Enum ptyprocess::ControlCode

pub enum ControlCode {
    Null,
    StartOfHeading,
    StartOfText,
    EndOfText,
    EndOfTransmission,
    Enquiry,
    Acknowledge,
    Bell,
    Backspace,
    HorizontalTabulation,
    LineFeed,
    VerticalTabulation,
    FormFeed,
    CarriageReturn,
    ShiftOut,
    ShiftIn,
    DataLinkEscape,
    DeviceControl1,
    DeviceControl2,
    DeviceControl3,
    DeviceControl4,
    NegativeAcknowledge,
    SynchronousIdle,
    EndOfTransmissionBlock,
    Cancel,
    EndOfMedium,
    Substitute,
    Escape,
    FileSeparator,
    GroupSeparator,
    RecordSeparator,
    UnitSeparator,
    Space,
    Delete,
}

ControlCode represents the standard ASCII control codes wiki

Variants

Null

Often used as a string terminator, especially in the programming language C.

StartOfHeading

In message transmission, delimits the start of a message header.

StartOfText

First character of message text, and may be used to terminate the message heading.

EndOfText

Often used as a “break” character (Ctrl-C) to interrupt or terminate a program or process.

EndOfTransmission

Often used on Unix to indicate end-of-file on a terminal (Ctrl-D).

Enquiry

Signal intended to trigger a response at the receiving end, to see if it is still present.

Acknowledge

Response to an Enquiry, or an indication of successful receipt of a message.

Bell

Used for a beep on systems that didn’t have a physical bell.

Backspace

Move the cursor one position leftwards. On input, this may delete the character to the left of the cursor.

HorizontalTabulation

Position to the next character tab stop.

LineFeed

On Unix, used to mark end-of-line. In DOS, Windows, and various network standards, LF is used following CR as part of the end-of-line mark.

VerticalTabulation

Position the form at the next line tab stop.

FormFeed

It appears in some common plain text files as a page break character.

CarriageReturn

Originally used to move the cursor to column zero while staying on the same line.

ShiftOut

Switch to an alternative character set.

ShiftIn

Return to regular character set after ShiftOut.

DataLinkEscape

May cause a limited number of contiguously following octets to be interpreted in some different way.

DeviceControl1

A control code which is reserved for device control.

DeviceControl2

A control code which is reserved for device control.

DeviceControl3

A control code which is reserved for device control.

DeviceControl4

A control code which is reserved for device control.

NegativeAcknowledge

In multipoint systems, the NAK is used as the not-ready reply to a poll.

SynchronousIdle

Used in synchronous transmission systems to provide a signal from which synchronous correction may be achieved.

EndOfTransmissionBlock

Indicates the end of a transmission block of data.

Cancel

Indicates that the data preceding it are in error or are to be disregarded.

EndOfMedium

May mark the end of the used portion of the physical medium.

Substitute

Sometimes used to indicate the end of file, both when typing on the terminal and in text files stored on disk.

Escape

The Esc key on the keyboard will cause this character to be sent on most systems. In systems based on ISO/IEC 2022, even if another set of C0 control codes are used, this octet is required to always represent the escape character.

FileSeparator

Can be used as delimiters to mark fields of data structures. Also it used for hierarchical levels; FS == level 4

GroupSeparator

It used for hierarchical levels; GS == level 3

RecordSeparator

It used for hierarchical levels; RS == level 2

UnitSeparator

It used for hierarchical levels; US == level 1

Space

Space is a graphic character. It causes the active position to be advanced by one character position.

Delete

Usually called backspace on modern machines, and does not correspond to the PC delete key.

Implementations

impl ControlCode

pub const NUL: ControlCode

pub const SOH: ControlCode

pub const STX: ControlCode

pub const ETX: ControlCode

pub const EOT: ControlCode

pub const ENQ: ControlCode

pub const ACK: ControlCode

pub const BEL: ControlCode

pub const BS: ControlCode

pub const HT: ControlCode

pub const LF: ControlCode

pub const VT: ControlCode

pub const FF: ControlCode

pub const CR: ControlCode

pub const SO: ControlCode

pub const SI: ControlCode

pub const DLE: ControlCode

pub const DC1: ControlCode

pub const DC2: ControlCode

pub const DC3: ControlCode

pub const DC4: ControlCode

pub const NAK: ControlCode

pub const SYN: ControlCode

pub const ETB: ControlCode

pub const CAN: ControlCode

pub const EM: ControlCode

pub const SUB: ControlCode

pub const ESC: ControlCode

pub const FS: ControlCode

pub const GS: ControlCode

pub const RS: ControlCode

pub const US: ControlCode

pub const SP: ControlCode

pub const DEL: ControlCode

Trait Implementations

impl AsRef<str> for ControlCode

fn as_ref(&self) -> &str

Performs the conversion.

impl Clone for ControlCode

fn clone(&self) -> ControlCode

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ControlCode

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

Formats the value using the given formatter.

impl From<ControlCode> for u8

fn from(val: ControlCode) -> Self

Performs the conversion.

impl PartialEq<ControlCode> for ControlCode

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.

impl Copy for ControlCode

impl Eq for ControlCode

impl StructuralEq for ControlCode

impl StructuralPartialEq for ControlCode