spot/src/tgbaparse/tgbascan.ll
Alexandre Duret-Lutz 20289e4e7f Explicit automata can now have arbitrary logic formula on their
arcs.  ltl2tgba_fm benefits from this and join multiple arcs with
the same destination and acceptance conditions.
* src/tgba/formula2bdd.cc, src/tgba/formula2bdd.hh: New files.
* src/tgba/Makefile.am (tgba_HEADERS, libtgba_la_SOURCES): Add them.
* src/tgba/bddprint.cc, src/tgba/bddprint.hh (bdd_pring_formula,
bdd_format_formula): New functions.
* src/tgba/tgbaexplicit.hh (tgba_explicit::get_condition,
tgba_explicit::add_condition, tgba_explicit::add_neg_condition,
tgba_explicit::declare_accepting_condition,
tgba_explicit::has_accepting_condition,
tgba_explicit::get_accepting_condition,
tgba_explicit::add_accepting_condition): Take a const formula*.
* src/tgba/tgbaexplicit.cc (tgba_explicit::add_condition):
Rewrite using formula_to_bdd.
* src/tgbaalgos/dotty.cc (dotty_bfs::process_link): Use
bdd_print_formula to display conditions.
* src/tgbaalgos/save.cc (save_bfs::process_state): Likewise.
* src/tgbaalgos/ltl2tgba_fm.cc (translate_dict::bdd_to_formula):
New function.
(translate_dict::conj_bdd_to_atomic_props): Remove.
(ltl_to_tgba_fm): Factor successors on accepting conditions
and destinations, not conditions.  Use bdd_to_formula to translate
the conditions.
* src/tgbaparse/tgbaparse.yy: Expect conditions as a formula
in a string, call the LTL parser for this.
* src/tgbaparse/tgbascan.ll: Process " and \ escapes in
strings.
* src/tgbatest/emptchke.test, src/tgbatest/explicit.test,
src/tgbatest/explpro2.test, src/tgbatest/explpro3.test,
src/tgbatest/explprod.test, src/tgbatest/mixprod.test,
src/tgbatest/readsave.test, src/tgbatest/tgbaread.test,
src/tgbatest/tripprod.test: Adjust to new syntax for explicit
automata.
2003-11-24 18:30:09 +00:00

118 lines
2.6 KiB
LLVM

/* Copyright (C) 2003 Laboratoire d'Informatique de Paris 6 (LIP6),
** département Systèmes Répartis Coopératifs (SRC), Université Pierre
** et Marie Curie.
**
** 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.
*/
%option noyywrap
%option prefix="tgbayy"
%option outfile="lex.yy.c"
%x STATE_STRING
%{
#include <string>
#include "tgbaparse/parsedecl.hh"
#define YY_USER_ACTION \
yylloc->columns(yyleng);
#define YY_USER_INIT \
do { \
yylloc->begin.filename = current_file; \
yylloc->end.filename = current_file; \
} while (0)
#define YY_NEVER_INTERACTIVE 1
static std::string current_file;
%}
eol \n|\r|\n\r|\r\n
%%
%{
yylloc->step ();
%}
acc[ \t]*= return ACC_DEF;
[a-zA-Z][a-zA-Z0-9_]* {
yylval->str = new std::string(yytext);
return IDENT;
}
/* discard whitespace */
{eol} yylloc->lines(yyleng); yylloc->step();
[ \t]+ yylloc->step();
\" {
yylval->str = new std::string;
BEGIN(STATE_STRING);
}
. return *yytext;
/* Handle \" and \\ in strings. */
<STATE_STRING>{
\" {
BEGIN(INITIAL);
return STRING;
}
\\["\\] yylval->str->append(1, yytext[1]);
[^"\\]+ yylval->str->append (yytext, yyleng);
<<EOF>> {
BEGIN(INITIAL);
return UNTERMINATED_STRING;
}
}
%{
/* Dummy use of yyunput to shut up a gcc warning. */
(void) &yyunput;
%}
%%
namespace spot
{
int
tgbayyopen(const std::string &name)
{
if (name == "-")
{
yyin = stdin;
current_file = "standard input";
}
else
{
yyin = fopen (name.c_str (), "r");
current_file = name;
if (!yyin)
return 1;
}
return 0;
}
void
tgbayyclose()
{
fclose(yyin);
}
}