CrispyPin/lili
2
1
Fork 0
Code Issues Pull requests Releases Wiki Activity

handle end of file and empty files properly

Browse source
This commit is contained in:
Crispy 2023-02-26 10:33:15 +01:00
parent b75fb1ae47
commit c6090b3cc1
1 changed files with 22 additions and 7 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

29
src/editor.rs
View file

@ -9,6 +9,7 @@ use termion::{
event::{Event, Key},
input::TermRead,
raw::IntoRawMode,
terminal_size,
};
const TAB_SIZE: usize = 4;
@ -92,7 +93,7 @@ impl Editor {
fn move_right(&mut self) {
if self.cursor.column < self.current_line().len() {
self.cursor.column += 1;
} else if self.cursor.line < self.lines.len() {
} else if self.cursor.line < self.lines.len() - 1 {
self.cursor.line += 1;
self.cursor.column = 0;
}
@ -106,7 +107,7 @@ impl Editor {
}
fn move_down(&mut self) {
if self.cursor.line < self.lines.len() {
if self.cursor.line < self.lines.len() - 1 {
self.cursor.line += 1;
self.cursor.column = self.cursor.column.min(self.current_line().len());
}
@ -126,6 +127,8 @@ impl Editor {
this_line.start = index + 1;
}
}
this_line.end = self.text.chars().count();
self.lines.push(this_line);
}
fn draw(&self) {
@ -139,6 +142,13 @@ impl Editor {
text.replace('\t', &" ".repeat(TAB_SIZE))
);
}
print!(
"{}{}, {}",
cursor::Goto(1, terminal_size().unwrap().1),
self.cursor.line,
self.cursor.column
);
print!(
"{}",
cursor::Goto(
@ -150,20 +160,25 @@ impl Editor {
}
fn insert_char(&mut self, ch: char) {
// eprintln!("inserting {ch} at {}", self.index());
self.text.insert(self.index(), ch);
self.find_lines();
self.move_right();
}
fn backspace(&mut self) {
self.text.remove(self.index() - 1);
self.find_lines();
self.move_left();
if self.index() > 0 {
self.text.remove(self.index() - 1);
self.move_left();
self.find_lines();
}
}
fn delete(&mut self) {
self.text.remove(self.index());
self.find_lines();
if self.index() < self.text.len() {
self.text.remove(self.index());
self.find_lines();
}
}
fn index(&self) -> usize {