENT_QUOTES, $this->charset);
// carriage return
$text = preg_replace('#^.*\r(?!\n)#m', '', $text);
$tokens = $this->tokenize($text);
// a backspace remove the previous character but only from a text token
foreach ($tokens as $i => $token) {
if ('backspace' == $token[0]) {
$j = $i;
while (--$j >= 0) {
if ('text' == $tokens[$j][0] && strlen($tokens[$j][1]) > 0) {
$tokens[$j][1] = substr($tokens[$j][1], 0, -1);
break;
}
}
}
}
$html = '';
foreach ($tokens as $token) {
if ('text' == $token[0]) {
$html .= $token[1];
} elseif ('color' == $token[0]) {
$html .= $this->convertAnsiToColor($token[1]);
}
}
if ($this->inlineStyles) {
$html = sprintf('%s', $this->inlineColors['black'], $this->inlineColors['white'], $html);
} else {
$html = sprintf('%s', $html);
}
// remove empty span
$html = preg_replace('#]*>#', '', $html);
return $html;
}
protected function convertAnsiToColor($ansi)
{
$bg = 0;
$fg = 7;
$as = '';
if ('0' != $ansi && '' != $ansi) {
$options = explode(';', $ansi);
foreach ($options as $option) {
if ($option >= 30 && $option < 38) {
$fg = $option - 30;
} elseif ($option >= 40 && $option < 48) {
$bg = $option - 40;
} elseif (39 == $option) {
$fg = 7;
} elseif (49 == $option) {
$bg = 0;
}
}
// options: bold => 1, underscore => 4, blink => 5, reverse => 7, conceal => 8
if (in_array(1, $options)) {
$fg += 10;
$bg += 10;
}
if (in_array(4, $options)) {
$as = '; text-decoration: underline';
}
if (in_array(7, $options)) {
$tmp = $fg;
$fg = $bg;
$bg = $tmp;
}
}
if ($this->inlineStyles) {
return sprintf('', $this->inlineColors[$this->colorNames[$bg]], $this->inlineColors[$this->colorNames[$fg]], $as);
} else {
return sprintf('', $this->colorNames[$bg], $this->colorNames[$fg]);
}
}
protected function tokenize($text)
{
$tokens = array();
preg_match_all("/(?:\e\[(.*?)m|(\x08))/", $text, $matches, PREG_OFFSET_CAPTURE);
$offset = 0;
foreach ($matches[0] as $i => $match) {
if ($match[1] - $offset > 0) {
$tokens[] = array('text', substr($text, $offset, $match[1] - $offset));
}
$tokens[] = array("\x08" == $match[0] ? 'backspace' : 'color', $matches[1][$i][0]);
$offset = $match[1] + strlen($match[0]);
}
if ($offset < strlen($text)) {
$tokens[] = array('text', substr($text, $offset));
}
return $tokens;
}
}