or/parser, and that's far beyond the scope of both the exercise and book.

Age	Commit message (Expand)	Author	Files	Lines
2013-10-13	Solve Exercise 5-12: flexible `detab` and `entab`	zlg	2	-0/+157
2013-09-26	Solve Exercise 5-11: `entab` and `detab` remixed!	zlg	2	-0/+137
2013-09-24	Clean up 5-10's printf() calls	zlg	1	-4/+0