Takes content and a tag, calculates a numbering for all labels with the given tag, and replaces all unnumbered labels with their numbered counterparts.

Returns the string representation of a parsed label.

Indexes all labels parsed from the given content by their string representations.

Numbers all un-numbered labels in the given slice.

Finds all labels (as defined by LabelRegexp) in the given content.

Finds all the labels in the given content, and also marks their line numbers.

Groups the labels in the given content by their tags.

Matches all strings satisfying: 1.

Represents a parsed label.