Struct PieceTable 

pub struct PieceTable { /* private fields */ }

Implementations

impl PieceTable

pub fn from_file(path: &Path) -> Result<PieceTable, Error>

Create new PieceTable using a file as read_buffer.

Examples

use piecetable::PieceTable;
use std::path::Path;

let mut piecetable = PieceTable::from_file(Path::new("test.txt")).unwrap();

Errors

Possible error when opening file.

Possible error when reading metadata of file.

pub fn from_str(buf: &str) -> PieceTable

Create new PieceTable using a base string as read_buffer.

Examples

use piecetable::PieceTable;

let mut piecetable = PieceTable::from_str("Buenos dias");

pub fn display_result(&self) -> Result<String, Error>

Join pieces reading from read_buffer and append_buffer.

Examples

use piecetable::PieceTable;

let piecetable = PieceTable::from_str("Buenos dias");

println!("{}", piecetable.display_result().unwrap());

Errors

Posible error when reading file to string.

pub fn insert(&mut self, buf: &str, index: usize)

Insert string slice in piece table.

split_index is the global index for the starting character or the new string slice.

Examples

use piecetable::PieceTable;

let buffer = "Buenos dias, que buen clima hoy";
//                       |
//                      11
let mut piece_table = PieceTable::from_str(buffer);

piece_table.insert(" Matias", 11);

assert_eq!("Buenos dias Matias, que buen clima hoy", piece_table.display_result().unwrap());

pub fn delete_char(&mut self, char_index: usize)

Delete character at position char_index

Examples

use piecetable::PieceTable;

let buffer = "Mucho gus8to";
//                     |
//                     9
let mut piece_table = PieceTable::from_str(buffer);

piece_table.delete_char(9);

assert_eq!("Mucho gusto", piece_table.display_result().unwrap());

pub fn save_file(&mut self) -> Result<usize, &str>

Save piecetable to file

Expamples

use piecetable::PieceTable;
use std::{
    path::Path,
    fs,
    io::Write
};

{
    let mut file = fs::File::create("test.txt").unwrap();
    file.write_all(b"Buenos dias").unwrap();
}

let mut piecetable = PieceTable::from_file(Path::new("test.txt")).unwrap();
piecetable.insert(" Matias", 11);

let _file_length: usize = piecetable.save_file().unwrap();

Errors

Returns error if piecetable does not contain a filepath to save the pieces to.

pub fn save_to_file(&mut self, path: &Path) -> Result<usize, Error>

Save piecetable to new filepath and modify filename of piecetable if it exists.

Examples

use piecetable::PieceTable;
use std::path::Path;

let mut piecetable = PieceTable::from_str("Buenos dias");
let _new_file_length = piecetable.save_to_file(Path::new("test.txt")).unwrap();

Errors

Error creating file Error opening file Error reading file Error reading metadata

Trait Implementations

impl Debug for PieceTable

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

Formats the value using the given formatter.