Compatibility Dialects

Code read in the rhost or mux dialect parses some things as RhostMUSH or TinyMUX does. The dialect is the attribute’s rhost or mux flag, or the dialect option for typed input and attributes without one (see compatibility config). Elsewhere, each of these reads as on PennMUSH.

compatibility dialects rhostmush substitutions: %+!, %-#, %-n and the rest, and the } prefix
compatibility dialects commas in one argument functions: strlen(a,b) is 3

RhostMUSH substitutions

Under the rhost dialect, these read as on RhostMUSH. Elsewhere %-n is -n, and %+! is the argument count followed by !.

%+! is every argument, joined by spaces, and %+!<c>! joins them with <c>.
%- on its own is every argument from %10 on, joined by commas.
%-#, %-n and %-k are the dbref, name and moniker of the object whose queue entry is running, or of the player who typed the line. A u() does not change them, as it changes %!.
%-m is the command line a hook is running for, and %-p the line the player typed. Both are empty outside a hook.
%-h<name> reads RhostMUSH’s attribute cache. SharpMUSH has none, so it is #-1 INVALID CACHE.
%f is %f, and %w is #-1, as on a RhostMUSH game that defines no %f and checks no twink lock; SharpMUSH has neither. %wa is #-1a, not attribute WA.

A command typed after } keeps its runs of spaces, whatever space_compress says.

> think ulambda(lit(#lambda/%+!|%+!-!),a,b,c)
a b c|a-b-c
> think %-#|%f|%w
#1|%f|#-1
> }think a   b
a   b

Commas in one-argument functions

Under the mux or rhost dialect, a function that takes one argument reads the commas in it as text, as TinyMUX and RhostMUSH do: strlen(a,b) is 3. Each piece is evaluated as it would be alone.

Both: capstr(), escape(), flip() (and reverse()), lcstr(), lit(), s(), secure(), strlen(), ucstr().
mux only: sha1(), strmem(), t().
rhost only: decode64(), encode64(), ispunct(), strlenraw().

> think [strlen(a,b)] [ucstr(a, b)]
3 A, B