Use 'symbol' for Prolog's variables.
Use 'symbol' for Prolog's variables.

'Symbol' is actually close in semantics as it is used in other
languages as a "name resolving to itself" as opposed to a variable
name resolving to some value.

'Variable' doesn't work here as that is reserved for substitution
variables in scripts and templates.

palmin/highlight.js,highlightjs/highlight.js,palmin/highlight.js,highlightjs/highlight.js,teambition/highlight.js,aurusov/highlight.js,teambition/highlight.js,carlokok/highlight.js,sourrust/highlight.js,isagalaev/highlight.js,carlokok/highlight.js,aurusov/highlight.js,bluepichu/highlight.js,isagalaev/highlight.js,dbkaplun/highlight.js,Sannis/highlight.js,VoldemarLeGrand/highlight.js,palmin/highlight.js,dbkaplun/highlight.js,teambition/highlight.js,tenbits/highlight.js,VoldemarLeGrand/highlight.js,MakeNowJust/highlight.js,tenbits/highlight.js,MakeNowJust/highlight.js,carlokok/highlight.js,Sannis/highlight.js,carlokok/highlight.js,MakeNowJust/highlight.js,highlightjs/highlight.js,bluepichu/highlight.js,Sannis/highlight.js,highlightjs/highlight.js,dbkaplun/highlight.js,sourrust/highlight.js,StanislawSwierc/highlight.js,tenbits/highlight.js,bluepichu/highlight.js,aurusov/highlight.js,lead-auth/highlight.js,VoldemarLeGrand/highlight.js,sourrust/highlight.js,StanislawSwierc/highlight.js