Parses tags in the body section (character vector) and init collection (list of vars defined in the init section). This is an internal function.
parseTags(bodySection, initCollection)A list with three elements, where each list represents the location, start character, end character, tag type, etc. of each tag.
initTags: initMatches
bodyTags: bodyMatches
bodyText: bodySection
The body
The initial collection