/**
* Parses the stack trace, and makes it look pretty.
*
* This includes adding in the syntax highlighting,
* highlighting the colours for the files,
* and padding with whitespace.
*
* If stackTrace is null, then null is returned.
*/
private function parseStackTrace($code, $message, $errLine, $errFile, &$stackTrace, $root, $altInfo = null)
{
if ($stackTrace !== null) {
/*
* For whitespace padding.
*/
$lineLen = 0;
$fileLen = 0;
// parse the stack trace, and remove the long urls
foreach ($stackTrace as $i => $trace) {
if ($trace) {
if (isset($trace['line'])) {
$lineLen = max($lineLen, strlen($trace['line']));
} else {
$trace['line'] = '';
}
$info = '';
if ($i === 0 && $altInfo !== null) {
$info = $altInfo;
/*
* Skip for the first iteration,
* as it's usually magical PHP calls.
*/
} else {
if ($i > 0 && (isset($trace['class']) || isset($trace['type']) || isset($trace['function']))) {
$args = array();
if (isset($trace['args'])) {
foreach ($trace['args'] as $arg) {
$args[] = ErrorHandler::identifyTypeHTML($arg, 1);
}
}
$info = ErrorHandler::syntaxHighlightFunction(isset($trace['class']) ? $trace['class'] : null, isset($trace['type']) ? $trace['type'] : null, isset($trace['function']) ? $trace['function'] : null, $args);
} else {
if (isset($trace['info']) && $trace['info'] !== '') {
$info = ErrorHandler::syntaxHighlight($trace['info']);
} else {
if (isset($trace['file']) && !isset($trace['info'])) {
$contents = $this->getFileContents($trace['file']);
if ($contents) {
$info = ErrorHandler::syntaxHighlight(trim($contents[$trace['line'] - 1]));
}
}
}
}
}
$trace['info'] = $info;
if (isset($trace['file'])) {
list($type, $file) = $this->getFolderType($root, $trace['file']);
$trace['file_type'] = $type;
$trace['is_native'] = false;
} else {
$file = '[Internal PHP]';
$trace['file_type'] = '';
$trace['is_native'] = true;
}
$trace['file'] = $file;
$fileLen = max($fileLen, strlen($file));
$stackTrace[$i] = $trace;
}
}
/*
* We are allowed to highlight just once, that's it.
*/
$highlightI = -1;
foreach ($stackTrace as $i => $trace) {
if ($trace['line'] === $errLine && $trace['file'] === $errFile) {
$highlightI = $i;
break;
}
}
foreach ($stackTrace as $i => $trace) {
if ($trace) {
// line
$line = str_pad($trace['line'], $lineLen, ' ', STR_PAD_LEFT);
// file
$file = $trace['file'];
$fileKlass = '';
if ($trace['is_native']) {
$fileKlass = 'file-internal-php';
} else {
$fileKlass = 'filename ' . ErrorHandler::folderTypeToCSS($trace['file_type']);
}
$file = $file . str_pad('', $fileLen - strlen($file), ' ', STR_PAD_LEFT);
// info
$info = $trace['info'];
if ($info) {
$info = str_replace("\n", '\\n', $info);
$info = str_replace("\r", '\\r', $info);
} else {
$info = ' ';
}
// line + file + info
$stackStr = "<td class='linenumber'>{$line}</td>" . "<td class='{$fileKlass}'>{$file}</td>" . "<td class='lineinfo'>{$info}</td>";
if ($trace['is_native']) {
$cssClass = 'is-native ';
} else {
$cssClass = '';
}
if ($highlightI === $i) {
$cssClass .= ' highlight';
} else {
if ($highlightI > $i) {
$cssClass .= ' pre-highlight';
}
}
if ($i !== 0 && isset($trace['exception']) && $trace['exception']) {
$ex = $trace['exception'];
$exHtml = '<tr class="error-stack-trace-exception"><td>' . 'exception "' . htmlspecialchars($ex->getMessage()) . '"' . '</td></tr>';
} else {
$exHtml = '';
}
$data = '';
if (isset($trace['file-lines-id'])) {
$data = 'data-file-lines-id="' . $trace['file-lines-id'] . '"';
}
$stackTrace[$i] = "{$exHtml}<tr class='error-stack-trace-line {$cssClass}' {$data}>{$stackStr}</tr>";
}
}
return '<table id="error-stack-trace">' . join("", $stackTrace) . '</table>';
} else {
return null;
}
}
