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add a try command

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use try <commands...> catch <failure_commands...>
This commit is contained in:
Maxime Coste 2012-06-04 14:27:34 +00:00
parent 310bc42d54
commit 419d5691a1
1 changed files with 25 additions and 0 deletions
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25
src/commands.cc
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@ -743,6 +743,30 @@ void menu(const CommandParameters& params,
CommandManager::instance().execute(parser[(i-1)*2+1], context);
}
void try_catch(const CommandParameters& params,
const Context& context)
{
size_t i = 0;
for (; i < params.size(); ++i)
{
if (params[i] == "catch")
break;
}
if (i == 0 or i == params.size())
throw wrong_argument_count();
CommandManager& command_manager = CommandManager::instance();
try
{
command_manager.execute(params.subrange(0, i), context);
}
catch (Kakoune::runtime_error& e)
{
command_manager.execute(params.subrange(i+1, params.size() - i - 1), context);
}
}
}
void register_commands()
@ -817,6 +841,7 @@ void register_commands()
cm.register_command("exec", exec_string);
cm.register_command("eval", eval_string);
cm.register_command("menu", menu);
cm.register_command("try", try_catch, CommandManager::IgnoreSemiColons | CommandManager::DeferredShellEval);
cm.register_command("def", define_command, CommandManager::IgnoreSemiColons | CommandManager::DeferredShellEval);
cm.register_command("echo", echo_message);