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Another formulation would be to specify that an element/group is delimited, but that the terminating markup is not consumed, and hence, must be consumed by whatever comes next in the model.

Character Class Entities

(now

We badly need an entity that means 'any whitespace that is not a line ending'. This avoids the specification of separators like:

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A possible good name is %LSP*; where the "L" is for "Linear" as in "within a line", meaning specifically matches tab or space characters. (Exactly U+0009 and U+0020, not other Unicode space-like characters)

5 new entities are actually needed: %LSP; %LSP*; %LSP+; %SP*; %SP+;

Summary Functions/Operations

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