I too thought of using NBSP as a word separator. Unicode is replete with spaces of various widths and usages. I suggest, however, that Haskell code does tend to require careful reading, and that ambiguities (like the word boundaries that baStudlyCapsMakesSoHardToLocateQuickly) that we might tolerate in contexts where the text is fairly predictable are far less tolerable in stuff that requires a close reading. One of the problems with baStudlyCaps is that it can give Stress to the wrong words. Take takeWhile as an example. The "while" bit is humanly recoverable because a function follows it. The thing that you most need to see is "take". But it's the least informative part of the name (While) that is stressed. The "visible blank" U+2423 (Unicode calls it an "Open Box", but its function is to visibly indicate a blank) might␣just␣do, but you might as well use underscores (or hyphens).