Corridx is a preprocessor which stands between your LaTeX run and . It corrects index entries, in cases where the natural way to express an index item is bad for index sorting. So, for example, it can simply transform an entry \index{1,2-ethanediol} to \index{ethanediol@1,2-ethanediol}, which will be sorted as you might hope, rather than in amongst the numbers.

The program is distributed as Pascal source, though a win32 executable is also available; the documentation shows how to integrate it with .

The program has now been superseded by a which does the job on the fly.

The author is Johannes K. Fink.