Function grep_cli::patterns_from_path

pub fn patterns_from_path<P: AsRef<Path>>(path: P) -> Result<Vec<String>>

Read patterns from a file path, one per line.

If there was a problem reading or if any of the patterns contain invalid UTF-8, then an error is returned. If there was a problem with a specific pattern, then the error message will include the line number and the file path.