`copy_until_placeholder`

std::size_t copy_until_placeholder(FormatBuffer &buffer, std::string_view format) noexcept

Parameters

Name	Type
`buffer`	`FormatBuffer &`
`format`	`std::string_view`

std::size_t

The offset just past that "{}", or std::string_view::npos when there is none.

Copies format up to its first "{}" with "{{" and "}}" unescaped.