lib/Tools/unsymbolize

1. changed configuration variables for linear programming (Cplex_tools):
LP_SOLVER is either CPLEX or GLPK
CPLEX_PATH is the path to the cplex binary
GLPK_PATH is the path to the glpk binary
The change makes it possible to switch between glpk and cplex at runtime.
2. moved conflicting list theories out of Library.thy into ROOT.ML

#!/usr/bin/env bash
#
# $Id$
# Author: Markus Wenzel, TU Muenchen
#
# DESCRIPTION: remove unreadable symbol names from sources


## diagnostics

PRG="$(basename "$0")"

function usage()
{
  echo
  echo "Usage: $PRG [FILES|DIRS...]"
  echo
  echo "  Recursively find .thy/.ML files, removing unreadable symbol names."
  echo "  Note: this is an ad-hoc script; there is no systematic way to replace"
  echo "  symbols independently of the inner syntax of a theory!"
  echo
  echo "  Renames old versions of FILES by appending \"~~\"."
  echo
  exit 1
}


## process command line

[ "$#" -eq 0 -o "$1" = "-?" ] && usage

SPECS="$@"; shift "$#"


## main

#set by configure
AUTO_PERL=perl

find $SPECS \( -name \*.ML -o -name \*.thy \) -print | \
  xargs "$AUTO_PERL" -w "$ISABELLE_HOME/lib/scripts/unsymbolize.pl"