Formats a string for output on multiple lines.
private function formatString($string) {
// Escape characters for processing.
$string = addcslashes($string, "\0..\37\\\"");
// Always include a line break after the explicit \n line breaks from
// the source string. Otherwise wrap at 70 chars to accommodate the extra
// format overhead too.
$parts = explode("\n", wordwrap(str_replace('\\n', "\\n\n", $string), 70, " \n"));
// Multiline string should be exported starting with a "" and newline to
// have all lines aligned on the same column.
if (count($parts) > 1) {
return "\"\"\n\"" . implode("\"\n\"", $parts) . "\"\n";
}
else {
return "\"{$parts[0]}\"\n";
}
}