Setup base for conversion modifiers to be written.

tests/testvar.jet

@@ -8,7 +8,7 @@
 <set name="var1var" value="Yet another test" />
 <set name="var11" value="it seems to work." />
 
-$[$[ix]var$[ix]]
+$[$[ix]var$[ix];binary]
 $[var$[ix]]
 $[var$[ix]var]
 $[var$[i$[letterx]]var]