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ltlgrind: improve error message when formulas are missing

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The error message, inherited from ltl2tgba, used to say "No formula to
translate", but "translate" isn't appropriate here.

* bin/common_finput.cc, bin/common_finput.hh (check_no_formula): Allow
"translate" to be changed.
* bin/ltlgrind.cc: Change it.
* tests/core/ltlgrind.test: Test it.
This commit is contained in:
Alexandre Duret-Lutz 2024-08-21 11:18:14 +02:00
parent 3693bbab08
commit 436e5a2d7f
4 changed files with 13 additions and 5 deletions
Download patch file Download diff file Expand all files Collapse all files

6
bin/common_finput.cc
View file

@ -388,14 +388,14 @@ job_processor::run()
return error;
}
void check_no_formula()
void check_no_formula(const char* action)
{
if (!jobs.empty())
return;
if (isatty(STDIN_FILENO))
error(2, 0, "No formula to translate? Run '%s --help' for help.\n"
error(2, 0, "No formula to %s? Run '%s --help' for help.\n"
"Use '%s -' to force reading formulas from the standard "
"input.", program_name, program_name);
"input.", action, program_name, program_name);
jobs.emplace_back("-", job_type::LTL_FILENAME);
}

2
bin/common_finput.hh
View file

@ -93,5 +93,5 @@ public:
// Report and error message or add a default job depending on whether
// the input is a tty.
void check_no_formula();
void check_no_formula(const char* action = "translate");
void check_no_automaton();

2
bin/ltlgrind.cc
View file

@ -199,7 +199,7 @@ main(int argc, char* argv[])
mut_opts |= opt_all;
check_no_formula();
check_no_formula("mutate");
mutate_processor processor;
if (processor.run())

8
tests/core/ltlgrind.test
View file

@ -200,3 +200,11 @@ EOF
ltlgrind -f 'a U b' -m 999999999999999999999999999 2>err && exit 1
grep 'too large' err
# The following message appears only if run from a tty.
if (: > /dev/tty) >/dev/null 2>&1 ; then
ltlgrind </dev/tty 2>err && exit 1
grep 'No formula to mutate' err
fi
: