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Userspace: Shell argument parsing now appriciates quotes

This commit is contained in:
Bananymous 2023-06-19 01:07:00 +03:00
parent f7060970e6
commit de88f60d1a
1 changed files with 48 additions and 3 deletions
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51
userspace/Shell/main.cpp
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@ -12,10 +12,55 @@ struct termios old_termios, new_termios;
BAN::Vector<BAN::String> parse_command(BAN::StringView command)
{
auto args = MUST(command.split(' '));
enum class State
{
Normal,
SingleQuote,
DoubleQuote,
};
BAN::Vector<BAN::String> result;
for (auto arg : args)
MUST(result.push_back(arg));
State state = State::Normal;
BAN::String current;
for (char c : command)
{
switch (state)
{
case State::Normal:
if (c == '\'')
state = State::SingleQuote;
else if (c == '"')
state = State::DoubleQuote;
else if (!isspace(c))
MUST(current.push_back(c));
else
{
if (!current.empty())
{
MUST(result.push_back(current));
current.clear();
}
}
break;
case State::SingleQuote:
if (c == '\'')
state = State::Normal;
else
MUST(current.push_back(c));
break;
case State::DoubleQuote:
if (c == '"')
state = State::Normal;
else
MUST(current.push_back(c));
break;
}
}
// FIXME: handle state != State::Normal
MUST(result.push_back(BAN::move(current)));
return result;
}