| encoding/hex | Package hex implements hexadecimal encoding and decoding. |
| errors | Package errors implements functions to manipulate errors. |
| fmt | Package fmt implements formatted I/O with functions analogous to C's printf and scanf. |
| github.com/go-text/typesetting/font | Package font provides an high level API to access Opentype font properties. |
| github.com/go-text/typesetting/font/opentype | Package opentype provides the low level routines required to read and write Opentype font files, including collections. |
| github.com/go-text/typesetting/font/opentype/tables | |
| github.com/go-text/typesetting/language | |
| github.com/go-text/typesetting/unicodedata | Package unicodedata provides additional lookup functions for unicode properties, not covered by the standard package unicode. |
| math | Package math provides basic constants and mathematical functions. |
| math/bits | Package bits implements bit counting and manipulation functions for the predeclared unsigned integer types. |
| 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. |
| strings | Package strings implements simple functions to manipulate UTF-8 encoded strings. |
| unicode | Package unicode provides data and functions to test some properties of Unicode code points. |