New Asm_full_simp_tac led to a loop.
#!/bin/bash
#
# $Id$
#
# DESCRIPTION: check files for non-ASCII characters
## diagnostics
PRG=$(basename $0)
function usage()
{
echo
echo "Usage: $PRG [FILES|DIRS...]"
echo
echo " Recursively find .thy/.ML files and check for non-ASCII characters."
echo
exit 1
}
## process command line
[ $# -eq 0 -o "$1" = "-?" ] && usage
SPECS="$@"; shift $#
## main
find $SPECS \( -name \*.ML -o -name \*.thy \) -print | \
xargs perl -w -e \
'while(<ARGV>) { if (m/[\x80-\xff]/) { print "$ARGV: $_"; }}'