fn draw_rows(&self) -> Vec<u8> {
        let mut v = Vec::new();
        for y in 0..self.screenrows {
            v.extend(CLEAR_LINE);
            let filerow = self.position.rowoff + y;
            if filerow >= self.rows.len() {
                if self.rows.is_empty() && y == self.screenrows / 3 {
                    let welcome = format!("Kilo editor -- version {}\r\n", VERSION);
                    let msglen = min(welcome.len(), self.screencols as usize);
                    let padding = ((self.screencols as usize) - msglen) / 2;
                    for i in 0..padding {
                        v.push(if i == 0 { b'~' } else { b' ' });
                    }
                    v.extend(&welcome.as_bytes()[0..msglen]);
                } else {
                    v.extend(b"~\r\n");
                }
            } else {
                let line = &self.rows[filerow].rendered;
                let available_text = max(line.len() as i32 - self.position.coloff as i32, 0);
                let len = min(available_text, self.screencols as i32) as usize;
                let start = if len > 0 { self.position.coloff } else { 0 };

                let visible_line = line[start..start + len].as_bytes();
                let highlights = &self.rows[filerow].highlights[start..start + len];
                let mut current_color = Highlight::color(Highlight::Normal);

                // Add a code for the specified color if we aren't already using that color
                for (&c, &hl) in visible_line.iter().zip(highlights) {
                    let color = Highlight::color(hl);
                    if current_color != color {
                        v.extend(format!("\x1b[{}m", color).as_bytes());
                        current_color = color;
                    }
                    v.push(c)
                }

                // Set back to the normal color at the end of the line
                if current_color != Highlight::color(Highlight::Normal) {
                    v.extend(b"\x1b[39m");
                }
                v.extend(b"\r\n")
            }
        }
        v.extend(CLEAR_LINE);
        v
    }
/// Return a single vector of all the row content that should be drawn
///
/// Renders each of the lines in `rows` and applies the specified
/// color codes for syntax highlighting. If there is no file, lines
/// appear with `~`
Return a single vector of all the row content that should be drawn
Renders each of the lines in `rows` and applies the specified
color codes for syntax highlighting. If there is no file, lines
appear with `~`
Return a single vector of all the row content that should be drawn Renders each of the lines in ` rows ` and applies the specified color codes for syntax highlighting . If there is no file lines appear with ` ~ `
fn draw_rows(&self) -> Vec<u8> {
        let mut v = Vec::new();
        for y in 0..self.screenrows {
            v.extend(CLEAR_LINE);
            let filerow = self.position.rowoff + y;
            if filerow >= self.rows.len() {
                if self.rows.is_empty() && y == self.screenrows / 3 {
                    let welcome = format!("Kilo editor -- version {}\r\n", VERSION);
                    let msglen = min(welcome.len(), self.screencols as usize);
                    let padding = ((self.screencols as usize) - msglen) / 2;
                    for i in 0..padding {
                        v.push(if i == 0 { b'~' } else { b' ' });
                    }
                    v.extend(&welcome.as_bytes()[0..msglen]);
                } else {
                    v.extend(b"~\r\n");
                }
            } else {
                let line = &self.rows[filerow].rendered;
                let available_text = max(line.len() as i32 - self.position.coloff as i32, 0);
                let len = min(available_text, self.screencols as i32) as usize;
                let start = if len > 0 { self.position.coloff } else { 0 };
                let visible_line = line[start..start + len].as_bytes();
                let highlights = &self.rows[filerow].highlights[start..start + len];
                let mut current_color = Highlight::color(Highlight::Normal);
                // Add a code for the specified color if we aren't already using that color
                for (&c, &hl) in visible_line.iter().zip(highlights) {
                    let color = Highlight::color(hl);
                    if current_color != color {
                        v.extend(format!("\x1b[{}m", color).as_bytes());
                        current_color = color;
                    }
                    v.push(c)
                }
                // Set back to the normal color at the end of the line
                if current_color != Highlight::color(Highlight::Normal) {
                    v.extend(b"\x1b[39m");
                }
                v.extend(b"\r\n")
            }
        }
        v.extend(CLEAR_LINE);
        v
    }
fn draw_rows ( & self ) -> Vec < u8 > { let mut v = Vec :: new ( ) ; for y in 0 .. self . screenrows { v . extend ( CLEAR_LINE ) ; let filerow = self . position . rowoff + y ; if filerow >= self . rows . len ( ) { if self . rows . is_empty ( ) && y == self . screenrows / 3 { let welcome = format ! ( " \r \n " VERSION ) ; let msglen = min ( welcome . len ( ) , self . screencols as usize ) ; let padding = ( ( self . screencols as usize ) - msglen ) / 2 ; for i in 0 .. padding { v . push ( if i == 0 { b'~' } else { b' ' } ) ; } v . extend ( & welcome . as_bytes ( ) [ 0 .. msglen ] ) ; } else { v . extend ( b" \r \n " ) ; } } else { let line = & self . rows [ filerow ] . rendered ; let available_text = max ( line . len ( ) as i32 - self . position . coloff as i32 , 0 ) ; let len = min ( available_text , self . screencols as i32 ) as usize ; let start = if len > 0 { self . position . coloff } else { 0 } ; let visible_line = line [ start .. start + len ] . as_bytes ( ) ; let highlights = & self . rows [ filerow ] . highlights [ start .. start + len ] ; let mut current_color = Highlight :: color ( Highlight :: Normal ) ; // Add a code for the specified color if we aren't already using that color for ( & c , & hl ) in visible_line . iter ( ) . zip ( highlights ) { let color = Highlight :: color ( hl ) ; if current_color != color { v . extend ( format ! ( " \x1b " color ) . as_bytes ( ) ) ; current_color = color ; } v . push ( c ) } // Set back to the normal color at the end of the line if current_color != Highlight :: color ( Highlight :: Normal ) { v . extend ( b" \x1b " ) ; } v . extend ( b" \r \n " ) } } v . extend ( CLEAR_LINE ) ; v }
Return a single vector of all the row content that should be drawn
Renders each of the lines in `rows` and applies the specified
color codes for syntax highlighting.
Return a single vector of all the row content that should be drawn Renders each of the lines in ` rows ` and applies the specified color codes for syntax highlighting .
&self