Enum CommandLineSlot 

pub enum CommandLineSlot {
    CommandName {
        prefix: String,
        replace_start: usize,
    },
    Arg {
        command_name: String,
        arg_index: usize,
        arg_spec: ArgSpec,
        prefix: String,
        replace_start: usize,
    },
    BeyondSchema {
        command_name: String,
    },
    DelimiterBody {
        command_name: String,
        body: String,
    },
    UnknownCommand {
        word: String,
        replace_start: usize,
    },
    Empty,
}

What the cursor on the : line is pointing at.

Variants

CommandName

Cursor is in (or right after) the command name. The completion source is conventionally gen:commands.

Fields

prefix: String

Partial text typed so far for the command name.

replace_start: usize

Byte offset within the cmdline where the prefix begins (so the host can replace [replace_start, cursor) when the user accepts a candidate).

Arg

Cursor is in the N-th positional arg of the resolved command. arg_spec is the schema entry; command_name is the canonical registry name (so the host can re-look-up if it needs to).

Fields

command_name: String

arg_index: usize

arg_spec: ArgSpec

prefix: String

replace_start: usize

BeyondSchema

Cursor is past the schema’s declared args (e.g. extra trailing whitespace on a no-arg command). No completion.

Fields

command_name: String

DelimiterBody

Cursor is on a delimiter-syntax command body (:s/pattern/replacement/flags, :g/pattern/body). v1 returns this without slot specifics; the cmdline parser may special-case if it wants to (e.g. complete commands inside :g body). Default: no completion.

Fields

command_name: String

body: String

UnknownCommand

Couldn’t resolve the command word to a registered command. No completion possible (we don’t know the schema).

Fields

word: String

replace_start: usize

Empty

Empty cmdline. Treated as command-name slot with empty prefix.

Implementations

impl CommandLineSlot

pub fn prefix(&self) -> &str

Convenience: get the prefix the matcher should run against.

pub fn replace_start(&self) -> Option<usize>

Trait Implementations

impl Clone for CommandLineSlot

fn clone(&self) -> CommandLineSlot

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for CommandLineSlot

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq for CommandLineSlot

fn eq(&self, other: &CommandLineSlot) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for CommandLineSlot