practical DSLs Isn't embedding a "practical DSLs" another toy compiler? Except that with a DSL, you have to worry about gnarly but not-so-interesting problems

practical DSLs Isn't embedding a "practical DSLs" another toy compiler? Except that with a DSL, you have to worry about gnarly but not-so-interesting problems like what happens to my syntax (given by a CFG) when I add another syntax (another CFG)? Are the combined CFGs ambiguous etc? Keep things simple!