Shortcuts for accents in \metrics

[tweh]

A line like

\metrics{_ _ _ u u _ _ _ _ _ u u _ _}
   {Qu\acct{i}n \acct{e}t mer-c\acct{u}-ri-um mu-t\acct{a}-to n\acct{o}-mi-ne d\acct{i}-cunt}

is quite confusing so a shorter way for accents would be nice to have. E.g. by using active characters:

\acct{a}   ——>  °a
\acct{ae}  ——>  °{ae}
\lng{a}    ——>  _a
\lng{ae}   ——>  _{ae}
\brv{a}    ——>  ^a
\brv{ae}   ——>  ^{ae}

The above line would become

\metrics{_ _ _ u u _ _ _ _ _ u u _ _}
   {Qu°in °et mer-c°u-ri-um mu-t°a-to n°o-mi-ne d°i-cunt}

Additionally active characters for bows would be also great:

coel\bow{um e}st  ——> coel(um e)st

In that case only ( has to be active and ) part of the parameter definition.

---

What about fine tuning in this cases?
It should be no problem if \let is used, except for \bow …

---

Commands to (de)activate this for regular text would be also good to have

• \activatemetrixaccents … \deactivatemetrixaccents
• \metrixaccents{<text with active chars>}
• \activatemetrixbows … \deactivatemetrixbows
• \metrixbows{<text with active chars>}

In general the should be two package options to explicitly active the active characters to prevent bad interactions with other packages:

• active-accents = <true|false>
• active-bows = <true|false>

---

Check interaction with babel’s active characters!