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clippy: use strip_prefix instead of manual stripping

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it's less error-prone (off-by-one!)

Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
This commit is contained in:
Fabian Grünbichler
2021-01-18 13:50:28 +01:00
parent 87152fbac6
commit 365915da9a
11 changed files with 43 additions and 51 deletions
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8
src/tools/disks/zpool_list.rs
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@ -31,8 +31,8 @@ pub struct ZFSPoolInfo {
fn parse_optional_u64(i: &str) -> IResult<&str, Option<u64>> {
if i.starts_with('-') {
Ok((&i[1..], None))
if let Some(rest) = i.strip_prefix('-') {
Ok((rest, None))
} else {
let (i, value) = map_res(recognize(digit1), str::parse)(i)?;
Ok((i, Some(value)))
@ -40,8 +40,8 @@ fn parse_optional_u64(i: &str) -> IResult<&str, Option<u64>> {
}
fn parse_optional_f64(i: &str) -> IResult<&str, Option<f64>> {
if i.starts_with('-') {
Ok((&i[1..], None))
if let Some(rest) = i.strip_prefix('-') {
Ok((rest, None))
} else {
let (i, value) = nom::number::complete::double(i)?;
Ok((i, Some(value)))