[plt-scheme] parser tools collection

> Of course, you can specify patterns involving newlines, so there's no 
> loss of expressiveness...
I did that. I was on a course to create a one parse moloch. But that 
posed problems like
not wanting to use #\newline, but still needing to know if something was 
at the beginning
of a line.

 I'm now on a course to first parse on structure, then parse on details. 
Looks more promising.

--Hans

>
> John Clements