use map()

This commit is contained in:
Taylor Skinner 2018-06-04 17:19:34 -06:00 committed by David Peter
parent 26dbdf4fa0
commit 3b1dcca5d0
1 changed files with 10 additions and 11 deletions

View File

@ -282,7 +282,7 @@ impl App {
term_width: Term::stdout().size().1 as usize,
files,
theme: self.matches.value_of("theme"),
line_range: LineRange::from(self.matches.value_of("line-range")),
line_range: self.matches.value_of("line-range").map(LineRange::from),
})
}
@ -351,20 +351,19 @@ pub struct LineRange {
}
impl LineRange {
pub fn from(value: Option<&str>) -> Option<LineRange> {
match value {
None => None,
Some(range_raw) => {
return LineRange::parse_range(range_raw).ok();
}
pub fn from(range_raw: &str) -> LineRange {
LineRange::parse_range(range_raw).unwrap_or(LineRange::new())
}
pub fn new() -> LineRange {
LineRange{
lower: usize::min_value(),
upper: usize::max_value(),
}
}
pub fn parse_range(range_raw: &str) -> Result<LineRange> {
let mut new_range = LineRange{
lower: usize::min_value(),
upper: usize::max_value(),
};
let mut new_range = LineRange::new();
if range_raw.bytes().nth(0).ok_or("No first byte")? == b':' {
new_range.upper = range_raw[1..].parse()?;