+ globals.push_back(from_ascii("\\xLeftarrow"));
+ globals.push_back(from_ascii("\\xleftharpoondown"));
+ globals.push_back(from_ascii("\\xleftharpoonup"));
+ globals.push_back(from_ascii("\\xleftrightarrow"));
+ globals.push_back(from_ascii("\\xLeftrightarrow"));
+ globals.push_back(from_ascii("\\xleftrightharpoons"));
+ globals.push_back(from_ascii("\\xmapsto"));