| errdefer | Package errdefer provides functions for running operations that must be deferred until the end of a function, but which may return errors that should be returned from the function. |
| flagvalue | Package flagvalue provides flag.Value implementations. |
| godoc | Package godoc provides the means of converting parsed Go source information into a documentation subset of it. |
| gosrc | Package gosrc is the part of the pipeline of doc2go responsible for finding Go packages and loading information about them. |
| highlight | Package highlight provides support to highlight source code blocks. |
| html | Package html renders HTML from godoc.Package. |
| iotest | Package iotest provides utilities for testing IO-related code. |
| linebuf | Package linebuf provides line-buffered IO utilities. |
| must | Package must provides helper functions to assert program invariants. |
| pagefind | Package pagefind provides access to the pagefind CLI. |
| pathtree | Package pathtree provides a data structure that stores values organized under a tree-like hierarchy where values from higher levels cascade down to lower levels unless the lower levels define their own values. |
| pathx | Package pathx provides extensions to the path package. |
| ptr | Package ptr provides Of, to turn literals into pointers. |
| relative | Package relative turns paths and file paths relative with string manipulation exclusively. |
| sliceutil | Package sliceutil contains generic functions for working with slices. |