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. |
go/ast | Package ast declares the types used to represent syntax trees for Go packages. |
go/token | Package token defines constants representing the lexical tokens of the Go programming language and basic operations on tokens (printing, predicates). |
io | Package io provides basic interfaces to I/O primitives. |
math | Package math provides basic constants and mathematical functions. |
os | Package os provides a platform-independent interface to operating system functionality. |
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. |
text/tabwriter | Package tabwriter implements a write filter (tabwriter.Writer) that translates tabbed columns in input into properly aligned text. |
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. |