| bytes | Package bytes implements functions for the manipulation of byte slices. |
| fmt | Package fmt implements formatted I/O with functions analogous to C's printf and scanf. |
| github.com/gohugoio/hugo/bufferpool | Package bufferpool provides a pool of bytes buffers. |
| github.com/gohugoio/hugo/helpers | Package helpers implements general utility functions that work with and on content. |
| io | Package io provides basic interfaces to I/O primitives. |
| regexp | Package regexp implements regular expression search. |
| unicode/utf8 | Package utf8 implements functions and constants to support text encoded in UTF-8. |