pub fn option_from_command(command: &SyntaxNode) -> Option<OptionDecl>Expand description
Extract an OptionDecl from a \DeclareOption COMMAND node. The non-star form
\DeclareOption{name}{code} reads the name from group 0; the starred default
handler \DeclareOption*{code} (recognized by the * WORD the parser folds into
the invocation) records name: None.