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Implement a parser for LBT's prefix syntax for LTL.

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* src/ltlparse/public.hh (parse_lbt): New function.
* src/ltlparse/ltlparse.yy, src/ltlparse/ltlscan.ll: Implement it.
* src/bin/ltlfilt.cc: Use it.
This commit is contained in:
Alexandre Duret-Lutz 2012-09-14 17:43:13 +02:00
parent a010ebc805
commit 106a14f8db
4 changed files with 134 additions and 2 deletions
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11
src/bin/ltlfilt.cc
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@ -86,6 +86,7 @@ Exit status:\n\
#define OPT_IMPLIED_BY 23
#define OPT_IMPLY 24
#define OPT_EQUIVALENT_TO 25
#define OPT_LBT 26
static const argp_option options[] =
{
@ -94,6 +95,7 @@ static const argp_option options[] =
{ "formula", 'f', "STRING", 0, "process the formula STRING", 0 },
{ "file", 'F', "FILENAME", 0,
"process each line of FILENAME as a formula", 0 },
{ "lbt-input", OPT_LBT, 0, 0, "read all formulas using LBT's prefix syntax", 0 },
{ 0, 0, 0, 0, "Error handling:", 2 },
{ "skip-errors", OPT_SKIP_ERRORS, 0, 0,
"output erroneous lines as-is without processing", 0 },
@ -178,6 +180,7 @@ static bool one_match = false;
enum error_style_t { drop_errors, skip_errors };
static error_style_t error_style = drop_errors;
static bool lbt = false;
static bool quiet = false;
static bool nnf = false;
static bool negate = false;
@ -275,6 +278,8 @@ parse_opt(int key, char* arg, struct argp_state*)
case OPT_GUARANTEE:
guarantee = obligation = true;
break;
case OPT_LBT:
lbt = true;
case OPT_LTL:
ltl = true;
break;
@ -367,7 +372,11 @@ namespace
const char* filename = 0, int linenum = 0)
{
spot::ltl::parse_error_list pel;
const spot::ltl::formula* f = spot::ltl::parse(input, pel);
const spot::ltl::formula* f;
if (lbt)
f = spot::ltl::parse_lbt(input, pel);
else
f = spot::ltl::parse(input, pel);
if (!f || pel.size() > 0)
{