removed redundant const_constraint;
add_const_constraint: proper certification;
prepare_dummies: avoid imperative features;
term_check: separate phases, standard_infer_types passes inference parameters instead of frees/vars;
Syntax.install_operations: dummy unparsers;
#!/usr/bin/env bash
#
# $Id$
#
# fileident --- produce file identification based
FILE="$1"
if [ -n "$ISABELLE_FILE_IDENT" -a -f "$FILE" -a -r "$FILE" ]
then
ID=$(cat "$FILE" | $ISABELLE_FILE_IDENT | cut -d " " -f 1) && echo -n "$ID"
fi