Files
nushell/crates/nu-cli/src/commands/commandline/set_cursor.rs
Loïc Riegel 8f634f4140 refactor: rename subcommand structs (#15309)
Came from [this
discussion](https://discord.com/channels/601130461678272522/1348791953784836147/1349699872059691038)
on discord with @fdncred

# Description
Small refactoring where I rename commands from "SubCommand" to its
proper name. Motivations: better clarity (although subjective), better
searchable, consistency.

The only commands I didn't touch were "split list" and "ansi gradient"
because of name clashes.

# User-Facing Changes
None

# Tests + Formatting
cargo fmt and clippy OK

# After Submitting
nothing required
2025-03-14 02:00:35 +01:00

66 lines
2.0 KiB
Rust

use nu_engine::command_prelude::*;
use unicode_segmentation::UnicodeSegmentation;
#[derive(Clone)]
pub struct CommandlineSetCursor;
impl Command for CommandlineSetCursor {
fn name(&self) -> &str {
"commandline set-cursor"
}
fn signature(&self) -> Signature {
Signature::build(self.name())
.input_output_types(vec![(Type::Nothing, Type::Nothing)])
.switch(
"end",
"set the current cursor position to the end of the buffer",
Some('e'),
)
.optional("pos", SyntaxShape::Int, "Cursor position to be set.")
.category(Category::Core)
}
fn description(&self) -> &str {
"Set the current cursor position."
}
fn search_terms(&self) -> Vec<&str> {
vec!["repl", "interactive"]
}
fn run(
&self,
engine_state: &EngineState,
stack: &mut Stack,
call: &Call,
_input: PipelineData,
) -> Result<PipelineData, ShellError> {
let mut repl = engine_state.repl_state.lock().expect("repl state mutex");
if let Some(pos) = call.opt::<i64>(engine_state, stack, 0)? {
repl.cursor_pos = if pos <= 0 {
0usize
} else {
repl.buffer
.grapheme_indices(true)
.map(|(i, _c)| i)
.nth(pos as usize)
.unwrap_or(repl.buffer.len())
};
Ok(Value::nothing(call.head).into_pipeline_data())
} else if call.has_flag(engine_state, stack, "end")? {
repl.cursor_pos = repl.buffer.len();
Ok(Value::nothing(call.head).into_pipeline_data())
} else {
Err(ShellError::GenericError {
error: "Required a positional argument or a flag".to_string(),
msg: "".to_string(),
span: None,
help: None,
inner: vec![],
})
}
}
}