Function pdfshrink::pdf_subdir

pub fn pdf_subdir<P, Q>(inpath: P, subdir: Q) -> Option<PathBuf>where
    P: AsRef<Path>,
    Q: AsRef<Path>,

Returns the subdirectory subdir sibling of inpath.

If there is no extension, or the extension is not .pdf, returns None.

Examples

let before = "some dir/name.pdf";
let after = "some dir/subdir";
assert_eq!(pdf_subdir(before, "subdir"), Some(after.into()));