bytes | Package bytes implements functions for the manipulation of byte slices. |
io | Package io provides basic interfaces to I/O primitives. |
net/url | Package url parses URLs and implements query escaping. |
regexp | Package regexp implements regular expression search. |
sort | Package sort provides primitives for sorting slices and user-defined collections. |
strconv | Package strconv implements conversions to and from string representations of basic data types. |
unicode | Package unicode provides data and functions to test some properties of Unicode code points. |
unicode/utf8 | Package utf8 implements functions and constants to support text encoded in UTF-8. |