use nu_engine::get_full_help;
use nu_protocol::ast::Call;
use nu_protocol::engine::{Command, EngineState, Stack};
use nu_protocol::{Category, IntoPipelineData, PipelineData, ShellError, Signature, Type, Value};
#[derive(Clone)]
pub struct From;
impl Command for From {
fn name(&self) -> &str {
"from"
}
fn usage(&self) -> &str {
"Parse a string or binary data into structured data."
}
fn signature(&self) -> nu_protocol::Signature {
Signature::build("from")
.category(Category::Formats)
.input_output_types(vec![(Type::Nothing, Type::String)])
}
fn extra_usage(&self) -> &str {
"You must use one of the following subcommands. Using this command as-is will only produce this help message."
}
fn run(
&self,
engine_state: &EngineState,
stack: &mut Stack,
call: &Call,
_input: PipelineData,
) -> Result<PipelineData, ShellError> {
Ok(Value::string(
get_full_help(
&From.signature(),
&From.examples(),
engine_state,
stack,
self.is_parser_keyword(),
),
call.head,
)
.into_pipeline_data())
}
}