The header bar above fenced code blocks: the language in small text, an optional file path, and a file-type icon.
The fence info string carries both, Docusaurus-style:
```elixir title="lib/cherry/cli.ex"Language and title are each optional; a fence with neither renders the
bare <pre> it always did. The header is a <figcaption class="code-head">
inside a <figure class="code-block"> wrapper, and the icon is an empty
span the theme paints with a CSS mask: code-icon code-icon--KEY. The
official themes ship the glyph set (sourced from
devicon, MIT — the same icons
editor file trees use); a language without a glyph falls back to the
generic file icon that .code-icon carries by default.
Summary
Functions
Parses a fence info string into {language, title}, either nil when
absent. The language is the first token as the author wrote it; the
title is the value of a title="…" pair anywhere in the rest.
Wraps a rendered <pre> block in the figure + header. Call only when
parse/1 produced a language or a title.
Functions
Parses a fence info string into {language, title}, either nil when
absent. The language is the first token as the author wrote it; the
title is the value of a title="…" pair anywhere in the rest.
Wraps a rendered <pre> block in the figure + header. Call only when
parse/1 produced a language or a title.