Prevent whitespaces in command names

Fixes #1843
2018-02-11 20:35:21 +11:00 · 2018-02-11 20:35:21 +11:00 · f3c19ba7fa
commit f3c19ba7fa
parent 01259bf22c
1 changed files with 3 additions and 0 deletions
--- a/src/commands.cc
+++ b/src/commands.cc
@ -842,6 +842,9 @@ void define_command(const ParametersParser& parser, Context& context, const Shel
    const String& cmd_name = parser[0];
    auto& cm = CommandManager::instance();

+    if (contains_that(cmd_name, is_blank))
+        throw runtime_error(format("invalid command name: '{}'", cmd_name));
+
    if (cm.command_defined(cmd_name) and not parser.get_switch("allow-override"))
        throw runtime_error(format("command '{}' already defined", cmd_name));