ltlcross: support short names

* NEWS: Mention it.
* doc/org/ltlcross.org: Document it.
* src/bin/ltlcross.cc: Implement it.
* src/tgbatest/Makefile.am, src/tgbatest/defs.in,
src/tgbatest/ltlcross4.test: Test it.

src/tgbatest/Makefile.am

@@ -114,6 +114,7 @@ TESTS = \
   wdba.test \
   wdba2.test \
   babiak.test \
+  ltlcross4.test \
   ltl2dstar.test \
   ltl2dstar2.test \
   randtgba.test \

src/tgbatest/defs.in

@@ -1,6 +1,6 @@
 # -*- mode: shell-script; coding: utf-8 -*-
-# Copyright (C) 2009, 2010, 2012 Laboratoire de Recherche et Développement
-# de l'Epita (LRDE).
+# Copyright (C) 2009, 2010, 2012, 2013 Laboratoire de Recherche et
+# Développement de l'Epita (LRDE).
 # Copyright (C) 2003, 2004, 2006 Laboratoire d'Informatique de Paris 6 (LIP6),
 # département Systèmes Répartis Coopératifs (SRC), Université Pierre
 # et Marie Curie.
@@ -64,6 +64,7 @@ LBTT_TRANSLATE="@LBTT_TRANSLATE@"
 VALGRIND='@VALGRIND@'
 SPIN='@SPIN@'
 LTL2BA='@LTL2BA@'
+PYTHON='@PYTHON@'
 
 need_lbtt()
 {

src/tgbatest/ltlcross4.test

@@ -0,0 +1,86 @@
+#!/bin/sh
+# -*- coding: utf-8 -*-
+# Copyright (C) 2012, 2013 Laboratoire de Recherche et Développement
+# 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 3 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+
+. ./defs
+set -e
+
+test -z "$PYTHON" && exit 77
+
+ltl2tgba=../../bin/ltl2tgba
+
+cat >formulas.txt <<EOF
+GFa & GFb
+GFa -> GFb
+EOF
+
+../../bin/ltlcross -F formulas.txt \
+  "{ltl2tgba any} $ltl2tgba --lbtt --any %f > %T" \
+  "{ltl2tgba det} $ltl2tgba --lbtt --deterministic %f > %T" \
+  "{ltl2tgba sma} $ltl2tgba --lbtt --small %f > %T" \
+  --csv=output.csv
+
+cat >test.py <<EOF
+import sys
+try:
+  import pandas
+except ImportError:
+  sys.exit(77)
+
+x = pandas.read_csv("output.csv")
+print(x.filter(('formula', 'tool',
+                'states', 'transitions')).groupby('tool').describe())
+EOF
+
+# will exit 77 if panda is not installed
+$PYTHON test.py >out.1
+
+# remove trailing whitespace from pandas' output
+sed 's/[ \t]*$//g' <out.1 > py.out
+
+cat >expected <<EOF
+                      states  transitions
+tool
+ltl2tgba any count  4.000000     4.000000
+             mean   2.250000    10.000000
+             std    0.957427     5.163978
+             min    1.000000     4.000000
+             25%    1.750000     7.000000
+             50%    2.500000    10.000000
+             75%    3.000000    13.000000
+             max    3.000000    16.000000
+ltl2tgba det count  4.000000     4.000000
+             mean   2.250000     9.250000
+             std    0.957427     4.573474
+             min    1.000000     4.000000
+             25%    1.750000     6.250000
+             50%    2.500000     9.500000
+             75%    3.000000    12.500000
+             max    3.000000    14.000000
+ltl2tgba sma count  4.000000     4.000000
+             mean   2.250000     9.250000
+             std    0.957427     4.573474
+             min    1.000000     4.000000
+             25%    1.750000     6.250000
+             50%    2.500000     9.500000
+             75%    3.000000    12.500000
+             max    3.000000    14.000000
+EOF
+
+diff py.out expected