Module help_template 

The named sections a help_template may place, and how one is filled in.

A spec can say what order its help sections come in — help_template "{{about}}{{usage}}…" — and nothing more than that. The template holds a closed vocabulary of pre-rendered sections rather than the metadata behind them, which is what lets an interpreter, a compiled parser and a generated Go program agree: they agree on where each section starts and ends, not on a template language’s semantics.

The twins of this module are usage_argv::help’s SECTIONS and Sections, and Go’s helpSections. conformance/tests/render.rs is what says the three still agree.

Constants

SECTIONS

The sections a template may name, and nothing else.

Functions

check

Whether every {{…}} in a template names a section.

is_set

Whether a template is one an author wrote, rather than an empty or whitespace-only string that should render as the default page.

substitute

Fill a template in, asking section for each name it holds.