found_file = checkLineBreak(sub.str(1), head);
// (7) "\tf@toc=\write<nr>" (for MikTeX)
else if (regex_match(token, sub, miktexTocReg))
found_file = checkLineBreak(sub.str(1), head);
// (7) "\tf@toc=\write<nr>" (for MikTeX)
else if (regex_match(token, sub, miktexTocReg))