(replaces Thy/scan.ML)
scanner now based on combinators of structure Scanner;
improved handling of keywords;
now supports long.ids, (* (* nested *) comments *), {| verbatim text |};
#! /bin/sh
#rm-logfiles: remove useless files from subdirectories
rm log */make*.log */make*.log.gz
rm */test
rm */.*.thy.ML
rm */ex/.*.thy.ML
rm HOL/Subst/.*.thy.ML