Content expressions describe what children a node allows, e.g. "block+",
"inline*", "listItem+", or sequences like "heading block*".
Supported grammar (see ADR-0002): whitespace-separated terms, each a node
name or group name with an optional ?, * or + quantifier. Matching is
greedy and sequential.
Content expressions describe what children a node allows, e.g.
"block+","inline*","listItem+", or sequences like"heading block*".Supported grammar (see ADR-0002): whitespace-separated terms, each a node name or group name with an optional
?,*or+quantifier. Matching is greedy and sequential.