{ core, ... }:
  let
    inherit(core) string;
    escape                              =   string.replace [ "_" "%" ] [ "\\_" "\\%" ];
  in
  {
    formatEmailTeX                      =   href: text: "\\mbox{\\href{mailto:${href}}{${escape text}}}";
    formatHttpsTeX                      =   href: text: "\\mbox{\\href{https://${href}}{${escape text}}}";
    formatHttpsTeX'                     =   href: text: "\\mbox{\\href{https:\\//${href}}{${escape text}}}";
    formatTeX                           =   href: text: "\\mbox{\\href{${href}}{${escape text}}}";
  }