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Shell: Add support for ARGV (and $*, $#)

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This patchset also adds the 'shift' builtin, as well as the usual tests.
closes #2948.
This commit is contained in:
AnotherTest 2020-08-04 09:27:25 +04:30 • committed by Andreas Kling
parent 192b2383ac
commit 12af65c1c9
8 changed files with 79 additions and 1 deletions
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14
Shell/AST.cpp
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@ -2004,6 +2004,7 @@ RefPtr<Value> SimpleVariableValue::resolve_without_cast(RefPtr<Shell> shell)
SpecialVariableValue::~SpecialVariableValue()
{
}
Vector<String> SpecialVariableValue::resolve_as_list(RefPtr<Shell> shell)
{
switch (m_name) {
@ -2011,6 +2012,19 @@ Vector<String> SpecialVariableValue::resolve_as_list(RefPtr<Shell> shell)
return { String::number(shell->last_return_code) };
case '$':
return { String::number(getpid()) };
case '*':
if (auto argv = shell->lookup_local_variable("ARGV"))
return argv->resolve_as_list(shell);
return {};
case '#':
if (auto argv = shell->lookup_local_variable("ARGV")) {
if (argv->is_list()) {
auto list_argv = static_cast<AST::ListValue*>(argv.ptr());
return { String::number(list_argv->values().size()) };
}
return { "1" };
}
return { "0" };
default:
return { "" };
}