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Support -shell-completion option in the def command

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-shell-completion takes some shell code as parameter which
should returns a newline separated list of completion candidates.
This commit is contained in:
Maxime Coste 2012-05-29 05:22:18 +00:00
parent 62202a46c1
commit d599542473
1 changed files with 29 additions and 2 deletions
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31
src/commands.cc
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@ -13,6 +13,7 @@
#include "filter_registry.hh" #include "filter_registry.hh"
#include "register_manager.hh" #include "register_manager.hh"
#include "completion.hh" #include "completion.hh"
#include "shell_manager.hh"
namespace Kakoune namespace Kakoune
@ -441,7 +442,8 @@ void define_command(const CommandParameters& params, const Context& context)
{ {
ParametersParser parser(params, ParametersParser parser(params,
{ { "env-params", false }, { { "env-params", false },
{ "append-params", false } }); { "append-params", false },
{ "shell-completion", true } });
if (parser.positional_count() < 2) if (parser.positional_count() < 2)
throw wrong_argument_count(); throw wrong_argument_count();
@ -482,7 +484,32 @@ void define_command(const CommandParameters& params, const Context& context)
CommandManager::instance().execute(cmd_params, context); CommandManager::instance().execute(cmd_params, context);
}; };
} }
CommandManager::instance().register_command(cmd_name, cmd);
if (parser.has_option("shell-completion"))
{
String shell_cmd = parser.option_value("shell-completion");
auto completer = [=](const CommandParameters& params,
size_t token_to_complete, size_t pos_in_token)
{
std::unordered_map<String, String> vars;
char param_name[] = "param0";
for (size_t i = 0; i < params.size(); ++i)
{
param_name[sizeof(param_name) - 2] = '0' + i;
vars[param_name] = params[i].c_str();
}
vars["token_to_complete"] = int_to_str(token_to_complete);
vars["pos_in_token"] = int_to_str(pos_in_token);
String output = ShellManager::instance().eval(shell_cmd, context, vars);
return split(output, '\n');
};
CommandManager::instance().register_command(cmd_name, cmd,
CommandManager::None,
completer);
}
else
CommandManager::instance().register_command(cmd_name, cmd);
} }
void echo_message(const CommandParameters& params, const Context& context) void echo_message(const CommandParameters& params, const Context& context)