rsvim_core 0.1.2

The core library for RSVIM text editor.
Documentation 
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//! ASCII char.

use ascii::AsciiChar;
use std::fmt;

pub mod end_of_line;

/// The formatter for ASCII control code in [`AsciiChar`], helps implement the `Debug`/`Display` trait.
pub struct AsciiControlCodeFormatter {
  value: AsciiChar,
}

/// Build the ASCII char formatter from it.
///
/// # Panics
///
/// If the value is not a valid ASCII control code.
impl From<AsciiChar> for AsciiControlCodeFormatter {
  fn from(value: AsciiChar) -> Self {
    debug_assert!(value.is_ascii_control());
    AsciiControlCodeFormatter { value }
  }
}

impl fmt::Display for AsciiControlCodeFormatter {
  fn fmt(&self, f: &mut fmt::Formatter<'_>) -> Result<(), fmt::Error> {
    match self.value {
      AsciiChar::Null => write!(f, "^@"),
      AsciiChar::SOH => write!(f, "^A"),
      AsciiChar::SOX => write!(f, "^B"),
      AsciiChar::ETX => write!(f, "^C"),
      AsciiChar::EOT => write!(f, "^D"),
      AsciiChar::ENQ => write!(f, "^E"),
      AsciiChar::ACK => write!(f, "^F"),
      AsciiChar::Bell => write!(f, "^G"),
      AsciiChar::BackSpace => write!(f, "^H"),
      AsciiChar::Tab => write!(f, "\t"), // \t
      AsciiChar::LineFeed => writeln!(f, "^J"), // \n
      AsciiChar::VT => write!(f, "^K"),
      AsciiChar::FF => write!(f, "^L"),
      AsciiChar::CarriageReturn => write!(f, "^M"), // \r
      AsciiChar::SI => write!(f, "^N"),
      AsciiChar::SO => write!(f, "^0"),
      AsciiChar::DLE => write!(f, "^P"),
      AsciiChar::DC1 => write!(f, "^Q"),
      AsciiChar::DC2 => write!(f, "^R"),
      AsciiChar::DC3 => write!(f, "^S"),
      AsciiChar::DC4 => write!(f, "^T"),
      AsciiChar::NAK => write!(f, "^U"),
      AsciiChar::SYN => write!(f, "^V"),
      AsciiChar::ETB => write!(f, "^W"),
      AsciiChar::CAN => write!(f, "^X"),
      AsciiChar::EM => write!(f, "^Y"),
      AsciiChar::SUB => write!(f, "^Z"),
      AsciiChar::ESC => write!(f, "^["),
      AsciiChar::FS => write!(f, "^\\"),
      AsciiChar::GS => write!(f, "^]"),
      AsciiChar::RS => write!(f, "^^"),
      AsciiChar::US => write!(f, "^_"),
      _ => unreachable!(),
    }
  }
}