| bufio | Package bufio implements buffered I/O. It wraps an io.Reader or io.Writer object, creating another object (Reader or Writer) that also implements the interface but provides buffering and some help for textual I/O. |
| 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/mitchellh/go-wordwrap | |
| github.com/protocolbuffers/txtpbfmt/ast | Package ast provides data structure representing textproto syntax tree. |
| github.com/protocolbuffers/txtpbfmt/unquote | Package unquote provides a function to unquote txtpb-formatted quoted string literals. |
| math | Package math provides basic constants and mathematical functions. |
| regexp | Package regexp implements regular expression search. |
| strconv | Package strconv implements conversions to and from string representations of basic data types. |
| strings | Package strings implements simple functions to manipulate UTF-8 encoded strings. |