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Small command parsing refactoring

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This commit is contained in:
Maxime Coste 2016-12-07 13:26:11 +00:00
parent d9679db9b6
commit 2f704eab16
1 changed files with 11 additions and 13 deletions
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24
src/command_manager.cc
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@ -431,7 +431,7 @@ void CommandManager::execute(StringView command_line,
DisplayCoord command_coord;
Vector<String> params;
for (auto it = tokens.begin(); it != tokens.end(); ++it)
for (auto it = tokens.begin(); it != tokens.end(); )
{
if (params.empty())
command_coord = it->coord();
@ -444,22 +444,20 @@ void CommandManager::execute(StringView command_line,
// Shell expand are retokenized
else if (it->type() == Token::Type::ShellExpand)
{
auto shell_tokens = parse<true>(expand_token(*it, context,
shell_context));
it = tokens.erase(it);
for (Token& token : shell_tokens)
it = ++tokens.emplace(it, std::move(token));
if (tokens.empty())
break;
it -= shell_tokens.size() + 1;
auto new_tokens = parse<true>(expand_token(*it, context,
shell_context));
it = tokens.insert(tokens.erase(it),
std::make_move_iterator(new_tokens.begin()),
std::make_move_iterator(new_tokens.end()));
continue; // skip incrementing, we already point to next token
}
else if (it->type() == Token::Type::ArgExpand and it->content() == '@')
std::copy(shell_context.params.begin(), shell_context.params.end(),
std::back_inserter(params));
params.insert(params.end(), shell_context.params.begin(),
shell_context.params.end());
else
params.push_back(expand_token(*it, context, shell_context));
++it;
}
execute_single_command(params, context, shell_context, command_coord);
}