trim

fn trim(string s) -> Result<string, string>

use text::{trim};

Returns s without leading and trailing ASCII whitespace (space, tab, CR, LF).

Other Unicode whitespace is kept. The Result never holds an error for valid input; it exists because trimming works on bytes.

Parameters#

Returns#

Result<string, string>

Contracts#

Checked according to --contracts (see Contracts).

ensures ok_len(result) >= 0 && ok_len(result) <= s.len()

Examples#

use text::{trim};
use tests::assert;
assert!((trim("\t  key = value \r\n") ?? "") == "key = value");

See also#

• Result
• byte_len: Returns the length of s in bytes; the same as s.len().
• slice: Returns the part of s from byte offset start up to (not including) end.
• trim_start: Returns s without leading ASCII whitespace (space, tab, CR, LF).
• trim_end: Returns s without trailing ASCII whitespace (space, tab, CR, LF).
• rfind: Returns the byte offset of the last needle in hay, or -1.
• split_at: Splits s at byte offset at into the part before and the part from at on.
• join: Returns the parts concatenated with sep between each pair.