fn append_quoted()

in crates/figterm/src/pty/cmdbuilder.rs [469:508]

• 38 lines of code
• 15 McCabe index (conditional complexity)

    fn append_quoted(arg: &OsStr, cmdline: &mut Vec<u16>) {
        if !arg.is_empty()
            && !arg.encode_wide().any(|c| {
                c == ' ' as u16 || c == '\t' as u16 || c == '\n' as u16 || c == '\x0b' as u16 || c == '\"' as u16
            })
        {
            cmdline.extend(arg.encode_wide());
            return;
        }
        cmdline.push('"' as u16);

        let arg: Vec<_> = arg.encode_wide().collect();
        let mut i = 0;
        while i < arg.len() {
            let mut num_backslashes = 0;
            while i < arg.len() && arg[i] == '\\' as u16 {
                i += 1;
                num_backslashes += 1;
            }

            if i == arg.len() {
                for _ in 0..num_backslashes * 2 {
                    cmdline.push('\\' as u16);
                }
                break;
            } else if arg[i] == b'"' as u16 {
                for _ in 0..num_backslashes * 2 + 1 {
                    cmdline.push('\\' as u16);
                }
                cmdline.push(arg[i]);
            } else {
                for _ in 0..num_backslashes {
                    cmdline.push('\\' as u16);
                }
                cmdline.push(arg[i]);
            }
            i += 1;
        }
        cmdline.push('"' as u16);
    }