Add text I/O for Kripke structures.

* src/kripke/kripkeexplicit.cc, src/kripke/kripkeexplicit.hh,
src/kripke/kripkeprint.cc, src/kripke/kripkeprint.hh: New files.
* src/kripke/Makefile.am: Add them.
* src/kripkeparse/fmterror.cc, src/kripkeparse/kripkeparse.yy,
src/kripkeparse/kripkescan.ll, src/kripkeparse/parsedecl.hh,
src/kripkeparse/public.hh, src/kripkeparse/scankripke.ll: New
files.
* src/kripkeparse/Makefile.am: Add them.
* src/kripketest/bad_parsing.test, src/kripketest/defs.in,
src/kripketest/kripke.test, src/kripketest/origin,
src/kripketest/parse_print_test.cc: New files.
* src/kripketest/Makefile.am: Add them.
* src/Makefile.am (SUBDIRS): Add kripkeparse and kripketest.
* README: Document src/kripketest/ and src/kripkeparse/.
* configure.ac: Generate src/kripkeparse/Makefile,
src/kripketest/Makefile, src/kripketest/defs.
* iface/dve2/defs.in (run2): New function.
* iface/dve2/dve2check.cc (syntax, main): Add option -gK.
* iface/dve2/kripke.test: New file.
* iface/dve2/Makefile.am (TESTS): Add kripke.test.

src/kripketest/bad_parsing.test

@@ -0,0 +1,91 @@
+#! /bin/sh
+
+# Copyright (C) 2011 Laboratoire de Recherche et Developpement
+# de l'Epita (LRDE)
+#
+# This file is part of Spot, a model checking library.
+#
+# Spot is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# Spot is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+# or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
+# License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Spot; see the file COPYING.  If not, write to the Free
+# Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+# 02111-1307, USA.
+
+
+. ./defs
+
+set -e
+
+cat >input <<\EOF
+state;
+EOF
+
+cat >expected <<\EOF
+input:1.6: syntax error, unexpected ;, expecting ","
+EOF
+
+run 1 ../parse_print input 2> output
+cat output | grep -v + > res
+diff expected res
+
+rm -f output res expected
+
+cat >input <<\EOF
+state1, "a & b, state2;
+EOF
+
+cat >expected <<\EOF
+input:1.9-24: unterminated string
+input:1.25-24: syntax error, unexpected $end, expecting ","
+EOF
+
+run 1 ../parse_print input 2> output
+cat output | grep -v + > res
+diff expected res
+
+rm -f output res expected
+
+
+cat >input <<\EOF
+state, "", ;
+,,;
+EOF
+
+cat >expected <<\EOF
+input:1.9-8: empty input
+input:2.1: syntax error, unexpected ",", expecting $end
+EOF
+
+run 1 ../parse_print input 2> output
+cat output | grep -v + > res
+diff expected res
+
+rm -f output res expected
+
+cat >input <<\EOF
+state,, state3
+state2, "a & b", state2;
+EOF
+
+
+s="input:2.7: syntax error, unexpected \",\", expecting STRING"
+s2=" or UNTERMINATED_STRING or IDENT or ;"
+string="$s$s2";
+
+echo $string > expected
+
+run 1 ../parse_print input 2> output
+cat output | grep -v + > res
+diff expected res
+
+rm -f output res expected
+